Originally posted by Peach:
Steve Dinan says: (As in Dinan BMW)

The Danger of Power Pulleys

This guy is no idiot. What he says has truth to it, but it doesn't have to be taken as law. (Don't bother arguing the fact that he is talking about E36 BMW's instead of Contours. It all has the same effects in the long run) If I were you, I'd play it on the safe side. I personally am going to go the DMD route. If you cheat your way to quickly gain HP, the results will be brief before you have long term negative effects. I am in it for the long run myself. Don't forget about what else is hooked to the Crank pulley. (Waterpump, alternator, etc) Check and make sure turning them at different RPM is going to be safe.


-Bishop



Well - you must not have blown you w/p yet or you'd know the contour water pump is not connected to the crank pulley. Also at high rpm's it's better for the accesories to be running slower - with only a very slight risk of under spinning the alterantor with extended idle times.

Lance sent an oil sample of to blackstone labs after (IIRC) about 40 or 50k miless with UDP and had no indications of abnormal bearing wear. My pulley was one off the first 25 produced by U.R. for the contour and it's been on the car for almosst 60k miles - just about 80k on the engine.

And the straight six BMW crank has to be darn near 2x as long as our V crank - making it MUCH less torsionally rigid.

But you're right that everyone seems to LOVE the DMD.


97 Contour SE MTX K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust 04 Grand Caravan SXT