Nissan 370Z Forum - View Single Post - Custom length Supercharger Serpentine belt

TBatt · 01-02-2017, 07:01 PM

I used the NAPA pulley that Pauly Z found for us:
Pulley- 54 mm #36375
Belt- Micro V 6 rib #061093 OR MODIFIED K081088 along with a 12x1.75x50mm bolt, a 12x1.75mm hex nut and 6ea. 7/16 inch washers for spacers. I had to make a spacer to make up the difference between the inside diameter of the pulley and the 12mm bolt. A step up shank bolt would be best but you use what you have available. If you need a spacer let me know and I can make one for you. I may just go ahead and design a step spacer so that I don't have to use all of the washers. Let me see how it fits and then I can go from there on the design.

The belt cut down will happen tomorrow night (the wife has plans for me tonight). The belt I got is the fleet HD belt so it should hold up well. The bad part is that it is green........Heck as long as it doesn't slip I don't care what color it is!

I checked the K080188 eight rib belt last night and the rib size and spacing is exactly like the K071045 (stock Stillen) belt so removing one rib will make the correct belt for us at the 109 3/8 length. This is way cheaper than the $10K setup fee and 100 minimum buy from Gates.

01-02-2017, 07:01 PM	#13 (permalink)
TBatt Track Member Join Date: Apr 2013 Location: Huntsville, AL Posts: 832 Drives: 2019 GT-R Rep Power: 20168	I used the NAPA pulley that Pauly Z found for us: Pulley- 54 mm #36375 Belt- Micro V 6 rib #061093 OR MODIFIED K081088 along with a 12x1.75x50mm bolt, a 12x1.75mm hex nut and 6ea. 7/16 inch washers for spacers. I had to make a spacer to make up the difference between the inside diameter of the pulley and the 12mm bolt. A step up shank bolt would be best but you use what you have available. If you need a spacer let me know and I can make one for you. I may just go ahead and design a step spacer so that I don't have to use all of the washers. Let me see how it fits and then I can go from there on the design. The belt cut down will happen tomorrow night (the wife has plans for me tonight). The belt I got is the fleet HD belt so it should hold up well. The bad part is that it is green........Heck as long as it doesn't slip I don't care what color it is! I checked the K080188 eight rib belt last night and the rib size and spacing is exactly like the K071045 (stock Stillen) belt so removing one rib will make the correct belt for us at the 109 3/8 length. This is way cheaper than the $10K setup fee and 100 minimum buy from Gates. __________________ RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!