Jump to content
SAU Community

What Can A Rb25 Handle?

crazy_ado

By crazy_ado,
in Engines & Forced Induction

 Share

Recommended Posts

crazy_ado Explorer

crazy_ado

Posted
Posted

Just want to know what sort of boost a RB25 can handle with a standard bottom end?

Also if anyone has any experiance with auto trans in r33, how much power can they handle before they fail? and

How power loss compares between auto and manual trans in a 33?

Any help would be appreciated.

Link to comment
https://www.sau.com.au/forums/topic/345518-what-can-a-rb25-handle/
Share on other sites
The Dan Grand Master

The Dan

Posted
Posted
Just want to know what sort of boost a RB25 can handle with a standard bottom end?

Also if anyone has any experiance with auto trans in r33, how much power can they handle before they fail? and

How power loss compares between auto and manual trans in a 33?

Any help would be appreciated.

Have seen around 50psi.

I've seen autos handle 250rwkw and heard of them breaking at 220rwkw

About 50hp loss I think

PM-R33 Grand Master

PM-R33

Posted
Posted (edited)
Just want to know what sort of boost a RB25 can handle with a standard bottom end?

This has been covered A LOT of times, please search through the forums and you will learn the answers.

The simple fact is there is no such thing as "how much boost can they handle".

Boost doesn't kill engines.

Running 20psi from a T28 at 7000RPM making 250rwkw is a lot different from running 15psi from a T04Z at 7000RPM making 350rwkw. *figures are just made up*

Please research into what "Boost" actually means as turbos don't technically make boost, they produce high amounts of airflow that increases as the RPM increases which in turn is too much for the engine to swallow and therefore the pressure builds up in the intake system. This pressure is what we call boost. If you get a good understanding of how turbochargers work and what actually can destroy/make an engine fail you will learn a lot.

Also let's please not go into the whole drivetrain loss argument, that has been covered to death aswell.

Edited by PM-R33
PM-R33 Grand Master

PM-R33

Posted
Posted

Here are two of probably the best threads regarding drivetrain loss that I know of on these forums. Once you read should cover everything (Also saves this thread from turning into one of them again.)

http://www.skylinesaustralia.com/forums/Bh...drivetrain+loss

http://www.skylinesaustralia.com/forums/Dy...drivetrain+loss

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

    • Predator1
      Tomei gasket

      By Predator1 · Posted

      Didnt realise RB's had more then 1 head.
    • MBS206
      Unpeeling the Orange

      By MBS206 · Posted

      I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • GTSBoy
      Unpeeling the Orange

      By GTSBoy · Posted

      Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • Kinkstaah
      Unpeeling the Orange

      By Kinkstaah · Posted

      The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
    • MBS206
      Unpeeling the Orange

      By MBS206 · Posted

      The annoying part about neglect, is when you start to replace one thing, and find ten more broken things. Ham fisted monkey repairs you normally only find out about when trying to do something unrelated! Ha ha   Neglect you can kind of anticipate the huge costs to fix it all. Ham fistedness is normally a shock the first time your work on a new old car, as everything "looked" good before.
×
×
  • Create New...