MINI2

futureal33 · Nov 27th, 2006, 12:53 PM

Hi all,

Does anyone have this part fitted, if so what are the benefits of having it done? Can you notice any BHP gains or Torque? And is it any more/less strain on the SC??

Cheers

Babes · Nov 27th, 2006, 01:15 PM

I have 3% GTT crank pulley, the benefits are easily noticable with a good increase in torque and BHP. Dont have exact figures but the seat of your pants dyno says its all good

futureal33 · Nov 27th, 2006, 01:20 PM

and if you dont mind me asking, what other mods have you got on your car?

I am thinking about the GTT 210/220 pack and the crank pulley - is this what you have done?

Cheers

Babes · Nov 27th, 2006, 03:11 PM

I have a JCW with crank pulley and idle pulley running MTH software. I did get an updated map for the crank pulley but found the original MTH map seemed to run better.

tnoy66 · Nov 27th, 2006, 04:53 PM

I've got the GTT 220 with 1%crank pulley, can't tell you the difference the crank pulley makes on it's own as I had it all fitted in one go

Very happy with it all as a complete package and highly recommend it.

You won't need to go bigger than 1% with a GTT kit, as Roland uses a 17% supercharger pulley.
Everything is kept within safe limits

duncanbanana · Nov 27th, 2006, 09:36 PM

i have an Alta 3% larger lightened Crank pulley with a 15% smaller Alta supercharger pulley with Bluefin remap amongst other things

M1OY CS · Nov 28th, 2006, 09:45 AM

I have one too but same problem as Weasel. It was fitted at the same time as my package. I have 220 + crank pulley and let me just tell you...... ITS MENTAL! thats after a coulpe of months now too! Novelty is still there!

tnoy66 · Nov 28th, 2006, 12:50 PM

Oh, I can assure you, it's not a problem

futureal33 · Nov 28th, 2006, 01:34 PM

Hehe loving the comments, but you guys are just going to end up making me spend more money!!!!!!
M10y CS can I ask what % crank pulley you have installed, is it possible / advisable to get a 2% with the 17% pulley?

Cheers

M1OY CS · Nov 28th, 2006, 03:57 PM

futureal33 - I have the same as Weasel +1% Crank pulley and 17% s/c pulley. I just left Roland to it cause i knew he knew what was best. Like Weasel said its the safer option much safter than 19% pulleys and other crank sizes.

roland2003 · Nov 29th, 2006, 08:34 AM

Hi Guys we do 3 sizes of 'Lightweight GTT Crank Pulleys' :-
'Stock diameter.'... For use with GTT 17% pulley or other conversions where no additional boost is required/desired.
'+1%'........................For use with typically 15-17% pulleys.
'+3%'........................For use with JCW cars (approx 12%) or other makes upto a max of 15% pulleys. In most cases no other changes are required but some cars ( ie that were already pinking) may need retarding of the ignition timing .
Best Regards Roland GTT

Fisher · Dec 3rd, 2006, 05:53 PM

What about the damper in original pulley.

It is anything wrong if there isn't a bumper with new light crank pulley? What is the funcion of the damper?

Babes · Dec 4th, 2006, 05:50 AM

what i have noticed with no damper on pulley is:
slight loss of idle quality, barely noticble and when cold a rattling sound if the revs are too low taking off.

To offset these minor things you have an extremely noticable extra boost that makes ya grin from ear to ear!

roland2003 · Dec 4th, 2006, 09:05 AM

.Hi Babes ..... I dont think your rattle is related to the pulley ,but yes idle quality may be marginally worse in certain situations than stock,(nothing like as bad as using a lightweight flywheel ) and the effect is very very marginal.
This is the best first mod for any JCW car for sure.
Balance it's 100% perfect. How do we achieve this? -Its machined on every surface to very close concentricity & runout tolerances, and is not constructed of cast parts and then bonded together with masses of rubber seperating the centre & outer sections. This results in runout and imbalance ,and is difficult for the manufacturer to avoid/correct to any high degree of accuracy,and will never be as good in either of these 2 areas as the GTT item.
Best Regards Roland GTT

Babes · Dec 5th, 2006, 12:44 AM

Hi Roland
The rattle is definately an issue with the fitment of the crank pulley i believe, it is better than it was after BMW refit it with heat but it is still there. Never had any rattles before it was put on. This is not a manufacturing defect, the crank pulley is perfect, rather an issue with BMW being clueless when fitting it, im the first in Western Australia to have one fitted to my knoweledge so they are learning using my car.

