nrchia

Hi everyone,

I'm Nick and have been a pretty heavy lurker of this forum for about a decade. I got my car tuned about 4 years ago and was very disappointed with the outcome. my current setup is a t3/t04e 50 trim .63ar stage 3 wheel and I'm running the jgs log manifold and 2.5 inch jgs downpipe. when i got the car tuned my tuner said he was running into detonation issues and could not raise the boost past 12psi. the attached graphs also show a dip in the midrange. The tuner said that it may be an issue with the apexi NOIR exhaust causing too much restriction because of the giant mufflers. he was also concerned about the 2.5 inch downpipe which the wastegate is recirculated into. Im just wondering if any of you have seen anything like this before with the Ka24 and what my next steps should be before I dish out another $4-500 for a tune.

Relevant Mods:
JGS log manifold
turbonetics t3/t04e 50trim .63A/R stage 3
2.5 inch jgs "uppipe?"
isr downpipe
apexi Noir exhaust
tial 38mm wastegate
megasquirt pnp2
stage 3+ spec clutch
stock cams
front mount intercooler
built bottom end
850cc sidefeed injectors
walbro 255
93 octane