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Gtr Modification

lav

By lav,
in Victoria

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(OO)SKYLINE(OO) Grand Master

(OO)SKYLINE(OO)

Posted
Posted

Leigh,

You and Andrew probably have the OEM boost restricter removed, which inside the hose that goes to the Boost Solenoid.

Once removed you can run a "Safe" factory boost increase, as what I have heard and read about so far.

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scotty014 Veteran

scotty014

Posted
Posted

i hope r34 gtr turbos can run a bit more boost safer than the r33 and r32 gtr's because mine usually runs over 1bar, the highest it got to was 1.18 on the screen which was right on the edge of the screen, maximum it reads is 2.0. in psi i think its roughly 16-17psi.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Not really - they are just newer, doesnt mean they wont/cant fail in the same fashion especially considering you dont know what was going on before you got it.

too much heat = bye bye turbo.

could happen to near new turbos IMO

silva33 Mentor

silva33

Posted
Posted

I know everyone will say that it is way to much boost but I have never seen an R34 including mine run less boost than that. I bought mine with only a cat back and am in fact now running less boost with the computer and full exhaust. Factory mine ran the same and I know of a few other guys telling me the same, when mine was stock it used to hit 1.18 bar as well on occasion. Now with the wolf I have managed to run a perfectly steady .9 bar.

So done stress, the R34's just run more boost than the R33 and R34. In fact it may just be coincidence for me but I have never seen a 34 do anything but run minimum 1 bar.

scotty014 Veteran

scotty014

Posted
Posted
Not really - they are just newer, doesnt mean they wont/cant fail in the same fashion especially considering you dont know what was going on before you got it.

too much heat = bye bye turbo.

could happen to near new turbos IMO

yeah agreed, just need to save a little bit more and ill have enough for some new turbos :thumbsup:

I know everyone will say that it is way to much boost but I have never seen an R34 including mine run less boost than that. I bought mine with only a cat back and am in fact now running less boost with the computer and full exhaust. Factory mine ran the same and I know of a few other guys telling me the same, when mine was stock it used to hit 1.18 bar as well on occasion. Now with the wolf I have managed to run a perfectly steady .9 bar.

So done stress, the R34's just run more boost than the R33 and R34. In fact it may just be coincidence for me but I have never seen a 34 do anything but run minimum 1 bar.

ok thats good to hear that its not just mine then.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Geoff brought snowys old factory turbos - i think he got like 1,000kms out of them or something before they let go and took his motor with them (this is going back a few years now)

So they can indeed fail... It's just that most R34 GTR owners dont run them that high, for that long.

I think we will see more examples as time goes on of this occuring.

scotty014 Veteran

scotty014

Posted
Posted
Geoff brought snowys old factory turbos - i think he got like 1,000kms out of them or something before they let go and took his motor with them (this is going back a few years now)

So they can indeed fail... It's just that most R34 GTR owners dont run them that high, for that long.

I think we will see more examples as time goes on of this occuring.

well it makes sence they are getting old and nothing lasts forever.

Brandon Veteran

Brandon

Posted
Posted
Geoff brought snowys old factory turbos - i think he got like 1,000kms out of them or something before they let go and took his motor with them (this is going back a few years now)

So they can indeed fail... It's just that most R34 GTR owners dont run them that high, for that long.

I think we will see more examples as time goes on of this occuring.

+1. How long do you run that 1bar? If you're just driving on the street it wouldnt be that long would it? If you're doing mountain runs/track, the risk just increases. Its all about whether or not you wanna take the risk.

Nobody really say you cannot run 1bar but rather its not advisable to run 1 bar because the risk or probability of the turbo blowing up increases.

Brandon Veteran

Brandon

Posted
Posted
Mine runs 1-1.2 bar factory with no dramas but I need a tune.

Mate you've got a NUR (according to your profile/nick). They have N1 spec turbos like mine so you're not comparing apples with apple. I'm running mine at 1.15bar with no dramas too... -.-;

VSPECT Mentor

VSPECT

Posted
Posted
with my BNR34:

Mods

-full exhaust system

-cam gears

-power fc

-kn panel filter

everything else standard, 1st dyno tune from Race Pace 280awkw (30,000km) 4 years ago. Now with (120,000km) dyno tune from Race Pace it's now 250awkw.

Not to sound rude but how did Racepace dyno your car all wheel? They only have a rear wheel dyno...so they can only generate numbers with rwkw...did they ever have a 4 wheel dyno before?..

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
Not to sound rude but how did Racepace dyno your car all wheel? They only have a rear wheel dyno...so they can only generate numbers with rwkw...did they ever have a 4 wheel dyno before?..

aw/rw = same shit anyway.

UNR33L Grand Master

UNR33L

Posted
Posted

Trent has a rwd dyno, and when i asked him about it he said he can put a "GTR setting" on or something which puts 5% more stress on it or something to act like a AWD dyno when doing GTRs, something along those lines anyway he can probably explain it more hehe

GD2ILA Rising Star

GD2ILA

Posted
Posted
Not to sound rude but how did Racepace dyno your car all wheel? They only have a rear wheel dyno...so they can only generate numbers with rwkw...did they ever have a 4 wheel dyno before?..

oops my bad, so how does he dyno it than? removes front drive shaft?

VSPECT Mentor

VSPECT

Posted
Posted
oops my bad, so how does he dyno it than? removes front drive shaft?

umm...yes...well thats what they did to mine when they dynoed it...they only have a rear wheel dyno...well atm they do...not sure if they had a 4 wheel one when you got yours...

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