A correctly sized autorotor SC should get us to 300 WHP without too much trouble. As i think i stated in this thread, i have a friend with a VW 16v with bahnbrenner's autorotor setup making over 300 whp.

 

interesting.....does it fit on a mini?

 

Yes. That is what the German RMS is....the autorotor in MINI outfit. Randy Webb and M7 worked on it, but it was too expensive. The prototype piece was sold in Cali.

 

back to MP62..

Here's a modified MP62 used in miatas.
Pictures from br performance. see the shortened "nose"

 

If you can find a way to source the mp62 supercharger for cheap, i'll make a bracket system to make it work. I just havn't been able to find a good source. I have a place to get the autorotor for a decent price.

I'm undiced as to wether i want to use my turbo setup, for an autorotor setup right now. If the mp62 can be had for cheap, then i might go that route.

 

as ours gets it's twist out the back of the current SC....

Matt

 

I have a setup for a normal mc waterpump that'll work just fine.

 

thats the other source i heard of this from......

 

is it larger as well?( mc water pump)

 

Just check any american car wreck yard. Most GM 3.8 supercharged engines (91-95 MY) were using the M62. Should be worth a couple hundred bucks at most. Then again you might find a few Mercedes or Nissan applications also.

JP

 

You can even buy them rebuilt for around $500 ( m62 ) What I would like to know is are the mounting positions the same or close with the exception of the water pump?

I would really like to see them side by side.

 

I am pretty sure the 62 has a larger housing. It flows more air, so.... ? Has anyone actually made the measurements? Reason I ask is, I've looked around in the past and seen it to be larger [significantly] and then Andy came up with the mentioned 'they are equal' measurements. I am confused...

 

Not quite a proper picture. You may already have (seen) this, but just in case, here's an attempt.

JP

 

That is exactly what I'd heard, that the 62 was larger. Interesting, though, that the size ranges seem to overlap with them... my guess, though, is that the 45 we have is on the small aspect of the range, making a 62 not a simple 'drop in.'

 

JP is spot on for the best source of cheap donor bits for this project.

If I recall correctly from my search for an M62 for use as a candidate for installation on a Buick 215, the snout on the GM 3.8 application looks too long for use on a MINI. However, if the snout can be swapped for a shorter input drive without too much trouble, M62's are available at a reasonable cost from salvage yards (look for late model Buick Rivieras, Park Avenue Ultras, or Pontiac Bonneville SSEi's.)

Ford Thunderbird Super Coupes also used an Eaton supercharger, but I'm not sure which model- maybe an M90 if this auction listing (in which I have no affiliation or interest) is correct.

As for coolant circulation, Randy posted here that in order to allow for retention of the stock AC compressor, the RMS kit was to be offered in a street version which utilized a BMW OEM water pump. The water pump was originally intended for use in a 6-series car. If this pump works for the Autorotor, maybe we could use it with an M62? There was a photo of the RMS electric water pump installation somewhere, but I can't find the link to it. The water pump was mounted to the engine block below the Autorotor, and behind the AC compressor.

Is it evil for me to wish for the untimely demise of a 6-series so I can get the water pump for cheap from a recycler, too?

Now, bolting all the bits together (and not having them rend themselves one from another in operation) is the challenge!

 

Do you mean inner housing? because the outer housing is exactly the same measurement according to these specs ("B" in the schematic - 180)

JP

 

The M62's width and height are the same as the M45, so getting it to fit between the block and the radiator should be no problem. The housing is longer, in order to accomodate longer rotors- thus the increase in displacement vs. the M45.

If the water pump is relocated, the space opened up by its absence might be sufficient to allow for the installation of the M62. However, custom inlet and outlet tubes would need to be fabricated in order to allow the M62 to be mated to the stock intercooler and throttle body.

Looks like it's time to sign up for that TIG welding class at the local community college...

 

The only difference between the chargers is their length. I went to a chevy dealer today and looked at the charger on a cobalt SS. its only longer...

As far as the waterpump is concerned you'll all just have to wait to see what i come up with.

 

so i guess that means ur not tellin' yet!!

 

You're such a joker

 

PART time!!

 

ssssshhhhhh....

 

The waterpump is connected to the eaton charger so if you swap the charger you need another solution for the waterpump.
RMS uses the electric waterpump from BMW which is used on the BMW 640i.

 

How bout this for a water pump.

http://www.racerpartswholesale.com/elecpump.htm

 

I would take that controller but the oem BMW 6er waterpump.
Here in germany some raceteams use the electric water pump but it will not last a hole season.
The BMW waterpump has a duration for at least 60.000 miles.