[AndyUK]

Originally Posted by Juliannnt

Can't comment on A8, as I haven't driven it, my car is manual. However I really do think that if you installed it, and switched between the 'sp 0' which is no modified input from the controller to 'sp 9' which is the highest sensitivity, you will without a doubt feel the difference.

Ofcourse you will feel a difference, youve just created a digital throttle, on or off with no control over part throttle.

I'll be tuning my car anyway, so I will make use of the throttle tables to improve tip in if needed, but I have no desire to remove all the dynamic range.

Thats why track mode is linear 0 to 100% matched to the pedal. Linear response is good. You just want to improve tip in which is obviously increased in touring mode and you want minimised in track mode.

[Megahurtz]

Originally Posted by PnCRedJwl2SS

No...No it doesn't. I had the VTC in my 2010 2SS and it was the very first thing I bought after getting my 2017 2SS. Until you drive it, you won't get it. The moment you do...you will. I've driven my 2017 in both Tour and Sport with and without VTC installed. A WORLD of difference!

I know what it does. You can do the same thing with HPTuners. I just don't personally see a reason to make the throttle so sensitive. I just mash my foot down a little further. But again, like I said this is my subjective view.

[thundercrakcer]

The reason why I got the VTC was because of the slow throttle response/lag when in 1st or 2nd gear and here's why. I got my car in July and didn't notice anything at first, but after getting used to the car later I found lag when I wanted to give it a little punch to get around traffic or pass others. Example, and this happened many times; I was stuck in traffic in the left lane, saw there was room on the right to get around cars turning left up ahead. So I would give it some gas to start going, maybe 1/4 throttle of a little over (and this is the part your body would brace for the....for lack of a better term, launch) but nothing happened and then it would start taking off slower then expected. So that really annoyed me and knowing what the VTC does, I got one. I'm happy with it and with my driving style I only need to keep it at 4 for DD. Just my 2 cents.

[crankaholic]

Originally Posted by AndyUK

Thats why track mode is linear 0 to 100% matched to the pedal. Linear response is good. You just want to improve tip in which is obviously increased in touring mode and you want minimised in track mode.

Track mode is not linear... that's the whole issue. Tour and Sport are completely useless if you want to heel-toe downshift :(

I actually disconnected my VTC recently... I'll give them a call before I post anything.

[Sledgehammer70]

Originally Posted by PnCRedJwl2SS

Bottom line...you're not getting any more horsepower...but it WILL feel like it. The car will feel and react differently than it does without the VTC. 99.9% of you who get it will love it. A few won't...that's just life.

For me...it is the mod that has yielded the most obvious and perceptible, unmistakable performance effect compared to any other mod I have ever done on my car. In full disclosure, I have only ever done naturally-aspirated stuff. No super- or turbo-chargers. But I don't think I'll be picking up one of those for $180.

To those who don't believe it will make this much of a difference...just try it. If you don't like it, you'll have no trouble selling it (gently used) at nearly the price you bought it.

It really will deliver a significant change/enhancement to your driving experience in these cars.

This sums it up nicely. I love mine but know it adds no power, but the feeling of the power at my toes changed the car for me vs. having to mash my foot down (which you still do for WOT) but the off the line feel was worth the cost of admission.

My overview / preview... man watching this video hurts my face, I really suck at making vids.

[PnCRedJwl2SS]

Originally Posted by Sledgehammer70

This sums it up nicely. I love mine but know it adds no power, but the feeling of the power at my toes changed the car for me vs. having to mash my foot down (which you still do for WOT) but the off the line feel was worth the cost of admission.

My overview / preview... man watching this video hurts my face, I really suck at making vids.

Thanks Matt...I enjoy your videos. Keep 'em coming! I like how you said, the VTC "changed the car for me." That's exactly how I feel about it. Wouldn't want to drive the car without it now. Mine stays on SP5 most of the time, but I step it up higher when I'm just out having fun.

Seriously folks...just try it!

[MrChrisLS3]

Originally Posted by Sledgehammer70

This sums it up nicely. I love mine but know it adds no power, but the feeling of the power at my toes changed the car for me vs. having to mash my foot down (which you still do for WOT) but the off the line feel was worth the cost of admission.

My overview / preview... man watching this video hurts my face, I really suck at making vids.

