Sbc 106 lobe separation. only took 2 hrs to get through.

Sbc 106 lobe separation. These two terms are often confused with each other.
 


Sbc 106 lobe separation the specific numbers (durations, lobe separation angles, etc) are not where the trends lie. 050 and . Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central You can calculate lobe separation by adding the intake and exhaust lobe centerline figures together and dividing the sum by 2 (Ex: 110 intake center line + 114 exhaust center line= 224/2= 112 lobe For those running 110 lobe separation. cam is a mech roller 250/260 106. 4;10 gears. In contrast, a smooth-running high-performance street engine Alright, I bought a hyd. 0cc, compression 13:1, Dart Pro 1 215 Heads 64cc. Engine needs to be a serious build to u On a tight lobe separation, like 106-108 degrees, the engine will build torque quickly and reach its peak early. Now if we add the intake and exhaust centerlines together and divide by 2, this will generate the lobe separation angle (LSA). Looking to have peak power around 6800-7000rpm. 60 over 400) could be pushing the limit due to over heating & later engine failure. Intake suggestions SBC. Save. that appears in the right column of lobe selection chart. If we were to advance this cam 4 degrees, we would install it at 102 degree Lobe Centerline and 110 degree Lobe Centerline if we retarded the cam 4 degrees. Fair idle, good all around performance, good vacuum, computer compatible with chip. I am looking at either a 175cc or 195cc head ((ZZ4, RPM manifold, 3:73 gears, 1 5/8 headers, race mufflers)) The reason I went with a 106 sep. Also, if your running this on the street, how are your brakes responding, thanks in advance. Flat Tappet Heavy pro street/bracket, oval track 1/4-3/8 mile. The disadvantage is bad fuel economy and less low end torque. 630/0. Good power from 3000-6000. 714/. A buddy of mine with a 331 is running a similar cam to mine, 288/294 @. 282 duration and 106 lobe separation. This is because the Where in the America’s we called the Lobe Centerline Angle (LCA) as the Lobe Separation Angle (LSA) which is the distance in crank degrees between the intake and exhaust lobe‘s mid duration points. Bracket race S 10 extended cab 115" WB tube chassis 4 link. The 118 might catch up at 6000. 47/104 on a 150 hit at 3470 lbs. It performs quite well in my bracket car. HRC180235-10: Lobe Separation Angle: 112 Intake Centerline: 108 Valve Lash: Hyd. 390 . My suggestion has 9 degrees more overlap, but closes the intake valve only 2. 4:1 flat top slugs,Dart Pro-1 aluminum 230 heads w/2. 050 and 102 lobe sep, 750 carb, 3500-4000 stall, 4. Naturally Lobe Separation (degrees): 102 Camshaft Gear Attachment: 3-bolt it should be 106 degree lobe separation, installed 4 degrees advanced Vizard is a proponent of using 104 or 102 degrees lsa on under valved 400 sbc engines. 700 cfm holly . 450 234/234 @ . 110° Lobe Separation Angle and 106° Intake Lobe Find Camshafts 107 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Summit Racing™ Pro SBC 4-7 Swap Camshafts SUM-1207 Pro SBC Stage 8 Hyd. That said, it's been put forward here, with great debate, that certain engine profiles (and maybe I'm talking about a 10. did Comp say to squeeze the lobe centers-comp recommends for 9:1 and 3000 stall and use 110 LC and 106 ICL but no mention of 383 my take is that is a conservative (but not very conservative) cam Lobe Separation (degrees):110 Camshaft Gear Attachment:3-bolt Location: Griffith,IN. Power glide with a brake and a 4500 converter. (ICL + ECL) / 2 = LOBE SEPARATION ANGLE (LSA) LSA is a RESULT of the PROPER events. Jump to Latest 217 cfm at 0. 050 method of deferring is usually the better route unless In fact, I spec'd the E-4 exhaust lobe and same 108 degree LSA but used a different intake lobe having 6 degrees less listed duration @ 0. spoke to the tech rep and he said it between a smooth and rough idle cam only took 2 hrs to get through a few yrs ago, when i replaced with a ruff idle the tech said summit's are built by comp. The sound difference between the two LSAs is OP, I just pulled out a cam that had a 110 LSA, and installed the same cam (almost identical, maybe 6 degrees +-) with a 106 LSA, and I'm happier in every way with the new cam. 112 lobe seperarion on a cam 04-10-03 10:20 AM - Post# 209744 In response to BowtieFreak There may be little difference in the 2 degrees you mention. » Thu Feb 10, Victor Jr on the 355 assuming the cam is 106-108 lobe center Motown on the second combo or a Victor E. My original combo i had in mind was keith black 11. 5 rockers 312/323 Advertised Dur 278/286 @50 108 LSA Motor is Dart little M 415 c. The basic power range is 1800-5400 RPM. This is sometimes done in racing classes that restrict you to stock or near stock cylinder heads. 520 lift), but one had a 106* and the other had a 112* LSA, how would they compare? See Lobe Separation ﷓ This is the PHYSICAL configuration of the cam in relation to the actual spacing of the intake and exhaust lobes from each other. 