i suspect that the euro may have a taller rear end gear ratio.

you can check it by jacking up one side of the car and spinning the wheel one full turn. count the revolutions of the driveshaft and multiply by two to get the gear ratio.

be sure the car is in neutral for this test.

report back. we are curious.

good luck

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.