Does a tune get your rev matching?

[Tony407]

Did a search. Zero results.

For those of you with the various tunes, (Livernois, etc.) does the tune improve the lazy downshifts when using the paddle shifters? In other words, does the tune change it so you get a blip to the throttle to rev match? I called Livernois and got a fairly ambiguous answer & I couldn't seem to get a more concrete one.

Tony

 

[SurrealOne]

I would say it does not change the rpm limiter for downshift. I have tried to downshift with the rpm to high it will not downshift. I'm not sure what the set point is. I have the livernois tune.

 

[Tony407]

I would say it does not change the rpm limiter for downshift. I have tried to downshift with the rpm to high it will not downshift. I'm not sure what the set point is. I have the livernois tune.

But did the tune give you rev-matching when you downshift, as opposed to not having it with the stock tune?

Thanks!

Tony

 

[SurrealOne]

But did the tune give you rev-matching when you downshift, as opposed to not having it with the stock tune?

Thanks!

Tony

I would say no. But I'm not an expert. Just a everyday driver. I have not noticed any changes in the paddle shifters when down shifting.

 

[Boostking]

I do not believe you can have "real" rev matching on the Sport. The upshift and downshift can be greatly improved, but I wouldnt call it rev matching. Basically when you click the paddle to down shift, its not going to blip the throttle to match the next gear RPM' before completing the shift, its just going to downshift.

 

[Tony407]

Thanks, everyone.

Tony

 

[Tony407]

One more question. Do the tunes get rid of the 4K RPM rev limiter when in park?

Tony

 

[Boostking]

They can with SCT and a custom tune. I'm not sure why that would be beneficial however there is literally a table called rev limit in neutral which usually also applies to park.

 

[Quicksilver]

But did the tune give you rev-matching when you downshift, as opposed to not having it with the stock tune?

Thanks!

Tony

Put the selector knob in sand mode and see if that's enough matching for you. I love sand mode, I use it every time I drive tho in stop and go traffic I've turned it off a few times because it can make the drive feely 'jumpy' with small throttle inputs.

 

[Tony407]

Put the selector knob in sand mode and see if that's enough matching for you. I love sand mode, I use it every time I drive tho in stop and go traffic I've turned it off a few times because it can make the drive feely 'jumpy' with small throttle inputs.

I love sand mode too, but it does nothing for rev matching unfortunately.

Tony

 

[Quicksilver]

Hmm, I coulda sworn my Sport had it *before* the tune. I guess I've had the LMS tune so long I've forgotten what life was like 'before'

 

[Tony407]

Not written for anyone in particular, but I've found a general lack of understanding when it comes to rev matching and throttle blipping in automatic transmissions. Here's a video of a Mercedes AMG 63 series that's had some software tweaks to get a throttle blip during downshifts. It has a good explanation in the video description too.

https://www.youtube.com/watch?v=mIIvEnR3KUA

Tony

 

[pup5581]

Put the selector knob in sand mode and see if that's enough matching for you. I love sand mode, I use it every time I drive tho in stop and go traffic I've turned it off a few times because it can make the drive feely 'jumpy' with small throttle inputs.

Why you use sand mode? Just better response?

 

[Quicksilver]

Why you use sand mode? Just better response?

Better response yes but turning off the traction control is my favorite feature of sand mode

 

[Jvallejo22]

Just tried the sand Mode on my xSport and it definitely makes a difference haha. But like you said I wouldn't use it in traffic. Maybe more on the highway / open road.

 

[explosportguy]

Not written for anyone in particular, but I've found a general lack of understanding when it comes to rev matching and throttle blipping in automatic transmissions. . . .Tony

Haven't watched the video yet, but a few general comments on how we got here. Wow, I guess I'm the old fart. Rev matching and heel and toe shifting techniques were required prior to synchromesh because the transmission would not shift down if the gear speeds were not matched. After synchromesh, heel and toe shifting was still taught (and still is taught) to allow downshifting without upsetting a car that is in transition. Modern DCS cars like my wife's S5 employ true rev matching for the same reason (to not further agitate a car that is already dealing with all the input it can handle). Some non-DCS auto cars (like the 400hp SS Camaro my wife used during our classes at Bondurant) also have true rev matching capability.

Alas, our X-sports simply downshift when the vehicle speed falls within the rev limits for a particular gear, creating a braking effect as the drive train drags the engine revs up to match the drive train's relative speed. There's really no way to fake the rev match, so no cool sounds setting up for that turn into the subdivision and no way to keep a downshift from adding unwanted excitement to your life when you're already 10/10ths committed to a corner.

Sand mode helps by hanging the shifts, putting more power to the rear wheels and disabling the nanny modes, but you still have to be really careful during trail braking if you want a downshift prior to the apex.

I've just ordered the Livernois tunes, so I'll gladly report back if I'm mistaken because I really do like the sound of a well executed heel and toe downshift

 

[Tony407]

Haven't watched the video yet, but a few general comments on how we got here. Wow, I guess I'm the old fart. Rev matching and heel and toe shifting techniques were required prior to synchromesh because the transmission would not shift down if the gear speeds were not matched. After synchromesh, heel and toe shifting was still taught (and still is taught) to allow downshifting without upsetting a car that is in transition. Modern DCS cars like my wife's S5 employ true rev matching for the same reason (to not further agitate a car that is already dealing with all the input it can handle). Some non-DCS auto cars (like the 400hp SS Camaro my wife used during our classes at Bondurant) also have true rev matching capability.

Alas, our X-sports simply downshift when the vehicle speed falls within the rev limits for a particular gear, creating a braking effect as the drive train drags the engine revs up to match the drive train's relative speed. There's really no way to fake the rev match, so no cool sounds setting up for that turn into the subdivision and no way to keep a downshift from adding unwanted excitement to your life when you're already 10/10ths committed to a corner.

Sand mode helps by hanging the shifts, putting more power to the rear wheels and disabling the nanny modes, but you still have to be really careful during trail braking if you want a downshift prior to the apex.

I've just ordered the Livernois tunes, so I'll gladly report back if I'm mistaken because I really do like the sound of a well executed heel and toe downshift

Your words are music to my ears!! Yes...I'd love to hear a report back once you get the tune!!!! Thanks!

Tony

 

[explosportguy]

Your words are music to my ears!! Yes...I'd love to hear a report back once you get the tune!!!! Thanks!

Tony

Hey Tony, will do. Tuner should be here Thursday, depends on how fast I can send the strat code and LMS can send the files back. Hopefully I'll have something to post during the weekend.

 

[Quicksilver]

I'm checking in for your results too Fred, I tuned my '14 E sport almost right away so I cant say if it rev matched when stock. I sure thought it did but yeah, maybe its in the LMS tune

 

[explosportguy]

I'm checking in for your results too Fred, I tuned my '14 E sport almost right away so I cant say if it rev matched when stock. I sure thought it did but yeah, maybe its in the LMS tune

I hope so, that would be awesome. Hopefully I'll have some results this weekend.