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Dual pattern camshaft vs single pattern

WebOct 1, 2010 · Aurora CO. The main reason for dual patter cams as explained to me was the longer duration on the the exhaust side was to cover up the shortcomings of the head … WebMar 15, 2024 · 68Chevele said: I know for a fact years ago testing the CC 292H on my 358 SBC that was single pattern cam came up short vs my Elgin 1165 Dual pattern cam. Two tenths and 2.5 mph was the difference in favor of the Elgin cam. That same Elgin dual pattern cam has now gone high 10's in my car.

Single pattern vs. dual pattern camshafts Page 2 - Team Chevelle

WebOct 27, 2016 · A dual pattern camshaft has different profiles on the intake and exhaust lobes. This is a more complex design found on newer engines. The lobe profiles can be optimized to account for specific conditions. For example, an engine with a free-flowing intake might have some exhaust restriction. It will need more Lift and Duration on the … WebMar 14, 2024 · 4,511 Posts. #11 · Mar 14, 2024. I know for a fact years ago testing the CC 292H on my 358 SBC that was single pattern cam came up short vs my Elgin 1165 … tnt tax service belvidere il https://acausc.com

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WebSINGLE PATTERN SYMMETRICAL CAMS. When the camshaft is single pattern (intake and exhaust cam profiles are the same) and the opening and closing sides of the lobes are the same shape (symmetrical) it is a … WebAug 11, 2004 · Overlap makes power because of the scavenging effect it creates. With a dual pattern cam you can get more of this scavenging effect without increasing the size of the intake lobe. If your engine is scavenging fine at its natural RPM range with a single pattern cam then a dual pattern is probably wasting time. WebMay 27, 2009 · I got too ticked to read any further when a thread mentioned that cam companies started changing LSAs just to be able to market/sell more high-lift/big duration street cams. LSAs from 106 to 114 are readily available. I am trying to match a cam (either single or dual pattern) to my street only 355. Thanks!! pennfoods.com

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Dual pattern camshaft vs single pattern

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WebNov 20, 2002 · All engines and exhaust combos react differently to changes. The dual pattern cam would help if you have a weak exhaust port or muffled exhaust system. … WebFeb 19, 2005 · Generally speaking, dual pattern cams will have a little wider power band then the single pattern while the single pattern cam in some cases can make a hair more midrange power. Dual pattern cams do not over-scavenge or cause any problems with good flowing exhaust ports -- 75% E/I ratio is good for a basic dual pattern SBC cam …

Dual pattern camshaft vs single pattern

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WebOct 2, 2010 · One was the cam I went with which is their dual pattern Voodoo 262/268 hyd. flt. tap. cam in my sig. below. The other was a single pattern cam with the same intake duration. I think it had a 110 LSA instead of the 112 LSA that my cam has. I've read that the Vortec heads can use a little help on their exhaust side so I figured I'd go with the ... WebWhen it came time for the camshaft, the builder decided on a COMP Cams Xtreme Energy 282 dual pattern hydraulic roller with 230/236 degrees of duration a 0.050-inch tappet lift and 0.510/0.520-inch lift ground with a …

WebSep 6, 2024 · In my opinion (which ain't worth much) a dual pattern cam is to crutch a poor flowing cylinder head. You have a really good head, so I'd lean toward the single … WebSep 3, 2010 · Just want to point out that chevy runs dual pattern cams in their crate motors intended for street use. The ZZ454 has a 211/230 cam. That's about as extreme a dual-pattern that I've ever seen, and that's with good eddy oval port aluminum heads. I tend to believe in what The General does, so I'm sticking with dual-pattern cams for now.

WebDec 4, 2016 · the Comp 268 may be a lilttle rough in a 383, i had great luck with the Extreme energy 268. in a 440, idle was kinda choppy, but man it ran good with a six pack the dual patter cams make better vacuum signal for carburetors, and IMO is the only way to go. I dont even consider single patter cams any more. throttle response is better and the over … WebFeb 14, 2006 · 454C10 is spot on. Exact. There may be other factors involved, but in general a dual pattern cam is used where the exhaust/intake flow ratio is in need of …

WebOct 2, 2010 · One was the cam I went with which is their dual pattern Voodoo 262/268 hyd. flt. tap. cam in my sig. below. The other was a single pattern cam with the same intake …

WebJun 12, 2005 · looking at upgrading my cam from hydo to solid. Just wondering if a dual pattern cam would be better than a single. The cams i'm looking at are solid 238/248 .517 .536 112/106 or 235/235 .547 .547 110/106. I have rpm heads ( [email protected] intake/ [email protected] exhaust flow), run 100hp nitrous. Have read if your exhaust flow is 70% of … penn fly fishing comboWebOct 26, 2004 · The cam engineer that I worked with recommended dual pattern cams in order to get more duration on the exhaust side as a way to help the exhaust breathe. The results didn't seem to support that theory. ... But the tests were a little inconclusive so I'd like to explore the issue of dual pattern vs. single pattern some more. Or even try the idea ... tnt tax web siteWebOct 7, 2024 · Most camshaft today is dual pattern but is that the hot ticket in every engine? I have a single pattern SFT today and it work perfekt..... but I have not tried a duel pattern maybe a better choice? Engine is: 512 cu Tf 240 oftb 10:3 comp Single intake Headers 1 7/8 x3 Full 3" exhaust 4.10 with 28" tires Flash stall 4200 Weight is 3860 Thanks! tnt tax service reedsburg wi