How Much Power Is Tooooo Much?

[DjeMz]

Hey all

how much boost and how many kws of power can a rb25det take (obviously depending on driving style, but generally...)?

my rb is pushing 230-240 at the wheels on 20psi (very rarely on max boost) im just worried the internals are gonna kark it...

Should i be heaps concerned about making more then 250 on stock internals or can the pistons n stuff take more?

Cheers

Edited February 11, 2007 by DjeMz

[bLaQ.bOi]

duuude its got hektic flutters bro

[DjeMz]

hahahahah no thanks to u

[SECURITY]

with a good tune rb25's can take up to 280-290 fairly comfortably. ive seen some go higher than that but personally thats where id draw the line.

[R31Nismoid]

As above

There are many topics on this.

Its each to their own. You can make over 300rwkw, but most people dont have it that way daily, and to my knowledge the others have have not, all died at some point

[sinistaGTR]

yeh mine made 254 and went bang after 3 months but that was due to bad tuning aswell but....i know theres a dude here in sa making over 300 on the stock internals and has done for a while

[nisskid]

since when the f**k did u have a RB25 R32?

[n0nac]

i have a mate who has a rb25 runnin 280rwkw... bigger turbo blah blah but yeah its not showing any signs of dying any time soon...

[r3240sx]

i have a mate who has a rb25 runnin 280rwkw... bigger turbo blah blah but yeah its not showing any signs of dying any time soon...

Theres a guy here in the states who had an rb25 with 595 rwhp in his Z car.

Keyword *had* the internals held up for a while.. But man, thats pushing it... Thats a ton of horsepower even WITH a good tune.

[R3LOAD]

yeh mine made 254 and went bang after 3 months but that was due to bad tuning aswell but....i know theres a dude here in sa making over 300 on the stock internals and has done for a while

Over 300rwkw on stock internals?! That must be an amazingly good tune...

[BHDave]

Over 300 on stock internals isn't uncommon. It's just uncommon to see them last more than 6 months.

[n0nac]

hahahha

well the 25 is in a s13 silvia... and std computer, std injectors.. standard everything except for GTR pump... lol

i didnt believe it untill i seen the dyno read out...

neways he is building another motor with gtr rods n pistions...

neways he knows what he wants

[Kaido_RR]

i have 251kw @ 16psi now for along time no problems.

friend had less than that i think 240 or 230kw @ 16psi too and he just pop cylinder #5

[ossie_21]

I had 350hp for ages before a hole ended up in piston 1, but that was down to either injector failure or a crank angle sensor problem I had. A mate has 410hp on his & thats still going, but it would probably go if he kept it on full boost for a while.

[Lazy-Bastard]

20psi to make 230 - 240kw = you chose the wrong turbo or your tuner is shit.

I have heard that anything over 18psi is asking for a shortened lifespan on stock internals

[GT-PASSAGE]

I have over 300rwkws with stock internals I have been thrashing it now for 18months no signs yet. If and when it does I'll have an excuse to rebuild it.

Go the mighty 25!

[Ryanrb25]

impressive gt-passage.

so in theory a bigger turbo with less boost is safer than a smaller turbo with more psi making the same power? sure it will be a bit laggier but will be safer for standard internaled rb25? is this a valid theory? common knowledge?

[smurf80]

since when the f**k did u have a RB25 R32?

Hahaha Gold! Must of traded up on the LTD gas V8.

[nisskid]

^^

[lingeringsoul]

How much power is too much???? simple

when you wrap yourself around a tree