MINI2

brady · Oct 20th, 2005, 03:24 PM

hey guys, just wanted to know if many of you have tried the 2% crank pulley mod and if there was much of a performance gain from it, was it worthwhile? havnt heard it mentioned much so am just currious about it. thanks

Shawnster · Oct 20th, 2005, 05:06 PM

Quote: Originally Posted by brady

hey guys, just wanted to know if many of you have tried the 2% crank pulley mod and if there was much of a performance gain from it, was it worthwhile? haven't heard it mentioned much so am just curious about it. thanks

*bump* Also how does it effect reliability and interact with pulley reductions like 15% etc?

brady · Oct 21st, 2005, 06:01 PM

ANYBODY??

obehave · Oct 21st, 2005, 06:12 PM

Quote: Originally Posted by brady

ANYBODY??

Here's a decent thread that covers the topic fairly well.
There is much more discussion on NAM about them than there is here.

Profpatpending · Oct 21st, 2005, 09:53 PM

I will be fitting one to my car as soon as pilo releases the version with the built in vibration dampner,
I already have a 15% pulley and am going to fit the crank to bring me up to 17%.
by itself you wont notice any gain from the 2% crank pulley but couple it up with a SC pulley and now your cooking.
I am also in Ireland you can pm me if you need any further info.

Profpatpending · Oct 21st, 2005, 09:57 PM

Quote: Originally Posted by Shawnster

*bump* Also how does it effect reliability and interact with pulley reductions like 15% etc?

as far as reliability is concerned many cars have these mods fitted for a long time without any issues but that is no guarantee, that is the chance you take when modifying a car.

Hartge · Oct 22nd, 2005, 06:19 PM

I think i prefer the OEM crank pulley. I just feel that the driving is not as nice as before. Yes, there is better power but I just dont like the engine vibration. Pilo's with the vibration damper should be Ok

twig · Oct 23rd, 2005, 10:23 PM

Quote: Originally Posted by Profpatpending

as far as reliability is concerned many cars have these mods fitted for a long time without any issues but that is no guarantee, that is the chance you take when modifying a car.

Not true if your talkling the lightweight 2% crank. Its fairly new. See http://store.webbmotorsports.com/for...opic.php?t=707

SteveS · Dec 2nd, 2005, 10:03 PM

I had a 2% pulley fitted. Engine runs rougher at idle and other low RPM modes. There is distinct noise like a slight rattle of components then.

roland2003 · Dec 3rd, 2005, 10:08 AM

Hi Guys, check out the GTT +3% crank pulley on our site . Ours differs in that it will not come loose in use . This is because we use a stainless steel sleeve as an interference fit on the shaft. The pulley then bolts to this using 6 small bolts. This way it doesnt risk coming loose in the way a one piece alloy type can due to the different expansion rates of the alloy over the steel crankshaft. Our item is also HARD anodised rather than colour or clear anodise which is soft. For those who race we can supply a second stock diameter pulley (without a second steel sleeve) ;this allows quick pulley change without the need for any pullers or gas torch. This way you have (say) -15% or -18% in a jiffy. These pulleys are suitable for road or race.
Regards Roland GT Tuning

brucesouthern · Dec 3rd, 2005, 04:37 PM

I'll back up what Roland say's, he fitted this along with a whole host of other parts to my JCW car back in the early summer and its a worthwhile conversion. The car is used in competition and revved very hard and has been 100% reliable, it eliminates the problems associated with small supercharger pulleys throwing belts.
Jeff

Oct 20th, 2005, 03:24 PM	#1
brady MINI2 Regular Join Date: Jun 2004 Location: dublin Local Time: 10:03 AM Posts: 80 Offline	2% crank pulley ?? hey guys, just wanted to know if many of you have tried the 2% crank pulley mod and if there was much of a performance gain from it, was it worthwhile? havnt heard it mentioned much so am just currious about it. thanks

Oct 20th, 2005, 05:06 PM	#2 (permalink)
Shawnster The Works! My Classifieds Join Date: Jul 2003 Local Time: 05:03 AM Posts: 151 Offline	yeah Quote: Originally Posted by brady hey guys, just wanted to know if many of you have tried the 2% crank pulley mod and if there was much of a performance gain from it, was it worthwhile? haven't heard it mentioned much so am just curious about it. thanks bump Also how does it effect reliability and interact with pulley reductions like 15% etc? 04 John Cooper Works MCS *Grab a gear and GO !* Quaife LSD - Madness Intake - Mania Stage 2 Clutch - Short Shift Kit - Ultrik Aluminum Flywheel

Oct 21st, 2005, 06:01 PM	#3 (permalink)
brady MINI2 Regular Join Date: Jun 2004 Location: dublin Local Time: 10:03 AM Posts: 80 Offline	??? ANYBODY??