Fisher · Dec 5th, 2006, 05:46 PM

What about 1% oversize nad 19% KMT pulley?

KMT-Slovenian tuner of MINI's. He worked at factory which manufactured a lot of pulleys. I have an alta before, but that has cut end grooves, so I go to KMT (I am worked there - in this factory) because they has better quality of pulleys. There are radius at the end off grooves (i can give the picture ones and anothers). They do more then 200.000 pulleys on a years with no complaint.

So if i give now 1% oversized crank pulley. It is too much? And what kind of grooves it has?
Do you have any detailed picture? I am very demand about that at pulleys. I work with them every day so....

Tell me the angle of this grooves to please.

What about the weight, how much i get?

Bye

roland2003 · Dec 6th, 2006, 09:04 AM

Hi Guys, OK I wouldnt recommend a larger crank pulley with a -19% SC pulley. We do a stock size one which still has the benefit of much reduced mass. (One pound rather than seven pounds

) On the subject of the quality /accuracy of the V groove tooth form,there are BS standards (or similar?) for this with dimensions for the entire profile, inc. pitch ,agles, rads, height etc.
I have noticed on some pulleys the V form is truncated with a 'flat' at the top between each V. If the form is created using a form tool plunging at the correct pitch you will get that. What we do is 'rough form' the grooves using this method, then using a very small small tool actually finish turn the entire V form by profiling it. -Much more accurate,better finish,&,puts the rads on the top of the V's as you mention. A good V form will grip better on the pulleys & reduce wear on the belt too.
Best Regards Roland GTT

MiniFr34k · Dec 6th, 2006, 11:29 PM

roland, what colour loctite do u rcommend when fitting one of these cranks?

roland2003 · Dec 7th, 2006, 09:12 AM

Hi , pulley comes with full instructions . We use high strength ,which is red if loctite (271 I think) or Permabond 118 or Wurth Green for the sleeve onto the crank and the 6 small bolts. Nothing on the outside of the steel sleeve, and medium strength on the stock M12 bolt through the centre,
Best Regards Roland GTT

peterkoestenberger · Dec 9th, 2006, 11:13 AM

Quote: Originally Posted by roland2003 (original)

Hi , pulley comes with full instructions . We use high strength ,which is red if loctite (271 I think) or Permabond 118 or Wurth Green for the sleeve onto the crank and the 6 small bolts. Nothing on the outside of the steel sleeve, and medium strength on the stock M12 bolt through the centre,
Best Regards Roland GTT

Hi Roland,
Do you have a 1% oversized crank pulley? It's not listed on your homepage.
I wrote you an enquiry but till yet you don't answer! Please contact me!

Nov 27th, 2006, 12:53 PM	#1
futureal33 225bhp / 360 nm R56 T My Classifieds Join Date: Oct 2006 Location: Preston, Lancashire Local Time: 08:38 PM Posts: 334 Online	Oversized, Lightened Crank Pulley Hi all, Does anyone have this part fitted, if so what are the benefits of having it done? Can you notice any BHP gains or Torque? And is it any more/less strain on the SC?? Cheers Just bought a Mini Cooper S !!

Nov 27th, 2006, 01:15 PM	#2 (permalink)
Babes Cruising In The Minge My Classifieds Join Date: Sep 2004 Location: Perth Local Time: 03:38 AM Posts: 740 Offline	I have 3% GTT crank pulley, the benefits are easily noticable with a good increase in torque and BHP. Dont have exact figures but the seat of your pants dyno says its all good 2003 BRG/W JCW MCS 2002 PS/PS JCW MC 1970 BRG/W MK2 Morris Cooper S

Nov 27th, 2006, 01:20 PM	#3 (permalink)
futureal33 225bhp / 360 nm R56 T My Classifieds Join Date: Oct 2006 Location: Preston, Lancashire Local Time: 08:38 PM Posts: 334 Online	and if you dont mind me asking, what other mods have you got on your car? I am thinking about the GTT 210/220 pack and the crank pulley - is this what you have done? Cheers Just bought a Mini Cooper S !!

