agreed, nor will i

But iam an agressive driver (something im not proud of) and my car has seen some track time, so wondering if this alta unit will cope with my abuse. if jfunkmd and any others have taken theirs to the track, thats some good indication.

 

nothing wrong with respecting the engineer's intentions. are there any balanced, non-lightened enlarged cranks out there? like a +2%, ~5 lb. crank?

 

Other than the vaporous PIlo unit I haven't read of any.

 

The damper was to damp out low frequency vibrations which were promoted by the accessory belt drive which drives the supercharger. The low rpm operation is what prompted the damper. On my car, with the 2% alta crank pulley installed I had a little low speed vibration which concerned me. I thought it might shorten lifespan of the supercharger, possibly cause the supercharger vanes to rattle excessively. Raising the idle (stepping on throttle at stoplight) eliminated the vibration/resonance. I took it off and put on the 05 damper which Randy kindly provided me. He also observed that my belt tensioner assy did not seem right. I brought it to the dealer and the dealer replaced it on warranty. After replacement of belt tensioner assy and before reinstalling stock crank pulley, I stll noticed the vibration. Note, I think this might have just been a feature of my particulare 03 MCS as others apparently have not experienced it. That or maybe I'm just supersensitive. Anyway, my car is back to being smooth at low rpm now.

Except I now have a different low rpm resonance coming from the OBX header. I'll live with that since the sound of it, in combo with my Ebay catback is sensorial sensational.

 

I've taken mine to two track events with our Lightweight 2% Pulley. At one of the events Will Turner drove the car for two sessions , THAT was a test I have over 11,000 miles on the pulley now , many of them HARD canyon miles , with no issues.

Randy
M7 Tuning

 

One thing, the stock pulleys has to cheaper to produce since it is cast steel and then machined only where needed. The lightened pulleys are aluminum with all surfaces machined.

BTW - anyone who has owned a Neon can see that DC had their fingers all over this one. After the intake, the lightened pulley was the biggest bag for the buck on the 2.0L.

I am tempted. real tempted. This kind of reminds me when the first 15% pulleys came out. Engines were goning to blow everywhere according to the "ones in the know"....hmmmm

 

Does anyone know if a lightened crank pulley is one of the mods which tweaks the GP up a few more hp over a standard JCW?

 

Very good question. Also, does anyone know if the late build 2005 and 2006, with the 5 lb CP has a few more ponies over the earlier 7 lb one? BTW I emailed DINAN's technical department last week regarding their claim that there was engine damage when they added a lightweight CP to the MINI S. So far no response

 

They do, but there were other tweaks, including a new SC design.

 

I spoke to an engineer at Eaton that worked on the specific SC for the Mini. Asked him if the coating on the JCW SC makes any additional HP. He said that the coating was done to increase the life of the SC and, while technically the coating could increase boost a very minor amount, you would never see the difference between a coated & non-coated SC on the dyno. Further, in time the coating will ware somewhat, making even less hp difference. He said, guessing we are talking 10ths. of a HP. BTW: Since late 2004 and all of 2005-06 SC on the MCS are the same, JCW or just plain MCS, same SC

 

So then the small gain in 7/04 is likely due to the lighter crank pulley? And the question remains, did they go lighter still on the GP?

 

OT.....Doesn't it **** off anyone but me that BMW will not take upgrading the power plant seriously.....maybe the new turbo will have potential..... I know that Randy is already thinking of upgrades..... I would like a factory option af about 250 to the wheels...is that asking too much..Oh yeah, with a warranty.

 

Then you'll have a cheaper BMW that is faster and specs better than a 3 Series. They won't go for that.

 

I don't get it..though I have heard this before many times...why do they have a 2.0 liter One series in Europe....is there no market canibalization in Europe, c'mon.....(one long edit of my real opinion)

 

but to the planners, this engine is already dead!

And in Europe, they acutally sell the Mini One! (less than 100 hp, just an ECU flash away from a Cooper).

I guess we in the us just want More!

Matt

 

What's the price on those things anyway?

 

good point.....

you can look at the Int. BMW site to see the car maybe get a price

 

Indeed. Canibalization is something BMW wants to avoid...

 

I understand that Tony but they are just as exposed to canibalization in Europe as they are in the US... but they don't bring in the One series to the US while it is sold in Europe..... there are other reasons is all I am thinking

 

how many more sales would they get if they offer a 250 HP version? I think the Traveller (or whatever it will be called) will access many more checkbooks than an UberWorks model will. A bunch of the people who want the more powerful one will mod it anyway, and we mod the S now...

I think the more interesting item is that the stellar handling from the Mini isn't as much better from the rest as it used to be. And with the other car companies making better Hot-Hatches, what will Mini do to stay ahead of the game? Some more power at less than JCW pricing sure wouldn't hurt. Or handling kits that didn't include 18" heavy wheels..... The price they sell for could really support better technology than is delivered, that's for sure!

Matt

 

point # 1 - I know at least 1 for sure

point # 2 - could not agree more

 

crank pullies....

I'm thinkin' that maybe I'll go for a new stock one, and save the 2 lbs. Then I'll get to see first hand where the weight came off. If it's near the rotation access, it's not a big deal, and will be of minor benefit. If it's from the outer radius, then it will really help.

Wieght differences with rotation parts are close to meaningless, unless you know where the weight came from, so you can tell the changes in moment of inertia!

Matt

 

which is preferable>? lightedn crank or lightn flywheel? only thing is that i cant imagine driving in traffic with lighten flywheel.

 

for power, the flywheel is a much better bet. More weight comes off at a larger radius. And you can have your harmonic dampener too! But if you go too much lighter in the flywheel, that's when the rattles and clanks happen at idle....

Matt

 

The lightweight flywheel is a better mod but it is many times more expensive. As for driving issues as long as you do not go too lite we have found no problems . Ours is 14.5 about half of a stock one. I did what i think is the best test imaginable regarding the change in normal driving characteristics. I did the change, brought the car home and had my wife take it on a spin for about 30 min. She came back and I asked her if she noticed anything and the answer was NO. I would say our flywheel is just about perfect LOL . As for the positives the more rapid acceleration and throttle response was dramatic. SInce day one I have tried to get rid of the " drive by wire lag " and feel I have gone as far as I can towards minimizing that. Between the flywheel, AGS and Light crank pulley it has the quickest throttle response of any Mini I have ever been in

Randy
m7 tuning