05-02-2024, 11:24 AM | #1 |
Blower bypass mod
Has anyone done this to their ZL1? I was watching an unrelated youtube video and it was mentioned on there. Says it adds 1-1.5 more pounds of boost. I saw a couple of other videos and 1 said it had to be tuned, and the other said stock tune was fine. One video I watched it supposedly added 15 HP and like 20 lbft of torque... for a "free 5 minute mod"
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2010 2SS SOLD 10-28-23
Borla ATAK Cat Back System Airaid Full Cold Air Intake 15% tint Matte Black Rally Stripe 2016 Camaro SS Black Chrome PVD Wheels 2013 ZL1 BOUGHT 10-29-23 With 1950 miles K&N Full CAI 15% tint Borla ATAK Cat Back System Pedal Commander |
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05-02-2024, 01:26 PM | #2 |
Drives: 2013 zl1 vert Join Date: Dec 2018
Location: Rochester, New york
Posts: 1,048
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I've done it along with a lot of others. All it does is close the bypass valve tighter so not to lose boost. I don't believe you'll need a tune.
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22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.
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05-02-2024, 04:36 PM | #3 |
Drives: 2013 ZL1 Join Date: Sep 2021
Location: Virginia
Posts: 369
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The factory adjust the valve so it is always slightly open to keep it from sticking. Depending how much gap they left you may see a slight difference or no difference. No tune required.
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