Are there any limitations when going to dyno the ALL4? Meaning... are we limited to a linked Dynojet or mustang dyno? I know with Haldex awd cars, you need one of those type dynos or are required to disconnect the Haldex when on the dyno. The ALL4 has a electromagnetic center differential and would like to know if the limitations are similar to the Haldex?

Thanks!

 

Just look for places that also tune STIs/Evos/GTRs/etc. They'll have an AWD dyno. A Dynapack would also work.

Where are you located? People might know of some places close by.

 

So, there are no limitations (similar to Audi Haldex Awd) with dyno's for the ALL4 system? I know if you try to dyno, say an Audi on a Dynojet, that doesn't have the both rollers linked, you can fry the Haldex system. There are limited linked dyno's in the NJ area...One of which is a Mustang Dyno. Another I know of doesn't take Dyno appointments unless you are tuning. My good friend has a Dynojet but is not linked. Ideally, I would like to use his ...as its free. Hes never dynoed a Mini ALL4 and isn't too familiar with the AWD system but thinks its similar to Haldex from what hes seen. The other way to be safe is to disconnect the driveshaft... Audi's do that or pull the plug on the Haldex prior to dyno.

 

I think I get what you're talking about. I didn't get it before. I don't really know enough technical info about dynos to say for sure one way or the other. The Haldex is the system that is primarily FWD until it detects wheel slippage and then sends torque to the rear wheels right? I would have to believe that any dyno that is capable of dynoing a STI/Evo would work fine for dynoing an all4 since if the rollers aren't linked you could have the potential of frying the center diff in the STI/EVO. But again I don't know for sure. But if you're in the NJ area aren't there tons of places that tune VWs that could dyno the car?

 

My friend who owns the dyno primarily worked on and tuned Evo's/STIs. He would never dyno an Audi or AWD VW on his Dynojet without pulling the plug or disconnecting the driveshaft. The AWD system in a STI/Evo is totally different than a Haldex. That being said, there doesn't seem to be enough knowledge to know if the ALL4 can or can not dyno on a non linked system.

There are only a select few places in NJ that have the specific dynos.

 

Heres the response I got from the manufacturers (GKN Driveline) of our AWD system.

"I’m glad you asked this ! Because the Mini Countryman is an on-demand AWD system you either a) Have to use linked rolls or, b) physically disconnect the propshaft and test in 2WD. If you test it on unlinked rolls the coupling will quickly reach its maximum operating temperature as if the front wheels were always on ice and the rears always with grip. The software will open the coupling to protect it but the resulting huge speed difference across the clutch is still not something you want to do. Don’t just disable the AWD with a fuse or connector disconnect because the excessive speed difference problem remains.

If you can’t do (a) and use (b) instead (as most people do) you will probably throw all sorts of ESC/ABS and AWD codes that you may have to clear yourself once you reconnect the system after using the dyno."

Enough said for me!! I will be disconnecting the propshaft.