Thread: N/A L67 with XP cam

There was a guy a few years ago that dyno'd a l67 with a stock cam and na top end. I'm thinking it made somewhere around 130-140 whp. I really doubt your cam will add too much more. I would still think a stock na car would beat you.

low comp no boost was 143whp, wanna add 25whp for that cam 168whp, gt would still smack you around you have zero grunt to give

Would it be similar to driving my car without the sc belt?

It'll be interesting to see!if you have gtp gear ratio(2.96?) That isn't going to help..
Hopefully going to take my car to the track this year, my 3.69 gears are figured out just waiting for my retune from overkill with the adjusted shift points (won't shift out of 2nd at wot..just pegs the RPM limiter and stays there lol)

Originally Posted by SgtMarshal

maybe I can raise the timing enough to make my car faster. I'll take it to the 1/8th mile track next month and see what it does.

I think I ran 37 degrees of timing WOT on my Lumina .

Are you on stock NA or S/C timing? That will make a difference.

I love the VS l32 sans belt Tq in the 04 gtp clone.

then I tuned it for 87 with the belt.

I would dump 400 shot of direct port into an NA topend L67/32 shorty.

try to find an SSm90 lim to build a massive common plenum with the shortest oem ports

progressively control that **** and id bet leaving cleanly with sweet 60's and ripping third gear a new one., only cost you a bottle when you wanna go fast, rest of the time its 87 octane daily driver

Originally Posted by SgtMarshal

I was on supercharged timing until I realized that I was, it's on na timing now. I've been upping the timing advance a little at a time, I think I'm at 31 wot now. Still no hint of kr.

Is the ssm90 normally a na or sc manifold, having a hard time wrapping my head around what you said

If you put a s/c on it you'll want to lower the timing back to 15-18.

I can't remember what the SSM90 kit is.