[pz619]

In cooler weather I can chirp third pretty easily in MDM, but it's not like it's out of control wheelspin. Recommend a few things for consideration.

Stickier tires with perhaps 10mm wider
Have alignment check, although based on your tire wear things look ok
Validate Tire Pressure with an external gauge just to be sure iDrive isn't misrepresenting a number (sounds like you might have already done this)

Good luck!

[aguy]

I have a hard time breaking the tires loose without trying but the second I hit pavement that doesn't see rain such as a underpass the tires love to spin. Maybe the pavement in Morocco is just more slippery than elsewhere?

Originally Posted by AlpsRider

The MPS 4S tires apparently have better traction and braking grip. You could go up one size to 255/275.

That's the setup I swapped to. This may not be the case if you're pushing your tires to the edge but you're really not getting your moneys worth unless you already need new tires in my opinion.

[Moflow]

Originally Posted by mightyfox

im pretty certain it was actual tire spin as the back of the car started stepping out and getting squirly (scary stuff at that speed) . If i was to go with wider tires what would be a good set up? the car is on 437m wheels btw.

If the rear end is stepping out, its not the clutch and you're correct in thinking its rear end grip. Wider tires should help, as would a stickier rubber compound, but man this is a strange mystery!

[mightyfox]

Originally Posted by somberlaine

where in Morocco can you drive at 100+ mph

does it happen when you shift?

We have huge empty highways you could drive drive at 200 mph if you were crazy and irresponsable enough. Also no i didnt have to change gear it spins up if i floor it in like 4th gear at that speed.

[Robin_NL]

I think it's (sand/stuff on) those roads mate.

Cheers
Robin

[pizza240]

Yeah I am running M3/M4 spec widths and I lose traction even in a straight line on a lot of Canadian roads. It's nice not having to go full throttle.

Also kinda nice to all of a sudden be able to go full throttle with full traction when you load the car up with hundreds of pounds worth of adults and full coolers of ice/drinks, etc.

No tune on my car either.

[mightyfox]

So would coil overs or some other suspension tweaks help with the issue if wider tires wont help? i mean there has to be a way to get this car to put its power down it's only 400hp not 700 or 800hp , doesn't make sense that it would struggle so much (the other day i got absolutely demolished by a 640i, it just took off while my car snaked around uncontrollably until i had to back off the throttle).

[detroitm2]

Originally Posted by mightyfox

So would coil overs or some other suspension tweaks help with the issue if wider tires wont help? i mean there has to be a way to get this car to put its power down it's only 400hp not 700 or 800hp , doesn't make sense that it would struggle so much (the other day i got absolutely demolished by a 640i, it just took off while my car snaked around uncontrollably until i had to back off the throttle).

Are you running with DSC off?

[ZeroFx]

The car does squirm at 100mph. In kickdown mode you hit the peak torque and can make the tyres squirm around.

This is what 400ftlbs of torque looks like.

Road surface can play in to it also.

[ZeroFx]

Originally Posted by mightyfox

So would coil overs or some other suspension tweaks help with the issue if wider tires wont help? i mean there has to be a way to get this car to put its power down it's only 400hp not 700 or 800hp , doesn't make sense that it would struggle so much (the other day i got absolutely demolished by a 640i, it just took off while my car snaked around uncontrollably until i had to back off the throttle).

HP doesnt not mean jack shit. Its torque that is the problem. That 640i has less but it might have X drive...

"only 400hp" im starting to think its mostly the driver thats the issue here. Especially if you just have a foot made of lead.

[AlpsRider]

The tail on the Comp is slip happy in MDM. That's what makes the car playful. It can happen even at higher speeds depending on road surface, temperature and angle of the road. If you don't want to slip then switch to DSC on, get bigger tires or buy an Audi Quattro. 😁

[akkando]

Originally Posted by mightyfox

hello guys, as mentioned in the title i'm having big traction issues on the stock Michelin mpss (about 6000 miles on them now) from new. car is completely stock and I've managed to spin the tire going over 100 mph in a straight line.

Any help with this situation would be greatly appreciated ( wider tires or maybe m perf coil-overs?) as I've never had any car before be this completely out of control under power (i cant even out accelerate a damn diesel clio at the lights!!).

