RB25DET compression.....

Discuss the RB20, RB25 and RB26 series engines.
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tek747
Posts: 114
Joined: Mon Sep 04, 2006 10:22 am
Car: 95 nissan 240

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Does any one know the compression for the RB25??? Need it like quick, b4 my warranty runs south!!! HELP!!!

(I should have thopught about this earlier!!!I know)


Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

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what?

you mean static compression? or compression test numbers?

whats wrong?

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rustbucket
Posts: 224
Joined: Tue Apr 11, 2006 3:05 am
Car: '90 s13 RB25DET SII

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9:1, but im guessing you mean compression test numbers.

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tek747
Posts: 114
Joined: Mon Sep 04, 2006 10:22 am
Car: 95 nissan 240

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Sorry..... Compression test numbers!!

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tek747
Posts: 114
Joined: Mon Sep 04, 2006 10:22 am
Car: 95 nissan 240

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Yes-sir!

Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

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there are too many variables to give a specific number. most times people do the test wrong and think something is wrong

with that being said, 145-170 is average.

but its more important that the numbers are close to each other, not high or low

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tek747
Posts: 114
Joined: Mon Sep 04, 2006 10:22 am
Car: 95 nissan 240

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Thank you SIR!! Its what i needed, just a round-about number'(s). 140 would probly be borderline crapped-out compression? 50/50 possibility of life?Thanks Kamin / Rustbucket

Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

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you need to make sure you are doing the test right first.

open the throttle all the way, remove ALL the spark plugs, disable the injectors.

then do it.


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