[TheMidnightNarwhal]

Hey there

So I kind of just wanted to get more info and just understand.

I really love every aspect of the 435i just one thing, it missing LSD. Now this post is more for information because I have not had alot of experience with sports car, my other sporty car was a 2004 330ci.

I learned that you couldn't do donuts and drift really well without LSD. Ok I can handle that.

But from a aspect of tuning the car and keeping as yes a daily driver, but mainly as my only and fun car, an all in one all year car focused more on fun you could say, in the future or making more power than stock, am I losing out from not having a LSD on RWD car? Should I maybe get the AWD version then? Or a non LSD RWD car with a lot of power (subjective for some, but 400whp let's say) is still pretty fun to drive, you can drive hard in turns?

[TheMidnightNarwhal]

Originally Posted by alohasurftoad

Just buy a lsd

But why.

Do I need one? That's kind of the point of the post. Can you still enjoy a high hp car without one?

[Logicoeur]

Yes you can enjoy these cars without an lsd. The open diff makes it easier to not fuck up when you gun it in a turn, for example, or an off ramp. As the outside tire slips, the car just kind of rotates, aiding your maneuver, safely. An lsd would make it much more difficult, and thus more error prone for us daily drivers. These cars are already prone to getting us in trouble since they are so run to drive.


Unless you are tracking the car semioften I don't think the lsd is a must. Your full rwd should be fun enough. Even in xdrive I can whip the thing around. With an lsd I think it would implode though.


Drive fun, but do it safely

[NormanConquest]

Originally Posted by TheMidnightNarwhal

But why.

Do I need one? That's kind of the point of the post. Can you still enjoy a high hp car without one?

I purchase the LSD for better traction in the snow the combo of snow tirer and lsd was a night a day difference compare to the previous year of no lsd and all season run flats

[TheMidnightNarwhal]

Originally Posted by NormanConquest

I purchase the LSD for better traction in the snow the combo of snow tirer and lsd was a night a day difference compare to the previous year of no lsd and all season run flats

Ah ok, I do plan to use it in winter but winter tires are the main thing that do the dofference imo.

[Big Mexican Women]

it depends on how you drive. if you know how to corner properly and like to use throttle around corners, you will want an LSD. if you drive normally (enter corners at normal speed, don't power out the apex with throttle) then there is no need.

[floydarogers]

While not having a mechanical LSD, the so-called ediff (BMW speak is Automatic Differential Braking - ADB) keeps the traction going where it needs to go. But you don't want to spin too much and get so far into the traction control that the throttle shuts down power too much.

[bimmer456]

Next upgrade is LSD it brake kit for me. Would like to know how much difference it really makes though.

[TheMidnightNarwhal]

Originally Posted by Big Mexican Women

it depends on how you drive. if you know how to corner properly and like to use throttle around corners, you will want an LSD. if you drive normally (enter corners at normal speed, don't power out the apex with throttle) then there is no need.

But if you're getting a 435i... ofcourse you are going to take turn as fast as you can without crashing and hit those apex.

[TheMidnightNarwhal]

Originally Posted by floydarogers

While not having a mechanical LSD, the so-called ediff (BMW speak is Automatic Differential Braking - ADB) keeps the traction going where it needs to go. But you don't want to spin too much and get so far into the traction control that the throttle shuts down power too much.

Oh ok so there is still some level of like, sportiness. Like this lets you hit curves and turns at a sporty speed?

[Big Mexican Women]

Originally Posted by TheMidnightNarwhal

But if you're getting a 435i... ofcourse you are going to take turn as fast as you can without crashing and hit those apex.

unfortunately no, not every driver agrees with us..

[TheMidnightNarwhal]

Originally Posted by Big Mexican Women

unfortunately no, not every driver agrees with us..

But like so, stock is the 435i nice to drive quick in turns or because no LSD it's not doing it nicely?

Like at the moment I'm having somewhat fun driving a shitty 2006 Hyundai Tucson at it's limit in curves. It's a FWD SUV with no LSD lol. I'm suure a proper RWD german sports coupe will do it 10 times better even though without a LSD?

[BEAR-AvHistory]

Regular track day car yes. Required to drive quickly on the street no. Have 3 LSD cars, none are BMW's

[TheMidnightNarwhal]

Originally Posted by BEAR-AvHistory

Regular track day car yes. Required to drive quickly on the street no. Have 3 LSD cars, none are BMW's

Right. I don't see tracking the car. Just one time to try it out as a novelty thing maybe.

But driving quickly in a sport manner and on nice twisty roads definitely. Taking on other cars who wants to go at red light race also.

