Not quite sure yet - I'm going to discuss with him before installing. He seemed kinda busy when I was talking to him on the phone. :smile:

 

my works mini has the 14.3% reduction pulley, will changing to a 16% pulley make any real gains

 

I just checked with Steve for you and your price installed , out the door will be $400. This is the same price as he has been charging at the previous parties.There will be no extra charge for the newer pulley.

Randy
M7 Tuning

 

Awesome! I assumed that was about the price. I'm really looking forward to it.

Also, I didn't mean to imply anything about Steve's availability on the phone. He was very helpful. I just forgot to ask about the cost of installation, and didn't want to call him back later as he seemed busy.

 

If you have never been to Steve's, you don't have any idea what busy is!!:smile:


Even on a slow day Steve is running from car to car, never refusing to talk to any customer or work on any car that pulls in.

Now fast forward to one of the MINI installation days, when 30 MINIs descend on his shop, the controlled chaos is something to behold.

Bill

 

I look forward to it!

 

Peter,

What material is your pulley made of and how much does it weigh?

Thanks,
Rob

 

Congrats - looks super and apparently a lot of thought.

 

Rob, our pulley is made from stainless steel and weighs 16.153 ounces.

Randy
M7 Tuning

edited because JLM caught me with my spell check down

 

Randy,

Is that an average weight, and, if so, how many pulleys were weighed? Also, what is the coefficient of variation in the weight? Finally, would it be fair to say that the pulley weighs about 1 lb or slightly under 1/2 kg (actually, 0.46 kg)?

 

most of the seels i have seen are pretty stained.

 

Dear Recoop,

That was an average of the first ten pullys in the box.

There was less than .018 variation bewteen the lightest and heviest weighed.

It would be fair but illegal per some NAM standards to generalize that the item in question weighed " about " 1 LB.

The test took place at 3:30 to 3:50 on 5/05/05 at 127ft above sea level.

Ambient temp was 67 degrees.

Wind was 3kts. out of the south.

The instrument used was a CAS electronic digital scale most recently checked and calibrated per ISO 9001 standards on 2/7/05




Randy
M7 Tuning

 

But what was the position of the moon?

 

I swear to god i was going to say something about that but thought i had gone just about far enough LOL . Besides the moon hasn't come up yet how the hell should I know ?

Randy
M7 Tuning

 

I'm glad (and more than a little surprised) to see that you guys still have a sense of humor. Must be all the time you get to spend driving and working on MINIs!

Good luck to you folks!

/gary

 

I am sorry Minig but I didn't notice your question until now.

To be perfectly honest going from 14.8% to a 16% pulley will make a real gain. The tricky part is what your definition of " real " might be. As with any Mini related mod each car reacts differently to modifications. Another variable is what other mods will be working in conjunction with the new pulley? Lets put it this way if you do a dyno run with your current setup and then with the 16% there will be a positive change in both the hp and torque curve and numbers. How much of a difference depends on the previously mentioned variables.
In all reality as far as seat of the pants difference goes there could be a minimal feeling of improvement but nothing like you get going from a car with no pulley to the 15% for example.
The bottom line is that your situation is not what we have set as our market for the 16%. True some are making that upgrade but we really are looking for those with no pulley to start with. I hope this helps you with your quandary.

Randy
M7 Tuning

 

Far enough??! You didn't even calibrate for sun spots!!

 

I will be changing either the SC pulley (17%) or the crank pulley on my 05 JCW...I would need a 2.7% overdrive crank pulley to equal a 17% SC pulley, however. I just don't want to go over 17%. I'm also considering a larger IC and ported&polished SC to go along with the above.

The ported&polished SC, I'm told, will flow more air. This reportedly helps to keep SC temps down. A more efficient IC is a great, albeit expensive, partner to the pulley - my opinion.

 

A ported & polished SC sounds like a very reasonable approach. Where would one go to get such a piece?

 

Funny you should ask that I presently have our final version ready to be installed next week on my car for the last series of tests. We have had a couple of cars doing long term testing for the last few months with good results. We will be announcing this product officially in the next two weeks.

Randy
M7 Tuning

 

However the moon is almost totally new. and it was in the visible sky during the afternoon hours stated. If I am correct, it was extremely cloudy and raining in the Los Angeles area.

 

most send in their OEM for p&p or buy an OEM off ebay and send it in while they drive with theirs to resell later. SOme vendors have them complete and charge you a core until you return yours.

My blower was p&p by ENDYN. I have a stock 05 blower ready for porting. no need for epoxy, already done.

 

Randy,

Now that we've had a brief humorous interlude, let's get back to the nitty-gritty. What is the basis for making the various claims about the new pulley that M7 is promoting? There has been a fair amount of discussion regarding heat transfer, but we haven't heard anything about that subject with respect to the M7 pulley. Would you or Peter kindly supply this forum some objective information/data regarding the pulley, especially the alleged "heat" properties? Inquiring minds want to know ...

 

To prove the properties of the heat shield on our M7 Technology Pulley
I simply clamped a pulley (ours and another famous brand) pulley on our
workshop wise. I proceded to use our Benzomatic Propane burner, firing
in to the back of the pulleys where the SC shaft would normaly sit, for excactly 15 seconds no more, no less.

Here's the Data:


Pulley A

Start temp 75º, 15 sec 113º, 2 Minutes 121º, 4 Minutes 121º

10 Minutes 120º

M7 Technology Pulley

Start temp 74.5º, 15 sec 104º, 2 Minutes 105º, 4 Minutes 107º

10 Minutes 102º



You can also take our Micro Vent Holes in cosideration as they do
flush cold air over the pulley/ belt interface. And as our proprietary surface
treatment and geometry will not allow belt squirm or slippage, thus not generate additional friction induced heat.

Bottom line is that our pulley does run cooler for many reasons, as indicated above.

Test equipment:

Dwyer top of the line IR Thermometer.

Bensomatic Propane Burner.

Eberhart & Co Chronograph.


Fire in the hole



Peter

Team M7 = Think outside the box

562-608-8123