Freebaggin

OK, that'll be good to find out. I see you already have 530rwHP as on the TR web site. Have you changed something?

RNS11Z, What compressor and exhaust housing are you running? Would be interesting to knwo in regards to turbo response vs top end power. Cheers.

Guys, Any HKS relevance goin on here?

Ah, I see on your signiature that you gotr 212rwkW at 1.0 Bar.

Ezekrael, How did you go with the GT2540? Do you haev before and after power figures? Or even a before and after Dyno chart? Cheers, Freebaggin.

Agree with Turbo Tits, 2530 on RB25 would be a very reponsive package capable of 220rwkW for sure. Also hardly anyone does twin turbo conversions on RB25, there is no advantage doing it.

Thanks Craved. I have had many alignments since then (3 yrs ago since I put in adj castor bushes). I think the tramlining is tyres, but the noises I'm not sure about. Will have all this checked when I get some S03s on the front, will keep posted.

For WW2 you will need things for GO mate, non of this slowing down bisso. Look at grepin, he's now got 60% more power than stock and his brakes and fluid are the same from when the car left the factory in Japan!

Passenger side creaks and groans sometimes when stationary and approaching full lock. Also the car is tramlining bad and I have been thinking it is due to either of the following: *Front Tyres 90% gone *Front left suspension upright stuffed *what Clint32 has now mentioned re the steering rod ends Oh also, I have adjustable castor bushes and I have 7-8° castor.

Dyno now comming from Melbourne apparently.

Apparently, Cabin guys struggling to get someone to agree to have their dyno set up this weekend! Does anyone know any different?

grms, mate that is great, I hope you get some serious offers for 24hr event as I am going to the race again this year. Never seen Sport Cars on TV, must have missed it, I assume not the same as Sports Sedans.

Great car, I think that's the tuffest GTR I have ever seen...and I've sat in the Gibson GTR! grms, what exactly is the class you are running, as in what races will your GTR being in? Big big shame re too much bullshit to get into Nations Cup. Can you run in the Bathurst 24H under a particular class? Cheers, Freebaggin.

Clint32, that's pretty cool isn't it, a Jap hi-po engine going into an M3 of all things!

adam32, yep a few of us here have done that already (for about a year now), I also removed the rubber strip to increase gap width. Not sure how effective it is as I only recently noticed the exhaust manifold upper studs on 5 & 6 cylinder had fallen off!

Sydneykid, sounds feasible re RB26 manifolds when pushed. So if the problem is compounded by no. 5 & 6 location relative to the radiator & water pump (that goes for any RB series motor), is there any merit in upgrading the cooling system when stretching RBs to ensure longevity? If so, what would be a realistic stepwise uprgade path? Higher capacity water pump? etc etc For background I have RB25 + very soon bolts-ons to obtain 250-260rwkW and want to make sure pistons last at least a little while.

51jay, I had a look at my motor during lunch and I had it wrong re fuel supply point. The fuel comes in from the back as well (ie closest to no 6 cyl) not the front. Spoke to a Chem. Engineer here at work and he said maybe there is higher pressure at no. 6 piston causing cavitation at the injector and consequently less flow. ????

Gav, where did you here this, as I think there's merit in the 5 & 6 running lean/hot when the RBs are pushed. I have bought big turbo and have stalled its install to make sure I have good fuel supply to rear of motor. The delay is due to a couple of cars very recently here in SA have blown no. 6 pistons and also no 5 & 6 upper studs on my exhaust manifold have sheared off indicating to me greater heat cycling. The issue I think is high pressure drop across the fuel rail at elevated fuel pressures and since it's a front feed system the end of the rail might see less fuel pressure. Many aftermarket rails have centre feed, equalling out the pressure a bit.

How many threads to we need on this topic?

Clint32, Shit, I saw your reply and thought doh myself, as I forgot about your runs. I assumed the E/Ts were better than mine due to the very quick top end. Get your launch OK and it'll be a 12s job for sure. Chris32 had trouble getting a good start/rpm balance too.

Great day, thanks Ivan & crew from RPM. First time I've ever done it and was good to drive home OK (apart from a now leaking exhaust manifold that I'm told is no big deal for a while!). 13.42 ET, 106.5mph, best 60' was 2.11s. Main thing is that I beat grepin, Chris32 and Bugalugs :burnout: Dare I say quickest GTS-T on the day! Bugalugs' run were amazing though, 13.44 I think and 106.99mph!! And that's with a stock ECU...good stuff. grepin, do you now surender? Do we declare WW1 has been won by Freebaggin .... or should we wait until after the climactic battle this Sat at Tilbrooks for the outcome of WW1? Then WW2 starts soon after!

Joel, what new motor? I must have missed that.

Would be beaten by Rexs for 0-60, but I reckon same 0-100 as STi. Would cream them 0-400m and rolling accel. Forget it in the wet of course. BTW, why doesn't he use Microtechs in Rexs?

The Microtech works real well. My car was the first to get the plug-in LT-12 for R33s, it was Tim Possingham from RPM Performance Centre (www.horsepowerinabox.com, www.rpmperformancecentre.com.au) here in Adelaide that developed it for me as a customer as I wanted a plug-in ECU but did not want a Power FC. Good for future power upgrades and data logging with Laptop, had it for over a year now. The performance gain over stock ECU was phenominal by giving the motor a proper tune at higher boost levels. But the success of it all comes down to the tuner and his dyno and road tuning skills. I went from 170rwkW to 200rwkW just with ECU and boost increase from 11psi to 14psi. Fuel consumption will go up due to the Microtech by about 0.5-1L/100km. But any decent aftermarket ECU will open up the potential of the RB25.

No worries gjb977, Correct me if I'm wrong, unless there's something new the Microtech can't do a proper FEEDBACK boost control liek say a MoTec, however it can do a simple "electronic" bleeder arrangement that can be controlled from within the cabin with a trim pot or variable resistor. I have a plug-in LT-12 and I optioned the trim pot with mine and it works well but it does not maintain boost at the exact level all the way across the rev range like a dedicated EBC would do. Sounds like you are cinsidering a new EBC anyway so go for it. Have a look at the new e-Boost from Turbosmart, very very easy to set up apparently since it's design by Aussies, you won't have the trouble/complexity as with some of the Jap stuff.