05-23-2019, 02:30 PM | #1 |
Drives: 2016 2SS Join Date: Mar 2019
Location: ID
Posts: 58
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AFM question
Is there any hp/tq to be had by removing the AFM?
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05-24-2019, 06:17 AM | #2 |
Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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Just got my Range unit 2 days ago.
My driving style, so far I haven't noted a huge decrease in mileage, guessing it's maybe .3-.4mpg less. The response at low throttle cruise seems like it's definitely snappier and responsive. Power wise, so far with right foot, no; I don't feel it's affecting HP/TQ. But it doesn't sound like a farting tractor anymore, the exhaust flaps stay open all the time now--but it'll pop some when RPM's are manually controlled for the engine to run around 2k RPM. AFM in my opinion, is a joke; a solution looking for a problem. Just makes the engine valve train more complex. (get gov't out of powertrain engineering) |
05-24-2019, 09:06 AM | #3 |
Drives: 67 goat, 69 goat ram air III Join Date: Mar 2009
Location: South texas
Posts: 1,443
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No, but it should be easier on those collapsible lifters not having to go back and forth...pumped, collapsed etc...also be sure and use the oil called for by GM, ie...0-20 or what ever...
You can drive in manual shift mode and it will keep the AFM off...sticks do not have AFM activated... Last edited by Stex; 05-24-2019 at 10:19 AM. |
05-24-2019, 03:31 PM | #4 |
Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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manual shift mode and it will keep the AFM off...
******* Nope. It helps some, but after something like 15-20 seconds or similar, that little green V4 lights up again. Been there, done that. The Range keeps it off. |
05-24-2019, 03:47 PM | #5 |
Drives: 2016 Camaro 1LT Join Date: Jan 2016
Location: California
Posts: 3,493
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afm never kicks in when you care about hp and torque regardless of what mode you're in.
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05-24-2019, 04:54 PM | #6 |
Drives: '17 Camaro 2SS & '99 Camaro Z28 Join Date: Feb 2014
Location: Austin, TX
Posts: 1,873
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It does... however; Entering into manual ALONE will not keep AFM off. You have to downshift (not upshift). After you downshift just once, AFM will stay off for the remaining duration you're in manual mode.
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05-25-2019, 08:01 PM | #7 |
Drives: 2016 2SS Join Date: Mar 2019
Location: ID
Posts: 58
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Thanks for all the answers. I think I need a Range or Diablo.
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05-27-2019, 07:26 AM | #8 |
Drives: 67 goat, 69 goat ram air III Join Date: Mar 2009
Location: South texas
Posts: 1,443
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05-27-2019, 02:38 PM | #9 |
Drives: 2018 Camaro 2SS, redline edition Join Date: Jun 2013
Location: Hackettstown, NJ
Posts: 209
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2018, 2ss Camaro. When I have AFM disabled, the car seems to me to be more responsive and faster. I have fuse 51 pulled and I noticed more decel pops. Gas mileage is a little lower as well, but who cares
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05-28-2019, 03:34 PM | #10 |
Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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Something else about the use of the Range.
I pulled the plugs on the forward exhaust valves, and get some better sound (noise?) from the car. But it throws up a CEL, routed through the fuel pump control module. I found if I have the range ready to plug in just after pressing the start and the engine fires up, the CEL doesn't come on. Too bad they don't put a switch on the thing. |
05-28-2019, 11:35 PM | #11 | |
Drives: '17 2SS convertible'20 Yukon Denali Join Date: Nov 2011
Location: Cedar Park, Texas
Posts: 2,955
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Quote:
You can find an ODB II extension cable on Amazon that has an inline switch. However, the latest version of the Range software apparently doesn't drain the battery. They will update it for the cost of the shipping.
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Richard
2017 2SS SIM convertible, A8, NPP, MRC, 56R wheels, GM CAI, Diode Dynamics Side Markers Delivered: 08/15/2016 #TeamBeckyD |
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05-30-2019, 05:51 AM | #12 |
Drives: Camaro 50th anniversary edition Join Date: May 2017
Location: Europe
Posts: 2,203
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What happen to the AFM valves if I use the Range? Is the valve open? Half open or closed?
__________________
Soleil
_____________________________________________ A car is fast enough, if you fear to unlock it in the morning." (Walter Roehrl) Last edited by Soleil; 05-30-2019 at 07:50 AM. Reason: Spelling |
05-30-2019, 06:04 AM | #13 |
Drives: 2018 Camaro 2SS, redline edition Join Date: Jun 2013
Location: Hackettstown, NJ
Posts: 209
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With the Range plugged in, the AFM valves stay open all the time.
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05-30-2019, 07:52 AM | #14 |
Drives: Camaro 50th anniversary edition Join Date: May 2017
Location: Europe
Posts: 2,203
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thank you. That mean if I use the range and pull fuse #51 the sound should be slightly better
__________________
Soleil
_____________________________________________ A car is fast enough, if you fear to unlock it in the morning." (Walter Roehrl) |
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