Power gains of ls9/vr1 cam in a 4.8? Turbo?
#1
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Sep 2010
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
Power gains of ls9/vr1 cam in a 4.8? Turbo?
Trying to decide if the power gains are worth the hassle of cam and spring installation in my turbo 4.8 using the ls9 camshaft. Especially when turbo cams are only a couple hundred bucks more. I did some searching but found mostly speculation or only results using this cam in the larger ci engines.
Does anyone have an idea what kind Of performance to expect by using a ls9 cam with springs in a stock n/a 4.8? What about a stock 4.8 on 14ish psi from turbo?
Does anyone have an idea what kind Of performance to expect by using a ls9 cam with springs in a stock n/a 4.8? What about a stock 4.8 on 14ish psi from turbo?
#2
TECH Enthusiast
Join Date: Nov 2004
Location: Tampa FL
Posts: 714
Likes: 0
Received 0 Likes
on
0 Posts
Trying to decide if the power gains are worth the hassle of cam and spring installation in my turbo 4.8 using the ls9 camshaft. Especially when turbo cams are only a couple hundred bucks more. I did some searching but found mostly speculation or only results using this cam in the larger ci engines.
Does anyone have an idea what kind Of performance to expect by using a ls9 cam with springs in a stock n/a 4.8? What about a stock 4.8 on 14ish psi from turbo?
Does anyone have an idea what kind Of performance to expect by using a ls9 cam with springs in a stock n/a 4.8? What about a stock 4.8 on 14ish psi from turbo?
#4
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Sep 2010
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
I swapped in an LS9 cam and lost power over the stock cam. Same tune AFR was richer across the board all the way to 6000 rpm on the same boost. I was told by some other folks that the 230 exhaust duration was hurting the performance. That and the super wide LSA is not right for such a short stroke/CI engine.
#5
FormerVendor
iTrader: (15)
I swapped in an LS9 cam and lost power over the stock cam. Same tune AFR was richer across the board all the way to 6000 rpm on the same boost. I was told by some other folks that the 230 exhaust duration was hurting the performance. That and the super wide LSA is not right for such a short stroke/CI engine.