Problem With My 33 Gtst

[skylinesandman]

i have recently bought a r33 gtst series 1.5

im brand new to owning a skyline and have never driven turbos before

i feel i have an issue with the cars performance however

it seems to lack power and a bit of it on the dyno it only put out 175.9rwhp

mods are front mount k&n pod exhaust n cold air intake

it has relitively new splitfire coil packs i recently purchased a turbosmart b/c

however when i hook it up it starts to boost normal and then dies as if the ecu (standard) is cuttin the fuel or spark

even when its turned all the way off so it has been removed

however the car still seems to be over fueling or watever

i have changed plugs, fuel filtet, cleaned a/f a/f hotwire tried a diff ecu still standard reset original ecu

and i removed stock 2 stage boost cause when stage 2 kicked it in it done nothin

any ideas would be greatly appreciated

sandman

[skylinesandman]

also i was lookin at groundin out the wire to get high boost all the time

but the wires to my swithch are blue wit a stripe and a green wire

any ideas

[PM-R33]

Just so I understand what you are saying. So the car runs fine when the boost tap is removed from the car? However dies at higher RPM with the boost tap installed?

[skylinesandman]

it doesnt even half to be at a high rpm it dies at about half throttle

and when its not in if im drivin in fifth at half throttle doinn 100kph it does the same thing

and from time to time feels like the power is surging

[mad082]

what boost are you trying to run? do you have an aftermarket gauge to see what boost you are running? remember that the stock gauge doesn't read in psi and isn't that accurate.

my guess is that you are trying to run too much boost and the ecu is cutting the power. even with the boost controller wound all the way down this is probably still the problem. first thing to do would be to get a gauge to see what the boost is doing.

[skylinesandman]

yeah alread got boost gauge it was runnin 12 and turned down it was runnin 5

[Vl3lt]

Hey pal do me a favour and check under the bonet... You may have a china motor?

[skylinesandman]

hahaha laugh at sackary i beleive ya fully sick vl

with hommus injection has a rb30 ( skyline ) motor in it

[Vl3lt]

Says holden on the rocket cover man! Stupid ranking says that my motor is a boat anchor???? (rb20)

Edited July 2, 2011 by Vl3lt

[skylinesandman]

Says holden on the rocket cover man! Stupid ranking says that my motor is a boat anchor???? (rb20)

hahaha its upgraded ya bro lol

i can get ya one that says nissan

[Vl3lt]

I dont need that chinese rubish

[ARTZ]

I dont need that chinese rubish

[skylinesandman]

^^^ hahahaha u must know him lol

[ARTZ]

Nah but I did see him licking windows oneday..

[Vl3lt]

I still reckon its spark related if its still doin the same thing when u took me for a drive. Spark is deffo braking down, thats probs why it runs so shite when u try and put more boost in it. My vl was doin the same thing when i first turbod it, changed the leads and spark plugs and it fixed it. I thought u had fixed the problem?

Edited July 3, 2011 by Vl3lt

[skylinesandman]

leads?? its got pretty much brand new splitfires coilpacks and new plugs

im still thinkin computer

[GankTank]

Intercooler piping may be poped off a bit?

[skylinesandman]

im guessin im just goin to have to bite the bullet and pull

the f*ka apart

sad face

[chubs]

might seem odd. but was the afm plugged in? if not this would cause overfuelling. maybe faulty afm?

[skylinesandman]

na turns out the ecu was rooted puta nistune in and fixed the problem