12-07-2020, 04:39 PM | #1 |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
Posts: 1,150
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Mild 2 Wild worth it?
I am a bit confused, I thought that the Valves stayed open when in "sport or Track" mode and didn't close. So what would be the purpose of a Mild 2 Wild switch in our ZL1s?
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2020 ZL1 A10 Shadow Gray Metallic
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12-07-2020, 04:54 PM | #2 | |
Former GM Technician
Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009
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Quote:
With the mild to wild, fuse pull, or reprogramming the npp you can have them open at all times. You can hear the difference at lower cruise rpm's, and idle.
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12-07-2020, 05:11 PM | #3 |
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
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cig, I would try the fuse pull first before buying a mild to wild switch. I did the fuse pull in my ZL1 and didn’t seem to really make that much a difference in loudness so I put the fuse back in and set the exhaust mode to Track in the DIC.
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12-07-2020, 06:27 PM | #4 |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
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Pulling the fuse didn’t make a difference at lower RPM even in Trac and Sport mode with the valves fully open?
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
12-07-2020, 07:27 PM | #5 | |
Drives: 2017 1SS Hyper Blue Join Date: Apr 2017
Location: Wisconsin
Posts: 478
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Quote:
And you can build your own mild to wild switch if you are reasonably handy with a soldering iron. Forgot to mention: get yourself a Range AFM delete so you won’t have the AFM valves opening and closing either. Makes a nice difference as well. Last edited by wwiiavfan; 12-07-2020 at 07:38 PM. |
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12-07-2020, 08:07 PM | #6 | |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
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Quote:
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
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12-07-2020, 08:21 PM | #7 |
Drives: 2017 1SS Hyper Blue Join Date: Apr 2017
Location: Wisconsin
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Our cars have two sets of valves. One at the muffler in back, another farther up towards the front. The front ones are controlled by AFM. The back ones are the only ones affected by a fuse pull or MtW switch.
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12-07-2020, 09:51 PM | #8 | |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
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Quote:
Edit: now I’m totally confused according to some other threads here the ZL1 does NOT have AFM valves.....
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
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12-07-2020, 10:07 PM | #9 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
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Pulling the fuse makes no difference in sport or track at start, idle, or WOT. The valves are set open under these conditions.
The difference is with the NPP fuse pulled the valves will not close under any condition. With the fuse installed in Sport/Track the valves close in gears 6-10 on the A10. Sport closes a gear earlier Then track part throttle. The AFM valves only close when entering 4cylinder mode on A10's. M6 cars do not have AFM valves and 4cyl AFM mode is disabled. Edit* AFM is only active on the Z06. ZL1 is disabled and has no AFM valves in the exhaust.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA Last edited by KingLT1; 12-07-2020 at 10:17 PM. |
12-07-2020, 10:09 PM | #10 | |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
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Quote:
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
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12-07-2020, 10:11 PM | #11 | |
Coupe Newbie
Drives: 2017 ZL1, 2021 Corvette Convertible Join Date: Jul 2011
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Quote:
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12-07-2020, 10:15 PM | #12 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
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Correction. ZL1 doesn't have AFM for the A10 or M6...nor does it have the AFM valves. I was thinking of the Z06. It does still have the AFM hardware in the engine as mentioned above.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
12-07-2020, 10:18 PM | #13 | |
Drives: 2016 2SS Convertible Join Date: May 2012
Location: St. Louis, MO
Posts: 1,711
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Quote:
Track Mode opens the NPP exhaust valves initially and under acceleration but I believe even in Track Mode the NPP valves eventually close with steady driving (i.e. highway driving). The M2W controller gives you the ability to override that. |
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12-07-2020, 10:23 PM | #14 | |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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Quote:
The only NON AFM hardware equipped LT engine is the LT5.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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