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Oversized Vavles

spooledup

By spooledup,
in Engines & Forced Induction

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N1GTR Grand Master

N1GTR

Posted
Posted

Hope you've got grip sorted out, youll need it.

I looked at getting oversized valves made up last year. Best bet is to send an RB26 one to whoever youre going to use, then tell them to work from that as a base. Once youve got them done, give them to your machinist with the rest of the motor and then he can cut valve reliefs while doing dummy assembly.

Why use Ti though?

spooledup Explorer

spooledup

Posted
  • Author
Posted

Hope you've got grip sorted out, youll need it.

I looked at getting oversized valves made up last year. Best bet is to send an RB26 one to whoever youre going to use, then tell them to work from that as a base. Once youve got them done, give them to your machinist with the rest of the motor and then he can cut valve reliefs while doing dummy assembly.

Why use Ti though?

im going for a big power build... something close to the HKS drag 33, i want it to hold together

bigmikespec Veteran

bigmikespec

Posted
Posted

Ferrea are awesome and is what I got. Ti valve unless you want to rev to 10k and it to last a short period of time is the biggest waste of money. $300 each mate I have the quote if you want to see it, by the way there are 24 of them. Custom made from US same people that do the top NASCAR shit. Naprec is also no good.

Titanium is only weight saving you can rev it higher (less mech losses as valve train light).

Those cams are very short duration too for twin 3540s and lots of revs and power.

zebra Grand Master

zebra

Posted
Posted

Titanium is only weight saving you can rev it higher (less mech losses as valve train light).

.

Not as big of an advantage in an RB being that the valve train is very light...well compared to a pushrod motor anyway

To the guy above...I heared mixed reports about the BC valves, some of them are just rebranded quality brands, some are of lesser quality

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