2018 Rev Matching

[HeavyMetalMonk]

With the Mustang MT rev matching is a voice activated option for those who aren't able to do it with their foot. Just say "Vroom crackle pop pop" at the entrance of each corner.

I tried this and the woman in the computer just laughed at me.

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[BmacIL]

Was told several times that the 18 manual would have auto rev matching by people involved in the calibration. Either removed or is Job 2/2019MY.

 

[TomcatDriver]

Unfortunately this isn't the case, you need additional sensor hardware in the transmission/shifter to do auto rev matching properly like in GM performance cars.

I could be wrong, but I'm pretty sure the ECU knows what gear you are in already even in a manual. It knows when the clutch is depressed. It knows speed. What other information would it need?

 

[Bravo]

I could be wrong, but I'm pretty sure the ECU knows what gear you are in already even in a manual. It knows when the clutch is depressed. It knows speed. What other information would it need?

Nothing else is needed. At this point, the ECU knows everything needed to make rev matching a thing in Ford vehicles. Gear ratios are known. RPM is known. Selected gear is known.

All that's missing is the calibration for each setup and software implementation on the vehicle to make it a reality.

I get the "use your feet to rev match" mentality - I honestly do. But my experience with manual transmissions is severely limited, and I've been spoiled with dual clutch autos in the past.

If a manual transmission would act like a dual clutch with a 3rd pedal (which is basically how a rev matching manual behaves), then it would be the difference between me buying an A10 and a 6spd. For purists, it can always be turned off - it's not new physical hardware on the vehicle.

 

[millhouse]

You just need this...

https://www.auto-blip.com/

 

[Bravo]

You just need this...

https://www.auto-blip.com/

That's a very crude solution...but not really rev matching. That's equal to a blip that you roughly calibrate based on one's method of driving, and hopefully gets the RPM close to where it should be when you shift down.

Rev matching actually matches up and down, and holds the engine RPM at the exact speed for the gear that you've selected. You can hold the clutch down and row through the gears and watch the engine change the RPM as you change gears. As you release the clutch, the engine's RPM is matched perfectly for the gear that it's engaging, resulting in a perfect transition between gears. In short: Your syncros will do very little work.

It also makes stalling a thing of the past, as the engine revs up to match 1st gear when the gear is selected.

As mentioned many times, for a purist it's simply no fun, but it only takes a few button pushes to turn it off (and I'd bet that a few purists would leave it on).

If you've ever driven a dual clutch, it behaves very similarly (just a bit slower, as the human is shifting gears rather than a computer). If you manually shift a dual clutch, you'll feel the car go from neutral, rev/drop RPM + hold, and engage. On a dual clutch, it happens insanely fast, but the principal is the same.

 

[l'Ingegnere]

I could be wrong, but I'm pretty sure the ECU knows what gear you are in already even in a manual. It knows when the clutch is depressed. It knows speed. What other information would it need?

It doesn't really have to do with additional information per say, more so how early the ecu knows that you are going to downshift. GM performance cars that auto blip have a type of strain gauge sensor in the gearbox that allows the car to know extremely early of an impending downshift. In the absence of this type of sensor, it's quite possible to "beat" the blip on certain high speed (meaning gate-to-gate) shifts like 4->3 in the hands of a capable driver. Having this type of strain gauge sensor also helps to greatly diminish the occasional missed blips that are sometimes mentioned with systems like Auto-Blip.

 

[millhouse]

That's a very crude solution...but not really rev matching. That's equal to a blip that you roughly calibrate based on one's method of driving, and hopefully gets the RPM close to where it should be when you shift down.

Rev matching actually matches up and down, and holds the engine RPM at the exact speed for the gear that you've selected. You can hold the clutch down and row through the gears and watch the engine change the RPM as you change gears. As you release the clutch, the engine's RPM is matched perfectly for the gear that it's engaging, resulting in a perfect transition between gears. In short: Your syncros will do very little work.

It also makes stalling a thing of the past, as the engine revs up to match 1st gear when the gear is selected.

As mentioned many times, for a purist it's simply no fun, but it only takes a few button pushes to turn it off (and I'd bet that a few purists would leave it on).

If you've ever driven a dual clutch, it behaves very similarly (just a bit slower, as the human is shifting gears rather than a computer). If you manually shift a dual clutch, you'll feel the car go from neutral, rev/drop RPM + hold, and engage. On a dual clutch, it happens insanely fast, but the principal is the same.

Crude or not, it does exactly what 95% of drivers who rev match do with their left foot...and what 95% of owners looking for the function need it to do.

 

[MasterCylinder]

Does anyone know how to turn off the factory rev matching system? I don't seem to be finding any documentation on it.

 

[Bravo]

Does anyone know how to turn off the factory rev matching system? I don't seem to be finding any documentation on it.

It doesn't exist (yet) on the 6MT. If you're looking to turn it off on the A10, then the answer is likely "no", at least no outside of a tune. The transmission is relying on that feature to shift smoothly, and honestly, why would you want to turn it off on the A10 when you have no other control over the transmission?

 

[DickR]

Does anyone know how to turn off the factory rev matching system? I don't seem to be finding any documentation on it.

Assuming you mean with the 10 speed automatic try putting the shifter in D and leaving drive modes in normal. Works with mine.

If you still want some manual control of the gears the paddles work in D in a more limited way than in S. If you need/want more engine braking when coasting (no throttle) a paddle downshift will last until you add throttle. If you need/want a brief downshift without simply using more throttle a paddle downshift will last about 3 seconds.

 

[TexasRebel]

As you release the clutch, the engine's RPM is matched perfectly for the gear that it's engaging, resulting in a perfect transition between gears. In short: Your syncros will do very little work.

By the time you are into gear the synchronizers have already done their work. Rev-matching does not reduce synchro wear.

It also makes stalling a thing of the past, as the engine revs up to match 1st gear when the gear is selected.

If the engine revs to match 1st gear at a stoplight... wouldn't that be a stall? :lol:

 

[Bravo]

By the time you are into gear the synchronizers have already done their work. Rev-matching does not reduce synchro wear.

Ahhhh - you're right. For some reason I had in my mind that the synchros wouldn't be "working" until the clutch pedal was released...that obviously doesn't make sense.

 

[TexasRebel]

Interesting. I test drove one yesterday and either it doesn't have rev matching or it was disabled. Rev Match is mentioned as a menu item on page 96 and it says this on page 97 -

Note: The menu options for Performance
Shift Indicator, Launch Control, and Rev
Match are for manual transmissions only

Interesting... This appeared in Printing 2. It was not in the original.

 

[Mountain376]

By the time you are into gear the synchronizers have already done their work. Rev-matching does not reduce synchro wear.



If the engine revs to match 1st gear at a stoplight... wouldn't that be a stall? :lol:

It probably reduces syncho wear, but to a degree that is negligible. The point of rev-matching, in the sense we are speaking to with "auto rev-matching" here, is to speed match two gearsets to or as-close-to as possible for a more seamless and less shocking load on the powertrain on a downshift... Rev-matching happens as you are shifting. The synchros are in play.

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