Can we change trans gearing?

ChitownM3 · 05-02-2010, 12:34 PM

Quick question, is it possible to change the trans gears in this car? The reason I ask, is because I HATE third gear. Our cars get trounced in 3rd gear on the highway every single time. I feel that going to 110mph in 3rd is way too long, and would like a gear that would take the car to a max of 95mph in 3rd. I don't want to change out the rear end because I believe 1st, 2nd and 4th gear are all pefectly geared.

elmariachi · 05-02-2010, 12:38 PM

Doubt it. Closest I think you can do is to change your final drive.

saeedg48 · 05-02-2010, 12:41 PM

seriously a tune would help make 3rd gear more punchy but idk about completely changing redline.

ChitownM3 · 05-02-2010, 06:34 PM

Quote:

Originally Posted by saeedg48

seriously a tune would help make 3rd gear more punchy but idk about completely changing redline.

Car has a tune, exhaust, pulley and filter. Doesn't change the fact that 3rd gear is still a dog due to the fact of how long it is.

J08M3 · 05-02-2010, 07:18 PM

Quote:

Originally Posted by ChitownM3

Car has a tune, exhaust, pulley and filter. Doesn't change the fact that 3rd gear is still a dog due to the fact of how long it is.

change the rear diff gears.... much easier and will probably get you the change you're looking for

ersin · 05-02-2010, 08:30 PM

Quote:

Originally Posted by J08M3

change the rear diff gears.... much easier and will probably get you the change you're looking for

+1. I've never heard of anyone changing just one gear ratio, but can't say for sure. I think you'd have to replace the whole transmission.

I don't know of any E9x M3 with a different final ratio other than PencilGeeks. But in other cars it is a difference that you can most assuredly feel. And you benefit in every gear. You may lose a little mpg if you go really radical, but the M3 already sucks in this regard. I think you can keep your BMW trick M3 LSD and just swap the gears. Check with Dinan. And I'd try a 4.10 if I were you.

Cheers.

05-02-2010, 12:34 PM	#1
ChitownM3 Lieutenant Drives: 2001 SS Camaro Join Date: Jun 2007 Location: Burbs of Chicago Posts: 489 iTrader: (0)	Can we change trans gearing? Quick question, is it possible to change the trans gears in this car? The reason I ask, is because I HATE third gear. Our cars get trounced in 3rd gear on the highway every single time. I feel that going to 110mph in 3rd is way too long, and would like a gear that would take the car to a max of 95mph in 3rd. I don't want to change out the rear end because I believe 1st, 2nd and 4th gear are all pefectly geared.
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05-02-2010, 12:38 PM	#2
elmariachi Major Drives: BMW ///M Division Join Date: Jan 2007 Location: Singapore Posts: 1,303 iTrader: (1)	Doubt it. Closest I think you can do is to change your final drive. __________________ 2008 E92 ///M3 Alpine White M-DCT\| Novillo-Black Interior\| Carbon Fibre Roof\| Premium Sound System\| EDC\| 19's Advan RS w/ Michelin PS2 Cups\| iPod\| GruppeM Air Intake\| GruppeM Steel Braided Lines\|Ferodo DS2500 Pads\| Akrapovic Full Header-Back Titanium Exhaust\| 6000K Philips D1S\| 3M Tints\|

05-02-2010, 12:41 PM	#3
saeedg48 Brigadier General Drives: 2008 6MT E90 M3 & 2012 CLS63 P Join Date: Nov 2008 Location: Unknown Posts: 3,354 iTrader: (1)	seriously a tune would help make 3rd gear more punchy but idk about completely changing redline. __________________ _______________

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