Its going to a drag meet this Saturday, we'll see if she runs below 10.41 this time..

 

The true test of power will be in the trap speeds. I mean I just think that is the best way to test a cars power. Dynos can be so inconsistent IMO, and people look into them way to much.

 

10 hp more with 50 hp shot is just weird .

 

A GT35R is rated up to 600hp at the crank according to Garrett. It looks like you have maxed out the turbine wheel. A GT40R maybe what you need.

 

That does sound very strange indeed. What kind of head work has been done? Maybe the head is holding you back. What compression?

 

Using standard corrected the figure comes out to 632 WHP... the 608 earlier was uncorrected using sae.
Head's a 1st gen head running 8.5 compression...fully ported and running 1 mm oversized valves..
Still with nos, shouldn't it just run more??

 

i think with c16, the n20 doesn't really make dramatic difference.

 

Well I believe an AMS Evo made around 630whp and then around 660whp spraying. I think that was on a 2.3l stroker so maybe this is about right.

I would have the head flow tested and see whats going on. You never know.

 

 

Will go down this Saturday to check it out what times I;m doing first...

 

Anyone has experience using the Forced Performance T67 or FP3575? Wonder if that will make more for me??

 

try a larger a/r exhaust housing.

 

If you've read my first post, I have already done that, did nothing for hp, made the spool so bad that you get full boost close to 1000 rpm later...

 

But I forgot to add this, I've retarded 3 deg in timing on the 50 hp nos, is this too much? Should i just leave at no retard??

 

Your turbo is maxed out, time to swap to a bigger one.