Under drive pulley kit

[6mtguy]

Originally Posted by pbonsalb

I did the pulley about 3 years ago. Mine is a Rogue. Bought it used. If you are chasing power there aren't a whole lot of options. Pulley, cat deletes, filter, intake, tune, supercharger. And if going supercharger skip the pulley since superchargers use a special pulley.

Been thinking about getting the Rogue pulley would you recommend it?

[8600RPM]

I had one on my e92 for a few thousand miles but noticed engine temp quite a bit hotter and in my view a hotter engine will tend to pull more timing and ultimately cancel any benefit or perhaps even be slower ylin the end. I drove my car quite hard however

[pbonsalb]

Originally Posted by M3i6a

Been thinking about getting the Rogue pulley would you recommend it?

Sure. I would have bought any of them. No rocket science. They are all the same but vary slightly in the % under drive. My view is that Dinan probably does more testing than anyone since it's products are warrantied, and it's under drive is actually the most. So the others with less are fine. I do not believe there is enough difference in coolant temp to result in timing bring pulled. If I had to be a critic I wound say my AC is slightly less effective.

[6mtguy]

Originally Posted by pbonsalb

Sure. I would have bought any of them. No rocket science. They are all the same but vary slightly in the % under drive. My view is that Dinan probably does more testing than anyone since it's products are warrantied, and it's under drive is actually the most. So the others with less are fine. I do not believe there is enough difference in coolant temp to result in timing bring pulled. If I had to be a critic I wound say my AC is slightly less effective.

Got it. Thanks!

[Flea7]

Originally Posted by 8600RPM

I had one on my e92 for a few thousand miles but noticed engine temp quite a bit hotter and in my view a hotter engine will tend to pull more timing and ultimately cancel any benefit or perhaps even be slower ylin the end. I drove my car quite hard however

I've noticed this myself but the temps weren't too bad...just a few degrees hotter when i'm on it....but i'm in Seattle and the temps aren't like AZ. I'm sure you're experiencing worst.

[Yoddha]

Originally Posted by Dr. George

Hey guys

I am getting a dinan exhaust later this month. I was also Checking out the under drive pulley kit. Anyone have one on their m3? Something worth considering? Labor cost?

if you are still under warranty, don't do it

[6mtguy]

Originally Posted by pbonsalb

Sure. I would have bought any of them. No rocket science. They are all the same but vary slightly in the % under drive. My view is that Dinan probably does more testing than anyone since it's products are warrantied, and it's under drive is actually the most. So the others with less are fine. I do not believe there is enough difference in coolant temp to result in timing bring pulled. If I had to be a critic I wound say my AC is slightly less effective.

Just installed the Rogue pulleys by a shop now when at full lock left or right there's a slip. Is that normal?

[Dave07997S]

I had the pullies on my car, it was worth 9rwhp on the same day. Also Regular Guy has a dynobase and they do show a gain of about 9-14rwhp depending on whose dyno you use. I had the AFE pullies, if I was to do it again it would be the Dinan installed at a dealership that backs Dinan's stuff up. I heard of a guy through someone very reputable that he was initially denied warranty coverage for his pulley, don't know what brand. BMW finally relented...but I think the guy was out of labor.

If you are chasing a magic number on a dyno, they help. When I did it, I didn't really feel anything. When you are getting 10rwhp all at the top end of the tach and the car is already pulling their like a banshee, you don't really notice 10rwhp.

Dave