01-24-2020, 11:16 AM | #1 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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Belt size chart.
I've done some looking around for information on belt sizing and I cant seem to find a bunch of info on it. Weapon X says you can call them and and they will get the right belt for your combo, but what about the people that need something sooner then ordering from an online source. Am I overlooking something? Can we get a resource together?
What size is the stock belt? Upper pulley only combos? I've heard some can use the factory belt? Lower only combos? Uppers with Lower combos? What do you guys think? I'm doing a 2.175 upper and I'm not sure what belt I need. EDIT: FROM THE INFORMATION I CAN FIND STOCK BELT: K080828 WITH HD AND RPM VARIANT AVAILABLE UPPER PULLEY ONLY (DOWN TO 2.3): CAN USE FACTORY BELT SIZE UPPER PULLEY ONLY (2.25 TO 2.175): K080817 WITH HD AND RPM VARIANT AVAILABLE (STOCK BELT MAY WORK WITH GRIPTEC PULLEY) LOWER PULLEY WITH STOCK UPPER ***(IF USING AN ATI BALANCER IT SEEMS HIT OR MISS IF THE (NEW) FACTORY BOLT FITS, RECOMMENDED TO USE PN# 11570163)*** 9.06" K080845 LOWER WITH SMALLER UPPER 9.45 WITH 2.175 UPPER K080845 EDELBROCK eForce 2650 and stock lower 3.25" with a 2175 belt, K080855HD 3.00" with a 2155 belt, K080850HD 2.75" with a 2141 belt, K080842HD LETS KEEP THIS INFO GOING, IF YOU HAVE A LOWER ONLY COMBO/UPPER LOWER COMBO AND KNOW WHAT BELT YOUR CAR USES LETS POST IT UP! Last edited by zincgt; 05-29-2020 at 12:46 PM. |
01-25-2020, 03:25 PM | #2 |
Drives: 2019 Camaro ZL1 Join Date: Jul 2019
Location: Pensacola
Posts: 98
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I can’t answer all of your belt questions but I can tell you that I’m running a 2.175upper/stock lower. I use the oem belt. The tensioner still holds the belt nice and tight. 0 slip with my griptec and car is making 15lbs.
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01-25-2020, 03:38 PM | #3 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
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Info for eForce 2650 and stock lower
3.25" with a 2175 belt 3.00" with a 2155 belt 2.75" with a 2141 belt
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2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
01-25-2020, 03:40 PM | #4 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
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You should keep the original post updated with all this, awesome to keep track of stuff
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2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
01-25-2020, 04:42 PM | #5 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,787
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This would be a good stickey. I'll post info for various Maggie 2300, stock lower combos when I get home this evening and check my belt stash.
Greg, when I called Magnuson a year or so back to ask what belt to use with my 85mm pulley, they said they didn't know as their kit does not come with that size pulley. They should be ashamed of themselves lol!
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
01-27-2020, 06:10 PM | #6 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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I will do my best to update as everyone posts
This is good to hear, I will try the factory belt on my setup once I get the upper installed. |
01-30-2020, 10:43 AM | #7 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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BUMP
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04-30-2020, 06:44 PM | #8 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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Just a quick update, I am currently running a stock belt with a 2.175 upper. Logs show no extreme slip but I do have downward trend a couple KPA. Going to put a smaller belt on just for giggles and see.
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05-04-2020, 05:42 PM | #9 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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Switched to K080817 from the stock belt on a 2.175 Griptec upper pulley, no difference in boost, guess the stock belt was working great!
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05-29-2020, 12:14 PM | #10 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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UPDATED ADDED SOME LOWER COMBOS.
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05-29-2020, 12:31 PM | #11 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
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Added the part numbers as I know them
EDELBROCK eForce 2650 and stock lower 3.25" with a 2175 belt, K080855HD 3.00" with a 2155 belt, K080850HD 2.75" with a 2141 belt, K080842HD
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2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
05-29-2020, 12:47 PM | #12 |
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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02-10-2021, 12:59 PM | #13 |
Drives: 2018 camaro 2SS Join Date: Jan 2020
Location: Baton Rouge,LA
Posts: 52
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i just purchased the 2650, and was wondering what upper should i run.
ported heads pd3 gpi cam (ss3 boost cam) gpi drop ins lt4 injectors lt4 hpfp dsx aux pump |
02-12-2021, 08:57 AM | #14 | |
Dyno Show Queen LOL
Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014
Location: Houston
Posts: 4,345
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Quote:
I would say it greatly depends on the intake and TB size to what pulley combo.. I picked up 40 plus hp with a 103 and 5 inch intake, then 100 plus with porting and a 112mm tb... If you have the fuel you can run 9 or 10 lower and 2.75 upper if your just on lt4 fuel parts with a cam lobe you should look at this article.. https://www.lsxmag.com/tech-stories/...rger-on-a-zl1/ it should say exactly what combo they had on the car and finished up with.. I talked to there tuner Howard who is pretty damn good but a major AZZ and a 9.1 was used for a lower(15%) and 3.25 is what they ended with. I've also seen 8.8 with 3.00 inch lower do about the same. I would think on 93 octane, a cam with a 38% lobe, Lt4 fuel parts and some type of aux pump either of the pulley combos will work. Adding some E might even be okay.. To do full E85 and be 900 plus, Brandon at Lingenfelter told me the following. Fore or return style pump that can do 80 psi with no pressure drop under load with a 1/2 fuel supply line(-8AN) running to there Hi-Flow Check valve... Cam fuel lobe of 42% LPE Big Bore Pump LPE Plus 30/45% injectors A lot people skimp on some of these steps like a dsx pump instead of a return style setup, or no larger fuel line, or a smaller fuel lobe.. They end up getting mad and selling there LPE parts. Its a good system but it has to be done this way..
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Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber |
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