Got my 19% pulley and Borla Race Exhaust and Rear Sway Bar installed today. One word: AWESOME!!!! Too bad it was raining and snowing again today in North Jersey.

My impressions: Noticed the new power from the pulley as soon as I hit the gas. Borla Race sounds great, louder than stock but not really too loud. Not as loud as my Z06 or my E46 M3 at WOT.

Didn't get to push the car hard due to the weather. I'll give the sway bar a good test in the next couple of days. It's adjustable, I have it on the softest of the three settings right now.

Greatgro got his 19% pulley installed with me today also. We had the work done at Helix down in Philly. Thanks Eric.

WHO ELSE OUT THERE WAS THE 19% PULLEY, and what do you think of it?

RaceCarDriver

 

Is that a two piece taper bore pulley not requiring heating to install it.
What material is it made of and do they offer a 17% in the same configuration.

 

Helix offers the tapor bore pulley in 17%.
HMS 2009 MCS 17% Clamp-on Style $120.00
as stated on there website www.helix13.com


17% is fun :smile:

 

Don't believe the stories you hear about heat-requiring pulleys. Eric @ Helix has done hundreds of them. Not ONE problem. In fact, it's the better on to have as they put a hub on your supercharger shaft and you can easily upgrade pulleys for a nominal cost. This way if you're new to the pulley world, you can start with a 15% and then change to a 17% or 19% at a later date. Then you could always go back to 15% or even stock for that matter.

 

RCD and GG -

Ain't it great? Are you guys running stock ECU's?
Did you do dyno runs and/or O2 logging? I'd be interested in o2 graph.

 

>>RCD and GG -
>>
>>Ain't it great? Are you guys running stock ECU's?
>>Did you do dyno runs and/or O2 logging? I'd be interested in o2 graph.

Yes, it's great. Still running stock ECU's...for now. Unfortunately not dynoed.

 

Looks like Santa came early to the house of RaceCarDriver and Greatgro.

Does anyone know if there is work being done for an ECU upgrade for the 19% pulley?

Have fun Boys.

 

>>How would you guys compare the step from 15%-19% to the step from stock to 15% ? Does it pale in comparison?
>>

I went from stock to the 19%. HUGH DIFFERENCE. Greatgro went from a 15% to 19%. I'm sure he'll post his answer.

RaceCarDriver

 

>>>>How would you guys compare the step from 15%-19% to the step from stock to 15% ? Does it pale in comparison?
>>>>
>>
>>I went from stock to the 19%. HUGH DIFFERENCE. Greatgro went from a 15% to 19%. I'm sure he'll post his answer.
>>
RaceCarDriver,
Were you advised to do any other mods to make the 19% pulley upgrade safer for your MINI?
Smaller pulley belt or larger intercooler?

>>

 

Safer? I don't think that there's been any credible evidence that the 19% is not safe for the engine. I do think you have to put a shorter belt on, though.

 

Thanks for the reply but I prefer the taper bore design, I have done heat shrink interference fit applications on other parts. Do you know what material theirs is made of.

 

They installed a new belt. I believe it is 3/4" or 1" shorter. I think a belt isn't needed for the 15%, it's recommended for the 17% and necessary for the 19%.

 

vdubdoug:

The clamp on style pulley is made for the taper bore pulleys like the ALTA? Cool, I never knew they had 17% and 19% for the taper bore design already. I've been waiting for these.

Thanks for the info.

 

the P&D taper fit, that I tested for 169 ft-lbs breakaway torque on the shaft, can be had in: stock, 15%, 17%, 19% and 22% (the max). knock yourselves out.
those with the interference fit original P&D pulley can bolt to their existing, installed hub: stock, 15%, 17%, 19%

so far the most useful power effect from the greate than 15% reduction is a higher and earlier torque max (not so much a redline hp improvement) but this is what makes a faster car.

 

OMG, 22%?????

Now I have something to dream about! :smile:

 

>>
>>the P&D taper fit, that I tested for 169 ft-lbs breakaway torque on the shaft, can be had in: stock, 15%, 17%, 19% and 22% (the max). knock yourselves out.
>>those with the interference fit original P&D pulley can bolt to their existing, installed hub: stock, 15%, 17%, 19%
>>
>>so far the most useful power effect from the greate than 15% reduction is a higher and earlier torque max (not so much a redline hp improvement) but this is what makes a faster car.

