Maybe we should set the rev limiter to 6,500 for the long straight into turn 1
and go with the 3:89. It does like to rev with the lightened flywheel. I would
think the lower gears would be easier on the new motor also.
Tire diameter is approx 21 1/2".
Sent from my iPhone
> On Aug 28, 2016, at 9:36 AM, Barr, Scott <sbarr@McCarty-Law.com> wrote:
>
> Which tires? Roughly 22" diameter? I generally used a 3.89 there, but it's
> an awful lot of revs for a long time if you have no overdrive. I tried a
> 3.27 once, but the Spit didin't have enough grunt to pull that gear, and I
> was drag-limited to about 88 mph. Not ideal either. Maybe the GT6's
> additional torque would make the 3.27 gear work just fine.
>
> I will try to remember to send you a gear calculation spreadsheet which I
> have on my computer at work...
>
> Scott (B.)
>
>
>
> Sent from my Verizon, Samsung Galaxy smartphone
>
>
>
> -------- Original message --------
> From: David Amys <damys@charter.net>
> Date: 8/27/16 10:26 PM (GMT-06:00)
> To: fot@autox.team.net
> Subject: [Fot] Diff ratio for Road America
>
> -------- Original message --------
> From: David Amys <damys@charter.net>
> Date: 8/27/16 10:26 PM (GMT-06:00)
> To: fot@autox.team.net
> Subject: [Fot] Diff ratio for Road America
>
> Need advice on which diff to run at Elkhart. Our first time out. GT6 with
> mild motor. We have two diffs. 3:89 welded and 3:26 stock rebuild. Rev
> limiter set at 6,000.
> Thanks
> Dave and Alex
>
>
> Sent from my iPhone
> _______________________________________________
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>
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