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some said the quaife lsd made specifically for r53, but also will fit r56?or do they also make the r56 version of it?
How big is the LSD and the box is actually?I'm planning to buy it on my trip overseas
Originally they had one for the R53 and another for the R56. Because of the torque output of the R56 they set up the engagement pressure a little different. Many drivers complained about this and they have since just been using the same set up as the R53. So pretty much all the used LSD's you find and any new ones they sell now work in both the R53 and R56.
The box it self is roughly 10 inches cube from what I recall
LSD does not really have anything do with transmission in general. It is connected to the axles that send torque to make the wheels spin. Having a LSD will give you better traction in extreme situations like hard cornering or snow by sending equal amounts of torque to both wheels. Under normal conditions it does nothing.
But does someone know if it is possible to retrofit a LSD, let's say Quaife, on the AISIN 6 speed auto tranny?
No.
I've asked around from all known MINI tuners in the US for my wife's car, and the answer has been a consistent "we don't think it will fit" due to packaging differences between Getrag (manual) and Aisin (auto) transmissions.
One got back to me with "if you give us the car and pay us to explore on your dime, maybe we could figure something out. But no promises". I cut my losses, bought better tires, and learned to drive around open-end diff's limitations.
I've asked around from all known MINI tuners in the US for my wife's car, and the answer has been a consistent "we don't think it will fit" due to packaging differences between Getrag (manual) and Aisin (auto) transmissions.
One got back to me with "if you give us the car and pay us to explore on your dime, maybe we could figure something out. But no promises". I cut my losses, bought better tires, and learned to drive around open-end diff's limitations.
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Hi, sorry for the necrobump but it seems nobody verified if it is possible to put a mechanical LSD into an Aisin autobox and I really would like to get one on my R56/N18 auto... not sure if the question is right but, would that be possible to verify if the original differential has the same P/N on both manual and automatic? (I guess I'm trying to understand if the differential is a component specific to the transmission or the drivetrain/axle/engine) ...some practical data/experience would be really helpful..
.. thanks a lot!
P.s.
I'll talk to the local mini dealer next week, maybe they have an open transmission or can verify somehow...
Hello, quick update, after some research, it turns out the differential is as expected inside the transmission box, which makes me think it is unlikely the Getrac one and the Aisin would be interchangeable.
Also, considering the differential connects to the axels, I had a look at those parts, hoping they would have been the same but nope, the axels are different P/N depending if you have a manual or automatic.
So, it could be due to different length of the axels/transmission but (worst case) due to different shaft profile.
The other problem would likely be the main gear attach holes, which could be different too.
I contacted Quaife, just to understand if making a custom one is a possibility (unlikely but..)
Looking around I found a guy who did something similar to what may be needed:
Getting a not finished differential, and having a company capable of machine the right shaft profile/holes *may* be the way to go...not even thought about costs for now.
Quick update, for those interested, this is the only (AFAIK) picture of an Aisin transmission on the internet:
the open differential is different (no pun intended!) , twelve bolts instead of ten and seems to me the gears are bigger compared to a Getrac manual.
Btw, Quaife replied they can make a custom diff, but indeed the minimum order is 10 pcs... I will have to pass.
*so*, after talking to the dealer, I'll proceed converting the car to manual....while a bit skeptical initially, it turns out that it is not so crazy.
Basically, even if I had a manual already, a lot of work to mount the LSD would have been anyway required...so, it all comes to find a decent second hand manual tranny, as I will anyway pick "racing" stuff for axels, clutch, flywheel, short throw stick etc..
I have my old (open) diff and can take some measurements off of it if you can find some thing on the aisin diff to compare it to. just looking at that pic the aisin diff appears to be a lot longer between the axles than the manual. I think i have a few pics on here before i swapped them
Thanks, appreciated, but Quaife asked for an actual Aisin diff in order to make the custom one, so that's a requirement for them.
I abandoned the idea of pursuing a torsen diff for the autobox, I'm now in contact with Way in order to get a Getrac+Quaife and all the parts needed to convert the car to manual.
Will open a new thread about the conversion as can't really see anything about R56/N18, it may help other people!
Quick update, for those interested, this is the only (AFAIK) picture of an Aisin transmission on the internet:
the open differential is different (no pun intended!) , twelve bolts instead of ten and seems to me the gears are bigger compared to a Getrac manual.
Btw, Quaife replied they can make a custom diff, but indeed the minimum order is 10 pcs... I will have to pass.
*so*, after talking to the dealer, I'll proceed converting the car to manual....while a bit skeptical initially, it turns out that it is not so crazy.
Basically, even if I had a manual already, a lot of work to mount the LSD would have been anyway required...so, it all comes to find a decent second hand manual tranny, as I will anyway pick "racing" stuff for axels, clutch, flywheel, short throw stick etc..
..nice week-end project
sounds like you need to find at least 10 people that will commit (pay up front assuming) and a group of people will be happy.
06-06-2013, 07:23 AM
