Pulley upgrade, injectors needed - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

KevinZ · 05-12-2015, 01:28 PM

Hello all,

I am wanting to put on the metco lsa interchangeable crank pulley kit.
http://www.phastekperformance.com/20...l1-icp-lsa.htm

I was looking to put on the 9.55" and 50 mm idler pulley. My question is would I need to upgrade the stock injectors? Would 82lb injectors be able to handle it?

I'm currently at 548 rwhp with full headers back and a cai.

ZL1Kid_AL · 05-12-2015, 01:41 PM

I didn't have to, I still have some duty cycle left to play with but I will need to get them as my next mod.. So if you have the money definitely get them and get the purchase out of the way... Talk to your tuner, he will give you the best advice usually

CAM....ZL1 · 05-12-2015, 01:59 PM

I had to have injectors for the 9.55, I was maxed out with the 9.17. Good luck, you would be safer in the long run to add the injectors.

Expunge · 05-12-2015, 03:24 PM

Yes, you are near the limit of your injectors. I would recommend going with the Injector Dynamics ID-850 injectors and a good tune.

ZO6 Bryan · 05-12-2015, 11:58 PM

Yes, with the 9.55 pulley I went to 130% duty cycle.

JamesZL1 · 05-13-2015, 06:08 AM

I did this exact thing...Put the Metco 9.55 lower on and I DID NOT get injectors..I stuck with the stock ones. Now that being said, the tuner had to pull almost all of my timing out because I was at 100% duty cycle and the stockers just didn't have enough. I installed the ID850's. Very expensive, but they are probably the easiest to tune. If I had to to do all over agaian, I might go with Deatschwerks or FAST injectors just for the price difference. I have seen several people with them and haven't heard anything bad about them.

05-12-2015, 01:28 PM	#1
KevinZ Drives: 2013 ZL1 Join Date: Apr 2015 Location: Maryland Posts: 1	Pulley upgrade, injectors needed Hello all, I am wanting to put on the metco lsa interchangeable crank pulley kit. http://www.phastekperformance.com/20...l1-icp-lsa.htm I was looking to put on the 9.55" and 50 mm idler pulley. My question is would I need to upgrade the stock injectors? Would 82lb injectors be able to handle it? I'm currently at 548 rwhp with full headers back and a cai.

05-12-2015, 01:41 PM	#2
ZL1Kid_AL Drives: 2014 ZL1- Summit White M6 Join Date: Aug 2014 Location: Thornton, Colorado Posts: 462	I didn't have to, I still have some duty cycle left to play with but I will need to get them as my next mod.. So if you have the money definitely get them and get the purchase out of the way... Talk to your tuner, he will give you the best advice usually __________________ 750whp @ 13psi Garage Built on Jack Stands.. 850++ 100 shot of sauce

05-12-2015, 11:58 PM	#5
ZO6 Bryan Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012 Location: Southeast Posts: 1,838 View My Garage	Yes, with the 9.55 pulley I went to 130% duty cycle. __________________ Bryan 2018 ZL1 M6

05-13-2015, 06:08 AM	#6
JamesZL1 Drives: 2013 ZL1 A6 Camaro, 2015 C7 A6 Z51 Join Date: Apr 2014 Location: Oklahoma Posts: 396	I did this exact thing...Put the Metco 9.55 lower on and I DID NOT get injectors..I stuck with the stock ones. Now that being said, the tuner had to pull almost all of my timing out because I was at 100% duty cycle and the stockers just didn't have enough. I installed the ID850's. Very expensive, but they are probably the easiest to tune. If I had to to do all over agaian, I might go with Deatschwerks or FAST injectors just for the price difference. I have seen several people with them and haven't heard anything bad about them. __________________ Roto-Fab CAI, Texas Speed Headers, Texas Speed X-Pipe, Texas Speed LS3-B Blower Cam, Metco 9.10" Crank Pulley, Metco 2.5 Upper Pulley, ID 850 Injectors, LPE Ported Throttle Body, Alky Control Methanol kit, E2 Catch Can, 610HP / 608 Torque.

05-12-2015, 01:59 PM	#3
CAM....ZL1 Drives: 2012 ZL1 Join Date: Feb 2012 Location: BENTON, IL. Posts: 1,068 View My Garage	I had to have injectors for the 9.55, I was maxed out with the 9.17. Good luck, you would be safer in the long run to add the injectors.

05-12-2015, 03:24 PM	#4
Expunge Drives: 2013 ZL1 M6, '99 Tahoe 2Dr Sport Join Date: Mar 2013 Location: South of Houston, TX Posts: 890 View My Garage	Yes, you are near the limit of your injectors. I would recommend going with the Injector Dynamics ID-850 injectors and a good tune.