Need help with cam selection, please!
Thread Starter
Teching In
Joined: Jan 2021
Posts: 6
Likes: 0
Need help with cam selection, please! Hi, I am looking for some help with my 3rd try at selecting a Cam for my build, the car will be 95% of the time street driven, low load, low speed drivability are very important to me, any and all help is much appreciated, thanks.
The build started with a 6 litre LY6 that got bored 20 over and stroked, I don’t know the exact compression ratio but I believe it’s around 11:1.
It uses an LS3 intake 92mm TB and some slightly better than stock LS3 type exhaust manifolds with dual 3” the rest of the way. T56 trans and sits at around 3000 lbs. The first cam I used was a Summit Stage 4 LS3 cam (234/248, lsa 114+3, 0.625/0.605) and it was terrible for what I was looking for. The second and current cam in the car is a BTR LS3 Stage 1 (221/228, lsa 112+2, 0.613/0.605) and even though a big improvement still not working the way I’d like in the drivability department.
I would have liked to use long tube headers, but there is just not enough room to fit any unfortunately and I think this might be the reason for my battle with reversion even on this Stage 1 cam that most people seem to consider mild.
My previous failed attempts to pick something suitable (even though I followed advise from vendors) have prompted me to ask the question here.
A couple of options I am considering:
TSP 220R (220/220, 600/600, lsa 112)
TSP 224R (224/224, 600/600, lsa 114)
Cam Motion LS3 Stage 3 (220/230, 595/595, lsa 117+4)
Thanks again for your help.
The build started with a 6 litre LY6 that got bored 20 over and stroked, I don’t know the exact compression ratio but I believe it’s around 11:1.
It uses an LS3 intake 92mm TB and some slightly better than stock LS3 type exhaust manifolds with dual 3” the rest of the way. T56 trans and sits at around 3000 lbs. The first cam I used was a Summit Stage 4 LS3 cam (234/248, lsa 114+3, 0.625/0.605) and it was terrible for what I was looking for. The second and current cam in the car is a BTR LS3 Stage 1 (221/228, lsa 112+2, 0.613/0.605) and even though a big improvement still not working the way I’d like in the drivability department.
I would have liked to use long tube headers, but there is just not enough room to fit any unfortunately and I think this might be the reason for my battle with reversion even on this Stage 1 cam that most people seem to consider mild.
My previous failed attempts to pick something suitable (even though I followed advise from vendors) have prompted me to ask the question here.
A couple of options I am considering:
TSP 220R (220/220, 600/600, lsa 112)
TSP 224R (224/224, 600/600, lsa 114)
Cam Motion LS3 Stage 3 (220/230, 595/595, lsa 117+4)
Thanks again for your help.
Last edited by corrversion; Jul 10, 2023 at 11:23 PM.
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
For what you want with stock manifolds, get a cam with more exhaust duration to help scavenge on the exhaust stroke.
You'll notice even stock cams have longer exhaust duration.
A good cam for you would be something like the Cam Motion LS3 Stage 2 (216/226,116+3, .553/.553)
It would be a smooth cam for what you want. The Stage 3 might still be rougher than you like.
You'll notice even stock cams have longer exhaust duration.
A good cam for you would be something like the Cam Motion LS3 Stage 2 (216/226,116+3, .553/.553)
It would be a smooth cam for what you want. The Stage 3 might still be rougher than you like.
TECH Resident
Joined: Jun 2011
Posts: 936
Likes: 472
I have to go with the others. In terms of driveability, it shouldn't be an issue with your current cam in that setup. It's likely within the tuning. Get that sorted first.
And then if you still want a new camshaft for sake of power, as GAtsma mentioned, get something custom made with a larger split to help the exhaust side. Maybe something along the lines of 220/234 115+5. Cammotion should be able to dial in something for your exact setup.
And then if you still want a new camshaft for sake of power, as GAtsma mentioned, get something custom made with a larger split to help the exhaust side. Maybe something along the lines of 220/234 115+5. Cammotion should be able to dial in something for your exact setup.
Trending Topics
Echo again the current cam should be easily tunable.
In terms of the "right" cam for a stroker that camshaft you have now is very small, but for low rpm performance I'd argue it is not a bad pick.
For more all around power with the stroker for high rpm you could do the stealthy stroker cam from cammotion, but this will trade low end for top end.
https://cammotion.com/camshafts/stea...ectangle-port/
In terms of the "right" cam for a stroker that camshaft you have now is very small, but for low rpm performance I'd argue it is not a bad pick.
For more all around power with the stroker for high rpm you could do the stealthy stroker cam from cammotion, but this will trade low end for top end.
https://cammotion.com/camshafts/stea...ectangle-port/
Last edited by spanks13; Jul 11, 2023 at 02:59 PM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
I think those guys are few and far between. May have to have it remote tuned. Get ahold of Josiah that owns FDF Raceshop in Trenton Ontario. He has a few drift cars that run Link and he had to have someone remote tune his.