Compression Numbers Rb26

Discuss the RB20, RB25 and RB26 series engines.
Nesquick
Posts: 393
Joined: Wed Oct 15, 2008 5:59 pm
Car: Rb26 Kouki Silvia

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k....so

just did a comp test on my 26, and here are the numbers.....

:Back of engine:134150158150138142: front of engine:

so what you think? rebuild now, or think i can wait for a bit?


Nesquick
Posts: 393
Joined: Wed Oct 15, 2008 5:59 pm
Car: Rb26 Kouki Silvia

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anyone wanna shed some light on this?

sepulchralx
Posts: 203
Joined: Tue Aug 02, 2005 8:19 pm
Car: 240sx

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Nesquick wrote:anyone wanna shed some light on this?
rebuild? are you serious?? those numbers aren't terrible.. i've seen way worse... drive it!

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Fibre guy
Posts: 712
Joined: Sun Mar 08, 2009 12:57 pm
Car: 91' s13 RB25DET, 95' s14 bone stock, 87' Wrangler 4.6L stroker

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Drive on it and save up to buy some awesome rebuild goodies.

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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did you do this on a cold engine with the throttle blades closed?

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Neejay
Posts: 2256
Joined: Sat Jan 03, 2004 3:50 pm

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Carl H wrote:did you do this on a cold engine with the throttle blades closed?
lol That's what I was wondering as well.

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WhatsADSM
Posts: 496
Joined: Fri Jun 10, 2005 5:27 pm
Car: 1998 240sx

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Yup engine needs to be warm and throttle WOT when you test. OP make sure you did that.

Either way I am a firm believer in "if it ain't broke don't fix it". Those numbers aren't that bad at all, I would just keep driving it.

s14_sport
Posts: 1852
Joined: Mon Nov 14, 2005 2:01 pm

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when you start getting numbers sub-100 like:

90...80...40!!!!! Then its time for rebuild...lol

thats what I did


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