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      12-31-2008, 11:28 AM   #1
doba_s
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Arrow Video OEM 3.15 diff (differential) vs Dinan's 3.62 at 80mph

I made a short video to compare RPMs Stock vs 3.62 Dinan differential on M-DCT car. A you can see the difference is not that big, it is only about ~350-400rpms


Stock 3.15





Dinan 3.62









Last edited by doba_s; 01-01-2009 at 04:03 PM.
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      12-31-2008, 11:40 AM   #2
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So how is the accel, etc, etc, etc.?
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      12-31-2008, 03:04 PM   #3
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Quote:
Originally Posted by GT3 Tim View Post
So how is the accel, etc, etc, etc.?
the acceleration is very impressive ! Day and Night compare to stock final drive. I am still breaking in my car and new diff, so i'll share more information later
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      12-31-2008, 03:12 PM   #4
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      12-31-2008, 03:36 PM   #5
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Nice job aleks!
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      12-31-2008, 03:45 PM   #6
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what are the break in limitations on the new diff?
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      12-31-2008, 03:55 PM   #7
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Quote:
Originally Posted by JuniorDee View Post
what are the break in limitations on the new diff?
no high revs and high speed driving for a long time for 1200 miles ... then you need to change diff oil and you are ready to go.
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      12-31-2008, 06:09 PM   #8
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Very nice! Congratulations.
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      12-31-2008, 06:12 PM   #9
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so is this a good thing, guess you will be getting even lower mpg's?
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      12-31-2008, 06:16 PM   #10
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Quote:
Originally Posted by buschy View Post
so is this a good thing, guess you will be getting even lower mpg's?
how would he get lower MPG's?!
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      12-31-2008, 06:30 PM   #11
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Quote:
Originally Posted by ///Mantis View Post
how would he get lower MPG's?!
if the engine is turning faster to go the same speed does it not use more gas therefore get lower mpgs? im not being funny i am seriously asking?????
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      12-31-2008, 06:35 PM   #12
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Quote:
Originally Posted by doba_s View Post
the acceleration is very impressive ! Day and Night compare to stock final drive. I am still breaking in my car and new diff, so i'll share more information later
Wow! Nice to hear that. Is there anything that can be done to the 6MT?
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      12-31-2008, 11:22 PM   #13
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Did you have any issues with the diff housing as per http://www.m3post.com/forums/showpos...0&postcount=18
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      01-01-2009, 02:01 AM   #14
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Now that is a mod worth doing. With an exhaust, chip and 3.62 diff, its bye bye c63
Change brake pads to track spec and tires to Bridgestone RE11s and nothing short of a GT3 or GTR will be able to keep up
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      01-01-2009, 05:58 AM   #15
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One of the best mods to do.
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      01-01-2009, 12:14 PM   #16
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Quote:
Originally Posted by BMW-M-Mexico View Post
Wow! Nice to hear that. Is there anything that can be done to the 6MT?
I am not sure what to tell you but Dinan has 4.10 FD for the MT cars

Last edited by doba_s; 01-06-2009 at 12:57 AM.
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      01-01-2009, 12:15 PM   #17
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Quote:
Originally Posted by mixja View Post
Did you have any issues with the diff housing as per http://www.m3post.com/forums/showpos...0&postcount=18
Yes, he was right ... you must change the differential cover ... in my case it was OEM cover from 6MT which is for some reason a bit deeper than DCT covers and it clears 3.62 final drive without any problems.

Last edited by doba_s; 01-06-2009 at 12:59 AM.
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      01-01-2009, 12:15 PM   #18
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Quote:
Originally Posted by Doc View Post
Now that is a mod worth doing. With an exhaust, chip and 3.62 diff, its bye bye c63
Change brake pads to track spec and tires to Bridgestone RE11s and nothing short of a GT3 or GTR will be able to keep up
those will be her next year gifts
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      01-01-2009, 03:43 PM   #19
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Nice, well done
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      01-01-2009, 06:59 PM   #20
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Nice, well done
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      01-01-2009, 08:03 PM   #21
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Quote:
Originally Posted by sparkyg View Post
Nice, well done
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      01-02-2009, 04:13 AM   #22
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