Still having trouble with SLP ud pulley - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BT96SS · 09-14-2018, 06:45 PM

As the title states I am still having trouble with my SLP ud pulley. Ever since installed it squeals real bad when I turn the ac on. The belt that it calls for in the instructions is not a stretch fit belt and seems to be too long. If any of you have one on your car could you see what belt number you have and from what manufacturer. The belt i have is the gates belt it calls out for. It seems to loose to me. I have checked to make sure the pulleys are not misaligned and they look good. It used to just squeal for a few seconds when I turned the ac on but not its constant. I almost wish I would have just left enough alone. My car is a 2012 if that matters. Might be different from the 2010 that the instructions are for.

GONIF · 09-15-2018, 11:31 AM

Call SLP and tell them about it , pretty sure they have run into this B4.

alaskacamaro · 09-16-2018, 01:35 AM

Mine started squealing after 1200 miles. Turned out the underpulley bent inward sometime after install and the tech was amazed the belt hadn’t completely ripped or pulled off. Called SLP of course but since it’s had been past the 90 day mark, they were not going to do anything about it. Put the stock one back on and no issues since. Kept the bent pulley as a reminder to myself that just because a company buys a name doesn’t mean you will be getting the same quality parts and service as the original. I hope your issue is not the same as mine....

Chris49066SS · 09-16-2018, 07:37 AM

Fluidampr is very reputable for their dampers. Pro Stock John on here uses the Powerbond and hasn't had any issues for many K miles, so i just went with the Powerbond damper off of GPIs website. Installing it this Friday!

christianchevell · 09-16-2018, 09:49 AM

There were reported cases of the SLP underdrive pulleys falling apart just like stock pulleys and IMO they look cheap and as if they have no net effect dampening vibrations like a Fluidampr or ATI etc....so good luck there. Many just stay stock as the money for a good dampener is often overlooked in their budget ;short term need budget. Once on my last engine I bought a TSP underdrive; myself and my tuner looked at it and decided to not install it as it was just a couple hunks of metal separated by a rubber ring kind of old school junk which would do nothing really to stop harmful vibrations from being radically cammed with a rocking engine being hard on the timing chain and bearings...…

And BTW I do not underdrive the A/C fluidampr does not do that, the electric with my idle of 950 takes care of itself and truthfully Underdrives net like ZERO 0 nul zilch usually HP..... I got mine for the longevity of the engine. And BTW the directions for the Fluidampr even came with the wrong Gates belt # but had the right length WTF is up with stupid instructions monkey typing mofo's huh?

Chris49066SS · 09-16-2018, 10:49 AM

Thats like the 3rd instance I've heard of the wrong belt size for the Fluidampr.

xc_SS/RS · 09-16-2018, 07:11 PM

Get an ATI super damper or fluidampr pulley and don't look back

WHAMMO · 09-17-2018, 09:32 PM

Yeah my car developped a belt problem with my UD; got a squeaky AC belt. I changed it and tried some different lenghts and now the belts are noisy, like if theyre not aligned properly. It doesnt squeak anymore.

Mine is ASP . Im losing voltage when using AC, but I run a 18.5lbs clutch it might affect it more than before idk. Still I didnt have the clutch when it started, 1 year after the cam install. I have it since 2014, so its a good product imo.

Next is going to be either ATI or Fluid damper.

BT96SS · 09-19-2018, 09:32 AM

I may just have to bite the bullet and have the factory one put back on. Sucks as I have to buy the belts over again. I looked at it again yesterday and it looked aligned correctly. When the ac kicked on I actually saw it stop turning and squeal. I would blame the ac but I was messing around with water under the hood and the belt was wet. So at this point I'm stumped.

charles71 · 09-19-2018, 11:50 AM

I had the same issue when I had a SLP 25% under drive pulley installed. At parking lot speeds the steering wheel was all but impossible to turn and the car would stall repeatedly. I don't know how the shop did it but the belt was routed incorrectly. Once I noticed and corrected it never had a problem since.

09-14-2018, 06:45 PM	#1
BT96SS Drives: 2012 Camaro RS/SS Join Date: Sep 2016 Location: Texas Posts: 38	Still having trouble with SLP ud pulley As the title states I am still having trouble with my SLP ud pulley. Ever since installed it squeals real bad when I turn the ac on. The belt that it calls for in the instructions is not a stretch fit belt and seems to be too long. If any of you have one on your car could you see what belt number you have and from what manufacturer. The belt i have is the gates belt it calls out for. It seems to loose to me. I have checked to make sure the pulleys are not misaligned and they look good. It used to just squeal for a few seconds when I turned the ac on but not its constant. I almost wish I would have just left enough alone. My car is a 2012 if that matters. Might be different from the 2010 that the instructions are for.

