SLP Under-drive pulley didn't last 3 weeks! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

hammdo · 07-11-2014, 10:02 PM

********* UPDATE **********

As of 9/7/2014 -- all resolved. GPI sent the refund from TSP and now, were done. Not sure what the issue was that caused the failure. Not heard back from TSP yet. Would like to know in the future...

As of 8/10/2014 -- not heard back from TSP (or GPI).

I know GPI can't do anything until they hear back from TSP -- just wondering what the issue is. I sent the pulley back the very same day I received the RMA -- would like to know the next steps.

I also PM'd TSP the same date and still waiting for any info/status.

Oh, and no 'credit/refund' yet -- wondering about that too...

-Don

Well today, 7/21/2014 got the pulley from JDP -- ATI -- looks nice and once you put the hub on, you can remove the front pulley for rebuild (back pulley is for AC and is the standard belt/pulley).

SO, wanna see a defective PULLEY?

This thing just blew up -- I mean, junked.

I have about 1500 miles on it in 3 weeks -- wow

BTW, still have NOT heard back from Texas Speed and they've known about my situation since Monday of last week -- go figure...

JDP (Tyler) FTW!

Here we go:

Here, the GUTS are fried:

The pulley is 'raised' here...

Now, this car has never been raced or to the track with these updates -- No races what-so-ever

The SAGA on what I had to do to get this thing off -- is another story -- I'll detail the steps I had to follow to get this off - Automatics are different than sticks!

Tranny lines get in the way ;o)

-Don

****** End Update ***********

Got it from GPI (who got it from Texas Speed I think).

I've had it on 3 weeks and drove about 1500 miles when today, @ 4 PM -- rush hour here in DFW -- both belts slipped off!

So, 100 degree day, no ac and all the bells and whistles going off saying engine overhead and idle the engine -- this in about 10 to 20 seconds!

So pulled off, contact onstar for the tow home. Call Ryan @ GPI and he helped me confirm it was a faulty under-drive pulley.

GPI is sending out a new one to me so I can get this going but I wanted to see if anyone else had this issue...

Also, I know there are a set of tools to hold the flywheel while you put it on.

I have impact tools, air compressor so taking it off won't be an issue.

Ryan did say there is an LS3 pulley install tool. If you know anyone that has one I can use (locally since I'm in DFW) or good place to buy the tools, I would appreciate it.

Thanks!

-Don

TheHorse13 · 07-12-2014, 08:21 AM

Is there a specific purpose for this mod? If not, I would reconsider keeping it on your motor. Stock pulleys are far superior and much more reliable. Get your HP increases elsewhere without impacting things like your alternator and power steering.

hammdo · 07-12-2014, 09:21 AM

Yes, 5 to 6 hp increase @ the wheels -- less drag on the engine. This product has been around since 2009 and used quite often. Many use it with SC's.

Thanks!

rich3fan · 07-12-2014, 09:40 AM

Just now reading this... Sorry to hear about your troubles. I'm considering an ATI UD, and I watched a video on installation. Do you know exactly what went wrong with the pulley to cause the belts to slip off?

hammdo · 07-12-2014, 10:41 AM

yep, it uses what appears to be vulcanized rubber to hold the 'belt' pulley on. It's separated and wobbles now -- thus causing both belts to slip. I can grab that part of the pulley and its wobbles by hand. I may have been that '1' where you get a bad one, but Ryan has seen this on another one. SLP has had these for a while and I'm not seeing too many complain.

Are you looking @ the ATI 10%? I do like that is tune-able and rebuild-able too...

Does kinda suck she's down over a $250 'new' part. GPI is getting me a replacment, now to find those tools....

hammdo · 07-12-2014, 10:59 AM

I'm going to get the ATI Damper Puller and Installers 918999 with the additional ATI Damper Tool Installation Studs 918999SC for the LS series engines.

I'm seriously considering the ATI 10% now. I loose confidence in a product when I hear about > 1 incident of this type of failure. Not a small thing since this caused the engine to get really hot before I could pull over (everything was warning me -- and the oil life went from 80% to 0% after the heat-up) so oil change is necessary too. The oil/trans temps never got over normal but the engine must have since the water pump did not work with the belt off...

hammdo · 07-12-2014, 11:13 AM

BTW, where did you see the video?

62nalide · 07-12-2014, 11:17 AM

Damn that sucks, I've been running the SLP pulley for a year now. So far so good

hammdo · 07-12-2014, 11:31 AM

That is good to know. I'm thinking about an electric water pump though -- would still run with the belt off - kinda like that idea...

