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September 10, 2003
IIRC the fraction you refer to is in fact the number of teeth on the pinion/crown.
Actually I was gong to ask about diffs any way. I have two for the frogeye (which has a later 1275 motor) the original one which IIRC is 4.55:1 and a riley 1.5 one which is a 3.7:1 diff. What would the effect of fitting the 3.7 diff to the frogeye have, as it stands its will rev straight through the red line and out the other side in top gear, even up hills speed at the red line is 80 ish with the 4.55. My main aim with this car is to make something a bit more civilized but still fun to drive. My guess is the 3.7 diff will make for more relaxed cruising, possibly a higher top speed but will it kill the acceleration?. As the car stands it takes off like a rocket, I can accept I will trade this off for better crusing by fitting the 3.7 but will it become slug like?
Stewart
"Ford Prefect" < f.prefect@... > 25145
Posted on September 10, 2003 11:54 PM
Posted to category(s) Drive Train | Engine (external) | Engine (internal) | Exterior | International | Miscellaneous | Tuning
