Blower belt break after pulley upgrade - Page 2

Victoryred1le · 03-15-2018, 09:08 AM

Quote:

Originally Posted by TMS

That is correct. The stock belt had the same problem.

Keep in mind that when I refer to the shorter belt I am referring to the shorter of the two belts being considered for use with the new, larger 9.17" pulley. The factory belt is shorter than either the 080845 or the 080842 which are both long by comparison. The stock pulley is only 7.99" diameter.

Sent from my SM-G950U using Tapatalk

Ive got 4500 miles on my car with the 9.17 ring and 08045Hd belt with zero issues. The tensior was probably maxed out. you be shocked to see how much that thing moves under the hood at WOT

BMWM.D. · 03-15-2018, 09:47 AM

Good info. One of my anti-belt slip tactics has always been to fit the shortest possible belt that I can. This has worked great with both Gates HD belts and the Goodyear (now Continental) Gatorback belts. These belts usually stretch a bit after some use, though I think the added stiffness of the RPM belt makes this not such a great idea.

I’ll be sure to check things closely when I do my pulley. I have a few belts, but I can’t remember the sizes. After what happened to you, I’ll be more cautious.

drfeelgood · 03-20-2018, 05:35 PM

Thanks for the write up, and the thought process. Posts like this are why I love this forum

USP45 · 03-27-2018, 08:48 AM

The ATI 15% pulley does not line up correctly, or it did not work on my car. Been there, done that, my belt kept walking off of the front of the lower pulley by one rib and would hang off of the front of the pulley. Put Lingenfelter 18% on and have not had an issue since in 7,500 miles, the ATI would walk off in one pull. Maybe it was a belt issue, but I know I have not had an issue since with the Lingenfelter lower.

03-20-2018, 05:35 PM	#17
drfeelgood Drives: 2017 ZL1 Convertible A10 Join Date: Aug 2017 Location: San Gabriel, CA Posts: 992	Thanks for the write up, and the thought process. Posts like this are why I love this forum __________________ '17 White ZL1 A10 Convertible - TM ported TB - RotoFab CAI - 2.3" griptech upper pulley - Kooks 1 7/8" Headers with High Flow Cats - Borla S-type Catback - Audio Overhaul - NavTV M650-GM - 20" BlackDiForza- Michelin Pilot Sport4S - Tuned at BRC Raceworks (606rwhp/675trq) '14 CTS-V Coupe - ZL1 lid - Ported TB - Ported Snout - AirRad CAI - 8.66" lower - 2.55" upper- Greenbelt - SW Headers - SW Catback - Varimax Intercooler Pump - Track Attack Intercooler-Tuned at BRC Raceworks (551rwhp/516trq) '17 Maserati Levante- STOCK

03-15-2018, 09:47 AM	#16
BMWM.D. Drives: ZL1/335i Join Date: Apr 2014 Location: Santa Barbara Posts: 870	Good info. One of my anti-belt slip tactics has always been to fit the shortest possible belt that I can. This has worked great with both Gates HD belts and the Goodyear (now Continental) Gatorback belts. These belts usually stretch a bit after some use, though I think the added stiffness of the RPM belt makes this not such a great idea. I’ll be sure to check things closely when I do my pulley. I have a few belts, but I can’t remember the sizes. After what happened to you, I’ll be more cautious.

03-27-2018, 08:48 AM	#18
USP45 Drives: 2017 ZL1 A10 Join Date: Aug 2016 Location: McKinney TX Posts: 334	The ATI 15% pulley does not line up correctly, or it did not work on my car. Been there, done that, my belt kept walking off of the front of the lower pulley by one rib and would hang off of the front of the pulley. Put Lingenfelter 18% on and have not had an issue since in 7,500 miles, the ATI would walk off in one pull. Maybe it was a belt issue, but I know I have not had an issue since with the Lingenfelter lower.

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