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I did it yesterday...
Here's my ultra technical opinion

1) Shifting from 1-2 is a lot more responsive and powerful now
2) Gears 1 and 2 CAN be choppy at first...by that I mean the car will jerk like you're going too fast in 1st gear in a parking lot, however this is easily corrected with technique, and you'll get over it quickly
3) Overall, I like the feel of it, and find low gear shifts to be smoother.
4) the little switch is actually higher up than I expected, you really gotta get down low to see it, but its easy to pull
 

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Yup. Did it the other day and I posted an explanation of how it works too.

Throttle response has improved, revs quicker, no upshift prompt, no cruise. But, at very low speeds -20 it does feel choppy and almost too sensitive. Like mentioned about, you can probably just adjust your driving technique.
 

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you can do this on the M/T? I guess I didn't read much into it and thought the lag they were talking about was for the A/T. I will have to check it out.

It looks like it changes the TPS voltage to make it more responsive or something?
 

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After reading the post you had on *****, I think I will try it but I don't think it will be worth losing cruise control for me or possible pre-mature wear on transmission components. I will try my best to log the differences between the two setups also but not sure I will be able to capture it in the log..

"The only thing I can see from the Velosters tech manual is that the clutch switch (not ignition lock switch) sends a signal to the ECU to indicate that the clutch is pressed, this aids in improved shift timing for syncronization, reduced wear on clutch assembly and NVH.

Untechnical version would be, when the ECU detects that the shift pedal has moved from it's rest position it predicts that a shift is about to occur. When this happens the engine changes it's throttle response, fuel and other various things to prepare for the gear change. Since there is no gear indication module (no little box on the transmission determining the gear it's in or going to be in) the ECU doesn't resume it's regular status until the clutch switch returns to it's open state (pedal going back to rest).

If the ECU never sees that signal, it never adapts/prepares for the shift, hence the "improved" performance.

Understand though that that system might have been installed for a reason, whether to reduce bearing wear, reduce clutch wear, cancel out harsh temporary NVH that can cause premature failure of rotating assemblies, improve fuel economy or whatever else it might be responsible for. The negatives won't be immediate however, more than likely several years or 10's of thousands of KM's. Who knows. But car makers don't usually put systems like that in there for no good reason.

Reason cruise is killed is the switch only transmits an open or closed signal, rest is open (no signal) so disconnecting it shouldn't affect it. Thing that comes to mind is that the ECU verifies that the switch is operating correctly upon start up by starting with a closed signal from the clutch switch and ignition lockout at the same time. The ECU wasn't programmed to rely on both switches for proper startup but the Cruise control relies on the clutch switch as a "cancel" button, so failure of that switch alone would permit starting but wouldn't allow cruise control as a safety mechanism is faulty.

Easiest way to test it would be to start the car with both switches plugged in, then release the clutch to the rest position and then unplug just the clutch switch. If Cruise works than I'm correct, if not, then no idea. If I'm correct, easiest way would be to put a cutout switch between the clutch switch itself and the harness. That way you could push the switch after the car has started to cutout the clutch switch enabling a more "sporty" shifting while still letting you use your cruise."
 

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Im going to try it for a few days but I drive mostly in the city and if I cant adapt to the touchy low speed performance , its getting plugged back in.
 

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yeah, I don't think I will like the touchy/chattery or w/e low speed performance, I will try it though. no harm in trying it out..

I feel that the throttle response is pretty good as it is but a lot of people seem to be praising it.. I wonder if I can get a couple side by side logs comparisons of 0-say 75 performance to see if it in fact is helping or it just feels like it.
 

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If you're in constant traffic it could get annoying perhaps.
I'm gonna see what it's like for the next couple of days and see.
So far I like it though.
 

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What's up everyone I just got my turbo black veloster, love it so much it's my 1st Hyundai, had 06 civic si and tc Camry many different cars but this one is by far the best. I do feel the lag so I'm gonna go try unplugging the switch to see how it goes I'll let u all kno.
 

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Well I tried it only drove down the block and back have a 10 mile drive to work in am I'll give input it seemed a little different but won't kno till tomorrow.
 

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It would seem that whenever you let off the throttle at least at somewhat lower RPM's, regardless of gear, it jerks a little.
I'm not sure if I'm loving this anymore. A couple more days and I'll decide whether or not I'm keeping it.

My passengers are not too thrilled about it though.
 

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Drove to work this morning so far I like the feel and response, I dont think its rough at all but I have been driving manual cars forever :)
Im gonna drive like this for a couple days the plug switch back in for a couple days and see how much different it is.
 

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Did the mod over the weekend and i love it, i can chirp 4th not even trying :) It is actually smoother to shift for me with it off but i guess we all shift a little different from each other.
 

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I will have to check this out and then also try to compare the logs to see how they look side by side.
 

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Discussion Starter · #16 ·
I will have to check this out and then also try to compare the logs to see how they look side by side.
did you do a comparison yet ?
 

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Well I just did this for the past week and I love this setup way better. But what I don't like is no cruise control. So yesterday I'd installed a switch and now I can switch it on to Eco Mode and off for Power mode. I have it mount right on the fuse panel. It cost me $15.00 at Walmart to do the whole setup. You can turn it on and off while you're driving and plus you can tell the different when you switch it off and on. The throttle lag it definitely there when it on by when it off it a whole new ball game. Here's photos and the switch I brought.





Vehicle Car Auto part Family car Vehicle Car Vehicle door Yellow Technology Transparency
 

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Well I just did this for the past week and I love this setup way better. But what I don't like is no cruise control. So yesterday I'd installed a switch and now I can switch it on to Eco Mode and off for Power mode. I have it mount right on the fuse panel. It cost me $15.00 at Walmart to do the whole setup. You can turn it on and off while you're driving and plus you can tell the different when you switch it off and on. The throttle lag it definitely there when it on by when it off it a whole new ball game. Here's photos and the switch I brought.

View attachment 1220 View attachment 1221 View attachment 1222
Nice!!! That's the way I would've done it. I'm debating about buying the switches like the one that match the VT illumination panels, so it look stock.
 

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Nice!!! That's the way I would've done it. I'm debating about buying the switches like the one that match the VT illumination panels, so it look stock.
Even if you do that from where I mount the switch you wont see it from where you're sitting at. If not worth it unless you want to cut up the dash to mount one on there. Just so you know, you can't mount it next to the illumination light switch and parking mode switch. It's a all solid circuit panel even though there are blank spots that look like it could be mounted on. This is why I mount it on the fuse panel instead. Check this post and you'll see the circuit board. Found the fix for the shift lag - Upper/Lower clutch switches. So amazing. - Page 9
 

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Discussion Starter · #20 · (Edited)
i finally did this mod
its GREAT , stupid lag is all gone , car pulls so much better between 1st and 2nd, now i just have to get a switch and install it on the fuse box door
 
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