Nov 27th, 2006, 03:11 PM	#4 (permalink)
Babes Cruising In The Minge My Classifieds Join Date: Sep 2004 Location: Perth Local Time: 03:38 AM Posts: 740 Offline	I have a JCW with crank pulley and idle pulley running MTH software. I did get an updated map for the crank pulley but found the original MTH map seemed to run better. 2003 BRG/W JCW MCS 2002 PS/PS JCW MC 1970 BRG/W MK2 Morris Cooper S

Nov 27th, 2006, 04:53 PM	#5 (permalink)
tnoy66 POP..POPPOP..POP Join Date: Sep 2004 Location: Huddersfield Local Time: 08:38 PM Posts: 1,807 Offline	I've got the GTT 220 with 1%crank pulley, can't tell you the difference the crank pulley makes on it's own as I had it all fitted in one go Very happy with it all as a complete package and highly recommend it. You won't need to go bigger than 1% with a GTT kit, as Roland uses a 17% supercharger pulley. Everything is kept within safe limits Pepper White MCS Registry All Welcome

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Nov 27th, 2006, 09:36 PM	#6 (permalink)
duncanbanana Yeah...I know !!! Join Date: Jun 2003 Location: North West Local Time: 08:38 PM Posts: 1,202 Offline	i have an Alta 3% larger lightened Crank pulley with a 15% smaller Alta supercharger pulley with Bluefin remap amongst other things

Nov 28th, 2006, 09:45 AM	#7 (permalink)
M1OY CS Danger!Moddings addictive My Classifieds Join Date: Aug 2006 Location: Essex Mini2'er Local Time: 08:38 PM Posts: 299 Offline	I have one too but same problem as Weasel. It was fitted at the same time as my package. I have 220 + crank pulley and let me just tell you...... ITS MENTAL! thats after a coulpe of months now too! Novelty is still there! Nearly fully loaded DS/B MCS GTT

Nov 28th, 2006, 12:50 PM	#8 (permalink)
tnoy66 POP..POPPOP..POP Join Date: Sep 2004 Location: Huddersfield Local Time: 08:38 PM Posts: 1,807 Offline	Oh, I can assure you, it's not a problem Pepper White MCS Registry All Welcome

Nov 28th, 2006, 01:34 PM	#9 (permalink)
futureal33 225bhp / 360 nm R56 T My Classifieds Join Date: Oct 2006 Location: Preston, Lancashire Local Time: 08:38 PM Posts: 334 Online	Hehe loving the comments, but you guys are just going to end up making me spend more money!!!!!! M10y CS can I ask what % crank pulley you have installed, is it possible / advisable to get a 2% with the 17% pulley? Cheers Just bought a Mini Cooper S !!

Nov 28th, 2006, 03:57 PM	#10 (permalink)
M1OY CS Danger!Moddings addictive My Classifieds Join Date: Aug 2006 Location: Essex Mini2'er Local Time: 08:38 PM Posts: 299 Offline	futureal33 - I have the same as Weasel +1% Crank pulley and 17% s/c pulley. I just left Roland to it cause i knew he knew what was best. Like Weasel said its the safer option much safter than 19% pulleys and other crank sizes. Nearly fully loaded DS/B MCS GTT

Nov 29th, 2006, 08:34 AM	#11 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 08:38 PM Posts: 2,726 Offline	Hi Guys we do 3 sizes of 'Lightweight GTT Crank Pulleys' :- 'Stock diameter.'... For use with GTT 17% pulley or other conversions where no additional boost is required/desired. '+1%'........................For use with typically 15-17% pulleys. '+3%'........................For use with JCW cars (approx 12%) or other makes upto a max of 15% pulleys. In most cases no other changes are required but some cars ( ie that were already pinking) may need retarding of the ignition timing . Best Regards Roland GTT www.gttuning.com

Dec 3rd, 2006, 05:53 PM	#12 (permalink)
Fisher MINI2 Regular Join Date: Dec 2004 Local Time: 09:38 PM Posts: 241 Offline	What about the damper in original pulley. It is anything wrong if there isn't a bumper with new light crank pulley? What is the funcion of the damper?

Dec 4th, 2006, 05:50 AM	#13 (permalink)
Babes Cruising In The Minge My Classifieds Join Date: Sep 2004 Location: Perth Local Time: 03:38 AM Posts: 740 Offline	what i have noticed with no damper on pulley is: slight loss of idle quality, barely noticble and when cold a rattling sound if the revs are too low taking off. To offset these minor things you have an extremely noticable extra boost that makes ya grin from ear to ear! 2003 BRG/W JCW MCS 2002 PS/PS JCW MC 1970 BRG/W MK2 Morris Cooper S

