Idler Relocation Bracket Needed??? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

mnvaughn · 01-18-2015, 11:38 AM

Do 9.17" lower pulleys need the idler relocation bracket? I recently had the supercharger replaced and had a 8.86" pulley prior to replacement. Now with my new supercharger I'm going to add injectors and I might as well get the 9.17" pulley. The LSA pulley chart (as seen below) the chart has two rows for 18% pulleys, one with the bracket and the other without the bracket. Additionally, in the notes it states "for applications where the crank pulley is GREATER than 9.17, the LPE bracket is required..." So people who have replaced the lower pulley to 9.17" without changing the upper supercharger pulley did you buy the idler relocation bracket?

Wezbad1 · 01-18-2015, 12:06 PM

The bracket is not required if you use a lower 50mm idler gear.

http://www.jreperformanceparts.com/g...er-pulley.html

Stephen12ZL1 · 01-18-2015, 12:38 PM

^^^what he said. The 50mm idler is a POS. Get the relocation bracket and use the stock idlers which are much better in my opinion.

Baer383 · 01-18-2015, 12:44 PM

Quote:

Originally Posted by Stephen12ZL1

The 50mm idler is a POS. Get the relocation bracket and use the stock idlers which are much better in my opinion.

I have the LPE relocation bracket with stock pulleys it works very well.

mnvaughn · 01-18-2015, 12:49 PM

Quote:

Originally Posted by Stephen12ZL1

^^^what he said. The 50mm idler is a POS. Get the relocation bracket and use the stock idlers which are much better in my opinion.

I'm getting confused though if either is necessary. If I don't purchase the relocation bracket then I have to purchase the 50mm idler?

Wezbad1 · 01-18-2015, 01:17 PM

Its one or the other.

Stephen12ZL1 · 01-18-2015, 01:36 PM

just get a relocation bracket...you will understand when you remove the lower pulley why it is necessary

ZL1Naboz · 01-18-2015, 02:14 PM

Just need a 50mm idler to replace stock idler no bracket

mnvaughn · 01-18-2015, 02:23 PM

Quote:

Originally Posted by Stephen12ZL1

just get a relocation bracket...you will understand when you remove the lower pulley why it is necessary

I've probably asked you a million questions this week, but one more question. Would you recommend the Lingenfelter relocation bracket or the Metco brand?

Baer383 · 01-18-2015, 02:26 PM

Quote:

Originally Posted by mnvaughn

I've probably asked you a million questions this week, but one more question. Would you recommend the Lingenfelter relocation bracket or the Metco brand?

The LPE bracket is better b/c by using the stock size pulleys they won't spin as fast as the 50mm which has been know to break.

The stock pulleys have better bearings in them plus they are larger.

CAM....ZL1 · 01-18-2015, 03:15 PM

I have a 9.55 lower and no relocation bracket or 50 mm idler.

mnvaughn · 01-18-2015, 06:09 PM

Quote:

Originally Posted by CAM....ZL1

I have a 9.55 lower and no relocation bracket or 50 mm idler.

No clearance problems at all?

CAM....ZL1 · 01-18-2015, 07:01 PM

[QUOTE=mnvaughn;8177885]No clearance problems at all?[/QUOTElower

I did a 70mm on top and bottom idlers without any problems. Tensioner was so tight it took two people to put the belt on. Deffinately no belt slip.

Stephen12ZL1 · 01-18-2015, 08:31 PM

the 50mm lower idler is fine, however it has been reported to have some failures. The relocation bracket by LPE is the best fix and replace the stock idlers on it.. Metco is not as good as the LPE bracket as I have tried both. Don't try to overthink a simple issue as the solution is right here.

01-18-2015, 11:38 AM	#1
mnvaughn Drives: Camaro Join Date: Dec 2013 Location: United States Posts: 65	Idler Relocation Bracket Needed??? Do 9.17" lower pulleys need the idler relocation bracket? I recently had the supercharger replaced and had a 8.86" pulley prior to replacement. Now with my new supercharger I'm going to add injectors and I might as well get the 9.17" pulley. The LSA pulley chart (as seen below) the chart has two rows for 18% pulleys, one with the bracket and the other without the bracket. Additionally, in the notes it states "for applications where the crank pulley is GREATER than 9.17, the LPE bracket is required..." So people who have replaced the lower pulley to 9.17" without changing the upper supercharger pulley did you buy the idler relocation bracket? Attached Images Last edited by mnvaughn; 01-18-2015 at 12:50 PM. Reason: changed belt to bracket

01-18-2015, 12:38 PM	#3
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,815	^^^what he said. The 50mm idler is a POS. Get the relocation bracket and use the stock idlers which are much better in my opinion. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

01-18-2015, 01:36 PM	#7
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,815	just get a relocation bracket...you will understand when you remove the lower pulley why it is necessary __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

01-18-2015, 02:14 PM	#8
ZL1Naboz ZL1Naboz Drives: '13 ZL1, ‘53 Chevy Pickup, ‘22 GMC Join Date: Mar 2013 Location: Winston Salem, NC Posts: 337 View My Garage	Just need a 50mm idler to replace stock idler no bracket __________________ Rotofab CAI, Big Gulp & Washer Bottle Relo, MGW, Kook's w/Hiflo Cats, SCT4, Jannetty, 35% tint, Oracle Side Markers, MTX Sub, Escort 9500ix - Blendmount, 18% Lower, ATI Super Damper, ID850 Injectors, Moroso Catch Can, MSD BAP, AFCO Heat Exchanger Pre-Pulley Dyno 559.92 RWHP 519 RWTQ

01-18-2015, 08:31 PM	#14
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,815	the 50mm lower idler is fine, however it has been reported to have some failures. The relocation bracket by LPE is the best fix and replace the stock idlers on it.. Metco is not as good as the LPE bracket as I have tried both. Don't try to overthink a simple issue as the solution is right here. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

01-18-2015, 12:06 PM	#2
Wezbad1 Drives: 2013 ZL1, 2001 Viper GTS Join Date: Feb 2013 Location: Tracy, Ca Posts: 92	The bracket is not required if you use a lower 50mm idler gear. http://www.jreperformanceparts.com/g...er-pulley.html

01-18-2015, 01:17 PM	#6
Wezbad1 Drives: 2013 ZL1, 2001 Viper GTS Join Date: Feb 2013 Location: Tracy, Ca Posts: 92	Its one or the other.

01-18-2015, 03:15 PM	#11
CAM....ZL1 Drives: 2012 ZL1 Join Date: Feb 2012 Location: BENTON, IL. Posts: 1,068 View My Garage	I have a 9.55 lower and no relocation bracket or 50 mm idler.

01-18-2015, 07:01 PM	#13
CAM....ZL1 Drives: 2012 ZL1 Join Date: Feb 2012 Location: BENTON, IL. Posts: 1,068 View My Garage	[QUOTE=mnvaughn;8177885]No clearance problems at all?[/QUOTElower I did a 70mm on top and bottom idlers without any problems. Tensioner was so tight it took two people to put the belt on. Deffinately no belt slip.