They do make one and it adds 'bolt on' hp too...

Gonna check that out...

Here's a link:

http://www.jegs.com/i/Meziere/680/WP...2/-1?viewAll=1

and it fits L99 too...

http://www.tellezmotorsports.com/MEZWP329N.php

Pro Stock John · 07-12-2014, 12:22 PM

I have a Powerbond pulley, bought used, and an ATI bolt. Got 10K on mine. Sorry to hear about this hiccup.

rich3fan · 07-12-2014, 01:09 PM

This video is about assembly of the ATI unit (not so great, but might have some useful info):

And this one explains a tool that the author made as a way to push the ASP balancer on...

I'm sure there better ones out there besides these. I'm just going to have LG install mine. I'll be interested to hear/read your opinions whichever route you take regardless Don.

GONIF · 07-12-2014, 01:33 PM

When I cam mine it's getting the Fluiddamper .

axis · 07-12-2014, 01:40 PM

Sounds like you got a bad one. Call TSP to have them replace it. There are LOTS of cars running that UDP without an issue.

hammdo · 07-12-2014, 02:06 PM

Thanks -- yes, GPI is on that -- Ryan and I spoke (while I was on the side of the road) when we diagnosed the problem -- TS is closed today so it won't be taken care of 'till Monday. I agree that I must have received a bad one -- but still sucks. The electric water pump though would have prevented the 'over-heated' situation -- still thinking about that one...

as they say -- 'pay to play'...

Part of the deal -- still -- the car 'looks' beautiful sitting. The tow operator told me he pulled off to the side just to take pictures of it on the flatbed...

07-11-2014, 10:02 PM	#1
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	SLP Under-drive pulley didn't last 3 weeks! ******* UPDATE ****** As of 9/7/2014 -- all resolved. GPI sent the refund from TSP and now, were done. Not sure what the issue was that caused the failure. Not heard back from TSP yet. Would like to know in the future... As of 8/10/2014 -- not heard back from TSP (or GPI). I know GPI can't do anything until they hear back from TSP -- just wondering what the issue is. I sent the pulley back the very same day I received the RMA -- would like to know the next steps. I also PM'd TSP the same date and still waiting for any info/status. Oh, and no 'credit/refund' yet -- wondering about that too... -Don Well today, 7/21/2014 got the pulley from JDP -- ATI -- looks nice and once you put the hub on, you can remove the front pulley for rebuild (back pulley is for AC and is the standard belt/pulley). SO, wanna see a defective PULLEY? This thing just blew up -- I mean, junked. I have about 1500 miles on it in 3 weeks -- wow BTW, still have NOT heard back from Texas Speed and they've known about my situation since Monday of last week -- go figure... JDP (Tyler) FTW! Here we go: Here, the GUTS are fried: The pulley is 'raised' here... Now, this car has never been raced or to the track with these updates -- No races what-so-ever The SAGA on what I had to do to get this thing off -- is another story -- I'll detail the steps I had to follow to get this off - Automatics are different than sticks! Tranny lines get in the way ;o) -Don ** End Update ********* Got it from GPI (who got it from Texas Speed I think). I've had it on 3 weeks and drove about 1500 miles when today, @ 4 PM -- rush hour here in DFW -- both belts slipped off! So, 100 degree day, no ac and all the bells and whistles going off saying engine overhead and idle the engine -- this in about 10 to 20 seconds! So pulled off, contact onstar for the tow home. Call Ryan @ GPI and he helped me confirm it was a faulty under-drive pulley. GPI is sending out a new one to me so I can get this going but I wanted to see if anyone else had this issue... Also, I know there are a set of tools to hold the flywheel while you put it on. I have impact tools, air compressor so taking it off won't be an issue. Ryan did say there is an LS3 pulley install tool. If you know anyone that has one I can use (locally since I'm in DFW) or good place to buy the tools, I would appreciate it. Thanks! -Don Last edited by hammdo; 07-01-2017 at 04:33 PM.