Dec 3rd, 2005, 10:08 AM	#10 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 11:03 AM Posts: 2,654 Offline	Hi Guys, check out the GTT +3% crank pulley on our site . Ours differs in that it will not come loose in use . This is because we use a stainless steel sleeve as an interference fit on the shaft. The pulley then bolts to this using 6 small bolts. This way it doesnt risk coming loose in the way a one piece alloy type can due to the different expansion rates of the alloy over the steel crankshaft. Our item is also HARD anodised rather than colour or clear anodise which is soft. For those who race we can supply a second stock diameter pulley (without a second steel sleeve) ;this allows quick pulley change without the need for any pullers or gas torch. This way you have (say) -15% or -18% in a jiffy. These pulleys are suitable for road or race. Regards Roland GT Tuning www.gttuning.com

Dec 3rd, 2005, 04:37 PM	#11 (permalink)
brucesouthern Mini addict Join Date: Oct 2002 Location: west of england Local Time: 11:03 AM Posts: 48 Offline	crank pulley I'll back up what Roland say's, he fitted this along with a whole host of other parts to my JCW car back in the early summer and its a worthwhile conversion. The car is used in competition and revved very hard and has been 100% reliable, it eliminates the problems associated with small supercharger pulleys throwing belts. Jeff

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Oct 21st, 2005, 06:12 PM	#4 (permalink)
obehave Mini Mod Join Date: Sep 2002 Local Time: 06:03 AM Posts: 9,254 Offline	Quote: Originally Posted by brady ANYBODY?? Here's a decent thread that covers the topic fairly well. There is much more discussion on NAM about them than there is here.

Oct 21st, 2005, 09:53 PM	#5 (permalink)
Profpatpending Forum Hardened Join Date: Jul 2005 Local Time: 10:03 AM Posts: 73 Offline	I will be fitting one to my car as soon as pilo releases the version with the built in vibration dampner, I already have a 15% pulley and am going to fit the crank to bring me up to 17%. by itself you wont notice any gain from the 2% crank pulley but couple it up with a SC pulley and now your cooking. I am also in Ireland you can pm me if you need any further info.

Oct 21st, 2005, 09:57 PM	#6 (permalink)
Profpatpending Forum Hardened Join Date: Jul 2005 Local Time: 10:03 AM Posts: 73 Offline	Quote: Originally Posted by Shawnster bump Also how does it effect reliability and interact with pulley reductions like 15% etc? as far as reliability is concerned many cars have these mods fitted for a long time without any issues but that is no guarantee, that is the chance you take when modifying a car.

Oct 22nd, 2005, 06:19 PM	#7 (permalink)
Hartge SuperSoniC Join Date: Oct 2003 Location: Malaysia Local Time: 06:03 PM Posts: 282 Offline	I think i prefer the OEM crank pulley. I just feel that the driving is not as nice as before. Yes, there is better power but I just dont like the engine vibration. Pilo's with the vibration damper should be Ok

Oct 23rd, 2005, 10:23 PM	#8 (permalink)
twig MINI2 Regular Join Date: Apr 2005 Local Time: 06:03 AM Posts: 183 Offline	Quote: Originally Posted by Profpatpending as far as reliability is concerned many cars have these mods fitted for a long time without any issues but that is no guarantee, that is the chance you take when modifying a car. Not true if your talkling the lightweight 2% crank. Its fairly new. See http://store.webbmotorsports.com/for...opic.php?t=707

Dec 2nd, 2005, 10:03 PM	#9 (permalink)
SteveS MINI2 Regular Join Date: Jul 2002 Location: Santa Ana, CA Local Time: 03:03 AM Posts: 126 Offline	I had a 2% pulley fitted. Engine runs rougher at idle and other low RPM modes. There is distinct noise like a slight rattle of components then.

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