In a message dated 01/08/00 10:37:12 AM Pacific Daylight Time,
owner-mgs-digest@autox.team.net writes:
> Reccomendations for valve springs? The cam has stock lift and duration,
> and I'm not planning on revving the engine very high. I've been warned
> against running over 5500 RPM for any length of time without a cross
> drilled crank. I'll take her up to 6000 or so for brief periods to
> save the stress of multiple shifts. Other than that, the engine is
> basically blueprinted, balanced, nitrided, forged pistons. Solid, but
> not set up for SCCA E Production.
>
With a stock cam you can use stock springs. I'm at work and don't have all my
material here, but I believe the stock valve bounce is about 6200 rpm or so.
The power peak on a stock engine is well below 6000, but you can run it to
6000 all day without needing a cross-drilled crank. 6500 is the frontier
beyond which stock cranks should not venture!
If you are using a stock gearbox, you will _need_ to use 6000, so that you
hit somewhere near the torque peak in the next gear.
Bill S.
PS - have fun!
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