Jpc Highflowed Turbo

[Levy]

Hey guys im going for a retune on Monday but this time im getting 555cc nismo injectors and a z32 afm put in.

My previous tune made 246rwkw on 16psi but bleeds back to 15 with supporting mods:

RB25DET with standard internals

JPC Highflowed turbo

Walbro 255lph in tank fuel pump

3" exhaust with high flow cat

FMIC

Splitfire coilpacks

Power FC

My question is how much boost can a highflowed turbo handle? The previous owner had highflowed the turbo at JPC and apparently JPC told him that it can handle 400-450hp??

Im hoping that 18psi can see me around the 260+rwkw?

Cheers

Levi

Edited December 14, 2011 by Levy

[zebra]

6 billion trillion psi

[S1DWYSR33]

6 billion trillion psi

+1

[Hanaldo]

*Waits for "how long is a piece of string" comments*

[LANDSCRIBBLE]

have you tried asking JPC?

[Levy]

have you tried asking JPC?

Nah il do that 1st thing tomorrow morning.

[Levy]

i know that if put more boost in it will shorten the life span of the turbo but i want to know what would be a safe psi as a daily. Im well aware of the risks involved but i just want to hear some oppinons, not smartass comments. if your gonna take the piss take it somewhere else or keep it to yourself

Edited December 14, 2011 by Levy

[DVS JEZ]

i reckon the turbo will handle more boost than the engine can take, so pick a boost that your engine likes

[Levy]

i reckon the turbo will handle more boost than the engine can take, so pick a boost that your engine likes

So you reckon the turbo is more than capable? Can you elaborate?

[DVS JEZ]

yes i do, boost doesnt normally kill turbo's its more the shaft speed etc, its a highflowed steel wheeled turbo, so i would expect it to sit on 22psi comfortably,

depending on what you use your car for ie daily or circuit etc, tune your car to suit, daily i would run 19psi on high boost, but on the track maybe 14 to keep the engine happy

[Hanaldo]

Mate there are so many variables. Comp wheel/turbine blades/size/material, quality of porting, bearings used, etc etc etc. Not all highflows are the same, so unless you tell us the exact specs of the turbo, it will be impossible to say exactly what it can do.

The best thing you can do, aside from contacting JPC about it, is to give it to your tuner and ask him to tune it to the turbos efficiency. They will be able to figure out.

[Levy]

yes i do, boost doesnt normally kill turbo's its more the shaft speed etc, its a highflowed steel wheeled turbo, so i would expect it to sit on 22psi comfortably,

depending on what you use your car for ie daily or circuit etc, tune your car to suit, daily i would run 19psi on high boost, but on the track maybe 14 to keep the engine happy

Makes sense to me, just the answer i was looking for thanks man i appreciate it

[Levy]

Mate there are so many variables. Comp wheel/turbine blades/size/material, quality of porting, bearings used, etc etc etc. Not all highflows are the same, so unless you tell us the exact specs of the turbo, it will be impossible to say exactly what it can do.

The best thing you can do, aside from contacting JPC about it, is to give it to your tuner and ask him to tune it to the turbos efficiency. They will be able to figure out.

Dont know the specs, so i guess il leave it to the tuner

Cheers

[Pal]

normally those figures are flywheel hp as well

[Black_CSR]

Pretty simple answer.

Tell whoever is tuning the car to keep pushing boost until it stops making decent power at each increment of boost.