I can't speak for Gen6 yet, but I know that the throttle lag in my '11 SS is beyond annoying. I know many say "just push the pedal farther", but there's more to it than just that. Again, don't know about this car, but the throttle mapping in the LS drive by wire really holds back throttle response before 50% pedal, then it's almost like an on/off switch. Kind of like going on an on ramp, feel the lag and hit the pedal, next thing you know you're in the back end of somebody.

The best way I can describe it is that it makes the DBW feel like a cable throttle. To me, there's just a lot more control in that intermediate range.

Some say the lag can be tuned out, and some say that when you mess with the throttle mapping, you get a permanent reduced power situation. I don't know.

Whatever the case, for a stock car, I thinks it's well worth the money.

[TenSeven]

Adding a VTC to my SS greatly improved the throttle response, it eliminated that annoying lag that A8's seem to have.

I thought it was probably an overpriced gimmick. I bought one, installed it, calibrated it, and reaffirmed the lesson:

"Why is it expensive? Because it works."

[1LE801]

JUNK! Far too many people having issues with these

[raptor5244]

The perceived lag is probably tuned in by design so that a 1/4 inch of throttle doesn't equal WOT, which can be very dangerous in a car with this much power. Also keep in mind when the A8 enters Performance Shift mode where it is holding a lower gear at higher rpm. You may not want the throttle to be too sensitive as you get back on the gas while exiting a corner. Too much tip-in in certain situations could have you facing the wrong way.

That said, if you are just looking for a device to override the default throttle mapping this device seems to do the trick. IMO, you can just adapt to the default throttle mapping and push the gas pedal further when needed.

[crazydmc]

Originally Posted by raptor5244

The perceived lag is probably tuned in by design so that a 1/4 inch of throttle doesn't equal WOT, which can be very dangerous in a car with this much power. Also keep in mind when the A8 enters Performance Shift mode where it is holding a lower gear at higher rpm. You may not want the throttle to be too sensitive as you get back on the gas while exiting a corner. Too much tip-in in certain situations could have you facing the wrong way....

I don't think anyone wants WOT at 1/4" pedal... but I do want SOME engine response at 1/4" pedal... and NOT depending on which driving mode i'm in.

i'm driving a manual so for example light turns green, I need to hit the gas and let out the clutch... it sucks when you hit the gas and nothing happens just because I changed modes. hard to anticipate that.

i drove my jeep around last weekend and it feels wildly different, clutch grabs at top of the pedal, stick shift moves loosly about 18" left to right (it seems) -- but I get used to it after a few shifts.

heck, when I got back into my SS I stalled it backing out of the garage cus the clutch grabs much closer to the floor... but I get used to it after a couple shifts.

but it is hard to get used to how much to push the SS gas pedal if it keeps changing. enough on this for me... i just keep it in sport and i'm used to that. I put it in tour on the freeway for some perceived softness.

[ny tdi]

Asking why we need VTC is like asking, "hey fella, why Have sex with your lady if artificial insimination does the same thing!?"

[geaux_tigerss]

Originally Posted by crazydmc

I don't think anyone wants WOT at 1/4" pedal... but I do want SOME engine response at 1/4" pedal... and NOT depending on which driving mode i'm in.

i'm driving a manual so for example light turns green, I need to hit the gas and let out the clutch... it sucks when you hit the gas and nothing happens just because I changed modes. hard to anticipate that.

i drove my jeep around last weekend and it feels wildly different, clutch grabs at top of the pedal, stick shift moves loosly about 18" left to right (it seems) -- but I get used to it after a few shifts.

heck, when I got back into my SS I stalled it backing out of the garage cus the clutch grabs much closer to the floor... but I get used to it after a couple shifts.

but it is hard to get used to how much to push the SS gas pedal if it keeps changing. enough on this for me... i just keep it in sport and i'm used to that. I put it in tour on the freeway for some perceived softness.

I wish we could decouple throttle response from driving mode. I like that I can control steering and exhaust from the infotainment screen, it would be nice to have throttle added to that.

[WhyUMad1LE]

Originally Posted by Megahurtz

I don't get it, Tour mode vs Sport does the same thing with the throttle.

Tour and Sport have the same throttle map. It would change the auto trans shifting though.