630 Exh. 5 roller tip rockers, air gap intake, 750 pro form carb, msd pro billet. 488/. A 118° lobe sep will have a bunch more idle vacuum than the same cam on a 106°. , Lobe Separation 106, Chevy, SBC, 262-400, Each. 680 lift with . 95. 7 inch rods with polished beams and SPS bolts. What Is the SBC Header Bolt Torque? Howards, Mechanical Flat Tappet Cam, Chev SB 262-400 Small Base Circle Adv. Summit Racing™ Pro SBC 4-7 Swap Camshafts SUM-1202 Pro SBC Stage 3 Hyd. 112 degree lobe separation hyd cam. The motor is a 383 SBC, brodix T1 heads, Vr Jr. Will race on motor, and CUSTOM GRIND COMP CAM FOR SBC, HYDRAULIC FLAT TAPPET, CAM BROKE IN AND HARDENED, Matched Lifters, . I've been watching some videos and what's happening is I'm getting absolutely killed on the starts, I start keeping up at the end of the straight (I'm at 6000 RPM at this point 106 degree lobe separation Special R&D Propitiatory lobe profile for a quiet valve-train and long spring life Can be ordered through Terry Walters Performance Parts 5016 Benois Road Roanoke, VA 24018 Telephone: 1 855 722 3248 . I was (still am) confused over how overlap (tight LSA) at idle can create an initial higher cranking psi. 5 Ratio Find Isky Racing Cams Camshaft Kits 108 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! Shop the CLEARANCE SALE! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search For example, in the case of your cam, it has a 106° intake lobe centerline and a 110" lobe separation, making it 4° advanced ground in. It is designed with the following key features: Lower Lobe Separation Angle: The Cam LSA 110 has a lobe separation angle of 110 degrees, which is lower than the Cam LSA 112. ). A while back both of these Find COMP Cams Camshafts 106 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Lift 0. Check for Availability: $239. A cam with narrow lobe separation (under 112°) is biased toward peak power and yields a narrower but higher torque curve. , 109 LSA + 2 Adv, . Lobe Separation: 109 LC Lopey idle. 5 degrees later giving you a broader powerband by about 1000 rpm without much torque loss, if any. the car made over 550 ft lbs and 575 hp at 6k. 6 on the intake and 1. And a lot smoother idle, less cam lope too. = Moderately Tight The engine I am planning to build is a 406-421 sbc with approx. the heads are 186's fully ported and polished . 82" to effectively utilize a cam with 112LSA. this sound about right for the stock hyd cam that came out of the motor. right now it has a port matched super victor intake that i was going to port but ran out of time. 10 rear end ,stock suspension. Oval track, . 040 over 400? I understand that the bigger engines tend to like tighter lsa's. A 406 SBC with 2. for my Camaro (street car). 60 valves,Herbert billet roller cam 261/270 @ 0. 529lift with a 106 lobe sep. yet the 106 LSA on the truck motor would have died. Now here is where it gets tricky. yes its goin in the bucket, it wt's about 1800#. 05" 106 lobe center installed 4 degrees advanced on 102 intake centerline then this would put the exhaust at 110 centerline. ELGE1011PK: Elgin, Hydraulic Flat Tappet Find COMP Cams Camshafts 108 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Lift 0. 026 lash) My combo is 406 sbc with AFR 227 heads, 13. A 110-degree lobe separation angle means that the peak opening points of the intake and exhaust lobes are 110 degrees apart. Find Camshafts 108 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Pro SBC Stage 5 Hyd. 630 Lift w/1. 106° lobe As cam duration increases, this also increases overlap for a given lobe separation. The SAME can be said. Lobe Separation: 106 LC Included Lifters: PVT651080 Mech. 1 3/4 stepped to 1 7/8 headers and dynomax mufflers. Check for Availability: $409. 600 LIFT INTAKE, 262 DURATION @ 50 DEGREES, 268 @ 50 DEGREES ON EXHAUST, 106 LOBE SEPARATION, 4 Degrees ADVANCE CUT IN SN# 358433-19 Grind# [hidden information] Text [hidden information] Find Camshafts 109 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY. -My question is why?-----why is a 106 or a 112 or some other lobe spread specifically wanted for a blower application?-For honest street use you are dealing primarily with mostly closed throttle operation and need decent throttle response--which is probably quite poor with the low compression ratio---so a closer lobe spread quite or advancing the camshaft Since we were only changing the lobe separation angle, we had to make sure every variable (air/fuel, timing, water, air, and oil temps) was identical during testing. Part Number: SUM-K1222. 050 duration 266/272 lobe separation 108. 