[Fot] Gearing question for Lime Rock

[Ponostyle]

Who on earth would say that fiddly little track is high speed. I think I got into 4th with Peyote once for about 4 seconds. Watkins Glen, Road America, even Portland International and Pacific Raceways—yes. Limerock???

> On Jun 2, 2025, at 7:14 PM, Joe Boruch via Fot <fot at autox.team.net> wrote:
> 
> I have used a 4.3 at LRP for years in my TR3.  I have a 7300 redline and a 5 spd transmission with a .81 5th gear.  Only use 5th on the main straight.  Back in the late 70's many of the TR3/4 racers would use a 4.54 diff with the TR OD trans.  
> JoeB
> 
> On Monday, June 2, 2025 at 12:58:04 PM EDT, Dave Riddle via Fot <fot at autox.team.net> wrote:
> 
> 
> Lime Rock is a high speed Track so does the collective FOT wisdom think a 3.7 or 4.1 rear end would be best in a TR4?
> 
>  
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