Interest in Supercharger Crank Pulley?
 

I will have my hands on a couple of custom crank pulleys for the m42 in a little while. I was wondering if this would interest any of you. For an M42/M44

What i have is the outer piece of the harmonic balancer, Machined exactly like the stock unit. The modification i made was I added another row for a 6 rib V belt to power my 6 rib pulley on my twinscrew supercharger.

Only thing is the outter 3 rows will be one piece unlike in the picture shown. so the piece in the bottom right will be completely re made with an extra row for a 6 rib belt made. This piece will bolt up to the harmonic balancer as normal, maintaining all stock belt measurements. This makes that SC project way easier giving the sc it's own belt to run off of.

http://i981.photobucket.com/albums/a...100_1365-1.jpg


INFO: This is not an underdrive pulley. New 6 rib row will be 5 inches diameter. This will allow you to run a big 6 rib belt to keep your supercharger from slipping, while maintaining the Air conditioning unit on your car. The harmonic balancer is still used in this pulley.

this is the idea in the end. to add another row.

http://members.iinet.net.au/~u901394...owerdrive2.jpg

Is there any interest in grabbing the extra few i have coming? cost would be a few hundred each. I see this stuff going for 400-600$ for the BMW Im thinking probably 200$ to cover my costs.

the custom portion containing 3 rows would be a 4 rib V for the ac, a v belt for the power steering, and 6 rib for your Blower.

Of course this bolts to the stock harmonic balancer which contains the crank shaft pickup sprocket, and V belt row for the water pump/Fan.

hmm thought there would be some sort of interest in this for you guys going supercharged.

The few people that run blowers run the DASC kit. Nobody running custom setups.

i have seen many custom setups mainly because of the DASC not being in production.

Last I heard the DASC was back in production, but nobody wants it because it's ridiculously overpriced @ $3800 for a base line kit with no tune. Seems like these days the majority of people are leaning towards turbochargers and 6cyl swaps:wink:

yeah i hear that. i'm only 1300$ into my twinscrew project. and that's including full tune

http://m42club.com/forums/showthread.php?t=14314

For those interested the Price will be $250

Will more than likely be made of 10-45 carbon Steel at a tolerance of .0003

This will replace the accessories pulley that bolts onto the harmonic dampener. It will look similar to this. It will contain a 4 rib row for AC, a V row for PS pump and a 6 rib row for running the supercharger. PS and AC are stock driven, not under or over driven.

http://i35.photobucket.com/albums/d1...rankpulley.jpg

Let me know if you are really interested.