582 Exh. A guess on power would be 675-725hp. Nitrous engines, which My opinion is your best choice is 108 deg of lobe separation with the intake centerline in around 106 to 107deg. Browse all. 875 stroke sbc. 679/. You can modify the lobe center a little bit but not enough to change the actual overlap of the grind Hi I would like some opinions on the preferred way of degreeing a cam when the lobe center has changed. The cam will be in the 285* Every spec is a road map to what the valves are doing, the most common of which are lift, duration, and lobe-separation angle (LSA)—the latter needing the most In very general, to keep the same top end RPM limit, if you narrow up the lobe center 4° you need to raise the duration at . I am currently looking to replace the camshaft in my SBC. . It has a big 116 lobe separation for a blown set up. This same info will also used to determine the exhaust centerline, which is going to lobe centers and lobe separation are 2 different things . J's 200CC aluminum heads cam was isky hydraulic flat tappet . 500 Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: . It should topend a lil better than the first cam and hit harder I went from 102 to 106 on the dyno and it move 10hp from mid range to peak. HRC112811-08: Howards Cams, Oval Track Lift Rule Hydraulic Flat Tappet Camshaft, Chevy Small Block, 227/231 @ . 3833 Lobe Separation 110 -----Recommended Valve Springs 929-16 -----Chevy 396-454 Blower & Turbo 300BR-14 Cam DESCRIPTION: MECHANICAL ROLLER-Best for Pro street and bracket racing with 671 or larger. 050: 244/250 Valve Lift w/1. Street/strip. But the 106 will make more low-end torque and hp. 050", however due to the stick he is 108° lobe separation where I am 106° lobe separation, although I launch at 5800-6200rpm with an auto, and his is a stick. 500/. wyrmrider Guru Posts: 6988 If you had the same cam (say 236* @ . For your combo I would look at a 108*-110* LSA -- that should be a pretty reasonable compromise for a street-strip 383. Cam timing at . 56 gears and 10x28 slicks. 5 Ratio The lobe separation angle is the sum of the two angles divided by two or 116 + 116 = 232 / 2 = 116 degrees. Based on the article, a 468 BBC with 2. 050, 309,316 advertised, 714/714 lift, 106 lobe separation. Cam is 275*/280*, 675"/665" actual lift at valve. OR RET. CUSTOM GRIND COMP CAM FOR SBC, HYDRAULIC FLAT TAPPET, CAM BROKE IN AND HARDENED, Matched Lifters, . 4 compression SBC 355" it was 252@ . , 107 LSA + 1. In the right combination 106 separation might even be better. 600 LIFT INTAKE, 262 DURATION @ 50 DEGREES, 268 @ 50 DEGREES ON EXHAUST, 106 LOBE SEPARATION, 4 Degrees ADVANCE CUT IN SN# 358433-19 Grind# [hidden information] Text [hidden information] A smaller lobe separation increases overlap, so a smaller lobe separation angle causes the engine's torque to peak early in the power band. 3-bolt (3) Get Results; Intake Valve Lash. The Lobe Separation Angle (LSA) is the distance between the centerlines of the intake and exhaust lobes on the camshaft. Optimum Power band of 3500-7200 RPM. Change from 112° to 108° or 106° would be noticeable, or from 110° to 106° or 104° Performance V8 Engines built by John Nijssenhttp://strokerengine. “Lobe separation angle affects the valve overlap area, and in most cases forced-induction cams are designed with a 112-to-118-degree lobe separation angle. 3:1 SBC, so it's a heavy Typically, narrower lobe separation develops peak torque at lower rpm and widening the separation tends to build peak torque higher in the rpm range. /304 Exh. about 10. Marketplace. 276/282@. Create new listing Camshaft, Billet Roller, SBC, 116 Lobe Separation Blower cam, Erson cam, 4-7 swap. 528 1. Member Posts: 120 Lobe separation angle is 107 on the 355. 600 lift 106 LOBE SEPARATION - Car Engines & Engine Parts - Santa Cruz, California | Facebook Marketplace A cam with a smaller duration and lobe separation will make more torque and a more effective powerband for a n/a engine compared to a higher duration and lsa cam. com/ • Subtract the lobe separation angle (LSA) from that answer The other was the 268H one on a 110 and one on a 106 and then an odd ball left the very early closing intake intake lobe of the 106 LSA and moved the exhaust lobe only . The legacy lives on today through Clay Smith Cams. Estimated Ship Date: Oct 21 The engine in question is a 394ci sbc. Where a 106 or 8 would fall to the floor, the wider lobes 110+ will hang on longer, but only with big compression ratios. i need to know the lobe seperation on a cam dynamics sbc part # 10018 grind # 312 06 HTQ any help would be great Thanks Elgin, Hydraulic Flat Tappet Camshaft, Chev SBBR Chev SBBR Lift: . i have a 355 sbc with a 500 lift 302 duration crane cam in it now but i wiped out a lobe and i have to replace it. custom grind comp cam for sbc, hydraulic flat tappet, cam broke in and hardened, matched lifters, . 56 gears the tires are 32x14. 4 ANGLE or CENTERLINE INTAKE "LASH" DUR. If you do choose a rather large cam in duration it will hold on more past the peak even though it could lose peak power as CAMKING said. 6 SR heads 67CC chambers-NOS Fenton 3 duece manifold with 3 Usually if someone uses a 250/250 @. cam specs: hyd. These camshafts are the perfect choice for your next what camshaft would you guys recomend for a 14:1 afr227 super victor 2925? it currently has a small comp roler 258 268 630lift 110 sep. Having a 383 sbc built at a local machine shop for a 3100 lb street car Th400 LOBE SEPARATION 112 INTAKE PHASE 108 ADV. 106 set in at 102 ,260 /266 ,. Narrow lobe separation angle results in lumpy idle Lobe Separation (degrees) 106 This cam was installed at 104 degree intake centerline. I have a C10 with a 10. 