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#1 |
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2018 Zl1 Boost bypass mod
Anyone have results and easy instructions to adjust the valve ?
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#2 |
![]() Drives: 2017 Camaro ZL1 Join Date: Nov 2019
Location: al
Posts: 93
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I have never heard of seen of anyone doing this on these cars. Interesting to hear from anyone that has.
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2017 ZL1 M6
Youtuber - https://www.youtube.com/c/projectzl1 |
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#3 |
![]() Drives: 2019 ZL1 Join Date: Oct 2019
Location: GA
Posts: 573
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It's pretty easy. Get the right bit to fit the screw, put a light behind the screw/plate it contacts so you can see when it first touches the plate.
Rotate counter clockwise until you can see a light gap between the screw and plate. Then, clockwise to tighten back until it barely touches the plate and no light is shining between. Then give it a 1/4-1/3 turn additional clockwise to lightly preload and you're set. Easy as pie. |
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#4 |
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Did you see any results like some people say 1lb to 1.5lb boost
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#5 |
![]() ![]() Drives: 2015commemorative vert 2SS Join Date: Oct 2013
Location: northern Indiana
Posts: 949
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There was a thread on here way back when I had just bought my 17. So its out there, and I did it on my 17.
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2018 ZL1 Bright Yellow, A10, PDR, sunroof, carbon hood, and dash- sold
2020 2SS A10 sunroof..shock and steel special-traded 2015 commemorative vert 2ss |
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#6 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009
Location: Tampa
Posts: 5,111
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And, did you notice an improvement?
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Sold 2012 2LT RS 12.3@112 old setup
Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 ** Born 3/17/17**Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. **807hp/762tq on 93 gas** and **848hp/792tq on e47** Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive |
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#7 |
![]() ![]() Drives: Red hot ZL1 A10 2017 Join Date: Nov 2016
Location: MS Back to France (29)
Posts: 804
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Did that last year when it came in front of the scene....
No difference Same psi on the gauge Same boost But Mine was already with the good setting When I checked the screw. (TPW 04/03/17) Heard that some folks had to do ~3/4 turns or more to match the perfect position and they felt some difference.... ? It doesn’t cost anything ;-) Don’t forget to put some blue glue to fix the screw like the OEM set up. |
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