Boost Cut?

[meet07]

Ok im sure that im going to get flamed but I cant seem to get a positive answer no where. Everytime my car creeps around 11psi she cuts out. I have my boost controller set to about 10psi and when the temp drops, of coarse she spikes a lil. Now I always her that you not suppose to boost the turbo no higher than 12lbs but no one really says if there is something in the ecu that doesnt like 12+ pounds of boost.

Is there boost cut on the factory comp???

I have RB25det

-greddy intake knockoff

-rfl bov

-3 inch cat delete all the way back

-fmic

-2.5 piping with a q45 tb

[Ultimategtr]

No. R33 ecus cant sense boost. I believe the 32's can.

How do you mean cuts out? what do you feel/hear?

[maximajim]

Probably your plugs/coil packs..

[Pal]

cant sense boost but can sense airflow, if you get to much air flow the computer will change timing and theres your boost cut (as such). are you running any after market computer or piggy back. this will help if not

Edited January 26, 2009 by Pal

[meet07]

Im running the factory computer. I have the 1st blue screen apexi afc and under the sensor check it read 4.6** volts when she started to cut out. That was the top row of numbers.

When it cuts it pretty much sounds like 2 stepping without the huge flames in the back. Almost what the rev limiter sounds like.

im running all t-bolt clamps except for the one 90 degree coupler that comes the stock intercooler. Im running the 2 clamps that came with it.

I hope its not the plugs or coil packs. I got the engine with like 98 kms. The plugs are brand new ngk iridiums. Ive been runing the car for about 2-3 months now.

[meet07]

I downloaded the trial version of nistune tonight and noticed that the stock GTS-t maf maxes out at 300hp. Im assuming thats motor hp and not whp. If that is the case do you think that my stock maf is maxed?? I noticed at the top of 4th gear the signal from the maf was reading 5.11. I mean this only happens when it gets around 30 degrees or lower. Thats when the boost spikes about a lbs or 2.

I have a q45 maf laying around. maybe that will solve the issue.