Dinan flywheel and differential mods - anyone?
10-23-2009, 04:38 PM
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Originally Posted by mhs525' post='1039207' date='Oct 23 2009, 05:33 PM
M5's (all M cars) come with an LSD, putting in a Dinan LSD is not going to make much difference. If you change the gears in one car but both cars have LSD's the shorter geared car will win a drag race every time.
The bang for the buck is taking a high horsepower non M car, like a 545/550, changing the gears and installing the LSD will dramatically change the car. The result is M car acceleration and driving dynamics without the super stiff suspension. Sort of like the Alpina approach to high performance road cars
The bang for the buck is taking a high horsepower non M car, like a 545/550, changing the gears and installing the LSD will dramatically change the car. The result is M car acceleration and driving dynamics without the super stiff suspension. Sort of like the Alpina approach to high performance road cars
10-23-2009, 05:25 PM
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Originally Posted by EuroCarFan' post='1039212' date='Oct 23 2009, 08:38 PM
The Dinan diff lowers the stock final drive from 3.62 to 3.91.
10-23-2009, 05:37 PM
#13
Originally Posted by mhs525' post='1039207' date='Oct 23 2009, 08:33 PM
M5's (all M cars) come with an LSD, putting in a Dinan LSD is not going to make much difference. If you change the gears in one car but both cars have LSD's the shorter geared car will win a drag race every time.
The bang for the buck is taking a high horsepower non M car, like a 545/550, changing the gears and installing the LSD will dramatically change the car. The result is M car acceleration and driving dynamics without the super stiff suspension. Sort of like the Alpina approach to high performance road cars
The bang for the buck is taking a high horsepower non M car, like a 545/550, changing the gears and installing the LSD will dramatically change the car. The result is M car acceleration and driving dynamics without the super stiff suspension. Sort of like the Alpina approach to high performance road cars
Re: the flywheel, Dinan claims that their modded flywheel still results in a quiet gearbox - have no clue whether that's true. I have heard of similar problems to your M3 issues with lightened flywheels. In most cases though I believe those examples are from installing lightened single-mass flywheels into cars that originally had heavier dual-mass. The Dinan flywheel is still heavier than a lightened single-mass (and likely to be as perfectly balanced as a stock unit), and so it's possible that gearbox noise is still acceptable.
10-23-2009, 08:02 PM
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Originally Posted by mhs525' post='1039223' date='Oct 23 2009, 09:25 PM
Then all other things being equal a 3.91 geared car is going to be faster than 3.62
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