13.4 second 1/4 for your 'stockish' R33. (A how to guide).

[giz01]

370hp! Slicks would be more benificial if you not already using them

[taylor]

so how much boost does the standard valve handle?

[4 Doorz]

read boosted's post above taylor

[95SKY]

im thinking of putting a after market BOV on my 33 its got a 3in exhaust and k&n pod filter apart from that stock does anyone think it will be a advantage or not by putting one on?

[Guest INASNT]

bov aint a performance mod!

[benm]

I'd be going... ex cam gear and lightened flywheel if it was me.

[95SKY]

i know it aint a perf mod i just dont wanna put one on and decrease the cars performance thats all.

[Jay95R33]

95Sky - the after market BOV will add zero performance to your car.

But if it vents to air it'll help you get a defect notice

Stick with the stock one, if you really get keen you can try the BOV mod that is posted on these forums - do a search and you'll find it.

J

[BOOSTD]

An aftermarket BOV will improve performance if the old one is limiting boost...

[falconsvo]

G'day guys,

Just wondering what the max output (kW) I can get out of my R33 GTST without opening up the engine. how much boost will the standard turbo and engine safely cope with using a front mount intercooler and 3 inch exhaust? I do like to drive hard.

[Guest MFX_R33]

The general thought on here is that you can get around 250rwkw safely without opening an RB25. With a thicker head gasket to lower compression you could probably extend this figure to around 290-300 (I have seen just over 300 from an R34 RB25, but I don't know how long it lasted).

Jeff.

[rev210]

Originally posted by taylor

how much boost can the standard bov take before it begins to leak?

40psi

[BOOSTD]

40psi:confused:

15psi is the max I have seen

[zanda]

Originally posted by falconsvo

G'day guys,

Just wondering what the max output (kW) I can get out of my R33 GTST without opening up the engine. how much boost will the standard turbo and engine safely cope with using a front mount intercooler and 3 inch exhaust? I do like to drive hard.

there appears to be a "rule of thumb" that 12 psi is the peak for standard intercooler, and 14 psi is the peak for fmic on standard gtst-t ceramic turbs, in order to run with any degree of safety before something goes bang.

that said, I am running 9 psi, and many others are running a lot less than the above quoted figures. Draw from that what you will.

the difference in rwkw between 12 and 14 from gt25t seems to be very little, although there is a significant increase in torque.

expect 250-300rwhp. I cbf working out what that is in rwkw.

also, find the search button cause these sorts of questions have been asked a bazillion times before.

[4 Doorz]

About that standard BOV mod - can anyone who has done it remember where the link was or explain basically what has to be done?

Thanks

4 doorz..

[Jay95R33]

4 dorrz, Here ya go

http://www.skylinesaustralia.com/forums/sh...=&threadid=9634

[riggaP]

Went to Heathcote today and shaved half a sec off my pb with 13.8312 @ 101.50mph 60ft 2.2039.

Mods since last time are 3" front/dump pipe, pineapples, bleed valve running 0.7bar (~10psi).

I was impressed

[NIZR34GTT]

Just finished reading the threads guys ,great stuff from some who really seem to know there stuff.

Just my bit on BOV I had a Turbo Smart Type 2 fitted to my R34 I could never seem to adjust it correctly and therefore the car ran like a dog.I have since removed it and gone back to the factory one and now the car runs ever so sweet.In fact it would be safe to say the car has never run so well.

[8thSIN]

on the subject about external bov's.. ( I have one and have been using them since my first turbo car) I have a few good friends with an R32 GTS-T and an R33 GTS-T. one has a blitz and the other has an HKS SQV Bov. Now I dunno if this is common with skyline's, but we have realised that their car's tend to have a habit of suddenly dying while driving normally! the car doesn't backfire, or run shit or anything.. just completely dies while driving.

is that a common issue for skyline's running a full atmo bov? cause the same thing happening to 2 guys in a row is sure as hell weird.

[Jay95R33]

8thSIN - it's possible that the suddenly dying bit is caused by the BOV. Venting BOV's will cause the car to stop/die when you go on boost to off boost at lowish RPM's.

An example would be if you were accelerating at low RPM with a bit of boost, then suddenly come off the accelerator and press the clutch in. If the BOV isn't ajusted right, it will vent the air causing the mixtures to go mega rich which will cause the engine to stall. And with the clutch pressed in it hasn't got the momentum of the car to keep the engine going.

Does that make sense ??

J