Those running the Aster Bracket, let me know your pulley/belt lengths
 

HU Pulley.................... Idler Position
Diameter................... Close..... Center.... Far
3.25............................... - ..........50.5?...... 51?
3.4............................... 50.5....... 51.0........ -
3.55............................. 51.0......... -.......... 51.5
3.7............................... 51.5?....... -.......... 52.5?
3.85............................... -............ -.......... 52.5
3.9................................. -............ -.......... 52.5
4.00................................-......... 52.5*........52.6??*
4.13............................... -............ -........... 53?
4.25............................... -.......... 53.5........ 53.5
4.38............................... -.......... 53.5?....... 53.5?
4.5................................. -.......... 53.5........ 54?
4.63............................... -.......... 54?.......... 54?
4.75............................... -.......... 54?.......... 54.5?
5................................... -........... -............ 55.5?

NOTE: with a 4.00/7.65 combo, and a Gates belt that is K080525, I needed to move the idler to the position furthest from the blower. Maybe the belt stretched a little, but in the middle, the tensioner would bottom out, and I got belt slip. -The Alchemist.

Belt Matrix Chart when using the Aster bracket with the CBR 8.65 crank pulley:

3.70 pulley/53.0" long 8 rib belt

3.85 pulley/53.0" long 8 rib belt

4.13 pulley/53.7" long 8 rib belt

4.50 pulley/55.0" long 8 rib belt

http://shop.brutespeed.com/Aster-Aut...er-Bracket.htm

Please let me know if you have found and pulley and belt sizes that are not listed above. Thanks! Bob

this would probably be a good sticky when all of the info is compiled

done.

Aster Bracket with 8.65" CBR crank pulley and 3.7" Supercharger pulley is 53".

Thanks! Bob :cheers:

Thanks, I added it to the link. It will take about ten minutes for it to show up from when I post this, as my website is currently saving the changes. Bob

Aster Bracket, Stock crank pulley size. 4" blower pulley 52.6" belt.

Thanks, I added it on my website, which is currently saving the addition. Bob

aster bracket stock crank pulley 3.4 blower pulley center setting 51"

Thanks! I updated it on my website too. Bob

has anyone done the 8.65 crank with a 3.6 pulley ???

You might try a 52.5" belt. Bob

I'm gonna go with the 8.65 and a 3.7. It's close to what i need. And it will be good when I cam the car too. I just don't want to have to switch belts and shit later on. So the 53 is what I'll use.

Sounds good. Bob

i can't find a 51.5 inch 8-rib belt for the life of me, 7.65 crank pulley and 3.55 blower pulley

Gates makes them.
I've ordered that exact belt length in the past from Jegs.
Part# 465-k080515 HD for the green belt. Drop the HD for just a black belt.
You will have to special order it from them since they don't stock that part #.
I order belts all the time that they don't list.

4.13 pulley with 8.65 crank pulley - Gates K080537HD.

Thanks, I appreciate it! I added it to my website. Bob

Where is the idler placed. Middle or closed to procharger or passenger side

I tried putting my 53 inch belt on with the 8.65 and 3.7 or 3.8 I forgot at the moment and it wasn't even close.

I have the idler in the hole closest to the supercharger.