I found this after some searching:
http://www.bgsoflex.com/shifter.html
Cary
--- Ron Nottingham <nottingham@alltel.net> wrote:
> ----- Original Message -----
> From: <JD_Kemp@URSCorp.com>
>
>
> > Cary Alpert writes:
> > "Does anyone know the correct equation for
> determining
> > the best shift points?"
> >
> > Cary-
> >
> > Equation? Dump the clutch, stomp on it, exhale,
> shift to second. Iffen
> ya
> > do it right, the car will squirt sideways around
> the first cone. Hold 'er
> > in second until you can't stand the noise, then
> grab third. If ya run
> > outta rip-ems in third, call me. I wanna run that
> course!
> >
> > Peace, Love & Pushrods-
> > JD Kemp &
> > "Lucretia MacEvil" #13 MGB
> >
>
> JD,
> That might work with ol' British Rust, errrr, Iron
> :-) Rule of thumb is to
> shift 10% past the hp peak, for example, if your car
> has a hp peak at 4500,
> you would want to shift around 5000rpm, or redline,
> which ever is first.
> Now, the REAL way to determine shift points.... You
> need to know the torque
> or hp curve and gear ratios. Convert torque to hp,
> then multiply all hp
> points by the gear ratios, where the hp number is
> less at the higher rpm,
> than the lower rpm for the next gear is the time to
> shift.
>
> Ron N. - Dalton, GA
> former Brit Car Pilot (Triumphs!!!)
> looking for a TVR (maybe :-)
> 90 SHO
> 84 300zxt
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