R50/53 LugNut Hunt
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1st Gear
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LugNut Hunt
I need a replacement lugnut for my '05 MCS, where in the world can I find one? And, on a side-question, what are people referring to when they say 15% pulley? My un-educated guess would be, 'it's a larger pulley coming off the engine, to feed the supercharger some more delicious 'spins', for more boost".
Later Guys,
-Sim D
Later Guys,
-Sim D
Last edited by musiq021; Jan 3, 2008 at 12:21 AM.
1st Gear
Joined: Jul 2007
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I purchased some Lugs from the MINI dealer near me. It was the only place that I could find them and they where 5$ each. And your un-educated guess is correct with one exception, it's a 15% reduction in size thus feeding some more spin.
Yes, the smaller the supercharger pulley, the faster it spins. The most common size for an aftermarket pulley is 15% reduction, but there is a 16%, many 17%, and even 19% reduction pulleys out there.
The smaller you go, the more boost you get, but you also get more heat buildup, (possibly necessitating a larger intercooler), and lower reliability over the long term. With the 19% pulleys, for instance, you need a smaller belt, and probably bigger fuel injectors. You also run the risk of ruining your supercharger, especially if you have increased your engine's red line, with ECU tuning.
Let's say you run your engine up to red line a lot. On a race track, you may hit the red line, and stay up in it for long periods of time. That makes the supercharger spin faster than its' own rated red line, (using a 19% pulley, specifically). Spinning your supercharger this fast for long periods is very bad!
That is why it is many people's opinion that a 15% pulley is safest, and most reliable of all the smaller pulleys offered, especially for track use if you love hitting the rev limiter.
The smaller you go, the more boost you get, but you also get more heat buildup, (possibly necessitating a larger intercooler), and lower reliability over the long term. With the 19% pulleys, for instance, you need a smaller belt, and probably bigger fuel injectors. You also run the risk of ruining your supercharger, especially if you have increased your engine's red line, with ECU tuning.
Let's say you run your engine up to red line a lot. On a race track, you may hit the red line, and stay up in it for long periods of time. That makes the supercharger spin faster than its' own rated red line, (using a 19% pulley, specifically). Spinning your supercharger this fast for long periods is very bad!
That is why it is many people's opinion that a 15% pulley is safest, and most reliable of all the smaller pulleys offered, especially for track use if you love hitting the rev limiter.
That, or put a WTB ad in the Marketplace - odds are someone has a few.
, picked one up at our Mini dealer in Milwaukee, guys there were a bit too pretentious for me to look forward to going back, but all in all I left happier than when I came.
I need a replacement lugnut for my '05 MCS, where in the world can I find one? And, on a side-question, what are people referring to when they say 15% pulley? My un-educated guess would be, 'it's a larger pulley coming off the engine, to feed the supercharger some more delicious 'spins', for more boost".
Later Guys,
-Sim D
Later Guys,
-Sim D
(mine is an 06 and I don't know which of the 2 sizes it is) which are "free" to whomever wants to pay shipping
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