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R34 G T T thresholds.

blukie

By blukie,
in Engines & Forced Induction

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blukie Enthusiast

blukie

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I'm considering upgrading my R33 GTS T sedan to an R34 G TT sedan. Problem is I'm worried I won't be as satisfied with the R34. I have not seen an R34 sedan in the flesh yet but I'm planning to find one somewhere in Sydney over the next 2 weeks. Couple of questions for U out there.

Does an R34 have more potential than a R33 with basic mods ???

(Exhaust, pod filter and partition, increased boost).

Does the R34 have a better turbo ??? What is the safe limit in terms of psi U can push the turbo on a R34 (With a fuel cut defender installed) ????

Is there a kit available so you can put a 200SX 6 speed behind a RB25DET R34 ?????

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ed Grand Master

ed

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Keep in mind the 34 will be heavier than a 33.

34 would have a fresher motor, has NEO...how much potential in this case depends on how deep your pockets are.

34 has a poly-nylon (plastic?) compressor instead of ceramic that the 33 has. I think general concensus from 34 owners on a safe level would be 12psi...although 1bar on street use is ok. Track work you'd be best to dial it to more like 8psi.

Why would you want to put a 6speed from the 200 up to the RB?

They are fragile boxes when it comes to taking power. Stick with the stock box until you break it.

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GTS-t VSPEC Grand Master

GTS-t VSPEC

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In stock form the GT-T has been running quite fast at the drags, they seem to have a good amount of power. Potential on these haven't really been tested too much here in Oz, but I know of a few people starting to use them for track-use, so they must have potential.

Wouldn't bother with the 200SX box, and keep boost to about 12psi, it is inefficient above this and will actually reduce power, we tested it on a dyno.

See'ya:burnout:

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ed Grand Master

ed

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Originally posted by GTS-t VSPEC

Wouldn't bother with the 200SX box, and keep boost to about 12psi, it is inefficient above this and will actually reduce power, we tested it on a dyno.

See'ya:burnout:

so you reckon past 12 is not worth the bother nor the risk?

was this on stock cooler?

Cheers.

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GTS-t VSPEC Grand Master

GTS-t VSPEC

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Nah, this was with aftermarket cooler. Most turbos have a best boost that they produce effieciently. If you push past this point then they make more boost but they also produce lots of heat, which means that the power ends up being reduced. 12psi is enough, the car is getting low 13's on this setup, without any mods other than exhaust and cooler, no bad for a stocker.

See'ya:burnout:

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GTS-t VSPEC Grand Master

GTS-t VSPEC

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ed,

Yeah it is possible, this guy only has 208rwhp, which is just a bit more than stock, but it is just the right amount to get to the floor without lighting the rear tyres.

Launches are all important, improved my time by .5sec just by learning to do it properly, still more room for improvement.

See'ya:burnout:

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Guest INASNT

Guest INASNT

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wha terminal speed was he getting with 208rwhp?

what additional stuff does the NEO engine have anyway?

when u pull the cover off it looks just like thr r33 2.5!

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ed Grand Master

ed

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wow, I gotta get new tyres. I got 235 Ziex and they S*&K...

All I gotta do is just put my foot down and the back squirms in the dry with TCS ON! :P

Might see if I can get some 255 FM901's on there :P

Yah, I'm still learning how to launch :P

I found 2,000RPM was the best for launching with my current tyres! :uh-huh:

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NismoR34 Grand Master

NismoR34

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Originally posted by ed

wow, I gotta get new tyres. I got 235 Ziex and they S*&K...

All I gotta do is just put my foot down and the back squirms in the dry with TCS ON! :D

Might see if I can get some 255 FM901's on there :D

Yah, I'm still learning how to launch :)

I found 2,000RPM was the best for launching with my current tyres! :uh-huh:

you sure the tcs is working ed? i dont get any wheelspin until i switch it off! Not even at 4000rpm.

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NismoR34 Grand Master

NismoR34

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Originally posted by ed

hey got any pics of it?

Many GT-T's being brought in?

there are a few coming in to melb. i know of a nicely modded white one thats for sale soon. It has the a/m bonnet with air ducts, fmic, rear GT wing, lowered and maybe wheels etc...i think it will be going for around 37k but this is a 2 door - sorry blukie

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Guest INASNT

Guest INASNT

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hey franks who tuned your power fc?

your af ratio could be set alot better than that.

Heres my dyno run from last week.

My mods are Full zorst + custom dump pipe, s-afc, K/N Pod HKS FMIC + Piping.

Green is with 0.9 bar boost

Red is with 0.5 bar boost and this was on a 28 degree day at 12.20 pm

attachment.php?s=&postid=127544

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