SR cutout at 1bar

[khoadogg]

I'm having a huge problem. Car ran fine at 10-11psi. I tried going to 1 bar and now anything after 11psi the car just loses power and doesn't respond until the RPM's drop back down.

Mods:
blacktop
stock turbo
equal mani
stock injectors
sohc ka24e maf
fmic
fuel pump
dp
exhaust
OEM ecu

Could it be the MAF wiring? The oem ecu? I have a blitz tuned ECU i can throw in and try.

[SoguRacing]

could be exceeding the capabilities of the MAF...could be. try your other ECU

[Silverbullet]

booost leak?

[nicku]

i had almost the same problem before. expect mine was cutting off at 5k rpm, as the car gets warmer and warmer, the rpm it cuts is lower and lower. And when it cuts, i have to wait until the rpm drops down around 2k, then everything back to normal again. I found out my problem was the stock intake tube coil spring was out of place, so the intake tube didnt really have any support. when the vaccum is strong enough, it sucked the tube flat, and allowed no air flow through. now i changed to a aluminum pipe. everything is back to normal.

[khoadogg]

damn, it might be the intake tube. It feels soft and flat. I'm going to replace it with a metal intake arm. Thanks everyone!

[nicku]

cool....let me know what's going on

[!Zar!]

Well, you are maxing out the stock injectors at 1 bar.

Not to mention, the stock wastegate is freaking out.

Those are my guesses.

[DJ_Sunrise]

Hahaha. Yea when I replaced the OEM soft rubber intake it made a world of a difference. It would literally suck itself shut.


-Bart