300" lift. Free Shipping; Special OrderLoading Estimated Ship Date: Jun 25, 2024 if ordered today. 016 3200-6600. Lobe separation is ground into the camshaft. greywolf Expert I am looking for a cam recommendation for a SBC 23 deg head with a plate system (around 300hp of nitrous). Part Number: CCA-12-870-11. 050" ground on a 110 lobe separation installed on a 105 intake centerline. 650" Comp Cam 264°-270° 0. My motor is a 355 with flat top pistons and angle milled Lobe separation is 112 I've had good luck with this in a 350, 6. Any time you put Lobe separation is 106 degrees. Maybe. 107-109 is normally the best number. Estimated Ship Date: Feb 25, 2025 A friend is rebuilding his SBC-406 and were curious about what cam to run. thanks The 108 lobe separation angle (LSA) is a narrower angle than the 112 LSA, typically ranging from 102 to 108 degrees. Camshafts with a Lobe Lift . If your '112LC' in fact means the cam lobe-separation-angle, and referencing extensive dyno results conducted by David Vizard, your 406" SBC would require an intake valve diameter of 2. 5 on the exhaust But when I got the cam the Cam card said the Lobe Separation was 106 I'm going to call tomorrow to find out what if something went wrong or he changed it to 106 lobe separation for a reason I'm not going to throw the company under the bus until I have the Facts 106° LSA: There is an increasing chance of engine knock at the 106° lobe separation angle. -106 lobe separation Here are some stats of what I have-Early 70's 355 - Fresh rebuild-Flat top pistons - 10:1 compression-World product 2. 1:1 compression minimum. See how the 106 and 110 Lobe Separation Angle cams are practically identical. When it passes the peak torque RPM, it will All of my customers have been happy with tight lobe sepertions and i have replaced a few wider lobe seperation cams in engines for larger duration and tighter lobe seperations My opinion is your best choice is 108 deg of lobe separation with the intake centerline in around 106 to 107deg. 594/594 lift, 112 lobe separation angle, 107 center line, adv duration 305/314, duration at 050'' 242/240 Or comp cam part number 12-433-8. How would this be better than either of the ones I picked? Lobe Separation (degrees): 110 Intake Valve Lash (in): 0. The rear end has 4:10 gears. 500 lift rule, best on tight short tracks. The intake lobe will be first and the exhaust lobe will be second fol-lowed by the lobe separation angle. Find Camshaft Kits 110 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: LABOR. Choosing between a 110 LSA and a 114 LSA camshaft setting is a challenging task. I'm not questioning or doubting your abilities at all. Needs headers and gears. 609 Int. 5 compression, cam 4-7 swap . 521 106 LS: Chevrolet Small Block 262-400 1955-2002 Lobe Separation Angle (LSA) Jump to Latest 106° LSA range. Camshaft Specification Table 383 sbc 10. the guy is Obviously intrinsically tied into the LSA along with duration but the separation angle in and of itself isn't the whole picture. Car is 69 Nova 3050 LBS, 488 rear gears, Powerglide w 1. comhttp://www. 050 with . David_D. And, most of the heads up sbc combinations that I am aware of have LSA around 114° - 118°. Your account. 533. 050, . Car ran strong,12. My question is how would a 106 degree lobe separation hurt my . $275. Here is the cam I am considering: 106 will make higher peak torque and HP than the 110, but over a narrower RPM band. engine specs: 350 sbc, trw forged flat tops, mahle rings, double hump heads w/ 2. It will idle worse. 050" , and exhaust lobe 230 @ . 11:1 CR. 597 Int. Part Number: CCA-12-835-9. Most engine builders prefer 106 degrees of lobe separation when a camshaft is destined for an oval track engine as opposed to the 110 to 112 degrees of separation that characterize a street cam The lobe separation angle required to achieve maximum power is a function of engine size and displacement, with small valve engines requiring tighter LSA's. Made In USA (222) Circle Track (30) Stock Replacement (17) Marine (2) Savings Central Today on Unity Motorsports Garage, We (David Vizard and myself) talk about LSA and how the major Cam companies get it wrong! We discuss the how and why of p A few of these, for our low budget customers, were what we called “Super Stock” rods. 410, 108 LS: A 350cu in oval track racing engine, for example, often runs on a narrow lobe separation angle of 106 degrees. If we advance the intake lobe two degrees to 114 degrees BTDC, then the LSA would be 114 + 116 = 230 / 2 = Defining Lobe Center and It's Importance to Engine Performance: A BlogWhile most of our customers know what lift and duration are, most are unfamiliar with the term Lobe Center and how it affects the engines Find COMP Cams Camshafts 107 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY. Click to expand I'm not the guy to ask about spec'ing a cam but that's a Howards cam that I have in my 355 right now. Low vacuum. In contrast, a smooth-running performance street engine might Find COMP Cams Camshafts 230 int. 5 Adv, . 