Rb25

[slidwayz31]

hey all this is prob a bit of a noob question and im prob not puttin this in the right place but anyway im lookin at buyin a 25 for my 31 and i was wonderin if there is anything inpeticular to look out for when buyin a 25. cheers

[Krishy]

Get it compression tested

that would be one way of find out a few problems

when i had mine compression tested i got told it was 175 all across the board give and take 2

check the turbo for shaft play

check for any visual damages

thats all i can tell ya mate....sorry if i wasnt much of a help

[Madaz]

have you got a R34 engine there Krishy i thought R33's were 150ps at least thats what mine was and mechanic aka boostworx said that was all good

[Sambo33]

ringlands are a big factor on the rb25, i had all 6 gone on mine, apparently from a bad tune before i unknowingly bought it.

definately get a compression and leak down test

[Ryanrb25]

Good conversion my friend...if you need any help with it dont be affraid to ask....owned the first 31 in sa with a rb25det in it for around 5 years....best conversion for the 31.

as for rb25det's, not too much can go wrong with them, hard to tell if anything major is wrong with it if its just sitting there... If you can hear it running thats good. Ringlands are only a problem with detonation and bad tunes as mentioned above.

Edited August 25, 2008 by Ryanrb25

[Sambo33]

yeah good point Ryan, generally they are tough as motors, just let down by mistreatment.

the funny thing with mine was it started/idled fine, could handle full loading in 1st and 2nd fine, but in 3rd and 4th under full load would create huge smoke clouds and fill a catch can up with ease

[Ryanrb25]

yea lol that'll do it...

generally over time it takes a fairly rat shit tune to create such a blunder....Depending on the history of the motor (all relatively fine) and a decent tune done by someone with at least 4 fingers per hand should be fine for years.