Jim, concerning the above P&D taper fit pulleys, what material are they made of ?? Do they have a stop machined in like the Alta so the pulley alignment is spot on ??Jim, concerning the above P&D taper fit pulleys, what material are they made of ?? Do they have a stop machined in like the Alta so the pulley alignment is spot on ??

 

they do have a stop to register against the end of the blower shaft; the material is 304 stainless steel.

 

John,

Is there room to remove and replace the taper fit pulley without jacking the motor (provided of course, that the original pulley has been removed)? Would just a belt tensioner tool and allen wrench be necessary to swap in this case?

 

I haven't personally tried that, but I just checked and it looks like it will work, though the space is tight. The taper grip needs to be popped using the push-off screws after you loosen the six clamp bolts, but there seems to be room.

 

Andy:

Yes, there is room to remove a P&D taper-fit pulley without jacking the motor. However, I think that it's actually easier to do a quick jack method, since you don't have to wrestle with the polsition of the pulley and the bolts, and monkeying around with releasing and applying the belt tension.

JLM:

304?

BlueMCS:

I might consider a heartier wheel and tire package before you put the 22% on. Those wreaths will break up at launch with that much torque.

 

>>Andy:
>>
>>Yes, there is room to remove a P&D taper-fit pulley without jacking the motor. However, I think that it's actually easier to do a quick jack method, since you don't have to wrestle with the polsition of the pulley and the bolts, and monkeying around with releasing and applying the belt tension.
>>
>>JLM:
>>
>>304?
>>
>>BlueMCS:
>>
>>I might consider a heartier wheel and tire package before you put the 22% on. Those wreaths will break up at launch with that much torque.


Is that Eric from Helix? Everythings great Eric. Lots of power now. Was hoping Borla Race would be louder, but still sounds cool. I think I'll take my Blizzacks off for a few days and test out that rear sway bar.

Glenn

"RaceCarDriver"

 

oops! I meant 303 ops:

303 machines easier but is not for welding. 304 welds better, but is not so easy to machine. Other than that the mechanical properties are similar.

 

And the answer is...NO! The 19% is fantastic! Granted it's quite cold out now, but I'd estimate that the 15% to 19% jump gives HALF - ) is now the new king. The MINI is SOOOOOO much mroe driveable now. It has more power in the
TWO THOUSAND RPM range than a stock MINI has in the 5 grand range. You can cruise around in third gear at only 30mph and mash the gas and still easily pass other cars and weave in and out of traffic. It really transforms the MINI like the 15% did.
I find myself not revving MINI much at all now. There is good power in the 2k RPM range. Very good torque in the 3k's. I find myself accelerating quite fast yet shifting by 4-4.5k RPMs - like I was in the break-in period or something. Most of my driving is in "suburban areas" and I have yet to floor it in first or second gear. I don't need to and don't really have room to! I love this mod!
One more thing. I was never sure if I had a stumble or not. From what I read in the stumble threads, it doesn't sound like I do. But I do feel a BOG in low RPMs after you pull out the clutch in first gear. I also have the 17" all-season S-lite runflats. Adding the 15% pulley helped a lot. Obviously the cold weather helps quite a bit also. But there's always a little hint of it. Well not any more!!! It's very smooth. Which brings me to another point - if you want smoother acceleration, get the 19%! Add enough torque and that'll take care of any bog-type issues.

Yes. I asked Eric this question and they (Helix and GIAC) will be doing versions for the 15%, 17% and 19%. 15% though should be out first with the others not far behind.

That's it for now....Thanks Eric!


BTW...I did not dyno my MINI so the above results are based solely on the ol' butt-dyno. Additional power mods I have are the madness intake and UUC exhaust. Ok, one more thing: Most people with the 15% pulley would agree: This is how the S should have came from the factory.. That's how I feel about the 15%. Well with the 19%, this is how it should feel MODDED!

 

jLm:

So the taper bore pulley is a complete set which includes the taper fit hub? In other words I wont be using any part of my ALTA pulley anymore if I get your taper bore pulley? Just need some clarificatoins, thanks!

 

yes