Jump to content
SAU Community

RB20DET power/boost peak before head lift

RB_CEF

By RB_CEF,
in Other Nissan Imports

 Share

Recommended Posts

RB_CEF Newbie

RB_CEF

Posted
Posted

Hey guys just wanna know how much power and boost I can push my 20det to before seeing problems with stock headstuds and gasket. I’ve got 130psi on all 6 cylinders and have all the supporting mods to make over 250kw exept head studs and gasket so for now what numbers am I looking at? 

Link to comment
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

Le sigh.

Let's say that I have personally seen RB20s do over 260 rwkW unopened. Let's also allow that that was 15-20 years ago and these engines are now at least 30yrs old. Who knows whether your head gasket is as good as 20s typically were 15+ years ago, or if it has suffered a few years of running with not enough tension on the stud nuts, or any of a dozen other things that could cause it to not be as good as they used to be?

So, just chuck 30 psi in it and see what happens.

  • Like 2
Link to comment
Share on other sites

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Rear suspension upgrades

      By Dose Pipe Sutututu · Posted

      A31 is pretty much the same thing without HiAIDS I mean CAS, no improvement lol. Not to late to send it.
    • carnoobb
      Newbies

      By carnoobb · Posted

      Thanks for all the replies! I also wanted to ask if wheels that were fitted on Ford Falcons would fit the 350GTs as well? In the area I'm at there aren't that many options for secondhand wheels and new ones here are way out of my budget. From what I've seen, most of the wheels that are available that were fitted on Ford Falcons have an offset of +33 to +36, with a centre bore of 70.5mm whereas the stock 350GT's ones are 66mm, can't seem to find any hubcentric rings that fit that difference though. 
    • sonicii
      Newbies

      By sonicii · Posted

      215/45/18 tyres are probably a little on the low side compared to the factory tyre, it should be closer to a 245/45/19, which will get you about an extra 11mm of height, and should make you speedo read a bit closer to reality. 245/45/19s will be a bit too far the other way and you risk a speeding ticket as your speedo might read slower than your actual speed.  245/40/19s would be correct if you are going to 19in rims, they will give you a similar total diameter to the 245/45/18 tyres.  
    • GTSBoy
      Rear suspension upgrades

      By GTSBoy · Posted

      That's something I forgot to put in my list. The aggressive anti-squat in R32 is a f**king menace. I still need to decide if I'm going to drag the subframe out of my car and weld in the GKTech corrector kit. The main reason to dither is the need to switch to spherical joints in the lower arm to account for the twist induced in the rear pivot caused by lowering the front pivot. And yes...we do put better subframes in R32s, and I wish I'd gotten an S14 one instead of an A31 when I did the "take off and nuke it from orbit" HICAS delete all those years ago.
    • HYBRID VL
      V37 Alarm settings and what the buttons do.

      By HYBRID VL · Posted

      I have been looking at some setting on the alarms for the Q60 and what buttons do and so and also been looking for details on the alarm in my V37 which is a standard issue with the car. settings like window roll up and a few others seem to not work at all. i cant seem to find exact info on V37 alarms so Q60 is all i can really go off i have not tried 400Z alarm settings or info yet so that will be next. any one got like a sheet of info on the alarm system in the V37 as all my documents are in japanese but i thought the system would basically be like standard through similar models? 
×
×
  • Create New...