Hello NAM. What’s the belt size / part number fir 19% supercharger pulley plus 2% crank pulley?

going methanol soon and want to upgrade my current set up (15> 2%).

pulley brand recommendation?

 

Hopefully this helps. I just installed a 17% Cravenspeed pulley, but it see they dont do a 19% pulley.

Belt 1 : Gen 1 MC Stock : Gates 1050mm / K060406
Belt 2 : Gen 1 MCS Stock Length or Stock SC Pulley w/ 2% Crank Pulley : Gates 1404mm / K060547
Belt 3 : Gen 1 MCS JCW or 15% Pulley: Gates 1379mm / K060535
Belt 4 : Gen 1 MCS 17% or 19% Pulley: Gates 1367mm / K060532
Belt 5 : Gen 1 MCS 15% or 17% Pulley w/ 2% Crank Pulley : Gates 1385mm / K060539
Belt 6 : Gen 1 MCS Air Conditioning Delete Belt. Will run Crank, Alt., and Supercharger : Gates 856mm / K060331 Note: Must remove idler pulley (see photo).
Belt 7 : Gen 2 MC/MCS All Models N12 & N14 up to 04/10 : Continental 6K906 Length: 906mm Long (11-28-7-566-789)
Belt 8 : Gen 2 MC/MCS All Models N16 & N18 04/10 - 2015 : Continental 6K895 Length: 894mm Long (11-28-7-604-014)
Belt 9 : Gen 2 MC/MCS All Models N12/16 & N/1418 Air Conditioning Delete Belt Dayco 6PK0692 Length: 692mm Long
Belt 10 : Gen 3 MC/MCS All Models F Cars : Continental 6PK1715 Length: 1715mm Long (11-28-8-573-252)

Source: https://www.detroittuned.com/mini-cooper-belts/

Recommended Sizes for different sized crank / alternator:

6PK1390 - 0% (Stock) Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1390 - 0% (Stock) Supercharger, +2% Crank, 0% (Stock) Alternator
6PK1390 - 0% (Stock) Supercharger, +2% Crank, +5% Alternator
6PK1390 - 0% (Stock) Supercharger, +2% Crank, +10% Alternator
6PK1375 - 11% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1375 - 15% Supercharger, +2% Crank, 0% (Stock) Alternator
6PK1375 - 15% Supercharger, +2% Crank, +5% Alternator
6PK1375 - 15% Supercharger, +2% Crank, +10% Alternator
6PK1368 - 13% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1368 - 14% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1368 - 15% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1368 - 17% Supercharger, +2% Crank, 0% (Stock) Alternator
6PK1368 - 17% Supercharger, +2% Crank, +5% Alternator
6PK1368 - 17% Supercharger, +2% Crank, +10% Alternator
6PK1360 - 16% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1360 - 17% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1360 - 19% Supercharger, +2% Crank, 0% (Stock) Alternator
6PK1360 - 19% Supercharger, +2% Crank, +5% Alternator
6PK1360 - 19% Supercharger, +2% Crank, +10% Alternator
6PK1353 - 18% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1353 - 19% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator
6PK1353 - 20% Supercharger, 0% (Stock) Crank, 0% (Stock) Alternator

Source: https://orranje.co.uk/product/mini-g...ulley-belt-r53

 

I had that setup and could not put that sized belt on, would not fit. ended up with the 535 belt.

 

wow, thanks !

this is what i have now and its tight
Belt 5 : Gen 1 MCS 15% or 17% Pulley w/ 2% Crank Pulley : Gates 1385mm / K060539

i should be able to squeeze in 2%?

 

you confirmed the 535 fits better than 539?

17% + 2% crank

 

Any other options besides KAVS 19%?

 

I did not try a 539, I had the 532 and no way was I getting it on. The 535 fit for both the 15 & 17% pulley's I've had on there. Currently running the 15%.

I also have the stock sized ATI pulley (slight size difference from OEM IIRC)

 

I have the 6PK1368 for the ATI 2% & 17% and it fits good

 

looking for a belt for 19 and 2%

 

oh it bought have 19 and 2% crank

 

No one runs 19 + 2 in here at all?

 

I know, was just sharing my experience

 

was wondering my self as I too was looking into a 19

 

looks like no ones running 19 set up =)

 

19% and 2%? That little blower will be screaming!

 

my a hardly pass 6k anyway. No autocross. Plus doing methanol.

should be fine on occasional pulls.

 

So Kavs even makes a 20% mmmm tempting http://www.kavsmotorsport.com/mini-t...charger-tuning

i heard from a. Little birdie that wmw will be carrying a 19% soon too

 

Eaton would **** a brick if they knew what RPM and pressure ratio people here run the M45 at. The Miata guys respect the data.
If the result of your setup is, let's ballpark 20psi, that equates to a pressure ratio of 2.36. From the graph below, you will notice that 2.36 is so far out of this blower's efficiency that it's not even on the map. Godspeed.

 

wish I’m running 20 psi lol

with my current set up. 17 % & 2% and all the mods and tune i barely even see 14 lbs of boost.

hardly stay above 5500 , adding methanol and with the occasional pull would be awesome.

 

Do you have a built high-flowing head? Otherwise your boost pressure should be much higher.
Spinning the little M45 like that, you might consider a dual-nozzle system; one pre and one post-blower. Have fun.

 

ya I’m working on 4 injectors directly in the the runners.

and with headers and cam. I noticed the boost wasn’t that high

 

Aha, that explains, im running 17,4 psi at the moment

17% pulley + 2% ati + big tb + hobo intercooler (has some flow drop)

 

So am I correct in assuming that a 1353mm long belt SHOULD be good for a 19% pulley ? I too will be running a 19% but there so much contradicting info out there as usual..
I'm finding belt recommendations that are varying 10mm between belts. And I KNOW with these stock sc's , a few mm will cause big belt slip.
I'd preferably like to run a gatorback belt but I'm not sure. Is the gatorback 4060532 the 1353mm long or close to belt ? Ofcourse I can't find the exact measurements of the belt which you'd think that would be listed..lol ugh