Effects Of A Limiter At 5000Rpm

[GH05T]

Ok so the hardware is

R32 gts-t rb20det manual

1 bar boost set by a bleed vale

Trust TD05

Front mount

Gtr injectors/ coilpacks

Brand new Bosch 040

Nistune/ z32 afm

Full exhaust

Screamer pipe

Ok so the symptoms

I get boost at 3000-4000 1bar then at 5000rpm my revs stop rising and I get a sound like limiter bouncing.

I have recently replaced a diff fuel pump and fixed shit vacume lines, I still get a bit of a dodgey idle don't know I it's related.

I have been told the Nistune is tuned for 1 bar but it's what I suspect first, second is my coil packs?

Where should I start?

[DVS JEZ]

U really need to get the tune checked. Never trust a 2nd hand ecu tune

[Bsa]

Get the car on a dyno so it can be checked before wasting money

[51NNA]

Boost cut i reckon and defently put it on a dyno! what would you rather? 500$ tune or 1500$ engine swap?

Edited April 13, 2012 by 51NNA

[GH05T]

The ecu was tune for the car but I didnt do it do I recon ur right. Sounds like a tune problem?

[Bsa]

You will be able to tell if anything is wrong if you do

[GTSBoy]

Well, not boost cut. It's called TP cut, but depending on who tuned it / how it was tuned, you could be reaching high enough loads to clip whatever TP cut setting was left in there. Some tuners set the TP limit to max (all 255s in the table) which leaves no safety, but never clips, and some leave it at a TP setting just above the highest TP seen during tuning. If your engine is making hgher TP than the engine it was tuned on, you'll hit the limit.