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[TR] Euro or other taller differential needed

To: 6pack@autox.team.net, triumphs <triumphs@autox.team.net>
Subject: [TR] Euro or other taller differential needed
From: Jamie Palmer <tr6driver@earthlink.net>
Date: Tue, 28 Sep 2010 16:12:51 -0400 (GMT-04:00)
RiffRAF Racing is in need of a TR6 differential with a taller rear end ratio 
(i.e. numerically smaller) than the stock 3.7:1 US setup.  One possibility 
would be the 3.45:1 from a PI car.  We're open to other suggestions, but since 
our car is supposed to be worth no more than $500 by the rules, some of the 
more common (for example, the GoodParts conversions) are out of our reach.

Anyone got a Euro diff around?

The car is at max RPM way early on straights.  For example, we were at the rev 
limit for the entire front straight at Roebling Road, and were actually driving 
the entire course in 4th gear.  Even at Sebring last weekend, when our engine 
was entirely off song, we could hit max RPM really quickly.

An overdrive would push the car past the race series value limit, and while 
taller tires would help, they would also hurt the handling considerably (we're 
currently using 205/50-15 Falken RT615K's on stock wheels due to treadwear 
rules and wheel cost rules).

All suggestions are appreciated...thanks.

Jamie Palmer
RiffRAF Racing
1975 TR6 ChumpCar

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