Hey guys,

Wondering if this was a usual acceptable number for a z6, wiseco 75,5mm, eagle combination with a 2860rs, wg44 .72 a/r. IAT of 77 degrees. On 91 pump

Thanks

 

What were you revving to?

I made 273/252 @ 19-20 lbs., 50 trim .48 ar turbo, Vitara pistons though.

 

Anything under 3 at 15psi plus is unacceptable

 

That's pretty low assuming you're revving past 6k. You should be making an absolute minimum of 260/200 at 16psi on a bad day. Unless you're at a higher altitude then 240 might be acceptable.
One of the following is crap, in order of likelihood:
Inefficient turbo, bad tune, intake flow restriction, exhaust restriction, incorrect dyno reading, incorrect boost reading, excessive drag, compression loss, or witchcraft.
Post your dyno graph.

 

Comparing dyno numbers is useless. My car put down 260 on a mainline and 297 on a dynojet. Track times are a way better way of seeing if your car is doing what it should.

 

Are those number corrected or observed?

 

True. Trap speed / weight would tell alot more.

 

...but observing a graph is not useless. if you post the graph, we may be able to identify if there's a problem with your setup causing the loss of power.

 

I agree with that. You can have a 18% variance in HP from one type of dyno to another is all I was saying.