1st Gen R53 Cooper S Most liked posts in thread: Crank Pulley Install

Well....:crazy: generally I am confused all the time, but that's just me. And that is why I ask questions. :ihih:

I think I am going with the PRW unit. Thanks for the input, I figured this was the place to ask.

If all goes well I should be back on the road by Labor Day:biggrin5:

 

I can tell you we sell both the Fluid Damper and ATI. I've installed both of them and used them both and the ATI is hands down a better product. When you set them side by side you can easily see it. We also found the ATI to dampen better on the engine, and many times the car will idle smoother after installing it.
We also found the ATI better for track use just like the RSR race teams found as they used the Fluid dampers and ditched them for the ATI.
And if our opinion isn't enough do some research on inertia dampers vs fluid dampers and you'll find the inertia ATI's are actually better at dampening.

 

ATI is a great product and I have had no trouble with mine. (Stock size).

 

My experience is also the same as already stated. I went with Way's recommendations on the ATI and experienced what he said.

2006 MCS R52; RMW Dyno-Tuned.
--Russ

 

Another great point on the ATI is that it is rebuildable !

 

I was gonna say, I don't know how it just slid right on glad you figured out it.

 

Mine took a puller and an impact wrench to remove the stock unit. I probably could have 'persuasion fit' the new one on (aka: hit it with a big hammer) but heating it made it slide right on very easily.

Here's a how-to, if you haven't found it already: Replacing the Crank Pulley - Library

 

It's funny that you should be talking about this......the crank pulley just went on my 05 MCS after 125,000 miles.

Now after some thought and discussion with a friend I have decided to tackle this job in my garage. (And after reading Arron's DIY on the subject.) And half the fun of owning this car is I can do some of this stuff myself.

I like my MINI and with what I see coming over the horizon I think this is the right course of action. My philosophy "As stock parts fail, replace with better parts."

OK.... here goes.......Which is the better part for the money? The ATI unit, the ATI 2% unit or the SFI Fluid Filled Damper? After what I have read I think I want to stay away from the lightened pulleys.

 

Go for it Fred! I went with the SFI as I got it at a really good price but either choice is good.

 

IMO, they're both quality products so save a couple bucks & go with the SFI.

Honestly the only reason I could see going for the +2% would be to get a little extra boost out of a JCW car that you didn't want to chance the hassle of changing the S/C pulley itself, anything other than the JCW I'd just use the stock Crank pulley size & swap the S/C pulleys, since the non-JCW S/C pulleys are usually so much easier to remove.

 

Not to confuse things, but both are SFI rated pulleys. There is an ATI & a PRW. Both are reported to be very good. The PRW saves some money over the ATI. I plan on putting a PRW on my MINI.

 

SFI fluid gel damper.

 

Either one, the PRW or the ATI. They both are good products.

Get the stock sized one.

 

Good luck Freddie. May easy wrenching be the order of the day!

 

My car runs the smoothest it has in years after I put the ATI pulley on it. Tamed a bunch of my nasty NVH. ATI damper + fresh belt tensioner + Vibratechnics street upper engine mount have made my car almost stock smooth again.

Certainly seems to me to be superior to stock in damping performance as well as reliability of design (can't fail like the stock one).

 

And you can change the number of ribs, say for example, for a more powerful supercharger....