It has been proven that the medium case rear ends can handle much more power than the M5 and 540i put down. There are also many more ratio options available for less money with the medium case rear ends. This leaves me wondering how much of a difference there is in weight between the two. Even if the sub-frames are the same, the half axles are at least a little different and the large case differential must have at least ten pounds on the medium case.
Pros:
1) More diff ratios to chose from.
2) Medium case diffs are cheaper and more common.
3) A few pounds weight saved.
4) Less mass for the drive train to spin. Between the half axles and larger gears in the diff it might only be a pound or two, but if physics apply here the same way they do with light weight flywheels, it should be considered.
Cons:
1) Labor
Does anyone have any data they could share? I have a large case half axle I can weight.
If dropping a subframe on a M5 or 540i for whatever reason, might it make sense to swap to a medium case setup while you are at it?
Pros:
1) More diff ratios to chose from.
2) Medium case diffs are cheaper and more common.
3) A few pounds weight saved.
4) Less mass for the drive train to spin. Between the half axles and larger gears in the diff it might only be a pound or two, but if physics apply here the same way they do with light weight flywheels, it should be considered.
Cons:
1) Labor
Does anyone have any data they could share? I have a large case half axle I can weight.
If dropping a subframe on a M5 or 540i for whatever reason, might it make sense to swap to a medium case setup while you are at it?
Weight Differences - Large Case Rear End versus Medium Case Rear End
Aucun commentaire:
Enregistrer un commentaire