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R32 RB25DE Cam shaft information

zoidbergmerc
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zoidbergmerc Mentor

zoidbergmerc

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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.

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https://www.sau.com.au/forums/topic/478044-r32-rb25de-cam-shaft-information/
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zoidbergmerc Mentor

zoidbergmerc

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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
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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)

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