2650#. Searching for a way to tap into the hidden strengths Lobe Separation - This is the PHYSICAL configuration of the cam in relation to the actual spacing of the intake and exhaust lobes from each other. The trans is a TH350 with a 4,500 RPM stall. 050 on a 110 lobe seperation and are thinking about using a 106 lobe seperation they should go up 6-8 degrees in duration to keep the same top rpm with in 200rpm and to make More Torque and More Horsepower however it will have more overlap which will cause a rougher idle The lobe separation angle is a My friend has an S10 with a 355. Part Number: HRS-CL110071-06. 200 bore by 3. 106* lobe separation, card says install at 102*. Key Features of Cam LSA 110. Im kinda taking a page from an article written by Iskenderian about keeping the intake and exhaust lift the same and going with this summit cam : Brand:Summit Racing Manufacturer's Part Number:SUM-1787 Now on the cam,the second lobe is the EX lobe and the forth lobe is the IN lobe on the #1 cylinder in a (sbc). 5 comp ratio. lifter lunati 300/300 adv duration 520/520 lift 246/246 dur@050. 050" about 6° to 8°. 75, 850 DP; super victor; how about a slightly larger lobe separation? 106 to 108,110 etc. 02 valves would require a 104 LSA. 83 at 130. - Was wondering, for those that are running a 110 ls were having any issues with cam surge or low vacuum. 6 roller rockers to bring lift to . In Stock: $265. Horsepower: The 114 LSA camshaft results in a decrease in high-end horsepower. 520 1. 106° lobe separation or Howards #110713-06 Its all relative. 106 Lobe Separation Any help would be For example, a cam with a 106-degree intake centerline and a 114-degree exhaust centerline has a lobe separation angle of 110 degrees (106 + 114 = 220; 220 2 = 110). Roger Copeland "Only a rich man can afford cheap parts, because he can afford to replace them. Message. 050 on a 106 Lobe Separation. 536 Lobe Separation: 106 LC Rough idle, low & mid-range, good lift rule. Even with a 106 lobe sep and 11. Duration: 276/280 Duration @ . 0. Jump to Latest 106 LSA #2 . 510 1. 0 rods You're splitting the hair too fine to see any noticeable difference in the seat of the pants from just that slight lobe separation change and small duration change. Post by David_D. 290 EXHAUST "LASH" DUR. its a 4. Here are some of the key features of 108 LSA: More overlap: The 108 LSA allows for more overlap between the intake and exhaust valves, which can improve exhaust scavenging and increase low-end torque and mid-range power. Actually a wider lobe separation angle will reduce cranking compression and reduce the chance of detonation. The intake valve closes at 51 degrees after bottom dead center. in Sacramento, CA. ) is only 0. 5:1 355 SBC here) have a specific LSA that will reliably produce the best lbs-ft per HP. 5:1, making over 600 hp, will run on BP 93 unleaded. Pro SBC Retrofit Stage 2 Hyd. I'd steer clear of the last camshaft they gave you, with the Lobe Separation: 106 ° SBC Solid Lifter Tight Lash Cam, 2750-6500 RPM. Been cruising the streets for over 10 years on 98 RON pump gas. ELGE1131PMDL: Elgin, Mechanical Flat Tappet Camshaft & Lifter Set, Chevrolet Small Block, 240/250 @ . 030-over 350 using a few good-breathing parts to make power. When a cam is advanced or retarded, the Lobe Centerline is changed. My first question is, will a given lobe separation angle give you a particular kind of idle regardless of the other cam specs, i. The center of those 2 events is the LOBE CENTERLINE (ECL). 673 lift . BR More performance, less money. The car weights around 3,400 lbs with me in it. Flat-Tappet 4/7 Firing Order Swap Cam, 218/228 Dur. Lobe Separation Angle: 106 Intake Centerline: 102 Valve Lash: Hyd. Listed 6 days ago. Oval track. It is the DESIGNED events that yield CENTERLINE. Timing: 29-32 degrees total at 3100 RPM . It should idle pretty agressively while making a decent amount of vacuum at idle. With new chain it came out at 12. Our rather mild small-block was a 0. /236 exh. 050: 248/252 Lift: . 5:1 Dr. LOBE SEPARATION. So take 106 plus intake center line plus the 118 exhaust center line would be 224 and divide by 2 then you get a For a 350 SBC, Vizard claims the correct LCA is 108 and that 50-55 degrees is the overlap where you start to take a serious hit on the vacuum and low end torque. These Specs Are For The Cam Installed At 106 Intake CL Lobe Lift 0. 100" lift (-3 deg. , Lobe Separation 108, Chevy, SBC, 262-400, Each. Post Obviously intrinsically tied into the LSA along with duration but the separation angle in and of itself isn't the whole picture. It currently has a sbc 383, Chinese 190cc heads, comp extreme energy roller 286r, 11 to 1 compression, victor intake and a alcohol 750 Holley. 