Your car just have the 1000hp prototype engine?

make sure to check tire pressure with a gauge instead of the idrive.

[mightyfox]

Originally Posted by detroitm2

Are you running with DSC off?

i mostly drive around with dsc off or MDM. I never leave traction control completely on as it just cuts way too much power.

[aerokubectl]

Lmao wider tires and a tire that wasn’t designed for the car. I love how we’re all geniuses on a wider tire as if there are no trade offs, bmw are such noobs putting i3 skinny tall tires on this car!

[DStinson]

Too many heat cycles will cause this behavior. Run a little higher PSI and test it out. 37-38 psi

[mightyfox]

To all the people saying it's the road surface, i'm pretty sure you guys are 100% correct. However, i see that i'm not the only one with traction issues and since there is nothing i can do about the roads (it is what it is lol) i think i'll just be going with wider tires.
That being said, do you guys think i could fit 265/30 ps4S in the front and 295/30 ps4s in the back with no issues?

[doughboy]

Originally Posted by mightyfox

i mostly drive around with dsc off or MDM. I never leave traction control completely on as it just cuts way too much power.

Errm that's the whole point of TC.

Traction control cuts power to stop wheel spin. If you have poor grip then TC will carefully meter out the torque up to the limit of grip. Agree on "normal" grip surface then turning TC off give a more lively drive as you can overwhelm the tyres.

But you should only notice TC cut-in if you are lead footed and really overdoing the throttle.

If TC is having to cut power to maintain traction then how do you think turning it off and gassing it will help?

[mightyfox]

Originally Posted by doughboy

Errm that's the whole point of TC.

Traction control cuts power to stop wheel spin. If you have poor grip then TC will carefully meter out the torque up to the limit of grip. Agree on "normal" grip surface then turning TC off give a more lively drive as you can overwhelm the tyres.

But you should only notice TC cut-in if you are lead footed and really overdoing the throttle.

If TC is having to cut power to maintain traction then how do you think turning it off and gassing it will help?

I see your point, it's probably smarter to keep TC on but man the feeling when TC kicks in so much is just so frustrating to me so i'd rather just try and modulate the throttle myself if that makes any sense.

[doughboy]

If you're careful with the gas maybe.

I can only think it's sand / shiny dry tarmac. I remember in saudi the roads were so slippy it was unreal.

[m7ammed]

Originally Posted by doughboy

If you're careful with the gas maybe.

I can only think it's sand / shiny dry tarmac. I remember in saudi the roads were so slippy it was unreal.

Originally Posted by doughboy

If you're careful with the gas maybe.

I can only think it's sand / shiny dry tarmac. I remember in saudi the roads were so slippy it was unreal.

This! In Riyadh my e82 135i would spin the tires when I kick down while driving over 70 mph. Sand/Surface is a big issue.

[AlpsRider]

Originally Posted by mightyfox

I see your point, it's probably smarter to keep TC on but man the feeling when TC kicks in so much is just so frustrating to me so i'd rather just try and modulate the throttle myself if that makes any sense.

I drive in MDM unless it is cold or wet, otherwise I find it perfect. DSC on cuts the throttle and applies the brakes at very inopertune times. The OGM2 has that problem even in Sport+. They improved the software with the M2C. If you never push the car then by all means just leave the nannies on.

[808elise]

Driving a car with a bunch of driver aides is stupid. For your safety aswell.

Learn to drive it under your own power and control with your foot and wheel. Buy a gtr if u want boring power slip resistant awd speed. U own the 2rwd chariot of gods, so drive it like its meant to be driven. Stg2 gets me sideways at 50 or so in third and good conditions (85-90f, dry, normal asphalt not the coral $hit). Some of the roads here in Hawaii have coral mixed in with them and when cold and humid car gets sideways on the highway. Conditions make a big difference but stock and sideways at 100 with good conditions sounds like bs.

My e46 tuned to around 800whp, granted runs 335 r888s, loses traction jus a touch at 100 if downshifting but immediately bites.

Dont upgrade to stg2 if u scurred now! New map released today updated to even more low end, 55tq! Crazy, love those bm3 guys!!