C5 Z06 WOT Box
Thread Starter
Racer
Joined: Aug 2017
Posts: 277
Likes: 54
From: Westminster CO
C5 Z06 WOT Box
I currently have the flat foot shift setting active on the box but have been doing a lot of reading and discussing with other car enthusiasts to see whether or not it's worth it. Some say it is, some say it's not. I want to see the general opinion on it.
I've been told that it actually does more damage to the transmission and dif than regular shifting at higher RPM. I've also read that, why would GM integrate this into their C6 Corvettes if it did more damage? And the manufacture claims less mechanical wear.
If you're not using it all the time, or making a lot of passes at the drag strip or at a track, on the few occasions you take off and flat foot shift, is there really going to be a difference in having it or not?
Any input would be appreciated
And for build background:
C5Z w/ typical bolt ons (347 rwhp on Dyno dynamics)
RPM dif & trans
RST mcleod twin disc
I've been told that it actually does more damage to the transmission and dif than regular shifting at higher RPM. I've also read that, why would GM integrate this into their C6 Corvettes if it did more damage? And the manufacture claims less mechanical wear.
If you're not using it all the time, or making a lot of passes at the drag strip or at a track, on the few occasions you take off and flat foot shift, is there really going to be a difference in having it or not?
Any input would be appreciated
And for build background:
C5Z w/ typical bolt ons (347 rwhp on Dyno dynamics)
RPM dif & trans
RST mcleod twin disc
Last edited by Annolino122; Mar 26, 2018 at 02:31 PM.
Pro
Joined: Dec 2015
Posts: 660
Likes: 181
From: Knoxville TN
I’ve had the n2mb box for several years I definitely think it’s good for the drag strip and has helped my times of course you and your car have to be able to shift fast enough to make it worthwhile, mine is set to the quickest setting at .025, once I got better at shifting and got it below.150 my times started improving, if your shifting around.250 or 300 then it’s not going to help
My car is street driven also and I think the momentary cut in ignition is a little easier on the trans than flat foot shifting with no delay, while I want the fastest times at the track I still want to be able to drive it home after racing without breaking
I also like the 2 step feature for launching
My car is street driven also and I think the momentary cut in ignition is a little easier on the trans than flat foot shifting with no delay, while I want the fastest times at the track I still want to be able to drive it home after racing without breaking
I also like the 2 step feature for launching
Thread Starter
Racer
Joined: Aug 2017
Posts: 277
Likes: 54
From: Westminster CO
I’ve had the n2mb box for several years I definitely think it’s good for the drag strip and has helped my times of course you and your car have to be able to shift fast enough to make it worthwhile, mine is set to the quickest setting at .025, once I got better at shifting and got it below.150 my times started improving, if your shifting around.250 or 300 then it’s not going to help
My car is street driven also and I think the momentary cut in ignition is a little easier on the trans than flat foot shifting with no delay, while I want the fastest times at the track I still want to be able to drive it home after racing without breaking I also like the 2 step feature for launching
My car is street driven also and I think the momentary cut in ignition is a little easier on the trans than flat foot shifting with no delay, while I want the fastest times at the track I still want to be able to drive it home after racing without breaking
I also like the 2 step feature for launchingYes the drag strip times and 2 step will be nice once I get it all dialed in!
Advanced
Joined: Jun 2017
Posts: 74
Likes: 21
From: ky
I plan on ordering one in a couple weeks, going to corvette expo this weekend to see if they have a deal there, I got the bolt one to 420hp, weekend fun, so far best 1/8 was 1.7 sixty, 7.3 @96 so excited to see
Drifting
Joined: Apr 2015
Posts: 1,893
Likes: 295
From: Buffalo NY
I have been running the N2MB WOTBOX since Fall of 2017 with no issues. Typically use the No Lift Shift feature couple times a week. The trans shifts just fine after all these years and quick shifts.
