Rev Match downshift v. Normal downshift

[JmalB]

If that's happening to you on the street you're driving too damn fast.

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[toplesstripcruiser]

IMO not needed to downshift and pass. Since you are pressing the accelerator anyway to pass, so you won't have that backward lunge of the car. And as far as slowing down, like I said I just put it in neutral and use the brakes, less wear on the transmission, and better MPG since the engine is disconnected from the wheels and just idling.

 

[fordmustanglove]

I have driven manuals for over 40 years and have never rev matched a down shift on the street. Many of my cars were well in excess of 200,000 miles and I have never worn out a clutch or a syncro.

If you were riding with me and didn't see me move the shift lever you wouldn't know I shifted.

The only reason to rev match is to prevent upsetting the chassis during aggressive on the track.

Dave

It's important to master if you have a stick....those who say they dont, should check out this video on why you need to [ame="[MEDIA=youtube]FnXLZg_O1rk[/MEDIA]"]

the main benefit is clutch speed matches engine speed=no clutch wear

sources: http://www.autoblog.com/2015/10/09/rev-matching-manual-transmission-dying-art/ [ame="[MEDIA=youtube]_cbZlhduYJY[/MEDIA]"]

 

[fordmustanglove]

IMO not needed to downshift and pass. Since you are pressing the accelerator anyway to pass, so you won't have that backward lunge of the car. And as far as slowing down, like I said I just put it in neutral and use the brakes, less wear on the transmission, and better MPG since the engine is disconnected from the wheels and just idling.

puting the car in neutral acutally uses MORE gas
source http://www.popularmechanics.com/cars/hybrid-electric/a5977/coasting-in-neutral-fuel-economy/

I think it is useful when you want to drop a gear(s) to accelerate to pass.

FYI You do it entering a turn to avoid engine braking the rear wheels, in addition to the rear brakes, and destablizing the car's balance. If you are turned slightly, or on a difficult camber, it could cause oversteer and/or spinning. One slows you down, the other stops you.

 

[Moddiction]

Not rev matching with a manual car just feels so wrong.

 

[wmsky33]

puting the car in neutral acutally uses MORE gas
source http://www.popularmechanics.com/cars/hybrid-electric/a5977/coasting-in-neutral-fuel-economy/

To put it another way, the ECU is smart enough that, if you are coasting to a stop in gear, it knows that the wheels are turning the engine and it doesn't need to inject fuel to turn the engine. It does this until the wheels are turning the engine less than about 1000 rpm. Then it starts adding fuel to keep the engine from stalling.

You can see this for yourself. Set the LCD gauge to display AFR. Coast to a stop in neutral - you'll see that the AFR stays right around 14.7 (normal stoic AFR). Now coast to a stop in gear - you'll see that the AFR goes to 20 (the highest it reads) which means what's going in to the engine is all air, no fuel.

Does it make an mpg difference? Probably not enough to ever see. But having the car in gear allows you to immediately accelerate if you need to.

 

[MaverickGT]

I rev match most of the time for the fun factor except when getting groceries. Besides, this car wants to be driven.

No need to in parking lots and crowded areas. I wouldn't coast in those areas either as a car out of gear cannot respond as fast as one in gear. I've had a number of times where acceleration was the best course of action to avoid being hit in parking lots.

 

[arcadewilco]

I'm a cheater and installed this for the track.

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

Works great and I use it on the street sometimes when I want to make the 5.0 sound bad @$$.

 

[M3Convert]

I'm a cheater and installed this for the track.

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

Works great and I use it on the street sometimes when I want to make the 5.0 sound bad @$$.

I think I want one of these...it works as advertised? Is there a pause for it to react? It doesn't look like it from the vids

 

[arcadewilco]

Its worked great for me. You can adjust the duration of the blip and also any delay you want. So when you're on the track you can play with it so that the timing is right when you come out of the turns.

I had my installer extend the cord so that I could place it in my center console and hidden. Its nice that you can turn it off when you don't want to use it.

 

[Genxer]

That device looks pretty cool. I rev match all the time, not every time but it does make curvy roads more fun. Sometimes I do it slowing down just for the sonic treat. It does take some practice but when you execute perfectly it is sweet!

 

[EFI]

Replacing brake pads is easier and cheaper than replacing a clutch.

Not sure who's doing the work on your car or what brake components you're buying, but I can have the transmission out, replace the clutch and put it back in in 2-3 hours. And a new clutch is a few hundred bux.

Buying 4 rotors and 2 sets of pads will easily run you just as much if not more, and with 30 minutes per corner probably takes just as much time to do as the clutch.

 

[dgc333]

I would agree that swapping a clutch is not a big job but in general it will be less costly and take less time to do brakes.

The last clutch I did was on my Barracuda, it cost $300 for a Ram Street performance clutch set and took about 4 hours. I did pads and rotors on the front of my pickup not long ago. The rotors were about $35 each, pads were $40 and it took less than an hour.

Dave

 

[jvandy50]

I've never heard of Rev matching til I bought this one. So this is new to me and sounds fun, but normal city driving I kinda feel like a tard doin it. I'd love to hear the tech on why it's better if anyone can point me there.

I will also say, 2 out of my previous 3 mustangs I wore the clutch out fairly quickly on nearly stock power...but they were used and who knows what previous owner did. So I will keep doing it sometimes because the x pipe makes me get mini chubs

 

[GDP]

I've never heard of Rev matching til I bought this one. So this is new to me and sounds fun, but normal city driving I kinda feel like a tard doin it. I'd love to hear the tech on why it's better if anyone can point me there.

I will also say, 2 out of my previous 3 mustangs I wore the clutch out fairly quickly on nearly stock power...but they were used and who knows what previous owner did. So I will keep doing it sometimes because the x pipe makes me get mini chubs

I can also say the rev matching even on the auto is totally new to me but I love it. My previous two mustangs (03, 12) v6 auto mustangs did not have this. My new 16 mustang GT auto does this in S mode and I keep mine is S mode more than D for this reason. I love the sound it makes. Like a race car.

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