R33 Gts-t 205rwkw > 280rwkw. Best Method/possible?

[r33 chris]

Hey all,

In my R33 GTS-T Series 2, I'm currently running (with stock internals):

* Walbro high pressure fuel pump

* Apexi Power FC (running 14psi)

* Pod filter w/z32 pipe

* Full 3" turbo back exhaust with high flow cat

* Intercooler

which all up, outputs 205rwkW.

I'm looking at the best (and hopefully relatively cost effective) ways of getting 280rwkW+ (while keeping the stock internals), if possible.

Is this going to require a rebuild?

I thought I'd put it to you guys, as to the best course of action. Regarding budget, I guess it depends on the options available to me, but obviously lower is better.

Any advice/help is much appreciated.

Cheers.

[sloutch]

A bigger turbo - > GT3071 or HKS 2835

Injectors -> 500cc and above

Re-Tune

Since it's still below 300rwkw, no it does not require a re-build

[kessian]

People have run more than that power figure on a stock engine, it depends how you drive it, tune etc etc.

If your next question is regarding turbo choice, check out the thread on it.

[r33 chris]

A bigger turbo - > GT3071 or HKS 2835

Injectors -> 500cc and above

Re-Tune

Since it's still below 300rwkw, no it does not require a re-build

(emphasis mine)

Thanks for that.

Regarding a re-build, if the engine is not rebuilt, won't it strain the components much more once the output is increased?

Edited July 18, 2008 by r33 chris

[Nismo_God]

of course it will.

your chasing double what the engine puts out stock.

it can be done and it may not break anything, its been done many times before, but it will definitely be putting everything under more pressure.

[R338OY]

A bigger turbo - > GT3071 or HKS 2835

Since it's still below 300rwkw, no it does not require a re-build

Your right about the turbos, wrong about the rebuild. There's no magic number when RB25's pop. 280kw is getting close to the power threshold, but a nugget RB25 could seize at 270kw or less. Age, wear, tune etc etc all effect the engine's health.

Chris if you make 280kw keep in mind you'll rapidly shorten the engine's life.

[PM-R33]

Tune with safe AFR's, keep the limiter on 7000rpm or lower. Dont thrash the thing too much and use good oil and it should last for a long time. How long it will last is another question, how long is a piece of string?

[gt-ahhh!]

upgrade the turbo fo sho!

im told the injectors can handle about 250rwkw so youll need bigger ones.

i run a forward facing plenum. not sure how much difference it makes, but worth researching i guess.

[r33 chris]

Your right about the turbos, wrong about the rebuild. There's no magic number when RB25's pop. 280kw is getting close to the power threshold, but a nugget RB25 could seize at 270kw or less. Age, wear, tune etc etc all effect the engine's health.

Chris if you make 280kw keep in mind you'll rapidly shorten the engine's life.

I had a feeling 280 may be pushing the envelope a bit.

Would 250 be more reasonable?

[33drifter]

A bigger turbo - > GT3071 or HKS 2835

Injectors -> 500cc and above

Re-Tune

Since it's still below 300rwkw, no it does not require a re-build

As Above

Plus

coilpacks

Boost Controller

Z32 afm

clutch

also if you want the engine to last longer i would get an oil cooler and head gasket aswell

Edited July 18, 2008 by 33drifter

[bombtrack]

I'm sure he'll post in this thread soon enough as he's a wh0re but PM joeyjoejoejuniorshabadoo. He has just finished an R33 running 265kW with the mods mentioned in this thread, turbo was HKS 2835. No rebuild, with an awesome tune. The car is super responsive and the tuner has suggested that it will run like clockwork for a long time. His low boost is 245kW which seems mild enough for the street and his high boost at 265kW is brilliant.

To add to the mods above, do some work on your suspension/handling. You won't regret it.

I am about to do the same thing in an R34 with a desired output of about 275-280kW. Newer motor and cams are really the only reasons why I am looking for a bit more.

Good luck mate.

[r33 chris]

yeh ive got suspension and some other handeling mods done makes a huge difference, but 265 rwkw sounds awesome the only thing i was worried about is reliability but if it will last i would definatly follow in his direction.

thanks again to everyone for your advise

[joeyjoejoejuniorshabadoo]

what you have to remember is that you can upgrade power cheaply... but its just stupid.

for my 265 i have upgraded brake rotors & pads, adjustable camber & castor, sway bars, struts, coilovers, hicas lock etc etc and diff & oil cooler are next

not to mention that i wanted it responsive, so i went for an exhaust cam gear (to keep vct) and brought the power band down (dont mind losing 15 kw up top to get it all @ 3k)

if you do it properly it will not be cheap.

by all means go for it

check out this thread for more info on my experiances with the 2835