Turbo? Rate It..

[Stealthynsa]

RB25 front housing and core - ar63 rear housing - 30psi thrust bearing - gt30 front compwheel

this good setup?

[Stealthynsa]

oh i forgot to mention, this has been added to my rb25 ( non turbo )

[cameron]

And?

Tell us more about the engine.

[Stealthynsa]

And?

Tell us more about the engine.

all i want to know is do u think this turbo is a good setup.. i stated its on N/A Rb25. 2 and a half inch cat back piping. 7" cannon. 6.5" tip

[Mandingo]

how much boost?

I give it 2 weeks before it throws a rod

[180bfj20det]

how much boost?

I give it 2 weeks before it throws a rod

It wont throw a rod unless you run big boost. I rekon 14 psi and youll be fine. Just get it tuned properly. That said, I dont know about the strength of the RB25DE bottom end, but I cant imagine it being weaker than NA SRs or CAs which can handle 14 psi on stock bottom end.

Go it!!!!

[Stealthynsa]

my turbo the way its setup has pushed out 265kw at the rear wheels on another gts-t...

that not running full boost that was running 15psi my turbo can run upto 30psi

[VB-]

my turbo the way its setup has pushed out 265kw at the rear wheels on another gts-t...

that not running full boost that was running 15psi my turbo can run upto 30psi

your turbo can run 30 pound, but ur motor cant

[R31Nismoid]

got a compressor map to prove that statement?

[Stealthynsa]

your turbo can run 30 pound, but ur motor cant

lol so did u wanna tell me anything i dont know?

[Stealthynsa]

yeah i know the turbo can put out 30psi but give it time and ill work my engine to support my turbo...

this is only the start of things

and yeh i was just wanting someones opinion on my turbo...

do u think ill get much lag ect....

[Cubes]

RB25 front housing and core - ar63 rear housing - 30psi thrust bearing - gt30 front compwheel

this good setup?

No... Its a very poor setup. What turbine wheel is it running, a motor is generally limited by its hotside, not its compressor.

[Dale FZ1]

RB25 front housing and core - ar63 rear housing - 30psi thrust bearing - gt30 front compwheel

this good setup?

I take it you meant 360 degree thrust bearing?

If so, you are talking about a plain-bearing cartridge? Not going into the whole plain bearing / BB debate - been done to death. I'm not against plain bearings, but I did go with a BB cartridge upgrade.

When you say GT30 impeller, are you aware there is a range of trim sizes available? Which one? Nismoid's question about a compressor map is justifiable - read the literature that Garrett put out about them. The maths is not that hard either - you do need to know what your power target and intended delivery is.

Cubes is also right about the hot side being generally the limiting factor - it has to be able to flow what the cold side is stuffing in, but also to drive the cold side efficiently.

I don't have any probs with your choice, just a matter of knowing what you want it to do. FWIW, The Mafia and Jmac have both used a similar cartridge to yours for upgrade. Their posts seem to indicate satisfaction, even if others disagreed at times. Do a search and see for yourself.

I believe the RB25DE runs 10:1 compression. That should point out the immediate limitation of your intended match: any significant boost will likely lead to an early failure. Otherwise use a small-ish turbo and get it to crank out significantly more torque than the N/A engine. Much the same as Nissan did with the DET. Might actually be cheaper and just as effective to buy/install a DET engine in that case.

cheers

[The Dan]

People are safely running 14 psi through the DE bottom ends on turbos of similar size down in Melbourne. Making 260rwkw. I have not seen it, however, but this is what I was told. Running more than this would be detrimental to your engine's health. That is also assuming the bottom end is not already "TIRED".

I don't think you will reach that hp figure but good luck with it anyway.