04-15-2017, 02:49 PM | #1 |
Drives: '13 BRM ZL1 Join Date: Apr 2016
Location: Las Vegas, NV
Posts: 36
|
Best pulley set up for cam'd Z
So, I'll be camming the Z for sure by the end of summer. What pulley setup are you guys seeing the best with a cam? Upper only 2.3/2.5 or maybe the 2.5 - 9.1 combo...just seeing what you guys are having the best results with.
Thanks! |
04-21-2017, 12:33 AM | #2 |
"BEASTM*DE"
|
I'm not cammed, but I've read many post with the 2.5/8.6 or 9.1 running safely...Your best info will come from whomever is doing the install...Good luck...
__________________
Vengeance Racing Stage 1 Kit 575rwhp, 569 rwtq...
Rims powder coated gloss black...BFG'S Comp 2 A/S... Dual 10" Kicker Comp S Subs 1200w... |
04-21-2017, 10:30 AM | #3 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
|
Yeah I'd recommend a 2.5 + 8.6 if you're going to run 93. If you're going to do E85, then you can do a 9.1" instead of 8.6 which would give you another 10-20 ponies.
What is the rest of your build? Injectors? Heat exchanger? Meth? E85? Intake? Exhaust? 102mm? Porting? |
04-21-2017, 11:47 AM | #4 |
Drives: '15 Silverado LTZ & '13 ZL1 ragtop Join Date: Nov 2016
Location: Edmond, Oklahoma
Posts: 313
|
I have a 9.17 lower and plan on staying with just pump gas (E10/91 and 100% 93). The upper pulley is stock. Currently I have 850s which flow 104 lbs @ 58 psi. I will have a BTR Stage 3 cam installed soon. I was thinking about 2.75/2.85 to keep boost at or under 13 psi. Good decision?
|
04-21-2017, 12:01 PM | #5 |
Drives: 2013 ZL1 Join Date: Jan 2017
Location: Fort Myers, FL
Posts: 101
|
I am running the 2.55 and 9.17 with great results. I am also planning to add the BTR stage 3 cam sometime this summer, and the flex fuel kit. With CAI, LT, 1050X injectors and the pulleys, I made 615/625 to the wheels on a very low reading dyno.
|
04-29-2017, 09:56 PM | #6 |
Drives: 2013 ZL1 Camaro 2000 SLP Camaro Join Date: Oct 2012
Location: Ruther Glen, VA
Posts: 357
|
I went with a 2.5/10. combo with good results.
__________________
2013 ZL1 748rwhp & 733 rwtq ( 93 tune )
|
05-01-2017, 11:20 AM | #7 |
Drives: 2013 ZL1 M6 Join Date: Sep 2016
Location: CA Bay Area
Posts: 248
|
I am running the 2.55 with and 8.6.
__________________
Fast 850cc Injectors, ATI Balancer, 8.66 Lower Pulley, 2.55 Upper Pulley, Lingenfelter CAI, Kooks LT with cat delete pipes, Noweeds Exhaust Cutouts (extremely loud under full throttle), BTR Stage 3 Cam, BTR Platinum 660 Valve Spring Kit, TR7ix Iridium Spark Plugs, Lingenfelter Solid Isolator, 160 Degree Thermostat, Larger SC Coolant Reservoir with Hose Relocation Kit, BMR 1.25" Lowering Springs, MGW Short Throw Shifter, Racing Brake 2 piece rotors front and rear, Starkweather Performance Custom Dyno Tune on 91 Octane.
691.38 RWHP 630.35 RWTQ |
05-01-2017, 07:54 PM | #8 |
Drives: 2013 ZL1 M6 Join Date: Oct 2014
Location: Ontario
Posts: 217
|
I have the 2.5 9.1 on mine with btr 3, started with the 8.6 but changed out for a 9.1. its the best combo imo
|
05-02-2017, 01:02 PM | #9 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
|
2.5 + 9.1 is fine, though I'd prefer a 8.6 if you're running on 91 or 93. If you're on E85 (even a 50/50 mix) then go for the 9.1. I think you'll have to pull just a little too much timing on 93/91 to make the 9.1 worth it.
|
05-02-2017, 09:45 PM | #10 |
Drives: '15 ZL1 Join Date: Apr 2017
Location: Cecil Co. Maryland
Posts: 36
|
why not stock upper/10.5 lower?
|
05-03-2017, 05:32 PM | #11 |
Banned
Drives: Camaro Join Date: Mar 2013
Location: USA
Posts: 2,701
|
2.55/9.5.
|
05-03-2017, 05:39 PM | #12 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
|
|
05-03-2017, 05:51 PM | #13 |
Banned
Drives: Camaro Join Date: Mar 2013
Location: USA
Posts: 2,701
|
|
05-03-2017, 06:08 PM | #14 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
|
|
|
|
Thread Tools | |
|
|