Question on pullie ratio's

[mustangsquared]

Ok, I undertand what U/D's do but my question is if I INCREASE the Diameter
of the CRANK pullie...will that speed up the other pullies? I always mess up the 1 turn to 2 turn concept. (Note I have U/D's but was going to add a 85 crank pully becuase it is suppose to slow things down a little (compared to standard 91 pully) but be faster then a U/D crank pullie.

 

[mustangsquared]

TTT

 

[maverick0716]

The crank pulley is where you get all the hp....so if you change that out there's no point in even having them (it would be almost no gain from stock) You might as well put the stock pulleys back on if you're worried about it and sell your underdrives.

 

[cjman15]

i'll buy 'em