Ls1 engine build.
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Teching In
Joined: Jan 2017
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Ls1 engine build. Im building a ls1 engine for a autocross guy. its a 99 corvette. The build will consist of a callies rotating assembly. shooting for 11.0 to 1 compression with a 65 cc 243 head. My question is about cam choice. The stock cam is wiped out so he needs a new one. he needs to keep the idle like stock but wants to make more power. Are there any proven cams for that combination that will idle like stock?
TECH Fanatic
Joined: Aug 2009
Posts: 1,845
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From: Coast of San Mateo County Between Pacifica & HMB
Negative Overlap is your friend. I would talk with Cam Motion.
i would look at something like ~222*/228* 116*+4* .600"/.585"
-6,-4* Overlap max. Should be worth 20-25+ over stock Z06 Cam
Like G said raise Idle ~200 RPM.
Just my .02
good luck
i would look at something like ~222*/228* 116*+4* .600"/.585"
-6,-4* Overlap max. Should be worth 20-25+ over stock Z06 Cam
Like G said raise Idle ~200 RPM.
Just my .02
good luck
LS1Tech Sponsor
Joined: Jan 2008
Posts: 2,241
Likes: 1,535
From: Ohio, Georgia, Nevada, Texas
Our Sum-8719 Pro LS Stage 1 Truck Cam would be a wicked sleeper and torque producer in this application. 209/217 112 + 1 .550/.550. Works with Ls6 springs or 918 singles. Let us know if you have further questions. We could also have a dedicated custom ground for you by Comp or Cam Motion perhaps If you wanted to play some games with the idle and powerband.
Last edited by Summitracing; Mar 13, 2019 at 09:44 PM.
