Is My Wastegate Opening Or Is My Car Stuffed :s

[R33_Rob]

Hi

im pretty new to the whole turbo world.

I have a Series 2 R33 GTST with pod filter, catback exhaust and turbotech boost controller.

I am running 12 psi and decided to perform a modification that was feature in the latest High Performance Imports magazine.

The modification involved cutting out 1 inch of the rubber intake pipe and installing a metal pipe in place of the rubber that was removed. This was done to ensure the rubber pipe stays all the way open during boost. According to HPI under high boost the rubber intake pipe can occassionally suck in on its self during high amounts of boost resulting in lost power.

Anyway.

As i am driving and hold my foot flat to the floor i hit 13psi and the car just backs off all of a sudden it scares the shit outta me.

What have i done??

Is this the wastegate opening??

I know the boost im running isnt safe, but if only hit 13psi twice and the car has lost all power both times. At the moment im trying to drive it on vacuum until my mechanic down tunes the boost to 10psi.

Does anyone know what i have done wrong??

Thanks

[stolen_s15]

You are hitting rich and retard. The ECU richens the fuel mix and retards the timing, so you dont damage the engine. Run 10psi, much safer.

Edited November 28, 2007 by stolen_s15

[R33_Rob]

awesome! thats good to know.

12psi will be safe once i get a front mount wont it?

[stolen_s15]

Yeah it will, but there is not much point running more than 10psi without a tune of some sort (power fc, e-manage, SAFC) as your car will be running mega rich anyway.

[R33_Rob]

Thanks for the fast responce. Looks like an SAFC and front mount are on my Christmas wishlist now

[TTT]

EDIT - beaten to it..

it's not about safe.

it's about airflow.

R33 and over 10psi of airflow on stock ecu = rich and retard which you will feel as a bad missfire/power loss/jerking type thing.

with the FMIC it will be worse.

the air will be cooler therefore more dense which will mean it will cut out at lower revs say about "4500rpm"

you need some sort of ecu controling thing.

Cheap = SAFC

expensive and better = aftermarket programable ECU (Power FC, MICROGUESS, WOLF, etc etc)

Edited November 28, 2007 by GTST

[(B1) MR_fanny]

i hit R&R the other day for the first time when i installed an tuned my ebc. freaks you out abit hey...ha i run mine on 11psi which i find safe.

[Guilt-Toy]

I like how HPI are putting modifications in their magazine that was documented by a user on this forum a fair while ago...

[R33_Rob]

i hit R&R the other day for the first time when i installed an tuned my ebc. freaks you out abit hey...ha i run mine on 11psi which i find safe.

yeah, it scared the absolute shit out of me.

I thought they didnt make SAFC's anymore?

might just need to get a second hand one if thats the case.

[R31Nismoid]

I like how HPI are putting modifications in their magazine that was documented by a user on this forum a fair while ago...

Its certainly not the first time its happened

[DRD-00F]

Someone is spying...

ANDREW! (Nuttshunglow)

[Guilt-Toy]

im hearing ya.. what a joke

Its certainly not the first time its happened

[joeyjoejoejuniorshabadoo]

considering there is metal reinforcing on the rb25 intake pipe as it is you'd have to be running a LOT of boost...

[stolen_s15]

considering there is metal reinforcing on the rb25 intake pipe as it is you'd have to be running a LOT of boost...

I have seen one do it with only 260rwkw, took ages trying to work it out on the road, but a good tuner shoudl diagnose ti pretty quick on a dyno.

Edited November 29, 2007 by stolen_s15

[Ionos]

I'd suspect the problem is also related to an overly restrictive air filter. It would take a LOT of boost to suck that pipe closed with no restriction on the intake.

[SevenAngryPenguins]

um there isn't any steel reinforcement in my rubber intake pipe...

is this mod worth worrying about if I'm only running 12psi???

[s13_Skyline_inside]

ive found that every s and r series turbo car has the reinforcement inside the intake pipr, its not a steel tube if that what your looking for, its just a spring that winds itself arount the intake pipe

[Simon-S14]

Mate of mine has a drift R32 2 door with a 25 in it and found a major power drop one night at a drift prac.... pulled into the pits and while free revving the engine the intake pipe was sucking closed.... they had a look at the pod air filter which was almost black it was that dirty... blew some compressed air through it and all was sweet again. only making 220 rwkw on 1.1 bar too so power is not so much a factor with the stock intake pipe

[SevenAngryPenguins]

hmmm maybe someone took mine out, it had a pod on it when i bought it, definitely nothing in there like a spring.

I might give the steel pipe insert a crack for something to do

[TTT]

I thought REV210 put this in the DIY section.

Did the article give any credit to where they got the "idea" from?