Rb25det compression

Discuss the RB20, RB25 and RB26 series engines.
Rb25s13mohammad
Posts: 1
Joined: Tue Mar 22, 2016 10:47 am
Car: 92 s13 hatch
Rb25det

Post

Hello everyone!

So my RB runs fine when it's cold but when it heats up to about 145 degrees there's endless smokers my oil pressure goes as low as 10 lbs and idles like s***. I'm thinking it could be my valves but I'm not sure.
10 psi boost
100lbs consistent compression over 3 tests on all cylinders
Just replaced a blow turbo w/ a OE rb25 turbo
300zx turbo mobile 1 oil filter
Mobile 1 10w-40
I'm trying to figure out if getting my heads ported and polished w/ new valve seats would Stop all the smoking. Any help is awesome because this is my daily lol


Yellow4g63
Posts: 3718
Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 RB20 240, 91 NX2000 VE power, 95 Stock 240sx
Contact:

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Do a psi test on your intercooler system and check your ecu for any codes. Could be a host of things from bad maf, bad coolant temp sensor or a leak in the system letting unmettered air in.


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