Quick Pulley Setup questions - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

vader87 · 02-22-2018, 12:07 PM

Ok getting ready to go to the 9.1 LPE lower on my ATI dampener. I have the 2.55 upper.

Is anyone running the relocation bracket with the LPE 100mm idler pulley?
Any issues before I replace the factory idler setup?
Belt Size recommendation?

I will be installing larger injectors at the same time (please see sig for current setup)

Thanks!

Can'tHave2MuchHP · 02-22-2018, 12:35 PM

The Idler Relocation bracket is your best option; better than using the 50mm idlers IMO. It will be fine with stock idlers + relocation bracket.

I'd recommend a 67.5" Gates belt. K080675HD.

This page is very helpful: https://www.havocspeed.com/documenta...er-belt-guide/

Good luck!

hammdo · 02-22-2018, 12:59 PM

If you replace HD with RPM on the gates belt number, you'll get the Racing version that hold up well. That is what I moved to even with my grip tech 2.45/9.17 combo... Since I do road course...

-Don

vader87 · 02-22-2018, 03:17 PM

Thanks for the help! I do not wanna go to the 50mm pulleys, I would like to add a 100mm upper idler pulley to get more belt wrap on the upper SC pulley. This one to be exact:
https://www.montmotorsports.com/lpe-...ulley-lsa-ls9/

ZMEnow · 02-22-2018, 04:13 PM

Quote:

Originally Posted by vader87

Ok getting ready to go to the 9.1 LPE lower on my ATI dampener. I have the 2.55 upper.

Is anyone running the relocation bracket with the LPE 100mm idler pulley?
Any issues before I replace the factory idler setup?
Belt Size recommendation?

I will be installing larger injectors at the same time (please see sig for current setup)

Thanks!

Yes I use the LPE Idler, just be careful of the belt sizes there were a couple of data sheets out there with different belt sizes, I believe this is the newest. Also you will find many have problems even with the recommended belts on this chart. I had to go .5 more to get it on and the tensioner was almost at max.

That failed last year as the bracket completely snapped at a light so I got lucky. Had that happened at the track I would have been buying sheet metal..

02-22-2018, 12:07 PM	#1
vader87 Drives: 2013 Camaro ZL1 Join Date: May 2016 Location: El Paso Posts: 78 View My Garage	Quick Pulley Setup questions Ok getting ready to go to the 9.1 LPE lower on my ATI dampener. I have the 2.55 upper. Is anyone running the relocation bracket with the LPE 100mm idler pulley? Any issues before I replace the factory idler setup? Belt Size recommendation? I will be installing larger injectors at the same time (please see sig for current setup) Thanks! __________________ 2013 ZL1/A6: CNC'd SC w/lid spacer, 2.35 upper, 9.45 lower, BTR Stage 3 Cam, Wilkes Performance CNC'd Heads, 1050cc injectors, DSX Aux pump, 1 7/8 headers, 102 TB, JLT CAI, Killer Chiller, LSX Concepts race drive, Flex Fuel Tune. 12.8 lbs. boost 753/724

02-22-2018, 12:59 PM	#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: 8,694 View My Garage	If you replace HD with RPM on the gates belt number, you'll get the Racing version that hold up well. That is what I moved to even with my grip tech 2.45/9.17 combo... Since I do road course... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

02-22-2018, 03:17 PM	#4
vader87 Drives: 2013 Camaro ZL1 Join Date: May 2016 Location: El Paso Posts: 78 View My Garage	Thanks for the help! I do not wanna go to the 50mm pulleys, I would like to add a 100mm upper idler pulley to get more belt wrap on the upper SC pulley. This one to be exact: https://www.montmotorsports.com/lpe-...ulley-lsa-ls9/ __________________ 2013 ZL1/A6: CNC'd SC w/lid spacer, 2.35 upper, 9.45 lower, BTR Stage 3 Cam, Wilkes Performance CNC'd Heads, 1050cc injectors, DSX Aux pump, 1 7/8 headers, 102 TB, JLT CAI, Killer Chiller, LSX Concepts race drive, Flex Fuel Tune. 12.8 lbs. boost 753/724

02-22-2018, 12:35 PM	#2
Can'tHave2MuchHP Drives: Fast Join Date: Mar 2015 Location: Michigan Posts: 3,696	The Idler Relocation bracket is your best option; better than using the 50mm idlers IMO. It will be fine with stock idlers + relocation bracket. I'd recommend a 67.5" Gates belt. K080675HD. This page is very helpful: https://www.havocspeed.com/documenta...er-belt-guide/ Good luck!