233/239 + Headers + ORY #s
Pacesetter LTs
ORY
TSP 233/239 .595/.603
Flowmaster
Check out the graph
http://video.ls1tech.com/viewimage.a...b-995101784a34
The numbers are pretty low for a m6 car. Was it tuned at wot and part throttle? maybe try a different dyno and see if its consistant.
Pacesetter LTs
ORY
TSP 233/239 .595/.603
Flowmaster
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Better tune, LS6 intake, lid, pulley, but mostly a better catback or a cutout. All of a sudden you'll be in the runnings with everyone else. Also, see if you can get some numbers from a different dyno since it sounds like this one gives low numbers (or better yet, take it to the track and see what it traps).
Do these mods and you'll gain 30-40rwhp I bet.
SLP Lid - SpeedInc
Free Ram Air
ASP Pulley - SpeedInc
Ported Stock TB - Speedinc
Cutout - Speedinc
NOS

if your tuner wants to keep it on the safe side, why doesn't he just cut back on timing instead of throwing a bunch of fuel at it???
just wondering.
and DITCH THE FLOWMASTER!!!
i'd go with a magnaflow cat-back. i believe SpeedInc sells them for $419.99
I think youre definitely low, Is it just me or does that graph peak waaay early for a 233/239???
somthings up! cut that flowmaster off and take the lid off try again lol
If you really want to bump that power, get yourself a FAST 90/NW90 setup or LS6 intake (if you don't already have it)
Better headers (ARH or Kooks)
Better Catback
A good lid/85mm MAF
And a well managed power tune.
And even thought this thread is WAY old, and the original poster hasn't even showed up since he posted, I'm going to post this anyway, because I already wrote it all out haha.


