Jump to content
SAU Community

R32 RB25DE Cam shaft information

zoidbergmerc
 Share

Recommended Posts

zoidbergmerc Mentor

zoidbergmerc

Posted
Posted

Hi All,

I done gone broke a camshaft on the weekend and I'm having a dickens of a time trying to find a new one.

The Cylinder head I've got is a R32 RB25DE head and I've broken the Exhaust cam.

I'm really after some information regarding what cams from what other RBs I can put in there and have it work essentially.

image.png.5942855dbc7fe3e4008f26097d26a7c1.thumb.png.20db205b2c998ca7b3a3ba5e8c843f97.png

I found a nice table on the Tomei website about all the specifications of the cams in all the different RBs but I haven't been able to find any info on what cams will fit into what heads, are they all different? Are they all the same? Can you mix and match some and not others?

TomeicamsRB.thumb.PNG.6647d5a05dad26891d5e6868e1caa494.PNG

https://www.tomeiusa.com/_2003web-catalogue/e090_camshaft-specs.html

 

Any help anyone can offer would be greatly appreciated! I don't really want to buy new aftermarket cams if I don't have to.

Link to comment
https://www.sau.com.au/forums/topic/478044-r32-rb25de-cam-shaft-information/
Share on other sites
zoidbergmerc Mentor

zoidbergmerc

Posted
  • Author
Posted
2 hours ago, mr_rbman said:

um the bulge on the front cam gear cover suggests to me you have VCT and therefore a head from a 33?!?

 

Yeah that’s just the cover, paint was nicer than the other one. 

It had 26 cam covers too ;)

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I would look for an R33 DET cam and measure it before you buy. There should be heaps lying around from people who have installed poncams etc. There's one on ebay now for $50 but an intake unfortunately.

mr_rbman Grand Master

mr_rbman

Posted
Posted
16 hours ago, zoidbergmerc said:

Yeah that’s just the cover, paint was nicer than the other one. 

It had 26 cam covers too ;)

ahhhh, makes sense now ;)

I had an RB30 twin cam with the same head then as you have and ran a reground RB26 cam for a 32/33 head many years back, stock RB26 cams are relatively cheap...

I reckon I have mine lying around if you get desperate...

blind_elk Grand Master

blind_elk

Posted
Posted

There's only .5mm increase in lift - can't see that being a problem.

I'd suggest the RB20DET cam - same Lobe Centre Angle (Pre-set Valve Timing), slightly more lift and slightly longer duration (might be a useful thing for the big-arse hairdryer there)

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

    • MBS206
      RB25DE NEO with Haltech ECU

      By MBS206 · Posted

      You very likely need to get it on a dyno and tune it. My assumption is, you've got an RB25DET tune in it, which has a different manifold, different injectors, and different cams as a minimum. What O2 sensor are you running?   When you say it runs extremely rich from idle all the way to redline, is this just free revving it you see that?
    • Haggerty
      RB25DE NEO with Haltech ECU

      By Haggerty · Posted

      I seem to the be only person that is using a Haltech 2500 on an NA motor, I've installed a Bosch DBW throttle body to the OEM intake manifold and am having problems maintaining AFR even with the wideband o2.  It will run extremely rich at idle and up to redline, but under load it will go extremely lean in the 20s and i'm essentially having to rev it over 4k and feather the clutch to get it up to speed.  I've read a few other threads of about the butterfly, it seems removing the vacuum to it is supposed to have it remain open, i've noticed no difference under 4k with the vacuum line to it plugged.  I'm hoping someone here has had luck using the NA manifold with Haltech, and if they happen to have a tune for it.  
    • sonicii
      Could it really happen......

      By sonicii · Posted

      I don't know any details, but I really wouldn't be surprised if they do it as a LHD only version, at least initially.
    • Gareth87
      What should I do next to hold the head on

      By Gareth87 · Posted

      Thanks for the replies everyone. Definitely a coolant push. Oil catch can is empty and always has been. As the engine is out now I'll be having a good look over things. I do have some detonation on the piston tops from a trigger issue back about 5 years ago. I felt it and shut off then bought a new ecu and changed the trigger. Never been an issue since. It never hurt the power, its made almost 80hp more since that incident but I will pull the bearing caps to take a look. If the bearings are damaged I will do a bottom end refresh. Head is being re conditioned at the moment and the block will be cleaned and checked to ensure it's flat. I'll go with a kameari gasket and see how it ends up. The other thing I'm not super keen on is the cylinder colours. I suspect this is from the inlet manifold. The plan will be to put it back together, retune and then stick a plazmaman billet inlet on it and retune. I'm happy with the power, if it makes a little more, then great, but I would rather just make everything more efficient at this stage.
    • MBS206
      Could it really happen......

      By MBS206 · Posted

      Maybe they'll look to do a bunch of presales to help inject some cash fast for their financial issues...
×
×
  • Create New...