Video OEM 3.15 diff (differential) vs Dinan's 3.62 at 80mph

[doba_s]

Originally Posted by PrinceSmooth

what happens to your old diff? ***subscribed***

Dinan kept it

[doba_s]

Originally Posted by buschy

so is this a good thing, guess you will be getting even lower mpg's?

Originally Posted by d_dot

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?????

theoretically you are right ... the mpg should get worth, but i was driving last week and to my surprise i was still getting 14.7-15.5 mpg on the freeway ! not sure what to say, but in any case if you are looking to save on gas then this is not the right car for you. You can't have both fast car and great gas mileage !

[gemini330zhp]

Originally Posted by BMW-M-Mexico

Wow! Nice to hear that. Is there anything that can be done to the 6MT?

4.10 Limited Slip Differential - Manual
Dinan lowers the stock 3.85 final drive ratio to a 4.10, taking full advantage of torque multiplication for a substantial 6.5% increase in torque delivered to the road. The improved acceleration comes with only a minor increase in engine speeds at cruise and no effective reduction in top speed potential. The Dinan 4.10 Limited Slip Differential delivers what is perhaps the greatest bang for the buck in terms of improved and more immediate acceleration from the M3.

Part # D773-0900
Labor Hours 4.7
Price $2699.00
Point Value 2
Special Notes Sold on an exchange basis; $1800 refundable core deposit.
Required Products BMW Synthetic Differential Fluid, part #83 22 2 282 583

[AMJ_77]

This looks too tempting, I think I am going to pick one up very soon and get the 15% off deal. Sparkg you with me? I am going to call Calgary tomorrow! After that I just wait for the software to become available and game over! Won't touch another thing...sure...

[doba_s]

you guys won't regret by going with either 4.10 or 3.62 or 3.45 trust me ... the car became more alive and feels faster ...

[mvagusta]

2600 out the door ??? Installed too???I'd do this before wheel's..

[KonigsTiger]

Originally Posted by gemini330zhp

4.10 Limited Slip Differential - Manual
Dinan lowers the stock 3.85 final drive ratio to a 4.10, taking full advantage of torque multiplication for a substantial 6.5% increase in torque delivered to the road. The improved acceleration comes with only a minor increase in engine speeds at cruise and no effective reduction in top speed potential. The Dinan 4.10 Limited Slip Differential delivers what is perhaps the greatest bang for the buck in terms of improved and more immediate acceleration from the M3.

Part # D773-0900
Labor Hours 4.7
Price $2699.00
Point Value 2
Special Notes Sold on an exchange basis; $1800 refundable core deposit.
Required Products BMW Synthetic Differential Fluid, part #83 22 2 282 583

How do you guys think this would work out with my stroker kit. Would it yield only more improvement? I think the answer is yes.

[eagletangogreen]

Originally Posted by BMW-M-Mexico

Wow! Nice to hear that. Is there anything that can be done to the 6MT?

Yeah get bigger tires! Thats what I did and my gears are a bit longer now..

[eagletangogreen]

Originally Posted by BMW-M-Mexico

How do you guys think this would work out with my stroker kit. Would it yield only more improvement? I think the answer is yes.

The more power you have the longer the gears you want>> If you where to put this in your stroker Your first and second gear would be useless>>

[pepper]

^ so is this a no no for the SC kits coming out?

[JMD0977]

Originally Posted by BMW-M-Mexico

How do you guys think this would work out with my stroker kit. Would it yield only more improvement? I think the answer is yes.

It would be good only if in addition of the gears , you also get the 3 disk carrier and variable ramps (30/90). DiffsOnline did mine w/ 3.62(dct) makes a difference like night and day how the diff locks.Also, wide tires like 305's in the rear since we'll be at 520+HP will help.

[doba_s]

Originally Posted by JMD0977

It would be good only if in addition of the gears , you also get the 3 disk carrier and variable ramps (30/90). DiffsOnline did mine w/ 3.62(dct) makes a difference like night and day how the diff locks.Also, wide tires like 305's in the rear since we'll be at 520+HP will help.

yeah, I agree ...+ wider tires are the big plus when you have 520hp under the hood ...

[mixja]

doba_s - once broken in I'm curious as to whether the DCT will have any traction issues on low gear changes at 10/10 and how this will affect the car in terms of DSC/DTC intervention and stability, given the 15% increase in torque to the wheels....

I'm guessing 1st gear also will be a bit hairy, I can imagine the car will break traction a lot more readily on full throttle from rolling/part throttle at low speeds...I'm just concerned if it will be at a point where it is annoying...

[doba_s]

Originally Posted by mixja

doba_s - once broken in I'm curious as to whether the DCT will have any traction issues on low gear changes at 10/10 and how this will affect the car in terms of DSC/DTC intervention and stability, given the 15% increase in torque to the wheels....

I'm guessing 1st gear also will be a bit hairy, I can imagine the car will break traction a lot more readily on full throttle from rolling/part throttle at low speeds...I'm just concerned if it will be at a point where it is annoying...

I will let you know ... but with 20" wheels we are looking for 10-11% increase ... With my 18" it will be 15%.

[sparkyg]

Originally Posted by AMJ_77

This looks too tempting, I think I am going to pick one up very soon and get the 15% off deal. Sparkg you with me? I am going to call Calgary tomorrow! After that I just wait for the software to become available and game over! Won't touch another thing...sure...

Yeah, I am prob gonna do the 6MT 4.10 in the spring at Calgary and add the Dinan software too that should be out soon.

Gotta check on the discounts, see when they end.

What did Calg BMW say?

[doba_s]

Originally Posted by sparkyg

Yeah, I am prob gonna do the 6MT 4.10 in the spring at Calgary and add the Dinan software too that should be out soon.

Gotta check on the discounts, see when they end.

What did Calg BMW say?

I think the rebate ends in February ... Do it now, you won't regret