Dave, Aparently applies to my small AA "509" had a AT 400 3 spd in Skips car :
best 1/4 242
best mile 269.8
best exit 272.1
In Skips car we were basically done by the 3 3/4--with 30" tires and a 2.50
RA--we needed more power and more gears as I see it.
I will be using it in front of a PG with a GV OD which makes it a 4 spd
>
> From: Dave Dahlgren <ddahlgren@snet.net>
> Date: 2003/08/26 Tue AM 05:53:07 CDT
> To: James Tone <gmc6power@earthlink.net>
> CC: Land Speed List <land-speed@autox.team.net>
> Subject: Re: Bonneville 2003
>
> I think it might have to do with the engine you select and the torque curve
>that
> it has. An inline six is 'torquey' by design that is why you find them in
> trucks. the nitro has more to offer at low revs than high.. A 90 degree v-8
>with
> peak torque at 7000 has to have a transmission to stay in the torque range of
> the engine. Maybe you were shifting the trans you had at too high an rpm?? If
> you send a dyno sheet and some basic dimensions of the car i would be glad to
> run the numbers and see how many speeds are appropriate and what shift points
> would provide the best results.. If your exit speed is over the 4-5 mile
>average
> by more than a mile per hour or you have not reached peak rpm you still have
> something to gain with a transmission. From what I have found with a small
> engine car you need to get between 85 to 90% of the terminal speed by the 2
>1/4
> mile trap in order to get all the speed the car has to offer...
> Dave Dahlgren
>
> James Tone wrote:
> >
> > I just need to know why all you guys need transmissions with more than high
> > gear? From the 2nd Tone with a red hat!!!!!! (Too old to shift but not
>too
> > old to drive) J.D. ps. next year 80% and just 2 speeds
>
>
"Sparky"
Lakester 2211
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