15% is fine.mobile23 said:just read a magazine called "Roundel" (nov. issue)..... it mentions about upgrade supercharger with 19% pulley requires the engine rev limit be reduced to 6,200rpm. is that true? so what about 15% and 17% pulley??
Thing is, how long will the engine last at that sweet spot. I believe the tolerances that car manufacturers set is also for longevity in the wear and tear department.AvatarX said:
meant to be from what i read on MINI2, the supercharger still has a 100% life span up to a 16% pulley..mobile23 said:thanks. so 15% is the problem-free pulley upgrade, right?
Nah, the stock rev limiter @ 6,800 works great on track when paying attention to all the other stuff. I try and shift just before it kicks in when I'm winding it out. just for the pleasure of it..kyriian said:if 16% and it still retains the 7000 rpm limit, then i'd think a 17% can still go 7k, but you'd be pushing it far... i'd think 6700 would be my upper limit if i had a 17%
That last sentence is just ignorant.enzothemaddog said:Its 6500 not 6200.
+ if you're putting a 19% pulley in, you should be prepared for higher temps. Although you wont get 100% life out of the engine, its still close to that mark with the 19%. Dont forget, these engines are almost bulletproof. If you're a pansy, keep a stock Mini and dont bother tuning.
Check out this thread .johnD said:Does anyone know what the maximum RPM for the supercharger for our cars? And what is the corresponding engine speed for it with say a 19%. I have seen the data before but I couldn't find it now. And what RPM does the supercharger loose efficiency because of heat?