050", 110 lobe separation, . lift . 1000-4400. ) Ive learned to know that running a high-horsepower 412(0. For example if lobe 5201 is selected as the intake and 5203 is select-ed as the exhaust, with a 106° lobe separation angle and this configura- Valve overlap duration: The 114 LSA camshaft has a longer valve overlap duration, which means that both the intake and exhaust valves are open for a longer amount of time. Try a 218/230/110+4 Comp Cams grind. 050 intake and 262@. th400 with a 3500 stall . 57 rear gear. 495/. The motor made 628hp @ Find COMP Cams Magnum Solid Cam and Lifter Kits and get Free Shipping on Orders Over $109 at Summit Racing! COMP Cams Magnum solid lifter cam and lifter kits are specifically designed for the street enthusiast looking for more The camshaft timing card included with your cam provides the essential specifications for installing your cam correctly. the Find Clay Smith Cams Camshafts 108 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! The Mr. 645/. and exh. Jump to Latest . But at 108 you will be in a good area. You can use extreme lobe separation angles to crutch up an engine with restrictive cylinder heads. 50 Rockers: . however, the 113deg will still make good power and definetly hang in past peak power better than a tighter LSA. you need more lift and a wider lobe separation like 735 lift in on a 113 lobe separation . 19 intake valves would make maximum power with a 102° LSA. I needed something with a 256@. COMP Cams engineers told me that since the engine I tested featured a single-plane intake manifold the carb is the same as it came out of the box. In the right combination 106 separation might even be Just don't get too agressive with duration AND lobe separation or it will be unbearable on the street. A 350cu in oval track racing engine, for example, often runs on a narrow lobe separation angle of 106 degrees. " R&R Racing. 600 Int. 875" crank. B Original Member Posts: 131 Joined: Tue Apr 17, 2018 10:51 pm Location: 106 lobe center separation 58 overlap Edelbrock air-gap and a 750 vac sec carb I don't think I forgot anything? Top. These two terms are often confused with each other. 026/. For example if I have a cam of say 250 / 255 @ 0. 645 sbc . 625 exhaust valves, the cam has . 5 Ratio, 1800-6250 RPM Range. 016 in. /Hyd. lift/duration/ICL. Duration at 050 inch Lift and get Free Shipping on Orders Over $109 at Summit Racing!. Only Howards was great about cam options info, and not just by email, but on the phone too. 016 Exhaust Valve The lobe separation angle (LSA) has a significant impact on an engine’s performance. Now if you start with a 110 l/s, a 108 l/s the (V) would be more norrow, and a 112 l/s would be wider. , 108 LSA + 2 Adv, . 6 rockers (. 90:1 12 bolt, 275/60R15 Mickey Thompson ET Streets, Cal-Tracs and he states the larger SB engines "like" tighter Lobe centers because they are more restricted by the cyl head. DEG. I have a cam in mind and I want to make sure it perform well in my vehicle. This results in increased valve overlap, and the engine breathes better at lower RPMs. However, if you have two cams with the same lift and duration specs and one has a lobe center of 106 degrees and the other has a lobe center of 112 degrees, there will be a noticeable difference in I notice the wider lobe separation high compression engine holds on ALOT better to tq/hp past peaks. 600 lift 106 LOBE SEPARATION - Auto Parts - Santa Cruz, California | Facebook Marketplace Lobe Separation Angle: 110 Intake Centerline: 106 Valve Lash: Hyd. 1 106 lobe separation. flat tappet 500in/500ex, 106 lobe Camshaft knowledge needed for SBC. 050" is: intake opens 7 degrees BTDC, intake closes 31 degrees ABDC, exhaust opens 39 degrees BBDC, exhaust closes 1 degree BTDC. he did suggest the comp 270/270 but its very close to the summit K1104 355 sbc Holley 780 V/S performer rpm air gap intake 10. Estimated Ship Date: Feb 25, 2025 Engine is a 10. 108-110 LSA Camshaft and Lifter Kits, Hydraulic Flat Tappet, 2,500-6,000 RPM Range, 274/274, 106 Lobe Separation, 108 Centerline, Chevrolet, Small Block, Kit. How about this, use an intake lobe about 234 @ . 6 Ratio, 2200-6400 Range. Re: SBC 383 build Advice shooting for 550hp to 600hp. why the wider lobe seperation???? When I turned 47 years old, I entered into my 5th decade of drag racing. Improved throttle response & low end torque. 510BR Duration: 303/313BR Duration @ . A wide lobe-separation angle would be 112 to 116 degrees. The rear end has 4. 108-110 LSA Find Camshaft Kits 106 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! If you want more torque, and can withstand the idle, go 106 or 105. 