Safe Boost R32 Gtr

[Deano 1]

hey all

Just brought my first Gtr, r32

power Fc

Nismo upgraded turbines (T25/T04B 0.64) with metal turbine blades

HKS Turbo dump pipes & front engine pipe

Tomei sump baffle

Tomei type A cams

Jun cam gears

N1 oil pump

Whats safe boost for a Rb26dett what these mods. My boost controller is a Blitz SBC - i-D SPEC - R. If im driving long in say 2nd gear. And roll on boost to 7.3-5k rpm. My boost controler says peak boost 19.5psi. when i got it set on High boost setting. on the other setting it dosent boost past 16psi.

I just dont no how much i can lean on it. I have all the recipes for the tuning it was tuned 3months ago for 19psi. But dont no i dont want any probs any time soon. just making sure you no.

Have many people boosted there rb26s unforged that high? if its high at all. whats high boost for a non forged rb26?

sorry if this sounds like a noob question. Im new the the GTR/rb26 seen.

cheers for any help

[32godzilla]

I am no expert but 19 - 20 psi on a stock engine should be fine as long as your tune is good, i.e. not leaning out. From experience the 32's don't like being held over 7500rpm for too long, hece the semi redline at this figure.

I would of thought a stocky should be good for around 25 psi with a safe tune and a good driver?

[Rav]

I have Garret 25/60Rs and i run 21Psi making 328rwkw. If your engine in good condition you can make up to 350kw on the stock RB26.

[Deano 1]

Need to get get some Pods and some Z32 AFM. im still runing factory AFM and airbox. Made 312awkw. so im interested to see what it makes with the next small mods

[Duncan]

should be fine with that boost as long as the tune is OK

[GT-R32]

Mine's seen up to 21psi through HKS2530s since last year. All good so far - touch wood! Similar situation and mods as you. I'm the same, revs are kept low barely nudging 7k rpm and only occasionally. Enjoy.

[Parag0n]

I ran HKS 2510's at 25psi with minor work to the top end of the engine - HKS Cams and gears, Tomei head gasket, and a few other things from memory.

Small turbos but they put me over 300awkw.

[doo doo]

Just remember the stock AFM's resolution max out at around 400-410 RWHP- Tuning res after this isn't necessarily brilliant. Tuning is the key to keeping it safe, but you'll also hit a point where the extra boost adds heat but not power.

[GT-R32]

Just remember the stock AFM's resolution max out at around 400-410 RWHP- Tuning res after this isn't necessarily brilliant. Tuning is the key to keeping it safe, but you'll also hit a point where the extra boost adds heat but not power.

Good point, I had not passed posting that as a 'given'. But his set up doesn't appear to have them.

Oh and budget for a rebuild at some point or another regardless, LOL.

[Patrick88]

sorry to hi jack thread but just a quick one.

I have stock turbos on my 32 gtr looking at bumping them up a bit i have herd that they are dodgy above 1 bar is this correct?

[GT-R32]

sorry to hi jack thread but just a quick one.

I have stock turbos on my 32 gtr looking at bumping them up a bit i have herd that they are dodgy above 1 bar is this correct?

If they were new(er) I'd say 1 bar no worries, but since they are older there is a risk in doing that.

[Rav]

I wouldnt boost the stock turbo's more then 1.0bar.

If you want to get more boost just buy a pair of Garret 25/60's, They are cheap and great and it be a safe opposition for you.

[Deano 1]

they not the stardard turbos. they N1 Nismo editions which have steel wheels. Ive got a nismo Evo 32 gtr