Drivetrain Are 19% pullies still the red-headed Step Child?
SpiderX,
Great post. This sums up exactly how i drive my MCS. Sure, i smack the redline now & again, but 85% of my driving is shifting between 4500-5500. I do less than 10K mikes a year, so putting a new belt on the car once a year is no big deal for me.
Just spoke with Eric at helix, and basically explaining what i do, how I drive, etc., he just said "19" I plan to do the 19% by the summer (with colder plugs and a shorter belt) and I will report back with my findings.
-jac
Great post. This sums up exactly how i drive my MCS. Sure, i smack the redline now & again, but 85% of my driving is shifting between 4500-5500. I do less than 10K mikes a year, so putting a new belt on the car once a year is no big deal for me.
Just spoke with Eric at helix, and basically explaining what i do, how I drive, etc., he just said "19" I plan to do the 19% by the summer (with colder plugs and a shorter belt) and I will report back with my findings.
-jac
Originally Posted by SpiderX
Guys like Randy who track their cars religiously almost never drive south of 5K while most of us on the street shift in between 4-5K. The SC does not get near redline at this rpm and is still working just fine just moving its power down the rpm line.... The M45 SC is the limiting factor on our engines... it is really only meant to be used on engines from 180 - 200 hp max.... the heat that is built up at high rpm THEORETICALLY is destructive to making power.... I can not prove this because my car keeps making power and pulls very strong to red line (go for a ride w me at the Dragon) I have shed a belt 75 mi from home and had to sit with my date for a truck...which sucked.....
for me I am very happy with my 19%.... I have the belt checked regularly and all is good..... do you really drive your car all day over 5K?
for me I am very happy with my 19%.... I have the belt checked regularly and all is good..... do you really drive your car all day over 5K?
6th Gear
Joined: Jan 2005
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From: DC
Originally Posted by etalj
JCW has the same charger as the 05 and 06 cooper S, which is the same as an 02-04 Cooper S's SC, just with teflon coating on the rotors.... the JCW just has a 14.3% pulley instead of our oversized hockey puck of a pulley
From my understanding the blower is replaced. The only difference between the JCW & the more recent SC's is there is a smaller pulley pressed onto the shaft of the JCW unit. Sounds like BMW/MINI/JCW feels it is easier to just replace the unit than to mess around with the pulley. And since you are taking off the SC to replace the head, the SC is already off the car, it's just an R&R job.
Originally Posted by lhoboy
Then why does the JCW kit come with a replacement blower for the stock '05-'06 MCS?
1st Gear
Joined: Feb 2006
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From: Tappan NY
I'm going down to Eric on Monday... I opted for the 19% pulley, based on his advise, CAI, larger injectors, short throw shift, Miltec exhaust, HD rear sway bar and GIAC ECU.... I'm pumped up for the ride back! I'll keep all posted.
Matt.
Matt.
Wow - that is one i have never heard. Now that would be interesting!
Originally Posted by XAlfa
Of course, then there is the unsubstantiated rumor that the drive ratio for the water pump is reduced in the replacment blowers to compensate for the smaller pulley...
Damn - full plate! Good luck with that, take pics & post results....
Also, that is a lot of mods at once - make sure to take it pretty easy until you find the new limits of the car. Once helped a guy put swaybars on a miata, and almost had to help him pull said miata out of a ditch when he really threw it into the first corner we came up on! Car acted a little different!
Enjoy!
Also, that is a lot of mods at once - make sure to take it pretty easy until you find the new limits of the car. Once helped a guy put swaybars on a miata, and almost had to help him pull said miata out of a ditch when he really threw it into the first corner we came up on! Car acted a little different!
Enjoy!
Originally Posted by MiniMatt1
I'm going down to Eric on Monday... I opted for the 19% pulley, based on his advise, CAI, larger injectors, short throw shift, Miltec exhaust, HD rear sway bar and GIAC ECU.... I'm pumped up for the ride back! I'll keep all posted.
Matt.
Matt.
5th Gear
Joined: Apr 2005
Posts: 737
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From: Ewing, NJ
I am thinking of takign a trip to helix tomorrow to check out the shop and have a talk with Eric. Also going to test out the Corbeau seats in his car to see if I like them. If things go well, then I will schedule a date for them to install a pulley on my car.
Garrett
Garrett
Originally Posted by MiniMatt1
I'm going down to Eric on Monday... I opted for the 19% pulley, based on his advise, CAI, larger injectors, short throw shift, Miltec exhaust, HD rear sway bar and GIAC ECU.... I'm pumped up for the ride back! I'll keep all posted.
Matt.
Matt.
when you get home.have fun
6th Gear
Joined: Jan 2006
Posts: 1,808
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Originally Posted by lhoboy
Then why does the JCW kit come with a replacement blower for the stock '05-'06 MCS?
The JCW just has a 14.3% smaller pulley on the new supercharger
6th Gear
Joined: Dec 2004
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From: NJerz
Originally Posted by MINIotaple
Now, the question is, should I go 19%/2% or just 17%/2%?
http://www.dinancars.com/whitepapersFile.asp?ID=5
mb
5th Gear
Joined: Apr 2005
Posts: 737
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From: Ewing, NJ
Well I went to Helix today to ask some questions and check out the shop, well with them not being busy today, it led me to have them install a 17%! Something I was not planning on doing lol. It feels faster and has more pickup, but I will have to drive the car more to get a deff. feel!
Garrett
P.S. Eric is an awesome guy, he answered all my questions and just all around great to talk to!
Garrett
P.S. Eric is an awesome guy, he answered all my questions and just all around great to talk to!
It's been covered to death!
Originally Posted by mbcoops
This may have been covered elsewhere, but I'm not positive so I'll post it. I would read this before deciding to put the crank pulley on a car. It's not the be-all and end-all of opinions/research, but it is something to consider.
http://www.dinancars.com/whitepapersFile.asp?ID=5
mb
http://www.dinancars.com/whitepapersFile.asp?ID=5
mb
A short Cooper/Cooper S crank is very, very different than a long BMW 6 cyl crank when it comes to ressonance and the need for a dampener!
For shame, search and ye shall find!
Matt
6th Gear
Joined: Aug 2004
Posts: 1,629
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From: Pipe Creek, Texas
The Cooper crank pulley consists of three pieces and one of them is a rubber vibration dampener ring. I have one and I’ve repeated this over and over yet the myth of the un-dampened Cooper crank pulley continues to be perpetuated.
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Joined: Jan 2005
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From: DC
Originally Posted by garretwp
Well I went to Helix today to ask some questions and check out the shop, well with them not being busy today, it led me to have them install a 17%!
6th Gear
Joined: Jan 2005
Posts: 2,223
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From: DC
Originally Posted by ScuderiaMini
17%, should i or should i not? is it worth upgrading to 17% or should i jump on 19%?
Just call me Mr Perpetuator!
Originally Posted by k-huevo
The Cooper crank pulley consists of three pieces and one of them is a rubber vibration dampener ring. I have one and I’ve repeated this over and over yet the myth of the un-dampened Cooper crank pulley continues to be perpetuated.
But the miles are adding up on all those running the lightened,undamped pulley. It's looking better and better with each day...
Matt
