Jump to content
SAU Community

Recommended Posts

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

Link to comment
https://www.sau.com.au/forums/topic/278661-safe-boost-r32-gtr/
Share on other sites

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?

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.

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.

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.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Kinda glad I never got to this ..    https://www.facebook.com/groups/1483859159195077
    • @GTSBoy This method was able to get readings of -10 to -2, so it looks like its monitoring.  Now I need to figure out why the vacuum on the line provided isn't alternating with manifold pressure.  I went with 2 lines that an RB25 tuner recommended but I'll get a longer hose and try directly off the back of the manifold.  He may have been used to OEM intake setups while I have a DBW setup that removed the MAF and IACV.  
    • I work at a car detailing and tinting shop called Quark which gets all manner of German cars in usually (mainly due to a contract with Mercedes Benz Kita Osaka, BMW Nishinomiya and others) but every once in a while something special comes in, like a fully restored 1972 HS30 Nissan Fairlady 240ZG... The shop owner had immediately started applying film to the windows as soon as it was in the shop so the interior was completely covered in towels and plastic sheets. But I could get a few photos of the engine bay which was restored like new. Such an amazing car to see in pristine condition in Japan these days.  
    • Was going to say the car pulls up nicely everywhere, especially going into that last long right hander before the main straight. Looks like a lot of fun.
    • Hey Dave, welcome aboard! Good to see another soon-to-be Stagea owner here. The wagons are awesome — plenty of space, still got that Skyline DNA, and loads of potential if you’re into mods. Definitely post up pics when you get it, everyone here loves seeing new builds. What model/year are you looking at?
×
×
  • Create New...