It's not just the power to weight ratios, but also all the compromises
you're living with in the engines and transmissions of the two cars.
Assuming both have four speeds, if you have a close ratio box in one car
and a wider ratio set in the other you'll be making different compromises.
You might be able to keep the engine well in the powerband for most shifts
with a tall rear end if you have CR, but you'd be waiting for revs to
build after an upshift with a WR. It's much more a function of engine
peakiness (and rev limits) and the track, the length of it's straights,
and how its curves work than power to weight.
-----Original Message-----
From: Susan Hensley
To: fot@autox.team.net
Sent: 2/19/2002 5:42 AM
Subject: Differential ratio question
Hi all!
I was thinking about this the other day, and was wondering -- would it
make any difference on a specific track to have the same rear end ratio
in different cars? Say a TR4 and a Spitfire (Tristan weighs about 1500
lbs and a race-prepped TR4 must weigh a decent bit more)? Would the
differences in power and weight between those two cars make any
difference in the performance of the rear end on that specific track?
Would it make sense for best results on that specific track to have a
differently-geared rear end in each car (using only available diff
ratios)?
This is probably a real newbie question, but it got me to wondering...
Speaking of diff ratios -- what diff would you guys recommend for
Mid-Ohio?
Thanks!
Keep Triumphing,
Susan :)
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