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<div dir="ltr" data-setdir="false">Hi Mike. I won The June Sprints at Road America in 1989 and 1991 with my TR-4. I used a 4.3 rear end gear and a close ratio (Dolomite) gearbox with overdrive. Same set-up I used at Road Atlanta for The Runoffs. The 4.3 gives a good gear for the tight corners (turn 5 and Canada corner) and the overdrive gave me plenty of top end. Of course my red line was a little higher than yours (7.000) so you might have to adjust accordingly. Good luck.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Jack<br></div><div><br></div>
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On Thursday, March 2, 2023 at 03:49:31 AM EST, Michael Deweerd via Fot <fot@autox.team.net> wrote:
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<div><div id="ydpf978ec8byiv9958688586"><div dir="ltr">Amici, For the kastner cup Race at Road America what would be the ideal rear end ratio for a TR4? Last time (2013) it seemed I could have used a lower ratio?<div>Would a 3.50 be the better choice over the 4.10 I have in the car now?<br clear="all"><div>I Redline at 6000 RPM. </div>-- <br><div dir="ltr" class="ydpf978ec8byiv9958688586gmail_signature"><div dir="ltr"><i><font face="comic sans ms, sans-serif">Mike Deweerd</font></i></div></div></div></div>
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