[Big Mexican Women]

Originally Posted by TheMidnightNarwhal

But like so, stock is the 435i nice to drive quick in turns or because no LSD it's not doing it nicely?

Like at the moment I'm having somewhat fun driving a shitty 2006 Hyundai Tucson at it's limit in curves. It's a FWD SUV with no LSD lol. I'm suure a proper RWD german sports coupe will do it 10 times better even though without a LSD?

of course, but the stock open differential on these cars is really shitty and it holds back the car alot from it's overall cornering potential. but, like the guy below me mentioned, unless you are really pushing your car hard, like to it's limits, it's not absolutely necessary.

Originally Posted by BEAR-AvHistory

Regular track day car yes. Required to drive quickly on the street no. Have 3 LSD cars, none are BMW's

I agree. unless you're turning your local streets into a track, theres no need although there are still benefits to be had if you drift, drive in the rain/snow, etc.

[TXDaddy]

I whip around many a corner without LSD and do just fine haulin plenty o ass. LSD are good for breaking loose your rear end, and would probably wreck more of the uninitiated than increase their enthusiast credo. Definitely fun doing donuts. They will help pulling your boat up a wet ramp too...

[XutvJet]

Originally Posted by Logicoeur

Yes you can enjoy these cars without an lsd. The open diff makes it easier to not fuck up when you gun it in a turn, for example, or an off ramp. As the outside tire slips, the car just kind of rotates, aiding your maneuver, safely. An lsd would make it much more difficult, and thus more error prone for us daily drivers. These cars are already prone to getting us in trouble since they are so run to drive.

Unless you are tracking the car semioften I don't think the lsd is a must. Your full rwd should be fun enough. Even in xdrive I can whip the thing around. With an lsd I think it would implode though.

Altough it's not a 435, I added the M Performance LSD to my M235 after 27 months of ownership. Prior to the LSD, I drove around in DSC Off and found the car very easy to coax into off and on throttle oversteer. I could get the end to swing wide and hold it fairly well but I did find the rear end rather loose and could break loose rather essily. I also found that traction in 1st and 2nd to be pretty compromised and thought it was largely the result of the 245 width MPSS rear tires.

I then added the LSD. Holy. Hell. Different car. It feels like I added 500lbs to the rear axle. The rear end feels immensely more stable even in 4/10s driving on the street. I have a ton more faith in what the car is doing and what it will do when the back end breaks loose. Oversteer is easily controlled by throttle. It's so different. There's a ton more traction in 1st and 2nd that the car actually feels slower because there's less spin. Lean on the throttle in a turn and the front end immediately starts pulling itself into the turn.

I've had other cars with lower quality LSDs but I've never had a car where the LSD was so apparent and controllable. You really can feel it working. You pay a pretty penny for the LSD in these cars but it's built by Drexler who is one of the premier LSD builders in the world. If you really are in tune with your car and love to drive, you've got to get the LSD.

[eluded]

I find the opened diff makes doing burnouts and donuts super easy Not to mention when you're in a corner it keeps you on your toes.

[enjoythemusic]

Originally Posted by TheMidnightNarwhal

But if you're getting a 435i... ofcourse you are going to take turn as fast as you can without crashing and hit those apex.

Imho once you up the power to 400 or more you really need an LSD. This is for anyone.

If you're a true driving enthusiast, LSD with fun driving go hand-in-hand. Better still, more power AND an M LSD....

Brake, rotate car... power out of apex...

[TheMidnightNarwhal]

Ok thanks for the replies. I'm sure I will still have fun with the car without one.

[Big Mexican Women]

Originally Posted by TXDaddy

I whip around many a corner without LSD and do just fine haulin plenty o ass. LSD are good for breaking loose your rear end, and would probably wreck more of the uninitiated than increase their enthusiast credo. Definitely fun doing donuts. They will help pulling your boat up a wet ramp too...

you're only saying that because you have yet to experience your car with a proper LSD...

a LSD slip does NOT make it easier to drift. it makes the rear end smoother and more stable and grip increases. it makes it MORE difficult to let the rear-end loose.

Originally Posted by eluded

I find the opened diff makes doing burnouts and donuts super easy Not to mention when you're in a corner it keeps you on your toes.

burnouts? yea, no not really. the open diffs in these cars is shit.

[Humdizzle]

for daily driving and 99% of 3/4-series buyers its not needed. with an open diff the engine is sending power to the wheel with the LEAST grip, which will spin up the inside wheel when you are turning and applying full throttle, which means nice safe understeer for the general public.

with an LSD you are sending power to the wheel with the MOST grip. the outside wheel when you are turning.. resulting in nice progressive oversteer

its pretty sad that my FRS had a locking diff and yet bmw can't fit one to a 300+hp car with an M sport badge.