View Full Version : Crank pulley size for E36


jemmons1
02-26-2008, 07:35 PM
I'm trying to calculate the impeller speed for my C30-94 and I need to know the crank pulley size for my E36. If someone could help me out that would be great.

Thanks

marc1119
02-26-2008, 07:44 PM
IIRC..I thought it was 5.75..but I am only guessing..
Just curious..why do you need to know?
AA has an 85MM blower pulley and tune that goes with your setup, that I told you about in your other thread...

Are you planning on pushing it farther than that?

milKT
02-26-2008, 07:51 PM
do it!!

marc1119
02-26-2008, 07:54 PM
do it!!


trouble maker...:lol;)

jemmons1
02-26-2008, 08:51 PM
no i'm not trying to push it farther than it should but right now I'm pretty sure I only have a 90MM pulley and I don't think I'm opperating near the 100K rpm limit on my blower. I want to bump down pulley sizes so I'd like to know what my rpm's are right now and what pulley will put me closest to the 100k limit.

marc1119
02-26-2008, 08:54 PM
no i'm not trying to push it farther than it should but right now I'm pretty sure I only have a 90MM pulley and I don't think I'm opperating near the 100K rpm limit on my blower. I want to bump down pulley sizes so I'd like to know what my rpm's are right now and what pulley will put me closest to the 100k limit.


I know you have a 90 mm pulley...
You need to get the 85mm pulley as previously posted...

milKT
02-26-2008, 09:11 PM
trouble maker...:lol;)

If you think about jumping off a cliff enough times,
eventually you'll do it.

jszy25
02-26-2008, 10:53 PM
I thought the crank pulley was 5.25" or 133mm.

Does anyone know for sure what it is on the S52?

jszy25
02-27-2008, 10:42 AM
bump for this question

marc1119
02-27-2008, 11:43 AM
bump for this question

Jonathan ..you got PM...:)