In need of help urgently !

[JimX]

300 on a friendly dyno, 250-260 on others. Depends on where you go.

[Steve]

Originally posted by JimX

300 on a friendly dyno, 250-260 on others. Depends on where you go.

300 on a properly set up in shoot out mode dyno. The japanese run rb25s all day every day with 300rwkw on stock internals. I have this from several sources, not from publications, but from people I know who have lived in japan and are into performance cars.

In WA they have built a reliable 300rwkw rb25 on stock internals.

MattR off this forum has had the same power from a stock bottome end, without bottom end dramas.

JMS R33 runs well over that power on stock bottom end (up to 446rwkw in one instance)

Ben Ellis of HPI has run 295 rwkw with stock bottom end.

I have made 256 at 1 bar without even the slightest hint of detonation, even winding the boost up to 1.2bar still not a sign of detonation (just no traction, so I wound it down again)

Any engine if treated poorly can be destroyed, if you are sensible, dont bounce off the revlimiter for extended periods, monitor the knock sensor closely - not a problem.

Detonation tends to be the biggest enemy of most engines, by keeping it in check, 300rwkw is very realistic.