Boost Cut At ~5Psi - R34 Gtt

[Everlong-S13]

Ok guys it's been sorted, I simply bypassed the valve near the throttle body completely and it has fixed the vacuum leak problem. The after-market gauge now shows a boost approximately 10-11psi and I think this should be OK. I believe the boost cut from the stock ECU should take care of spikes.

[Hanaldo]

ER34 isn't 7psi. The R34 runs more boost than an R33 which runs 7.5psi and the stock tables don't run into R&R until at least 9psi. If the stock gauge is reading 0.75 kg/cm^2 then that is a touch over 10psi. This is likely the start of R&R - which from what I read is more aggressive than the R33 R&R.

Mine definitely ran 5-7psi when it was stock. Confirmed by my 2 boost gauges, my boost controller, and my tuners boost gauge.

I've never heard of R34's running more boost than 33's from factory? I thought they ran the same? Just have a bigger turbo so they flow more.

[Everlong-S13]

My boost cut didn't jump in until around the 13-14 psi level.

[jamie curran]

im having the exact same issue

Edited June 4, 2011 by jamie curran

[paulr33]

no, your issue is stupidity and confusing things

there is "common issue" at 5psi

go back to your other thread and dont troll others