Underdrive pulley advice

[x Spades x]

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Hey Guys,

So I just pick up my "new to me" E92 M3 last month and I want to get some underdrive pullies. Does anyone have a preference? Who makes the best ones?

Thanks in advance

Kareem

[pbonsalb]

Originally Posted by x Spades x

Hey Guys,

So I just pick up my "new to me" E92 M3 last month and I want to get some underdrive pullies. Does anyone have a preference? Who makes the best ones?

Thanks in advance

Kareem

Somewhere there is a thread with the percentage underdrive for several. It might be 5 years old, by swampfox2. Dinan is the highest underdrive and reportedly uses a belt that is so tight many have a lot of difficulty getting it on. I would just buy a used one, whatever brand. That is what I did in 2012. People with one who add a supercharger need a different crank pulley and sell their UD pulley.

[GORDON.M3]

Dinan sucks cause the install is the worst of them.

Evosport (the one I have now) has many dyno's available on this forum. Great part but rare to come by since they are out-of-business. https://www.m3post.com/forums/showthread.php?t=162024

Macht Schnell (GET THIS ONE) is the only one that still readily available and its a great price. I'm sure the gains is just as much as the Evosport one if not more since it comes with an additional pulley.

[pbonsalb]

Originally Posted by GORDON.M3

Macht Schnell (GET THIS ONE) is the only one that still readily available and its a great price. I'm sure the gains is just as much as the Evosport one if not more since it comes with an additional pulley.

I am using the MS UD crank pulley. Works fine. I did not need the extra PS pulley on my early 08 car. The extra PS pulley was pretty much identical to the stock PS pulley on my car.