rb26 build options

Discuss the RB20, RB25 and RB26 series engines.
farmer
Posts: 47
Joined: Wed Jun 01, 2005 2:32 pm
Car: 1990 nissan 240sx

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well i have manged to break my rb26 in my s13, i blew the head gasket and in the process blew a turbo, so my plans are to rebuild the motor , im planning on goin with a sinlge turbo (t62) i have the manifold and wastegate but im not sure what i should do to the motor to be able to handle upto 25psi of boost, im thinking about new bearings for the crank and connecting rods. im thinking of keeping stock bore and honing out the cylinders. also i have a set of tomie stage 2 cams comming. is there anything else i should do to make the motor more reliable .

if im missing something or overlooking something pls let me know thanks

farmer


Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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The list of items sounds like you have a pretty good sized project on your hands. If you've got cams coming, have you considered replacing your valve springs while you're in there?

I'd also replace the head gasket if I were you

farmer
Posts: 47
Joined: Wed Jun 01, 2005 2:32 pm
Car: 1990 nissan 240sx

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i plan on putting a metal gasket in , also doin valve springs also , but im not sure if using stock internals on the bottom end will support 20psi (near 500hp)

farmer

gawdzilla
Posts: 2028
Joined: Sat Sep 18, 2004 11:51 am
Car: none

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oil pump collar


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