[3t3p]

My previous car was FWD and would wheel hop quite violently from a dig in first

I didn't expect my M2 to do that I thought it would spin/smoke tyres.

I see others have reported this phenomenona also.

Second gear spins the tyres and doesn't seem to hop. Any ideas why this happens?

I'm on star MPSS.

[chief1richard]

Originally Posted by 3t3p

My previous car was FWD and would wheel hop quite violently from a dig in first

I didn't expect my M2 to do that I thought it would spin/smoke tyres.

I see others have reported this phenomenona also.

Second gear spins the tyres and doesn't seem to hop. Any ideas why this happens?

I'm on star MPSS.

My car did this on OEM Continentals when temps were below 50 degrees. Switched to Winter tires and it goes away. Seems to be a temperature tire compound thing.

[TrentMeister]

Originally Posted by 3t3p

My previous car was FWD and would wheel hop quite violently from a dig in first

I didn't expect my M2 to do that I thought it would spin/smoke tyres.

I see others have reported this phenomenona also.

Second gear spins the tyres and doesn't seem to hop. Any ideas why this happens?

I'm on star MPSS.

Yeah it's a combo of stiff rebound and super grippy tires.

Anything with less grip or the MPC in my case will get rid of it

Somebody smart explains it really well in a thread that's in the depths of the forum somewhere

[6speed_M2]

I always thought it had something to do with it either being cold outside (the floors) or since the diff is bolted directly to the subframe

[VisualEcho]

I've had it come and go on different tires, at different temps, different tire wear, on different surfaces, and wet/dry differences.

It's a flaw in the suspension design, and anyone that tells you otherwise just doesn't know what they're talking about.

[3t3p]

Right so not much that can easily be done about it.

Wondering if those with coilovers fitted all round still have this issue?

[M2C_PLUS]

Originally Posted by VisualEcho

I've had it come and go on different tires, at different temps, different tire wear, on different surfaces, and wet/dry differences.

It's a flaw in the suspension design, and anyone that tells you otherwise just doesn't know what they're talking about.

What do you think the flaw is?

[VisualEcho]

Originally Posted by 3t3p

Wondering if those with coilovers fitted all round still have this issue?

When I swapped my OEM suspension for the MPerformance it remains.

You're not going to get rid of it.

Originally Posted by GreatWhiteM2

What do you think the flaw is?

If you do some searches you'll find people much more qualified than myself to guess what it is. All I can say is that it's an issue with this suspension, as it happens on the M3/M4 as well. Some cars experience it more than others, and all sorts of little changes can make it better or worse. You're just going to have to live with it.

[M2C_PLUS]

Originally Posted by VisualEcho

When I swapped my OEM suspension for the MPerformance it remains.

You're not going to get rid of it.

If you do some searches you'll find people much more qualified than myself to guess what it is. All I can say is that it's an issue with this suspension, as it happens on the M3/M4 as well. Some cars experience it more than others, and all sorts of little changes can make it better or worse. You're just going to have to live with it.

Im aware what others say, I was asking what you think it is as you seem assertive of the subject.

I've never had it happen once to me and Im on my 3rd M2

[VisualEcho]

Originally Posted by GreatWhiteM2

Im aware what others say, I was asking what you think it is as you seem assertive of the subject.

I've never had it happen once to me and Im on my 3rd M2

I'm assertive because I've done a lot of research, and have tested the problem myself. As far as a fix, there literally isn't one, otherwise people would be doing it left and right.

I'm glad you've never had the issue. I wish that was true for all of us.

[M2C_PLUS]

Originally Posted by 3t3p

My previous car was FWD and would wheel hop quite violently from a dig in first

I didn't expect my M2 to do that I thought it would spin/smoke tyres.

I see others have reported this phenomenona also.

Second gear spins the tyres and doesn't seem to hop. Any ideas why this happens?

I'm on star MPSS.

Hello mate, google Axel Tramp/Wheel hop and have a read. It can be numerous things, tyre grip, suspension, too stiff springs. Most of the time it is tyre grip and what is happening to suspension parts at the point of traction loss/tyre leaving the floor.

I have never had it happen to me in my M2's, I do however always ensure my tyres are warm etc before venturing WOT (wide open throttle) and as member BP is aware, my cars are driven harder than average

[3t3p]

Quote from a Mad Car Dad YT video responder:


Pinned by Car Mad Dad
IPTV Brands
2 months ago
I've raced and set up BMW's for the past 20 years including 4 years in VLN at the Nurburgring and I just bought an M2 Comp manual. I'm not surprised your raving about the increased traction and grip as the 3200 rpm S55 wall of torque arrives. On the OEM set up (which is a fault line between BMW accountants and BMW engineers) the car's compromised set up is safe but made to feel frenetic. I call this "Stockbroker Suspension." This means you'll have a story to tell your mates down the pub and you'll survive 99% of situations provided you leave at least MDM on. The standard suspension is Sachs I believe re-badged as BMW and up to 7/10's it does an OK but compromised job against the likes of Ohlins. The BMW engineers have created a set up that I call "M2 Diff Party" and here is how it works and why traction is compromised: The rear standard springs are 500LB (Ohlins fitted in video are rear 950LB) progressive. When you accelerate hard they build up progressively (but quickly) to their 500lb max. The OEM dampers are not valved strongly enough to control the springs especially the speed of their rebound above 7/10's and the undulations of a British Road push the spring back up vertically as they reach max 500LB progression and max push back at the peak of an undulation. The speed sensors, G sensors and diff sensors monitor this happening and the first part of the car breaking traction is essentially down to vertical movement upwards and not enough power in the damping to control this (cheap dampers made to a price target). Now the BMW engineers and test drivers (most of whom are race drivers) know this and so they have programmed the diff and systems to interfere with this damper imperfection in such a way to stroke the drivers ego. So what happens is the speed sensors see the slip and momentary difference in opposing axle speed and send in the diff to sort it out like a teacher running to break up a school fight. This produces a fish tail (under acceleration) once or twice depending on the road surface and temperature of the tyres hence the name "M2 Diff Party." Add to this the system's moving the weight transfer around by cutting and opening the fuelling and you get this frenetic personality which is BMW's way of hiding the fact they put the cheapest suspension they could get away with on your M car. 97% of owners don't care and can't drive them to their real limit anyway, it's a bit like a BMW's version of the film "The Matrix" where you can have a blue pill or red pill and "Ignorance is Bliss." That is of course until you wake up! I have just ordered my Nitron R3 kit with bespoke spring rates from Matt of Suspension Secrets who fitted the kit in this video. Nothing against Ohlins as I have won races on Ohlins I just want more fine tuning of the high and low speed bump setting's and the rebound because according to my wife I am a pain in the arse, a perfectionist and a fussy git.

[SquamM2C]

I have this issue all the time, even coming out of corners at the track. The worst is in the rain or damp and cold. I have passengers ask what it is sometimes, as it makes the car sound like its falling apart. Obviously if you get the hop its good to lift off. Like everyone said its the worst when its damp and cold...below 10dg is when i can expect it.

[3t3p]

Last time I remember it happening it was cold and damp yeah.

Thud thud thud thud

[M Fifty]

Maybe try modulating the throttle application to match the available traction?

[3t3p]

Originally Posted by M Fifty

Maybe try modulating the throttle application to match the available traction?

That's far too sensible talk!