I just got done installing the 17% and 2% pulleys and WOW what a difference not a scary to drive difference but very good difference. Money well spent.

It should have come this way from the factory. Easy to spin a wheel now without trying.

Before if I was cruzin at 2500 in second gear and just floored it the boost gauge would jump up to maybe 6-7 psi then start to climb with RPM.
Now at 2500 in second and just floor it gauge jumps up to 10-11psi then starts to climb.

I recommend it and them some.....

 

Cool, good to hear.

I think a 17% pulley is the absolute limit considering the high ambient temperatures our MINIs here in Miami have to operate on a daily basis.

 

hello from a fellow Miamian!
if 17% is the absolute limit, what would be a safe limit?
I was thinking about doing the same upgrade, but wasn't sure about which percentage would give me a performance boost and be reliable in the hot weather we have.

BTW, these past 2 cold fronts weve had have been awesome for the supercharger. The mini has been running like a dream.