Guest

i just put a hot cam and 1.6rr in my 87, should be done this weekend, just wondering what others have been shifting it at to get max power? ive heard 6k is a good shift point but i wanna see what people are actually doing..........thx........

silvvette

I wish I had those problems... I have to wait till September/October to do my heads, HOT cam, and MiniRam.

PS.
Which heads are U running?

Guest

the long block is compl stock with stock 87 heads, i used the LT4 spring upgrade kit, i also will be replacing the stock tpi with high flow base,runners,ported plenum, and 52mm T.B.................

BIG JIM 54

I have a CompCam 501-8 (.488in-.495ex.) cam in my '87. It added a little rpm but most of the gain was bottom end and mid-range. At least that's the way it works until I do some plenum, runner and base manifold upgrades. The stock system is just barely adequate for the stock cam. IMO, you will need more air and at least #30 injectors to notice a big top-end change. That's my next step.

BIG JIM

War Machine

I decided to do the TPI port mod instead of going with a SR or MR. If that could get me to 5000 I'd be happy. Any more and I'll be thouroughly satisfied! :D

96GS#007

IMO, I think you'll need to jump to a SuperRam or a TPIS Mini-Ram. The LT4 HOT Cam peaks around 5900 or 6000 rpm. With high flow runners, etc your engine will likely be out of breath by then.

Jim Mason
'96 Grand Sport #007