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Outlaw818 · Mar 21st, 2006, 06:20 AM

hey everyone i have a 03 cooper and i wanted to know about Pulleys.....

Please TEACH ME about pulleys... What are they??? Whats the difference between 15%, 17%, and 19% pulleys??? What pulley comes in the original MC??? How does it help your car??? Whats the disadvantage of pulleys??? How much are they??? Do you recommend it?

lol sorry for all those questions but i only want to learn....

thanks

KPKalle · Mar 21st, 2006, 06:27 AM

I've moved this to Engine & Drivetrain Tuning. Somebody here should be able to give you the answer you want

CoolJamJar · Mar 21st, 2006, 06:31 AM

If you have an MC (not an MCS) then the pulleys that everyone talks about, is sadly missing from your car.
The pulley is the supercharger drive pulley and changing the size of it increases or decreases the speed at which the supercharger spins, effectively forcing more air into the engine.
Sorry for the bad news (being a fellow Cooper owner) about your missing 'pulley' !!!

Outlaw818 · Mar 21st, 2006, 06:47 AM

Quote: Originally Posted by CoolJamJar

If you have an MC (not an MCS) then the pulleys that everyone talks about, is sadly missing from your car.
The pulley is the supercharger drive pulley and changing the size of it increases or decreases the speed at which the supercharger spins, effectively forcing more air into the engine.
Sorry for the bad news (being a fellow Cooper owner) about your missing 'pulley' !!!

thank god lol it doesnt concern me now...

Paul · Mar 21st, 2006, 09:57 AM

A happy ending.

insane*mini · Mar 21st, 2006, 11:43 AM

Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol.

15% - Track use, now is this a bigger pulley? It spins slower correct?
17& - Street use?
19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest?

Then Crank Pulleys

2%
3%

I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct?

Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys?

Thanks!
-Cody

CoolJamJar · Mar 21st, 2006, 04:15 PM

Quote: Originally Posted by insane*mini

Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol.

15% - Track use, now is this a bigger pulley? It spins slower correct?
17& - Street use?
19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest?

Then Crank Pulleys

2%
3%

I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct?

Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys?

Thanks!
-Cody

I recommend clicking on the SEARCH button, pulling up a comfy chair, boiling up a jug of coffee and settle in for some serious reading....

St00ge · Mar 22nd, 2006, 09:44 AM

Quote: Originally Posted by insane*mini

Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol.

15% - Track use, now is this a bigger pulley? It spins slower correct?
17& - Street use?
19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest?

Then Crank Pulleys

2%
3%

I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct?

Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys?

Thanks!
-Cody

I'd also suggest doing what Cody suggested...but if you can't be bothered

, tell me and i'll tell you the difference

insane*mini · Mar 22nd, 2006, 01:19 PM

Quote: Originally Posted by CoolJamJar

I recommend clicking on the SEARCH button, pulling up a comfy chair, boiling up a jug of coffee and settle in for some serious reading....

Believe me, I've been searching for 2 months now!

Mar 21st, 2006, 06:20 AM	#1
Outlaw818 PEPPER WHIT E COOPER Join Date: Nov 2005 Location: Glendale, CA Local Time: 02:29 PM Posts: 88 Offline	Please Teach Me!!!! hey everyone i have a 03 cooper and i wanted to know about Pulleys..... Please TEACH ME about pulleys... What are they??? Whats the difference between 15%, 17%, and 19% pulleys??? What pulley comes in the original MC??? How does it help your car??? Whats the disadvantage of pulleys??? How much are they??? Do you recommend it? lol sorry for all those questions but i only want to learn.... thanks

Mar 21st, 2006, 06:27 AM	#2 (permalink)
KPKalle Knight of the Round Table Join Date: Apr 2004 Location: Midhurst, Sussex Local Time: 09:29 PM Posts: 21,580 Offline	I've moved this to Engine & Drivetrain Tuning. Somebody here should be able to give you the answer you want Global Moderator

