2011 BMW 128i BIGGEST Competitor is.........

[BForbes]

Originally Posted by MrRoboto

I could be wrong here but I think the 430 Scuderia performs pretty well.

I just gave three examples.

Okay, I will concede that there are very few exceptions to the rule. The e-Diff in the Ferrari 430 Scuderia is one of those occasions. It does not suffer from the same problems the 135i has. It was designed to put down 40percent more power out of corners where as the 1er seems geared towards safety. There is a reason that the vast majority of sports cars offer a proper LSD versus nothing at all. I can't see the trend of moving to electronic LSD's anytime soon.

[jmunro]

Originally Posted by Monterra

I agree the 128 should be bumped up to 265 but they won't because that would be too close to the 135- more so that than ED- I think its nearly as efficient as the 230 tuned N52.
Here's what I think the NA 1er line should look like and this is very optimistic too:

120d- 177hp ~26k
128i- 255hp ~31 (moves up in price and performance to make "room" for 120d, std xenons)
135i- 310hp ~36
M1 coupe- 370hp ~45

265hp for the 128i would be fine if they stop with the silly "S" sports thing and just make the next gen "135i" 320-330hp

[MrRoboto]

Originally Posted by BForbes

I can't see the trend of moving to electronic LSD's anytime soon.

They said the same thing before electronic dual clutch gearboxes I suspect. An 'automatic' 911...never.

[imported_mega]

Originally Posted by MrRoboto

They said the same thing before electronic dual clutch gearboxes I suspect. An 'automatic' 911...never.

yeah but the lsd is a bit different, mechanical are very simple, small, reliable and cheap. It's not something you interact with, like a transmission is

[MrRoboto]

Originally Posted by imported_mega

yeah but the lsd is a bit different, mechanical are very simple, small, reliable and cheap. It's not something you interact with, like a transmission is

Manual gearbox - mechanical, simple, reliable, and cheap.

[southlight]

Originally Posted by MrRoboto

Lots of sports cars don't have mechanical LSDs including the F430 I believe, Cayman, and recently made optional on the 911.

The F430 does have a mechanical LSD. The term 'E-Diff' is somewhat misleading. What they mean is that the multi-disc clutch packs in the diff are operated via hydraulic actuators, which in turn are operated via electronics. That's not comparable to the e-diff BMW is using as a feature of DSC+. There are some disadvantages coming with an open diff an electronic, brake-applying LSD can't overcome.

Originally Posted by BForbes

I can't see the trend of moving to electronic LSD's anytime soon.

The next step would be DPC or torque vectoring like found in the X6. This system is similar to the above mentioned E-Diff Ferrari is using. Audi seems to be rather successful with their torque vectoring diff in the S4 and I expect BMW to follow in more cars of their lineup.


Best regards,
south

[MrRoboto]

Originally Posted by southlight

The F430 does have a mechanical LSD. The term 'E-Diff' is somewhat misleading. What they mean is that the multi-disc clutch packs in the diff are operated via hydraulic actuators, which in turn are operated via electronics. That's not comparable to the e-diff BMW is using as a feature of DSC+. There are some disadvantages coming with an open diff an electronic, brake-applying LSD can't overcome.


The next step would be DPC or torque vectoring like found in the X6. This system is similar to the above mentioned E-Diff Ferrari is using. Audi seems to be rather successful with their torque vectoring diff in the S4 and I expect BMW to follow in more cars of their lineup.


Best regards,
south

Thanks for the clarification south.

[BForbes]

Originally Posted by southlight

The F430 does have a mechanical LSD. The term 'E-Diff' is somewhat misleading. What they mean is that the multi-disc clutch packs in the diff are operated via hydraulic actuators, which in turn are operated via electronics. That's not comparable to the e-diff BMW is using as a feature of DSC+. There are some disadvantages coming with an open diff an electronic, brake-applying LSD can't overcome.


The next step would be DPC or torque vectoring like found in the X6. This system is similar to the above mentioned E-Diff Ferrari is using. Audi seems to be rather successful with their torque vectoring diff in the S4 and I expect BMW to follow in more cars of their lineup.


Best regards,
south