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I wouldnt be too fussed with the head gasket unless your planning on running more than 8psi, then you will need to.

8psi are you f**ken serious!!!!!!!!

Yea i am really bothering to pull out my RB20DET and putting an Rb25DE and turboing it to be running it at only 8 psi!

YEA RIIIIGHT

:)

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8psi are you f**ken serious!!!!!!!!

Yea i am really bothering to pull out my RB20DET and putting an Rb25DE and turboing it to be running it at only 8 psi!

YEA RIIIIGHT

:thumbsup:

Calm down mate, you didnt state your intentions very well therefore I didnt know what sort of boost you were running. Im turboing mine next week, will be running 7psi on stock compression. So ill soon let you know how long it lasts, and from what I have heard and seen, it should last me a few years yet

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rb_turbo_bitch, juddier31 and slimvlt are actually sorta right...

http://www.skylinesaustralia.com/forums/in...c=33407&hl=

have a read of that thread and come to your own conclusions.

p.s - unless you already have a spare rb25de lying around, i cant see why you would go to so much trouble.

each to their own, read DAN666's thread

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we will c how long it runs for then.

8 psi and about 10-1 compresion

Hence why she is using a thicker head gasket to lower the compression. All u backyard mechanics tell me why my engine has lasted so long at almost 11:1 compression at 11pound of boost and the only time the car is driven it is cained... Now please... everybody take a step back if u dont have hard facts and havent done it yourself dont be so quick to critisise.

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  • 2 weeks later...

Ugh I'm sick of your N/A + boost knowledge John, it's so common sense and practically based :(

Come on people if you need to know anything about boosting N/A's ask John or myself, we're there to help in such a taboo subject.

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mate i have done this before and most ppl dont do it well and set there sxpectations to high.

ive used decomp plates/copper head gaskets ect in rb30 engines for years with great sucsess but you always get reports of ppl who get it wrong.

ive used a dead stock n/a rb30 with a 2mm copper gasket (no orings)

cramed alot of boost in to it (ran 28 at hethcote)

made 253 rwkw on 18 psi. it all comes down to the tune and what most ppl do is use the stock parts that dont like it real well (ecu)

so if they scimp or dont get a pigy back then pumping abit of boost in will result in a meltdown and a nother statistic to the list.

so yea i beleive i know what im tlking about.

Edited by SLIMVLT
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