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Differences with R33-34 engines

owned

By owned,
in Engines & Forced Induction

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JezR31 Mentor

JezR31

Posted
Posted

the R33 turbo has a steel compressor wheel

the r34 turbo has a plastic compressor wheel

they both have ceramic exhaust wheels

ive herd that some S2 R33 turbos have the plastic wheel aswell but im not sure.

but i think the plastic compressor wheel is better then the ceramic one from the R32s.

but i think alot of the gained power has been from the VVT. There's less lag aswell.

Laurence Mentor

Laurence

Posted
Posted

Well I guess it depends what limits rpm first, the valvetrain or the bits of metal swinging around underneath...

After hearing the Blitz R34 drifting car screaming on the (sounds like 8,000rpm+) limiter I am guessing that this is the difference.

Abo Bob Grand Master

Abo Bob

Posted
Posted

an RB26 has the same size bore and a longer stroke and revs higher than an RB25 so...

Well I know it probably doesn't mean much cos I don't know what the R33's rev like but at 7000rpm mine absolutely sings. Haven't tried taking it higher though.

QuickR33Melb Rising Star

QuickR33Melb

Posted
Posted

The turbos for the R33 and R34 bolt on exactly the same. I assume they have exact power comparisons. After my turbo blew I was looking at a rebuild but after alot of frigging around I just brought an R34 turbo yesterday and I get the car from the performance shop today. I will post in the next few days with any differences (if any) I notice with the new turbo and hopefully some dyno sheets to compare

Yotis Experienced

Yotis

Posted
Posted
Well I guess it depends what limits rpm first, the valvetrain or the bits of metal swinging around underneath...

After hearing the Blitz R34 drifting car screaming on the (sounds like 8,000rpm+) limiter I am guessing that this is the difference.

Hit the rev limiter on me GTT for a short time.. oops.. :| But friend of mine reckons its a very sweet sound.. :)

As to the original post.. not sure about the exact diff between the two turbos.. but was told that the standard R34 turbo can take 1bar normally no problem. Tho cant say I'm gamed to do it atm. :(

Yotis Experienced

Yotis

Posted
Posted

Hrmm.. 0.7 bar.. what does that read on the standard boost gauge? Think mine is running approx. that, on my boost gauge the needle goes over ~2/3mm after the indicater between the 0 and 1+ :) (On boost that is) The turbo seems fine, cause I usually drive with more than just a few squirts.. :(

Bass Junky Grand Master

Bass Junky

Posted
Posted

Ppls,

Skylineboy: Titanium wheels? Yes, F1 turbos used to have these. Obvious advantages, and obscene costs.

I've raised my boost upto the factory boost cut point on my R34 (a touch below of course) and and have had zero problems thus far (* frantically knocking on wood *).

I bounce off the rev limiter quite often. The factory tacho in the dash just isn't fast enough and first gear often sees me hit the limiter. oh well, that's what its there for!!

BASS OUT

  • 8 months later...
darkrams69 Enthusiast

darkrams69

Posted
Posted
the R33 turbo has a steel compressor wheel

the r34 turbo has a plastic compressor wheel

they both have ceramic exhaust wheels

ive herd that some S2 R33 turbos have the plastic wheel aswell but im not sure.

The S2 R33 GTS25t type-m has a turbo charger made by hitachi, and it's had a ceramic compressor wheel.

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