07-12-2014, 09:40 AM	#4
rich3fan What's this button do? Drives: 2019 Black 2SS Join Date: Apr 2013 Location: Wylie, Texas Posts: 1,364	Just now reading this... Sorry to hear about your troubles. I'm considering an ATI UD, and I watched a video on installation. Do you know exactly what went wrong with the pulley to cause the belts to slip off? __________________ 2019 Black & Red & Silver 2SS - Bone Stock

07-12-2014, 11:17 AM	#8
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Damn that sucks, I've been running the SLP pulley for a year now. So far so good __________________ https://frankensteined.net/ Martin@Frankensteined.net

07-12-2014, 12:22 PM	#10
Pro Stock John Writer Drives: 2010 SS / 1967 Camaro Join Date: May 2009 Location: Chicago, IL Posts: 7,221	I have a Powerbond pulley, bought used, and an ATI bolt. Got 10K on mine. Sorry to hear about this hiccup. __________________ PROJECT HEAVY CHEVY Camaro Now: Mods for the Masses Part I \| Part II 13.15@106 1.95 \| 100% Stock 12.37@112 1.85 \| + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 \| + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 \| + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 \| + GPI VVT Cam + BW Ported Heads + CD 3800

07-12-2014, 01:09 PM	#11
rich3fan What's this button do? Drives: 2019 Black 2SS Join Date: Apr 2013 Location: Wylie, Texas Posts: 1,364	This video is about assembly of the ATI unit (not so great, but might have some useful info): And this one explains a tool that the author made as a way to push the ASP balancer on... I'm sure there better ones out there besides these. I'm just going to have LG install mine. I'll be interested to hear/read your opinions whichever route you take regardless Don. __________________ 2019 Black & Red & Silver 2SS - Bone Stock

07-12-2014, 08:21 AM	#2
TheHorse13 Drives: 2011 Black SS M6 Join Date: Oct 2010 Location: Harpers Ferry, WV Posts: 1,116	Is there a specific purpose for this mod? If not, I would reconsider keeping it on your motor. Stock pulleys are far superior and much more reliable. Get your HP increases elsewhere without impacting things like your alternator and power steering.

07-12-2014, 09:21 AM	#3
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	Yes, 5 to 6 hp increase @ the wheels -- less drag on the engine. This product has been around since 2009 and used quite often. Many use it with SC's. Thanks!

07-12-2014, 10:41 AM	#5
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	yep, it uses what appears to be vulcanized rubber to hold the 'belt' pulley on. It's separated and wobbles now -- thus causing both belts to slip. I can grab that part of the pulley and its wobbles by hand. I may have been that '1' where you get a bad one, but Ryan has seen this on another one. SLP has had these for a while and I'm not seeing too many complain. Are you looking @ the ATI 10%? I do like that is tune-able and rebuild-able too... Does kinda suck she's down over a $250 'new' part. GPI is getting me a replacment, now to find those tools....

07-12-2014, 10:59 AM	#6
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	I'm going to get the ATI Damper Puller and Installers 918999 with the additional ATI Damper Tool Installation Studs 918999SC for the LS series engines. I'm seriously considering the ATI 10% now. I loose confidence in a product when I hear about > 1 incident of this type of failure. Not a small thing since this caused the engine to get really hot before I could pull over (everything was warning me -- and the oil life went from 80% to 0% after the heat-up) so oil change is necessary too. The oil/trans temps never got over normal but the engine must have since the water pump did not work with the belt off...

07-12-2014, 11:13 AM	#7
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	BTW, where did you see the video?

07-12-2014, 11:31 AM	#9
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	That is good to know. I'm thinking about an electric water pump though -- would still run with the belt off - kinda like that idea... They do make one and it adds 'bolt on' hp too... Gonna check that out... Here's a link: http://www.jegs.com/i/Meziere/680/WP...2/-1?viewAll=1 and it fits L99 too... http://www.tellezmotorsports.com/MEZWP329N.php

07-12-2014, 01:33 PM	#12
GONIF Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE Join Date: Feb 2014 Location: The Left lane PHOENIX AZ Posts: 2,626	When I cam mine it's getting the Fluiddamper . __________________ OLD GUY FLYING FAST AND LOW

07-12-2014, 01:40 PM	#13
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	Sounds like you got a bad one. Call TSP to have them replace it. There are LOTS of cars running that UDP without an issue. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

07-12-2014, 02:06 PM	#14
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	Thanks -- yes, GPI is on that -- Ryan and I spoke (while I was on the side of the road) when we diagnosed the problem -- TS is closed today so it won't be taken care of 'till Monday. I agree that I must have received a bad one -- but still sucks. The electric water pump though would have prevented the 'over-heated' situation -- still thinking about that one... as they say -- 'pay to play'... Part of the deal -- still -- the car 'looks' beautiful sitting. The tow operator told me he pulled off to the side just to take pictures of it on the flatbed...