BOOSTED CAMS???

KidCapri50

New Member
Sep 8, 2005
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Sorry did not have time to search, but I have a procharged GT with stock bottom end and need to know what is recommended for cams , valve springs and retainers as far as boost goes. What company and/or specs.:D Any info is great.
 
I picked up 86rwhp from my S292 cams, and Lt's with no other changes. I was having trouble with it breaking up a little bit on top. That's because of a bad ground on my KB BAP that I finally found and fixed. The tuner said if it wasn't for that I would have seen 15 more. I just dropped them in with the AFM cam tool, and I'm still using the stock valve springs.
 
cam swap

When you say you just dropped them in.....How long a project was it and do you have a sweet lope at idle? I'm looking for a nice bit of lope sound at idle but don't want to sacrifice too much idle quality or vacuum on my 99 auto vert. When I put the x303s in my 89 auto vert, the sound was awesome but I had to give it a second or 2 before I backed out of the driveway because it felt like the power brakes were a bit slow to pressure up I guess maybe the combination of the cams and underdrive pulleys was a bit over the top for the power accessories?
 
When you say you just dropped them in.....How long a project was it and do you have a sweet lope at idle? I'm looking for a nice bit of lope sound at idle but don't want to sacrifice too much idle quality or vacuum on my 99 auto vert. When I put the x303s in my 89 auto vert, the sound was awesome but I had to give it a second or 2 before I backed out of the driveway because it felt like the power brakes were a bit slow to pressure up I guess maybe the combination of the cams and underdrive pulleys was a bit over the top for the power accessories?

I probably had 6-7 total hours in it. They only have a 531 lift but an advertised duration of 292 but is actually around 242 at .050 lift.


Heres a vid it wasn't quit warmed up, so the idle was little higher than normal.

View attachment 391717
 
I also have the HP 292S in my car with stock valve springs. With the cams and a retune with from 460rwhp to 530rwhp. The car pulls the whole way to redline. The only thing is you'll lose some low end grunt with the cams.