65/65 nitrous jetting in a Big Shot Plate. Find Camshafts 114 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! $500-$750 (106) $750-$1000 (25) $1000-$1500 (1) $1500-$2000 (8) Filter Options. It has 14:1 compression, brodix 227 track 1 cylinder heads cnc'd by M2 with 2. Lobe lift for each (int. Horsepower legend began in the early 1930s with camshafts that were hand-ground by Clay Smith to high performance specifications. , 110 LSA + 1 Adv, . You can only look for a vague answer, and that answer is when you tighten the lobe separation up 4° it will IN GENERAL, make more peak torque, rpm faster, and idle much rougher with less vacuum, more cylinder pressure and Find Camshafts 106 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: LABOR Vehicle/Engine Search Vehicle/Engine Search Make/Model Search I left the 110 vs. 106 Intake centerline + 114 degrees of Exhaust Centerline = 220 / 2 = 110 degree LSA. 050: 234/244BR Lobe Separation: 106 LCBR Fair idle. 76 gear, 4800 stall. ) and at 0. You CAN change the Centerline by degreeing. , Lift 0. 3833 0. 08/1. (106° - 109°) will usually have more overlap. 700" lift w/ . 155 X 3. 10 intake valves/1. Top. 533/. 535/. 050", but similar duration at 0. Share I have a cam with a rather tight lobe separation and, am wanting to spray my engine with a little nitrous at the track. Torque builds rapidly, peaks out, then falls off quickly. Mild bracket. 4300 Lobe Separation 107 I have 1. Specs are in the picture but do not have a cam card for it. 688/. These required My current cam is a Comp custom grind 278/286 @ . 450/. More lobe separation causes torque to build more slowly and peak later, but it is spread more evenly over the power band. 14+ Other than that the tq/hp curves will look very similar against cams with less LSA. My 412ci motor will be getting aluminum heads this winter, along with a new cam. Flat-Tappet 4/7 Firing Order Swap Cam, 236/242 Dur. It includes lobe lift, net valve lift, timing points at the Re: 110 vs. is because I wanted BIG lope without having a disgustingly high duration. ditch the hydraulic roller and go to a mechanical roller with around 250 deg @ . Stock Lift Rule, best on ¼ to short 3/8 mile tracks, good torque. 6" rods, JE Dome Pistons 3. 465/. (timing, 12-42 and 50-0 ) Most circle track street stock engines get by fine with single pattern cams, so this custom cam would be similar except the super early exhaust closing to reduce the A hot rodded sbc will not cut it or last long trying. A tighter lobe-separation angle (106 to 110 degrees) will produce a Lobe Separation (degrees) 106 (5) 104 (2) 108 (2) Get Results; Camshaft Gear Attachment. 421 SBC CAM UPGRADE. 75 compression 383 SBC. 6 days ago. Flat-Tappet 4/7 Firing Order Swap Cam, 252/258 Dur. All you street bracket racers int, duration 194, int. LSA is the Lobe Separation Angle or the number of degrees between the intake and exhaust lobe centerlines. Jump to Latest By advancing the camshaft 6 degrees on the intake center line which would make it a 106/112 lobe separation angle then the exhaust center line would move from 112 to 118 degrees. /0. I have ran the crane F3 lobe in a 10. it has an 11 to 1 sbc . Tight lash oval track profile, great power coming off corners. So much to do, so little time Top. 13 gears and 32x14 tires. The engine has about 165 cranking pressure and 9 inches of vacuum at 1000 RPM. Lobe separations gives lots of overlap and lobe centers just happens when the grinder decides how the peak of the lobe will arrive on a specific grind by their tooling. Designed for SBC, but works well Lobe Separation (degrees): 106 Camshaft Gear Attachment: 3-bolt Intake Valve Lash: 0. Estimated Ship Date: Jun 25, 2024 if ordered today. Max Torque Bullet camshaft. It is measured in degrees of camshaft rotation. 480. It has 39 degrees of overlap and is on a 109 degree lobe separation angle with a 106 degree intake centerline. Exhaust Valve Lash: 0. over then 110 and up will be better but any thing under the 106 cam are faster on nitrous I have a 12. the . The best deal in name brand camshafts available! With a large selection of performance grinds Elgin has you covered. Intake: Exhaust: Intake: Exhaust: Intake: Exhaust: ARC C103: 250: 260: 286: 296. 525/. Wide lobe separation angles span 110 to 118 degrees. 050 on the intake. 473 1. Generally, a cam with wider lobe separation (112°-116°) will make it's power over a wider rpm band. 355-377 ci, high torque 1/4-3/8 mile oval power; IMCA Approved; SBC V8 Solid Mechanical Lifters. 016/. (I ran 1. 553: 106. This is ground into the cam and can't be In my simple world, LC (lobe center) = LSA (lobe separation angle) on the cam. does lobe separation have any thing to do with the way the engine sounds? i see 106 up to about 116 give or take . 5 compression Forged aluminum pistons forged scat crank Eagle 6. 600 lift intake, 262 duration @ 50 degrees, 268 @ 50 degrees on exhaust, 106 lobe separation, 4 CUSTOM GRIND SBC . 673" 106° solid roller, Super vic Demon 850 1 5/8"x 3" 18 " pipe Th 400 5000 stall 28" x10"X15", 4. 283" so no duration listed for 0. 627 106 lobe separation, a Professional Products single Narrow lobe separation angles range from 106 to 109 degrees. 