Dec 4th, 2006, 09:05 AM	#14 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 08:38 PM Posts: 2,726 Offline	.Hi Babes ..... I dont think your rattle is related to the pulley ,but yes idle quality may be marginally worse in certain situations than stock,(nothing like as bad as using a lightweight flywheel ) and the effect is very very marginal. This is the best first mod for any JCW car for sure. Balance it's 100% perfect. How do we achieve this? -Its machined on every surface to very close concentricity & runout tolerances, and is not constructed of cast parts and then bonded together with masses of rubber seperating the centre & outer sections. This results in runout and imbalance ,and is difficult for the manufacturer to avoid/correct to any high degree of accuracy,and will never be as good in either of these 2 areas as the GTT item. Best Regards Roland GTT www.gttuning.com

Dec 5th, 2006, 12:44 AM	#15 (permalink)
Babes Cruising In The Minge My Classifieds Join Date: Sep 2004 Location: Perth Local Time: 03:38 AM Posts: 740 Offline	Hi Roland The rattle is definately an issue with the fitment of the crank pulley i believe, it is better than it was after BMW refit it with heat but it is still there. Never had any rattles before it was put on. This is not a manufacturing defect, the crank pulley is perfect, rather an issue with BMW being clueless when fitting it, im the first in Western Australia to have one fitted to my knoweledge so they are learning using my car. 2003 BRG/W JCW MCS 2002 PS/PS JCW MC 1970 BRG/W MK2 Morris Cooper S

Dec 5th, 2006, 05:46 PM	#16 (permalink)
Fisher MINI2 Regular Join Date: Dec 2004 Local Time: 09:38 PM Posts: 241 Offline	What about 1% oversize nad 19% KMT pulley? KMT-Slovenian tuner of MINI's. He worked at factory which manufactured a lot of pulleys. I have an alta before, but that has cut end grooves, so I go to KMT (I am worked there - in this factory) because they has better quality of pulleys. There are radius at the end off grooves (i can give the picture ones and anothers). They do more then 200.000 pulleys on a years with no complaint. So if i give now 1% oversized crank pulley. It is too much? And what kind of grooves it has? Do you have any detailed picture? I am very demand about that at pulleys. I work with them every day so.... Tell me the angle of this grooves to please. What about the weight, how much i get? Bye

Dec 6th, 2006, 09:04 AM	#17 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 08:38 PM Posts: 2,726 Offline	Hi Guys, OK I wouldnt recommend a larger crank pulley with a -19% SC pulley. We do a stock size one which still has the benefit of much reduced mass. (One pound rather than seven pounds ) On the subject of the quality /accuracy of the V groove tooth form,there are BS standards (or similar?) for this with dimensions for the entire profile, inc. pitch ,agles, rads, height etc. I have noticed on some pulleys the V form is truncated with a 'flat' at the top between each V. If the form is created using a form tool plunging at the correct pitch you will get that. What we do is 'rough form' the grooves using this method, then using a very small small tool actually finish turn the entire V form by profiling it. -Much more accurate,better finish,&,puts the rads on the top of the V's as you mention. A good V form will grip better on the pulleys & reduce wear on the belt too. Best Regards Roland GTT www.gttuning.com

Dec 6th, 2006, 11:29 PM	#18 (permalink)
MiniFr34k fr34king n00b! My Classifieds Join Date: Dec 2004 Location: Sydney Local Time: 05:38 AM Posts: 2,173 Offline	roland, what colour loctite do u rcommend when fitting one of these cranks?

Dec 7th, 2006, 09:12 AM	#19 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 08:38 PM Posts: 2,726 Offline	Hi , pulley comes with full instructions . We use high strength ,which is red if loctite (271 I think) or Permabond 118 or Wurth Green for the sleeve onto the crank and the 6 small bolts. Nothing on the outside of the steel sleeve, and medium strength on the stock M12 bolt through the centre, Best Regards Roland GTT www.gttuning.com

Dec 9th, 2006, 11:13 AM	#20 (permalink)
peterkoestenberger MINI2 Newbie Join Date: Jul 2005 Local Time: 08:38 PM Posts: 6 Offline	Quote: Originally Posted by roland2003 (original) Hi , pulley comes with full instructions . We use high strength ,which is red if loctite (271 I think) or Permabond 118 or Wurth Green for the sleeve onto the crank and the 6 small bolts. Nothing on the outside of the steel sleeve, and medium strength on the stock M12 bolt through the centre, Best Regards Roland GTT Hi Roland, Do you have a 1% oversized crank pulley? It's not listed on your homepage. I wrote you an enquiry but till yet you don't answer! Please contact me!

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