R32 Gtr Vs M3

[GarettH]

I'd like to start with I'm in no way condoning street racing and simply asking for some opinions. So I'll start off with why I've made this thread. I'm trying to figure out if I have stock GTR turbos, I imported my 1991 GTR last year and was pretty much bone stock with 128,000km. It had the 100,000km done in Japan came only with Work Equips, St. May Jasma exhaust and thats it, even stock air box. The car now has 18x10 Work XD9 wheels, Tomei Titanium Exhaust and Apexi intakes. The car came with the stock boost restrictor in so I removed that also.

From what I've read a R32 GTR with exhaust, intake, boost restrictor out should make around 350 hp at the crank. I've raced multiple Subaru STI's of all years 2004, 2006, 2008 all with a cobb stage 2 kits and have beaten every one by at least 2 cars. I've raced a couple SR20s from a roll and it's also not even close. But recently I raced a friend with a 1998 BMW M3 with a stage 2 supercharger with dyno sheets showing 420 hp @ the crank so probably around 370 whp. From a dig it wasn't even close but from a 40 roll by 4th gear I was ahead by 2 cars and I had misfire.

So i tried to take off some pipng to see if i could find stamping on the turbos but it's damn near impossible to see anything. So i'm looking for opinions if you think there stock or upgraded. Feel free to say what cars you have raced with your basic bolt on GTR.

[10 4]

You'd be making ~ 250-260rwhp untuned. Tuned at 14psi around 310-320rwhp.

A lot of people lie about their power because they have small penises.

Edited May 25, 2014 by 10 4

[BoyWhoCriedWolf]

Stage 2 supercharger you say.

I would have gone the carbon parts first. You get extra points at the end of the race if you have carbon parts.

[mad082]

Stage 2 supercharger you say.

I would have gone the carbon parts first. You get extra points at the end of the race if you have carbon parts.

And paint jobs help reduce your heat points

[Gramps32]

-> Speed off the Streets -> Wakefield or Winton

If the restrictor was still in it is a very high percentage that your Turbo's are stock.

- and with what you are doing wont be long before they blow the ceramic wheel off and/or you do a big end bearing)

Your first engine rebuild seems not too far away !

[BoyWhoCriedWolf]

Cmon Rick, we all know that the std ceramics are stage 3 items already. Just needs a chip and some fuel additive and you can squeeze 21psi out of it. Good for 11's.

[GarettH]

I see I've attracted some trolls. Sorry for being so basic but company's do offer "stages" although I probably shouldn't feed you, I clearly stated he has dyno sheets of his car and these numbers are not made up. Putting all that behind us it has a Active Autowerkes Stage 2 Supercharger kit(Rotrex C38-81 Supercharger)

[(OO)SKYLINE(OO)]

How much boost are you running with the turbo setup in there at the moment?

What's your boost gauge read?

[GarettH]

How much boost are you running with the turbo setup in there at the moment?

What's your boost gauge read?

Stock gauge reads 1 bar

[10 4]

I had a 99 E36 M3 evo manual with 255rwhp (catback, flash tune) and mate had a 33GTR with 246awhp - 14psi untuned, catback and intake.

GTR pulled on M3 by a little bit. On track of course...

Your mate with the supercharged M3 can't drive or is bs-ing.... Or your car is tuned at 14psi (1bar) and making 310-320rwhp.

[stig0000]

Iv raced many comos with 400+hp and beat them with only 370-380hp turbo power is diffrent from v8 power

[GarettH]

I had a 99 E36 M3 evo manual with 255rwhp (catback, flash tune) and mate had a 33GTR with 246awhp - 14psi untuned, catback and intake.

GTR pulled on M3 by a little bit. On track of course...

Your mate with the supercharged M3 can't drive or is bs-ing.... Or your car is tuned at 14psi (1bar) and making 310-320rwhp.

Thanks for the reply, No markings on outside of ecu heres a couple pictures off the inside.

[(OO)SKYLINE(OO)]

Stock gauge reads 1 bar

I'd say stock Garrett T28 Turbo's with restrictor removed.

Iv raced many comos with 400+hp and beat them with only 370-380hp turbo power is diffrent from v8 power

The difference between those power figures (400+hp Como VS 380hp GTR) are marginal, you would have bet them due the launch of the 4WD system and the low down response of the stock turbos.

And there might have been a weight difference between the cars (generally speaking, without knowing what both car set-ups are).

[bozodos]

OP reads like he is in the US / Canada where the dynos read higher than here as well...

GTR would have edge over the average 400+ hp Commo purely based on AWD and the fact that GT-R owners don't tend to cheap out on tyres / useless big rims. Weight wise, if it's pre VE then it's almost the same.