520/540 lift, adv duration 288/294, duration at The one in this example is installed on a 106 Lobe Centerline. This results in more overlap between the intake and exhaust valves, A wide lobe seperation like 113 deg is not the optimum choice with any 23 degree heads, especially the 235's which still have the pushrod pinch. 80 w/stock heads dying at 5400rpm replaced heads after going over mucho flow charts,and reading that,Smokey U stated that its the and its on a 106 lobe separation. 540 1. For instance the old PS truck motors. Part Number: CCA-12-872-11. 106 or 108 lobe separation works well as does 104. 050 exhaust ground on a 106 LS. Then you would need a loose Now lets move to the exhaust. 5:1 compression, Holley 300-25 intake, 950 APD alcohol carb, no power adders, 3465# car with powerglide, 6100 stall FTI converter, 5. (3) Mechanical Roller, Duration 296 Int. These were stock 5. they said both cams I picked were too big. Old Ultradyne grind. intake, 750 dbl pmper. i, 3. The basic engine combo's are the same, with a few things different due to transmissions. 1/8 only. Ran this engine with cam at 102* intake centerline for several seasons. Just pondering the effect of advancing a cam on a 13:1 421 SBC. 12 to 1 comp, old set of 461 heads, solid flat tappet cam 248/253 @. Flat top 350, Sportsman II heads (ported), Professional Products Intake 750 carb, the above camshaft. intake, When I was trying to get help with the cam in my 350 SBC, I found the same issue. 60 valves, 1. dart 210 heads that flowed right at 300 on the intake. 3:1 comp 406 sbc. SBC-406, 4. 040" over 400 SBC, Canfield heads, Lunati solid 239/249 @ . 200" lift (+3 deg. 114 LSA would be narrow, yet a 360 SS motor would die with a 114 LSA because the exhaust is way too early. 11. 5 Ratio, . with a 250 shot of nos . You CANNOT change it (Unless you reground the cam). Find COMP Cams Camshafts 110 Lobe Separation (degrees) and get Free Shipping on Orders Over $109 at Summit Racing! Summit Racing SpeedCard - learn how to get 15% back up to $150 Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Howards, Mechanical Flat Tappet Camshaft, Chev SB 262-400 1955-1998 Advertised Duration: 272/278 Duration @ . performancev8engines. Since we wanted to cover the broadest separation spectrum for street cams, we asked Comp to grind 106-, 108-, 110-, 112-, and 114-degree lobe separations to see how that alone would affect power. 020 in. General engine tech -- Drag Racing to Circle Track. 600 Exh. 642 lift , 106 lobe separation, can ship at buyers expense SBC solid roller cam - Car Brakes & Brake Parts - Kansas City, Missouri | Facebook Marketplace Facebook 406 SBC Roller Cam suggestions. roller 228/234 dur . e. 390/. The Cam LSA 110 is a popular choice for high-performance street applications. In Stock: $254. VARYING LOBE SEPARATION ANGLE Tighten : Moves Torque to Lower RPM Increases Maximum Torque 108-106 Deg. The engine will go in a tube chassis 2400lb car with 5. I thought the 106 LS made it too big. Case in point, I once had a 406 SBC that had a solid lifter circle track cam with 106 LSA, very detonation prone. 540 Lobe Separation: 106 LC 2500-6500. More "peaky", so to speak. 3200-6000. The exhaust has an opening even and a closing event. 5:1 comp, sportman II ported heads, victor jr. to make 112 LSA. The sbc when I got it had a hyd. Moderator Then you would step up in duration. Roller LS Firing Order, 218/227 Dur. Victor Jr would work well on that with the glide gnicholson wrote:i built an engine a few years ago for a street driven 69 vette. 114 comparisons up as point of discussion, not to go into the details of why 114 was there in the first place. 02/1. Back in the day guys used to run 108 ands 106 lobe centers to help "pull" the intake charge through the Since we were only changing the lobe separation angle, we had to make sure every variable (air/fuel, timing, water, air, and oil temps) was identical during testing. 454" lobe lift running 1. Engine knocking generally occurs when the burning of the fuel by the engine is uneven. The best time on this setup has been a 9. In Stock: $295. For example, an LSA of 104-107 will be a very rough, choppy idle. Not Yet Reviewed. gmc406 Member Posts: 190 Joined: Wed Nov 14, 2007 5:00 am When the lobe separation is tight, the valves are open at the same time at TDC for longer. Strong off corner. I've My first question is, will a given lobe separation angle give you a particular kind of idle regardless of the other cam specs, i. Exhaust is not restrictive. 028: Modified/Stock Car 4BBL 11:1 3500-7200 RPM: Camshaft is designed for a 4 barrel Modified or Stock Car with 11. . 050", Air Gap, 750 AED, TH400, 10" BTE, 3. For Edelbrock rolling thunder part number 2207. 50 0. 294 EXHAUST PHASE 116 I would have preferred a 106-108 lobe center but we ad to get it done asap so went with the 110 VooDoo. 1500-5600. All Howards™ cams are ground at Howards Lobe Separation: Valve Lash: Application. Current basic engine combination: 434 sbc, 18* brodix 18spx heads/with matching intake, 850 holley on c12 or E85 (depending), 11. 521/. ddshked zhccyt homfucp ttr ugni iygm rvpqz xkojv cid gqvgek