Well i hit up the dyno tonight for a tune.. what a waste of $$$. Hit about 340whp @ 15psi spiking...
Some runs would be a nice perfect curve.. then the next run it would spike to 17 with it set at 12psi.. it was all over the place sometimes!!!We had to stop tuning it because it was just all over the place with the spikes.. especially when it higher rpms and when vtec kicked in...
Any suggestions would be great.. im really thinking its my manifold

Oh yes and i was running Vp c16 gas

4 puck kevlar clutch
BLITZ BOV
Blitz SBC i-D boost controller

Intercooler
26" x 12" x 3"

Turbo
Garrett t3/t04e 60 trim w/ .63 a/r

Drag turbo manifold
tiAl 38 mm wastegate

3" exhaust with no cat
walbro 255 fuel pump

b16a2 81.5mm
Stock sleeves
JE 9.0:1 pistons
ITR valvetrain
eagle rods
all new bearings gaskets
ITR tranny w/ lsd
GM 3 bar map sensor

 

I'm positive it's your manifold. The drag manifold has poor wastegate placement (on one runner as oppose to all four runners)

 

I'm going to agree with you and say it's the manifold. I have a Drag manifold as well, and I have boost creep to 17psi with my boost controller set at 15psi. Try and find a manifold that pulls off all of the runners (Blox or InlinePro) instead of just one runner.

 

yah i think im going to replace the manifold.... and if its still doing it then i know its the wastegate...
im just really pissed off.. waste of 600 bucks at the dyno.. oh well at least im all tuned before boost hits lol

 

we did a compression test tonight..
weird results
spark plug #1 was cover in oil when i first pulled it..
and it tested 120
and then the other 3 cyls. 90

.. then wetn back to cly #1.... 120 again

tehn did ti again.. 90
tried a few more times.. stayed at 90
let it run for a while.. pulled plugs
no oil on it either now..
WTF

 

i have a drag manifold and, I spike all the time as well. Time to upgrade to an equal length

 

It's your manifold just like people are saying. I just got rid of mine....it wouldn't spike, but it would creep. That manifold is quite annoying.

 

would a rip or soemthing in the wastegate cause it ???