Technical Question about F8X ///M Diff

[Race82]

Does anybody know what % of lock on the rear wheels the stock OEM Diff has when using sport plus (all) and traction fully off?

The M4 GT4 Drexler Motorsport Diff uses the same ratio as OEM but locks the rear wheels at 60% using a 40 degree ramp angle.

I’m keen to know what the stock Diff locks the rear wheels at (or even the % range of lock if it adjusts due to traction control) when under load e.g like at the track?

[Remonster]

Originally Posted by awbmw

Does anybody know what % of lock on the rear wheels the stock OEM Diff has when using sport plus (all) and traction fully off?

The M4 GT4 Drexler Motorsport Diff uses the same ratio as OEM but locks the rear wheels at 60% using a 40 degree ramp angle.

I’m keen to know what the stock Diff locks the rear wheels at (or even the % range of lock if it adjusts due to traction control) when under load e.g like at the track?

The M differential's lockup is fully variable, depending on what its computer decides is optimal for a given scenario it can lock anywhere between 0 and 100%.

I believe the GT4's Drexler-manufactured diff is not an active differential but I may be wrong. I didn't think the GT4 class would allow active differentials but from skimming their rules it looks like the regulation is pretty open regarding diffs, only saying it should stay close to the factory car's setup.

[Race82]

Originally Posted by Remonster

The M differential's lockup is fully variable, depending on what its computer decides is optimal for a given scenario it can lock anywhere between 0 and 100%.

I believe the GT4's Drexler-manufactured diff is not an active differential but I may be wrong. I didn't think the GT4 class would allow active differentials but from skimming their rules it looks like the regulation is pretty open regarding diffs, only saying it should stay close to the factory car's setup.

🤔 Thanks, I wonder how good the stock Diff is at determining optimal lock vs a drexler that has a fixed ramp angle when getting power down or stopping on the track

[MPOOR]

interested in purchasing Drexler diff ~ but can't find any post on the forum, who installed it
on F8X M cars.

[fertech]

Originally Posted by nysid2007

interested in purchasing Drexler diff ~ but can't find any post on the forum, who installed it
on F8X M cars.

Check here, sorry it is only in German
http://www.limitedslip.de/service/einbau_drexler_m4.html

[MPOOR]

Originally Posted by fertech

Check here, sorry it is only in German
http://www.limitedslip.de/service/ei...rexler_m4.html

No problem ~ Thank you
I can let Alpha Go to translate ~! haha