For reference, I have run my car against some friends (new 2013 F10 M5)...using traditional clutched shifting lifting off the gas, I would fall behind by a car length or so. Using No Lift shift, dead even all the way up to 140+...
For reference, I have run my car against some friends (new 2013 F10 M5)...using traditional clutched shifting lifting off the gas, I would fall behind by a car length or so. Using No Lift shift, dead even all the way up to 140+...
Last edited by nsogiba; Mar 13, 2019 at 12:24 PM.
Advanced
Joined: Jun 2017
Posts: 74
Likes: 21
From: ky
I have been running the N2MB WOTBOX since Fall of 2017 with no issues. Typically use the No Lift Shift feature couple times a week. The trans shifts just fine after all these years and quick shifts.
For reference, I have run my car against some friends (new 2013 F10 M5)...using traditional clutched shifting lifting off the gas, I would fall behind by a car length or so. Using No Lift shift, dead even all the way up to 140+...
For reference, I have run my car against some friends (new 2013 F10 M5)...using traditional clutched shifting lifting off the gas, I would fall behind by a car length or so. Using No Lift shift, dead even all the way up to 140+...
Drifting
Joined: Apr 2015
Posts: 1,893
Likes: 295
From: Buffalo NY
You can hear it at the beginning of this vid
I do wish it actually shot some flames instead of just burbling
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 315
From: USA
I have no lift shift on another car and I will just tell you that it feels way smoother...used it daily for years. Maybe potentially a little worse on the clutch either way you're cutting power and bringing rpms down the same amount in a quick time.... I feel like the difference is probably negligible. In that car it's fuel cut, not spark cut, but same idea.
From what I understand about the WOTBOX, you program in a time that it cuts power on a no lift shift.... if you set that too low and power comes back before the clutch is fully engaged then I could see a scenario that might be bad on the clutch.
I'm looking into getting a WOTBOX for myself, for no lift shift and as a general rev limiter. I'm running a decent amount of methanol injection, and spark cut ensures no lean burn occurs if/when you hit traditional fuel cut rev limit.
From what I understand about the WOTBOX, you program in a time that it cuts power on a no lift shift.... if you set that too low and power comes back before the clutch is fully engaged then I could see a scenario that might be bad on the clutch.
I'm looking into getting a WOTBOX for myself, for no lift shift and as a general rev limiter. I'm running a decent amount of methanol injection, and spark cut ensures no lean burn occurs if/when you hit traditional fuel cut rev limit.
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Drifting
Joined: Apr 2015
Posts: 1,893
Likes: 295
From: Buffalo NY
I have no lift shift on another car and I will just tell you that it feels way smoother...used it daily for years. Maybe potentially a little worse on the clutch either way you're cutting power and bringing rpms down the same amount in a quick time.... I feel like the difference is probably negligible. In that car it's fuel cut, not spark cut, but same idea.
From what I understand about the WOTBOX, you program in a time that it cuts power on a no lift shift.... if you set that too low and power comes back before the clutch is fully engaged then I could see a scenario that might be bad on the clutch.
I'm looking into getting a WOTBOX for myself, for no lift shift and as a general rev limiter. I'm running a decent amount of methanol injection, and spark cut ensures no lean burn occurs if/when you hit traditional fuel cut rev limit.
From what I understand about the WOTBOX, you program in a time that it cuts power on a no lift shift.... if you set that too low and power comes back before the clutch is fully engaged then I could see a scenario that might be bad on the clutch.
I'm looking into getting a WOTBOX for myself, for no lift shift and as a general rev limiter. I'm running a decent amount of methanol injection, and spark cut ensures no lean burn occurs if/when you hit traditional fuel cut rev limit.
HOWEVER you can also set the spark cut dwell to whatever manual setting you like if you have consistently gotten your shift time down to a specific level, such as user 493lszosix above. If you happen to shift more slowly when on this manual setting then there's certainly the risk of the "flaring" if you don't complete the shift quickly enough, especially if you're experimenting with the manual setting by trial and error.
