2017 AFM, is it true?
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Drifting
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From: Germantown Maryland
2017 AFM, is it true?
I saw a comment in another thread that for 2017 the AFM valves in the exhaust have been eliminated in Z51 and GS like the Z06. Is this true? Maybe a production mod due to all the reported melting actuators at the track? And maybe a reason to move up to a GS. ;-)
Thread Starter
Drifting
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From: Germantown Maryland
Racer
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The Consigliere
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People are talking about two different things in this thread. One, operation of AFM with the engine - i.e. going from V8 to V4 and back. Two, whether the exhaust system has the upstream valves previously utilized on Stingray, but not Z06.
It appears M7 stingrays and GS don't have the AFM exhaust valves. Operation of AFM w/ the M7 for the engine remains the same - i.e. must be in eco mode for it to activate.
It appears M7 stingrays and GS don't have the AFM exhaust valves. Operation of AFM w/ the M7 for the engine remains the same - i.e. must be in eco mode for it to activate.
Last edited by OnPoint; Sep 6, 2016 at 08:46 PM.
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People are talking about two different things in this thread. One, operation of AFM with the engine - i.e. going from V8 to V4 and back. Two, whether the exhaust system has the upstream valves previously utilized on Stingray, but not Z06.
It appears M7 stingrays and GS don't have the AFM exhaust valves. Operation of AFM w/ the M7 for the engine remains the same - i.e. must be in eco mode for it to activate.
It appears M7 stingrays and GS don't have the AFM exhaust valves. Operation of AFM w/ the M7 for the engine remains the same - i.e. must be in eco mode for it to activate.
Last edited by Foosh; Sep 6, 2016 at 09:05 PM.
Thread Starter
Drifting
Joined: Dec 2015
Posts: 1,410
Likes: 414
From: Germantown Maryland
Yes, typical thread creep to get into questions that weren't asked. So it appears the 2017 M7s are now set up like th Z06's have been, w/o AFM valves in the exhaust pipes. That was the only thing I was asking about. I sure wish my 2016 Z51 M7 did not have these since they seem to be a semi-common point of failure and I tend to keep my cars for a long time. Probably an expensive repair sometime down the road.
Last edited by raylo; Sep 6, 2016 at 09:08 PM.
Team Owner
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Exactly my point to Onpoint, who apparently didn't get it exactly right w/ regard to the GS.
To me, the AFM's have always been essentially irrelevant to M7 owners from the beginning.
To me, the AFM's have always been essentially irrelevant to M7 owners from the beginning.
Last edited by Foosh; Sep 6, 2016 at 09:10 PM. Reason: Added quote due to intervening post
The Consigliere
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Team Owner
Joined: Oct 2004
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The Consigliere
Joined: May 2006
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From: 2023 Z06 & 2010 ZR1
I suppose I should have said M7 Stingrays and M7 GSs.
My apologies.
The Consigliere
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