M7 Active Rev Matching is Witchcraft
#1
M7 Active Rev Matching is Witchcraft
Just turned it on for the first time yesterday and my jaw dropped.
It is TOO GOOD. Its amazing how well this feature, which I went in thinking was a gimmick, works!
It is TOO GOOD. Its amazing how well this feature, which I went in thinking was a gimmick, works!
#2
E-Ray, 3LZ, ZER, LIFT
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^^
No gimmick! Been using it 98% of the time in my September 2013 built C7 and now my Grand Sport! Especially for lower speed downshifts when skipping gears it does a better job than a skilled heel-toe driver, IMO! I'll explain.
I have been driving standard shift cars for almost 60 years exclusively as my DD! Quite good at heel-toe (or in a Vette with properly spaced peddles, toe-side of foot) when driving in anger! Frankly not difficult to learn to mash the throttle when downshifting one gear where the lower gear will be closer to redline. However modulating the throttle at lower speeds is not as easy to get a perfect rpm match. Good example was my C6, got a great rpm match at higher rpms but the on the turn into our 25 mph road to my home from the highway got that downshift perfect only half the time! Rev Match has made it perfect 100% of the time.
A common shift for me is 5th to 3rd when making a turn in town going 45 mph! That's 1400 rpm to 2800 rpm. Modulating the throttle to get a perfect match every time is not easy. Another is when exiting from the Interstate. 65 mph in 7th is ~1400 rpm and why go through two other overdrives, 6th and 5th, when direct drive 4th is where you want to be for the off ramp and after. That is only 2800 rpm in 4th and even less if you cost before shifting. In fact the shifter springs make that a natural shift. Just pull back on the shift level with no side pressure and you are there with a perfectly smooth transition. In fact I use that is want I do to pass an 18 wheels to limit time exposure to rocks thrown from the tires (had that happen a month after I got my C7!) Then go directly back to 7th from 4th and unique to the C7, if you were on cruise control, it goes back to the setting without having to hit resume, even though the clutch was depressed!
Yep Rev Match is the best thing since synchromesh for a standard shift, IMO!
No gimmick! Been using it 98% of the time in my September 2013 built C7 and now my Grand Sport! Especially for lower speed downshifts when skipping gears it does a better job than a skilled heel-toe driver, IMO! I'll explain.
I have been driving standard shift cars for almost 60 years exclusively as my DD! Quite good at heel-toe (or in a Vette with properly spaced peddles, toe-side of foot) when driving in anger! Frankly not difficult to learn to mash the throttle when downshifting one gear where the lower gear will be closer to redline. However modulating the throttle at lower speeds is not as easy to get a perfect rpm match. Good example was my C6, got a great rpm match at higher rpms but the on the turn into our 25 mph road to my home from the highway got that downshift perfect only half the time! Rev Match has made it perfect 100% of the time.
A common shift for me is 5th to 3rd when making a turn in town going 45 mph! That's 1400 rpm to 2800 rpm. Modulating the throttle to get a perfect match every time is not easy. Another is when exiting from the Interstate. 65 mph in 7th is ~1400 rpm and why go through two other overdrives, 6th and 5th, when direct drive 4th is where you want to be for the off ramp and after. That is only 2800 rpm in 4th and even less if you cost before shifting. In fact the shifter springs make that a natural shift. Just pull back on the shift level with no side pressure and you are there with a perfectly smooth transition. In fact I use that is want I do to pass an 18 wheels to limit time exposure to rocks thrown from the tires (had that happen a month after I got my C7!) Then go directly back to 7th from 4th and unique to the C7, if you were on cruise control, it goes back to the setting without having to hit resume, even though the clutch was depressed!
Yep Rev Match is the best thing since synchromesh for a standard shift, IMO!
Last edited by JerryU; 02-10-2018 at 09:05 AM.
#3
Team Owner
Super feature use mine 100% of the time.
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UsernameProtected (02-10-2018)
#6
Burning Brakes
I would enjoy the car much less if it didn't have rev match. I wouldn't want to buy another manual tranny car without it. The combo of rev match and big V8 is wonderful.
#7
Stop it please, you're going to make me think I should have ordered my 2019 GS Coupe with a M7 instead of the A8.
#8
Burning Brakes
#9
Rev Match FTW
Sold my beautiful DSOM A8 Stingray for a CE M7...regretted the A8 from day one...wifey pressured me for the A8..1 year in and I woke up and was like WTF...hello Jesse at Macmulkin?
#10
Burning Brakes
I know what you mean, but I did have an incident about a week ago that does justify GM's decision not to have it come on automatically. The reasoning is that you can over rev the engine when it's cold. (3.5k is the "limit" when the engine's cold, iirc.) I was leaving for work one morning and upshifting. For some reason -- maybe my shifting was sloppy and ARM thought I was downshifting -- rev match kicked in and revved pretty high. I didn't look at the tach, but it probably exceeded 3.5k. At any rate, ARM can lead to revs that are too high for a cold engine, and that's why it doesn't come on automatically. GM wants you to wait until the engine warms up to turn on ARM.
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Skid Row Joe (02-10-2018)
#11
Le Mans Master
I think the rev match works well. But I love the satisfaction of blipping the throttle myself and flawlessly hitting that downshift.
#12
Melting Slicks
Love it too, and as much as I really enjoyed the sound of it in my Z51, the sound the Z06 makes with it is amazing
#13
I know what you mean, but I did have an incident about a week ago that does justify GM's decision not to have it come on automatically. The reasoning is that you can over rev the engine when it's cold. (3.5k is the "limit" when the engine's cold, iirc.) I was leaving for work one morning and upshifting. For some reason -- maybe my shifting was sloppy and ARM thought I was downshifting -- rev match kicked in and revved pretty high. I didn't look at the tach, but it probably exceeded 3.5k. At any rate, ARM can lead to revs that are too high for a cold engine, and that's why it doesn't come on automatically. GM wants you to wait until the engine warms up to turn on ARM.
#14
E-Ray, 3LZ, ZER, LIFT
Member Since: Sep 2007
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The dual clutch option would be better than GM insisting we get their “slush box” trans because they make it! Can hear the “marketing speak” now as to why it is so great!
Note GM: That Doug Nash 4 speed with electric activated overdrive in my ‘88 was the same price as an auto trans. Some of us will pay for what we Want! Funny, even back in late 1987 when I ordered the ‘88, the sales manager said I’ll have to ask for $2000 non refundable deposite as If you don’t take the car for whatever reason, I’ll have a hard time selling it! One of my young product managers who drove a Vette looked inside the ‘88 when I drove it work. He said, “Too cheap to buy an automatic?” I just smiled as he would not understand paying the same price for a standard shift!
Last edited by JerryU; 02-10-2018 at 12:07 PM.
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#17
E-Ray, 3LZ, ZER, LIFT
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Location: NE South Carolina
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Bcarr (02-10-2018)
#18
Absolutely!
That's tragic, but a decision that can be negated very quickly.
Me too. I swore I'd never buy another auto trans Corvette again. To me, that's like giving up your driver license.
You were redeemed. Give thanks and praise!
You were redeemed. Give thanks and praise!
Last edited by Skid Row Joe; 02-10-2018 at 05:27 PM.
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Bcarr (02-10-2018)
#19
ARM is truly a magnificent feature. The first thing I do after starting the car is flip the paddle to enable it.
#20