928 Motorsports Sur Grip pulleys

redondoaveb · 12-11-2018, 05:15 PM

I had the Sur Grip coating added to my jackshaft pulley sc side and less than 200 miles later the belt is completely shredded. From day one I noticed a ton of belt dust around the jackshaft pulley. The Sur Grip coating chewed the belt to pieces. I'm glad I had already anticipated it was going to happen and bought another Vortech pulley to replace it.

If anyone was thinking about getting the coating added, save your money. It'll destroy your belt.

redondoaveb · 12-11-2018, 05:56 PM

Picture of my belt!

Spooler · 12-11-2018, 06:56 PM

Ouch!!!

madwi · 12-11-2018, 07:05 PM

Wow. That sucks, man. Glad it wasnt a surprise.

redondoaveb · 12-11-2018, 07:43 PM

Quote:

Originally Posted by madwi

Wow. That sucks, man. Glad it wasnt a surprise.

The only surprise was when it wasn't making any boost.

Optimiser · 12-11-2018, 08:10 PM

Quote:

Originally Posted by redondoaveb

I had the Sur Grip coating added to my jackshaft pulley sc side and less than 200 miles later the belt is completely shredded. From day one I noticed a ton of belt dust around the jackshaft pulley. The Sur Grip coating chewed the belt to pieces. I'm glad I had already anticipated it was going to happen and bought another Vortech pulley to replace it.

If anyone was thinking about getting the coating added, save your money. It'll destroy your belt.

This is another reason to only use Vortech parts like their impellers to and not 928's. I've had no issue with belt wear with Vortech's high traction pulleys.

redondoaveb · 12-11-2018, 08:22 PM

Quote:

Originally Posted by Optimiser

This is another reason to only use Vortech parts like their impellers to and not 928's. I've had no issue with belt wear with Vortech's high traction pulleys.

The problem is Vortech doesn't make a high traction 3.47 pulley. The 3.47 with the Sur Grip coating was Vortech with the 928 coating added. When I got the pulley back from coating I knew it was going to be an issue because it looked like 80 grit sandpaper.

cupcakez · 12-12-2018, 08:40 PM

Thanks for the heads up lol.
Was about to do that in the future too.

madwi · 12-12-2018, 08:45 PM

Quote:

Originally Posted by cupcakez

Thanks for the heads up lol.
Was about to do that in the future too.

I think you need to step away from the 928 products for a while.

redondoaveb · 12-12-2018, 08:56 PM

Quote:

Originally Posted by madwi

I think you need to step away from the 928 products for a while.

I just got off the phone with my mechanic. He pulled my sc today and spun the pulley by hand. He said that when spinning the pulley back and forth he can feel a slight clunking like bearing play. This is with the 928 ceramic bearings.

I don't know if slight play is normal. The pulley and impeller weren't rocking like if there was shaft play. The bearings only have maybe 500 miles on them. Being that I haven't heard of anyone else having issues with their ceramic bearings, it's hard for me to believe that mine are bad.

Needless to say, I sent an email to 928, we'll see what they say.

wideglideleon · 12-12-2018, 09:34 PM

Good luck hopefully they will make it right.

TopgunZ · 12-12-2018, 09:39 PM

I think that's just gear backlash. Turbos do not have gears so they do not witness this.

redondoaveb · 12-12-2018, 10:00 PM

Quote:

Originally Posted by TopgunZ

I think that's just gear backlash. Turbos do not have gears so they do not witness this.

Thanks Aaron. That make's sense. I'm starting to lose confidence in 928 so that concerned me.

Optimiser · 12-12-2018, 11:58 PM

Quote:

Originally Posted by madwi

I think you need to step away from the 928 products for a while.

redondoaveb · 12-13-2018, 11:47 AM

I got an email reply from Carl at 928. He verified the clunking is gear lash just like Aaron said. That's good news. Thanks Aaron.

12-11-2018, 05:15 PM	#1 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,366 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	928 Motorsports Sur Grip pulleys I had the Sur Grip coating added to my jackshaft pulley sc side and less than 200 miles later the belt is completely shredded. From day one I noticed a ton of belt dust around the jackshaft pulley. The Sur Grip coating chewed the belt to pieces. I'm glad I had already anticipated it was going to happen and bought another Vortech pulley to replace it. If anyone was thinking about getting the coating added, save your money. It'll destroy your belt. "Z"en likes this. __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

12-11-2018, 06:56 PM	#3 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,834 Drives: 2013 Nismo 370z Rep Power: 2684392	Ouch!!! redondoaveb likes this.

12-11-2018, 07:05 PM	#4 (permalink)
madwi A True Z Fanatic Join Date: Sep 2012 Location: West Michigan Posts: 31,410 Drives: Granma red Z Rep Power: 2684429	Wow. That sucks, man. Glad it wasnt a surprise. redondoaveb likes this.

12-12-2018, 08:40 PM	#8 (permalink)
cupcakez Track Member Join Date: Oct 2017 Location: California Posts: 635 Drives: 2009-7AT-Base-Coup Rep Power: 4836	Thanks for the heads up lol. Was about to do that in the future too. __________________ \|\| ECUTEK (Eugene) \|\| A2A \|\| IPP Built Motor Stage IV Spec \|\| RJM Short Block \|\| Quaife LSD \|\| KW V3 \|\| Stillen-Exhaust \|\| 11.0.1 CR \|\| 928 Full Rebuild \|\| CPZ 34 Row Oil Cooler \|\|

12-12-2018, 09:34 PM	#11 (permalink)
wideglideleon Track Member Join Date: Apr 2015 Location: Tucson AZ Posts: 569 Drives: SC 09 370Z LG 7AT Rep Power: 64085	Good luck hopefully they will make it right. redondoaveb likes this.

12-12-2018, 09:39 PM	#12 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	I think that's just gear backlash. Turbos do not have gears so they do not witness this. wideglideleon, redondoaveb and "Z"en like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

12-13-2018, 11:47 AM	#15 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,366 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	I got an email reply from Carl at 928. He verified the clunking is gear lash just like Aaron said. That's good news. Thanks Aaron. wideglideleon, "Z"en and cupcakez like this. __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

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