View Single Post
beepbeep beepbeep is offline
Registered User
 
beepbeep's Avatar
 
Join Date: Jun 2001
Location: Sweden
Posts: 5,515
Hmm...as far as I know, 930's have exactly same sort of weak rod bolts as early Carrera's. Fortunately, 930 rod bolt failure seem to be much less common, which I personally attribute to 930 low-revin nature and the fact that you don't need to rev the pi$$ out of motor to get somewhere.

That being said, with stock cams power tops at 5500 RPM and it just goes downhill from there. Only reason to rev beyond it is in order to drop into better range on next upshift and thus broaden the "area under powercurve" to maximize accelleration.

It might be a way to wring out some more performance from a 4-speed box but I woudn't rev it more than 6000, maybe 6200 RPM's. Remember, rod loading is not linear with revs but with RPM^2. Bump it into rev-limiter one time too many and those rod bolts will stretch and lead to problems later on.
__________________
Thank you for your time,
Old 03-16-2008, 10:35 AM
  Pelican Parts Technical Article Directory    Reply With Quote #25 (permalink)