09-15-2018, 11:31 AM	#2
GONIF Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE Join Date: Feb 2014 Location: The Left lane PHOENIX AZ Posts: 2,626	Call SLP and tell them about it , pretty sure they have run into this B4. __________________ OLD GUY FLYING FAST AND LOW

09-16-2018, 01:35 AM	#3
alaskacamaro Drives: 2012 2SS 45TH Anniversary Join Date: Mar 2012 Location: Kentucky Posts: 720	Mine started squealing after 1200 miles. Turned out the underpulley bent inward sometime after install and the tech was amazed the belt hadn’t completely ripped or pulled off. Called SLP of course but since it’s had been past the 90 day mark, they were not going to do anything about it. Put the stock one back on and no issues since. Kept the bent pulley as a reminder to myself that just because a company buys a name doesn’t mean you will be getting the same quality parts and service as the original. I hope your issue is not the same as mine.... __________________ PFADT stage 3 suspension kit, SW LTH, SW cat less retro exhaust, MGW short throw, 3.91 gears, MRR Z28 wheels, Roto Fab CAI, SLP underpully, 255cc ported heads, TSP 229/236 Cam, ZL1 pump, Street Slayer Twin Carbon clutch, ID850 injectors, Snow Stage III Meth kit 480whp/460wtq tuned by Dynosty

09-16-2018, 07:37 AM	#4
Chris49066SS Drives: 2010 SS L99 Join Date: Sep 2018 Location: Missouri Posts: 1,634	Fluidampr is very reputable for their dampers. Pro Stock John on here uses the Powerbond and hasn't had any issues for many K miles, so i just went with the Powerbond damper off of GPIs website. Installing it this Friday! __________________ Previous PB:11.079 @ 122.99mph.. New setup time: TBD The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371

09-16-2018, 09:49 AM	#5
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	There were reported cases of the SLP underdrive pulleys falling apart just like stock pulleys and IMO they look cheap and as if they have no net effect dampening vibrations like a Fluidampr or ATI etc....so good luck there. Many just stay stock as the money for a good dampener is often overlooked in their budget ;short term need budget. Once on my last engine I bought a TSP underdrive; myself and my tuner looked at it and decided to not install it as it was just a couple hunks of metal separated by a rubber ring kind of old school junk which would do nothing really to stop harmful vibrations from being radically cammed with a rocking engine being hard on the timing chain and bearings...… And BTW I do not underdrive the A/C fluidampr does not do that, the electric with my idle of 950 takes care of itself and truthfully Underdrives net like ZERO 0 nul zilch usually HP..... I got mine for the longevity of the engine. And BTW the directions for the Fluidampr even came with the wrong Gates belt # but had the right length WTF is up with stupid instructions monkey typing mofo's huh? __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

09-16-2018, 10:49 AM	#6
Chris49066SS Drives: 2010 SS L99 Join Date: Sep 2018 Location: Missouri Posts: 1,634	Thats like the 3rd instance I've heard of the wrong belt size for the Fluidampr. __________________ Previous PB:11.079 @ 122.99mph.. New setup time: TBD The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371

09-16-2018, 07:11 PM	#7
xc_SS/RS Drives: 2010 Camaro SS/RS Join Date: Mar 2014 Location: somewhere in MD Posts: 4,883	Get an ATI super damper or fluidampr pulley and don't look back __________________ 2010 2SS/RS Z/28 intake, NW, FAST 102, speed engineering LT's, some exhaust, ATI -10% pulley, GM flex fuel injectors, DSX flex fuel sensor, MGW shifter, HP Tuners, some suspension work, stickers and a little weight loss. 12.63 @113.53

09-17-2018, 09:32 PM	#8
WHAMMO Drives: 13' 1LE Join Date: Apr 2012 Location: Canada Posts: 2,640	Yeah my car developped a belt problem with my UD; got a squeaky AC belt. I changed it and tried some different lenghts and now the belts are noisy, like if theyre not aligned properly. It doesnt squeak anymore. Mine is ASP . Im losing voltage when using AC, but I run a 18.5lbs clutch it might affect it more than before idk. Still I didnt have the clutch when it started, 1 year after the cam install. I have it since 2014, so its a good product imo. Next is going to be either ATI or Fluid damper. __________________ 13' 1LE Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me.

09-19-2018, 09:32 AM	#9
BT96SS Drives: 2012 Camaro RS/SS Join Date: Sep 2016 Location: Texas Posts: 38	I may just have to bite the bullet and have the factory one put back on. Sucks as I have to buy the belts over again. I looked at it again yesterday and it looked aligned correctly. When the ac kicked on I actually saw it stop turning and squeal. I would blame the ac but I was messing around with water under the hood and the belt was wet. So at this point I'm stumped.

09-19-2018, 11:50 AM	#10
charles71 Drives: 2011 Camaro SS Join Date: Aug 2015 Location: Southern Maryland Posts: 110 View My Garage	I had the same issue when I had a SLP 25% under drive pulley installed. At parking lot speeds the steering wheel was all but impossible to turn and the car would stall repeatedly. I don't know how the shop did it but the belt was routed incorrectly. Once I noticed and corrected it never had a problem since. __________________ Livernois Stage II Heads & Cam, LS7 Lifters, Ported Intake & Throttle Body, Rotofab CAI, BBK High Flow Fuel Rail @ Guage, Eaton Tru Trac Posi with 3.91 gears, 1000 HP Axels, Kooks Long tubes & full Corsa Exhaust, GM Hurst Short Throw Shifter, Mcleod RXT Twin Disc, Vitesse Throttle Controller, 1.5" Lowering Springs, Strut Tower Brace, SLP 25% Underdrive Pulley, Apex reservoir relocation kit and air scoop.