t3/t04e

[reflex]

im looking at buying a t3/t04e for my rb25det. ($1000)

it has stage 3 wheels, 3" inlet, 2" outlet, .50 A/R compressor cover and .63 A/R turbine with a .57 trim

Its internally gated and will bolt straight up.

To fit the turbo what mods will have to be made? ie intercooler piping?

so far my car has FMIC, upgraded fuel pump, surge tank, 3" zorst from turbo back, and air intake. I only have factory ecu and injectors. will they be up to it?

what kind of power at the wheels can i expect running at 10-13psi?

[KamikazeR33]

no ur comp or injectors wont be up to it

turbo size would make about 250rwkws prob

[reflex]

im after 240rwkw or so...

my plan of attack is to do this in a cpl of stages

stage 1: power fc + HC -$980

stage 2: injectors -$650

fuel regulator -$200

stage 3: t3/t04e turbo $1000

theres a couple of these turbo's on the market and some dont have the best reviews. This worries me a bit. Im on a bit of a budget but im after a turbo that bolts straight onto the existing rb25det manifold and is internally gated.

Have much to get this stuff fitted and tuned and does anyone think there is anything else i would need?

[Sydneykid]

Let me make sure I have got this right, are you really considering taking a ball bearing, water cooled turbo off and replacing it with an older generation, plain bearing, non water cooled turbo?

If you do make that decision, you will have to;

Block off the water feed and return lines

Buy a compressor inlet adaptor (the diameters are different)

Have an adaptor fabricated to fit the compressor outlet to the standard intercooler inlet pipework

Have an adaptor made for the wastegate actuator

Add up the cost of parts, plus it will take at least three times as long to fit. Add that to the $200 you don't need to spend on the adj fuel pressure regulator, the Power FC and the injectors will do the job perfectly. You should than have almost enough to buy a ball bearing hi flow, which is a far superior solution technology wise and will save money in servicing over its life.

Hope that is of some help:cheers:

[reflex]

fair enough, is there other options beside the high flow then? is there a great difference between the stage 1(450hp) and stage 2(500+hp) high flows.

Are gcg the most reputable highflower or is there other co's out there that can do an adequate highflow?

[Sydneykid]

fair enough, is there other options beside the high flow then? is there a great difference between the stage 1(450hp) and stage 2(500+hp) high flows.  

Are gcg the most reputable highflower or is there other co's out there that can do an adequate highflow?

I only used the 450 bhp hi flow from GCG, I always believed that the 500 runs too close to the surge line. I had heard that they don't do the 500 anymore for that reason. We get 265 rwkw out of the R34GTT with one, which is pretty close to the rated 450 bhp, so it's a genuine number. Plus it makes more power EVERYWHERE than standard. There are quite a few other RB25's with similar results, so it's not a fluke engine.

As for other options, there are litterly hundreds. But you set a budget and the fabrication and extra work required to fit them would blow that budget. Plus I am not a fan of taking standard internal RB25's over 450 bhp, some people do it and get away with it, but plenty more have had failures. For an all round performance (drag, circuit and road), almost standard response, ease of fitting and right up to the std internals limit, I have yet to find a better solution.

[reflex]

ive seen a cpl of 2nd hand high flows for sale for bout $1000. What is the expected life of a high flow and would you u steer clear of a 2nd hand high flow?

Refering to my first post would i need to upgrade the injectors with a 450 hp high flow or would i be able to get away with a just fuel regulator. I already have an upgraded fuel pump.