Jump to content
  • Welcome to SAU Community

    Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of SAU Community by signing in or creating an account.

    • Start new topics and reply to others
    • Subscribe to topics and forums to get email updates
    • Get your own profile page, build reputation and make new friends
    • Send personal messages to other members.
    • See fewer ads!

    Consider joining our newsletter for the latest content updates

    Click here to register


Few questions on RB25 Gearbox.

Recommended Posts

Hey there

So atm I'm interested in a R34 that been listed for sale at sorta reasonable price. Only issue is that it was originally an NA and has had an RB25 series 1 from a 33 put in. The gearboxes is what I'm abit worried about though. 

I'm aware that the r33 and the r34 turbo gearboxes are similar. 

But what Im wondering is how much Horsepower can a 34 NA handle?

How can you tell the difference between the NA and the turbo gearbox?

And anything else to worry about you can think of

Share this post

Link to post
Share on other sites

Dunno about laws in QLD, but that combo would be impossible to rego in Vic (older engine in newer car) without some hefty engineering costs.

Generally (generally!) speaking the NA gear is good enough to handle the STOCK output of turbo motors. More generally speaking think longer term owning the car and ask yourself is this a can of worms you want to get into?

It'd usually be smarter to save a little more and get something with less potential headaches going forward.

  • Like 1

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...