I leave mine set to Auto and it works perfectly every time, but again I don't drag race so an extra couple milliseconds makes no difference to me
Pro
Joined: Dec 2015
Posts: 660
Likes: 181
From: Knoxville TN
WOTBOX offers an Auto Feature that cuts spark for as long as you have the clutch pedal down, so there is no risk of re-engaging the clutch after the power comes on, as long as you're in auto setting.
HOWEVER you can also set the spark cut dwell to whatever manual setting you like if you have consistently gotten your shift time down to a specific level, such as user 493lszosix above. If you happen to shift more slowly when on this manual setting then there's certainly the risk of the "flaring" if you don't complete the shift quickly enough, especially if you're experimenting with the manual setting by trial and error.
I leave mine set to Auto and it works perfectly every time, but again I don't drag race so an extra couple milliseconds makes no difference to me
HOWEVER you can also set the spark cut dwell to whatever manual setting you like if you have consistently gotten your shift time down to a specific level, such as user 493lszosix above. If you happen to shift more slowly when on this manual setting then there's certainly the risk of the "flaring" if you don't complete the shift quickly enough, especially if you're experimenting with the manual setting by trial and error.
I leave mine set to Auto and it works perfectly every time, but again I don't drag race so an extra couple milliseconds makes no difference to me
I’ve never tried the auto feature but I think I’ll try it sometime, I was never really sure what it did but the way you explained it makes sense, for some reason I thought or read that it was just an extremely long delay so never tried it, my 2012 camaro has the no lift shift feature from the factory also, it’s not adjustable but works just the same
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 315
From: USA
Thanks for the info. I didn't see it state that explicitly on their site as to what the "auto" does exactly. I assumed it just cut spark if switch depressed....same way it works on my Focus via Cobb Accessport custom code/feature
Drifting
Joined: Apr 2015
Posts: 1,893
Likes: 295
From: Buffalo NY
I’ve never tried the auto feature but I think I’ll try it sometime, I was never really sure what it did but the way you explained it makes sense, for some reason I thought or read that it was just an extremely long delay so never tried it, my 2012 camaro has the no lift shift feature from the factory also, it’s not adjustable but works just the same
http://www.npcompleteperformance.com/wotbox/userguide
Usage
To use the WOT Shift feature, keep your foot fully on the gas and shift quickly using the clutch. Keep the gas fully depressed through the shift. The WOT Box will detect the clutch switch signal and briefly cut the ignition and fuel to enable an effortless shift.To use the 2-Step feature, fully depress the clutch. Next, fully depress the gas. The engine will rev up and hold the RPM that you have set. The 2-step will not engage if you are not at wide open throttle, so you must fully press down the gas pedal. If you ease into it, it will not engage. This is to prevent the 2-step from engaging during normal driving. Release the clutch while leaving the gas fully depressed to launch the car.
Programming
The WOT Box version 2.1 and up comes preset for an automatic WOT Shift kill time. This means that the WOT Box will automatically adjust the kill time to your shift time, up to a maximum of 350 ms. If you would like manual control over the WOT Shift kill time, start the car and hold down the button on the module and wait for the LED to begin to blink. Using the chart below, find the number of blinks that corresponds to the kill time that you want to set. Setting 0 blinks will disable the WOT Shift feature and setting 1 blink will set the automatic kill time mode. When you have reached the number of blinks that match your desired setting, simply let go of the button. To confirm, the WOT Box will blink back out the setting you entered.The WOT Box comes preset for a 2-step RPM of 4000. To set the 2-Step RPM, repeat the same procedure described above, but keep the clutch down during the entire operation. This will signify to the WOT Box that you want to set the 2-step RPM and not the WOT Shift kill time. Use the second chart provided below to match up the desired RPM with the number of blinks. Setting 0 blinks will disable the 2-Step feature.
Last edited by nsogiba; Mar 14, 2019 at 07:42 AM.