Mar 21st, 2006, 09:57 AM	#5 (permalink)
Paul Trained Monkey My Classifieds Join Date: Jan 2001 Location: Bedfordshire Local Time: 09:29 PM Posts: 40,354 Online	A happy ending. Our trials and tribulations living in a "bleeding edge" eco house... Oxley Woods Living

Mar 21st, 2006, 11:43 AM	#6 (permalink)
insane*mini polizei -NAM and Focaljet Join Date: Oct 2005 Location: Cincinnati, Ohio Local Time: 05:29 PM Posts: 552 Offline	Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol. 15% - Track use, now is this a bigger pulley? It spins slower correct? 17& - Street use? 19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest? Then Crank Pulleys 2% 3% I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct? Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys? Thanks! -Cody "Gizmo" - 03' IB/B MCS!

Mar 22nd, 2006, 09:44 AM	#8 (permalink)
St00ge 8/10 on the Stoogometer Join Date: Aug 2005 Location: Melbourne Local Time: 07:29 AM Posts: 2,835 Offline	Quote: Originally Posted by *insanemini** Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol. 15% - Track use, now is this a bigger pulley? It spins slower correct? 17& - Street use? 19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest? Then Crank Pulleys 2% 3% I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct? Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys? Thanks! -Cody I'd also suggest doing what Cody suggested...but if you can't be bothered , tell me and i'll tell you the difference Black MCS

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Mar 21st, 2006, 06:31 AM	#3 (permalink)
CoolJamJar DON'T PANIC! My Classifieds Join Date: Oct 2005 Location: Oran Park, Sydney Local Time: 08:29 AM Posts: 886 Offline	If you have an MC (not an MCS) then the pulleys that everyone talks about, is sadly missing from your car. The pulley is the supercharger drive pulley and changing the size of it increases or decreases the speed at which the supercharger spins, effectively forcing more air into the engine. Sorry for the bad news (being a fellow Cooper owner) about your missing 'pulley' !!!

Mar 21st, 2006, 06:47 AM	#4 (permalink)
Outlaw818 PEPPER WHIT E COOPER Join Date: Nov 2005 Location: Glendale, CA Local Time: 02:29 PM Posts: 88 Offline	Quote: Originally Posted by CoolJamJar If you have an MC (not an MCS) then the pulleys that everyone talks about, is sadly missing from your car. The pulley is the supercharger drive pulley and changing the size of it increases or decreases the speed at which the supercharger spins, effectively forcing more air into the engine. Sorry for the bad news (being a fellow Cooper owner) about your missing 'pulley' !!! thank god lol it doesnt concern me now...

Mar 21st, 2006, 04:15 PM	#7 (permalink)
CoolJamJar DON'T PANIC! My Classifieds Join Date: Oct 2005 Location: Oran Park, Sydney Local Time: 08:29 AM Posts: 886 Offline	Quote: Originally Posted by *insanemini** Not quite....I would still loved to be taught! I will hopefully be getting an MCS soon and am also lost on pullies. I've read about them over and over again, but it's all non sense to me, lol. 15% - Track use, now is this a bigger pulley? It spins slower correct? 17& - Street use? 19% - Street use, but since the belt is small, it slips correct? And doesn't this pulley spin the fastest? Then Crank Pulleys 2% 3% I have no idea what they do...? But I do know you can get a 17% pulley and match that with a 2% crank to achive a 19% correct? Which pulley would you recommend, being a daily driver car, that sees the track maybe 1-2/year? Which spin faster, slower? What the the realibility issues with the different pulleys? Thanks! -Cody I recommend clicking on the SEARCH button, pulling up a comfy chair, boiling up a jug of coffee and settle in for some serious reading....

Mar 22nd, 2006, 01:19 PM	#9 (permalink)
insane*mini polizei -NAM and Focaljet Join Date: Oct 2005 Location: Cincinnati, Ohio Local Time: 05:29 PM Posts: 552 Offline	Quote: Originally Posted by CoolJamJar I recommend clicking on the SEARCH button, pulling up a comfy chair, boiling up a jug of coffee and settle in for some serious reading.... Believe me, I've been searching for 2 months now! "Gizmo" - 03' IB/B MCS!

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