[BlaqWhole]

The best thing to do is make sure it isn't a Tesla Plaid. Because ain't nobody beating them things at any starting speed.

[Joshinator99]

Originally Posted by Camaro1973

This all depends on your power level.

I would never be able to hook at 30. I really can’t be going less then 60 on the street, if it’s really warm I can do 50, but nothing below this. Sometimes I need to skip 3rd completely.

Track is different.

Agreed. No big power car will voluntarily do a 30 roll race on the street, there’s just no traction. Even 40 is considered very low to start.

[JSH]

Originally Posted by clg82

this will put you in the Lowest possible gear,

This is the key to the hit - you have to be in the lowest possible gear or else mine will downshift one gear when I shift to Drive and roast the tires. 60 mph at ~5000 rpm should do it.

Of course, since, depending on your car's power, a 60-130 only takes 5-7 seconds, you can chose to make the hit in manual using HUD and make the 3-4 shift manually when you see the red warning lights, and not have to deal with kicking it into Drive.

[TXCSSU]

With the 10-speed, wouldn't it mostly depend on having it in the right gear? You don't want it in a gear so high that you're shifting shortly after, but you also don't want to be on the low end of the rev range, right? I say go drive at each of the speeds you asked about, and see where the transmission has the RPM at each speed. Look for the sweet spot based on peak TQ and that'll let you know where to start (pun intended).

[Ls_Camaro]

Originally Posted by Idaho2018GTPremium

Weight is less of a factor at higher speeds, where drag becomes the dominant force, which hp is needed to overcome.

And also, heavy cars may not hook up as well if the weight distribution, such as in a 20+ GT500 or Hellcat Challenger, isn't very good. Both of those cars are heavy (GT500 is 4,160 lbs and the Hellcat Challenger is 4,500+ lbs) and have poor weight distribution. The GT500 is 56/44 front/rear, while the Hellcat Challenger is 57/43. More weight on the front means less weight at the rear to provide traction force to get the car rolling. For comparison, the ZL1 is about 54/46 front/rear, which is one reason why it tends to match the others to 60 mph despite being less powerful (and it's lighter).

This is why a C7 Z06 (50/50 weight distribution) can do 0-60 in 3.0 sec. and the GT500, with a similar power to weight, is in the mid 3s (3.4-3.6).

But at high speeds, the extra hp of the GT500 will pull away from the 650 hp Z06.

Good point thanks.

[mlee]

Originally Posted by Mark R

And don't forget to put it into performance driving mode with a quick stab of the gas pedal, and letting it run in auto, not manual.

^^^THIS is the safest and most reliable way to get a clean run

Originally Posted by clg82

Don't do this, if you stab the throttle to put it in "performance shift mode" it won't put you in the "lowest possible gear". Put the shifter in manual and hold the downshift paddle, this will put you in the Lowest possible gear, get the the MPH you both are agreeing too then when the "hit" comes mash the throttle and throw it back into drive for the transmission to do the rest.....it takes some practice but if you do it the way stated above, it may put you in 4th maybe even 5th gear which isn't ideal RPMs for roll racing.

Being in the lowest possible gear, then relying on a quickly timed manual shift, then shifting back to auto is a recipe for a screwed up run 90% of the time.

I can't tell you how many times I practiced this because it totally makes sense, but reality is that 1st shift comes too quick and then getting it back in auto is a hit and miss.

Originally Posted by lt4camaro

Agree 100 %, put the car in manual mode and pick the gear like 2nd at a steady 50mph, hold that until you floor it to go and at the same time push the shift over to auto mode.

This works better.

Originally Posted by BlaqWhole

The best thing to do is make sure it isn't a Tesla Plaid. Because ain't nobody beating them things at any starting speed.

This works Best!!

Originally Posted by TXCSSU

With the 10-speed, wouldn't it mostly depend on having it in the right gear? You don't want it in a gear so high that you're shifting shortly after, but you also don't want to be on the low end of the rev range, right? I say go drive at each of the speeds you asked about, and see where the transmission has the RPM at each speed. Look for the sweet spot based on peak TQ and that'll let you know where to start (pun intended).

Exactly... the other piece of this is if you hold the paddle to get it into the lowest gear your foot has to be 100% off the gas. Once you are back on the gas it's way too quick of a 1st shift taking into account finger speed plus a slight lag in the system. Hitting redline kills the run.

[JSH]

Originally Posted by mlee

^^^THIS is the safest and most reliable way to get a clean run.

Again, all of this depends on the car. In my case, a 60-130 takes around 6 seconds. All I have to do is get to 60 mph at around 5000 rpm in Manual, make the hit, leave it in manual and make the one shift when I see red lights on my HUD. Any shift to Auto is problematic.

Of course the 87a TCM can be tuned to make these shifts while in Manual mode.

[mlee]

Originally Posted by JSH

Again, all of this depends on the car. In my case, a 60-130 takes around 6 seconds. All I have to do is get to 60 mph at around 5000 rpm in Manual, make the hit, leave it in manual and make the one shift when I see red lights on my HUD. Any shift to Auto is problematic.

Of course the 87a TCM can be tuned to make these shifts while in Manual mode.

I thought we were talking about ZL1's

I also agree 100% with your method for manual, and I mentioned as well that shifting to auto is hit and miss.

But bliping the throttle gets you in that 4,500 range and leave it in auto is pretty fool proof. Advantage to doing it in manual the RPMs will hold as long as you want.

[JSH]

Originally Posted by mlee

I thought we were talking about ZL1's

We are. I referred to whether it was bone stock or any one of a gazillion different builds.

[L99BEN]

Originally Posted by Ls_Camaro

What's a good roll speed for the A10 when roll racing provided that you have sticky tire and can hook well. 30? 40? 50? 60 mph rolls? Duno if any of you have played around with different roll speeds and felt the ZL1s' strong and weak mph roll if that makes sense.

Stock ZL1 a10 should do well from a 50-60 roll; just make sure you're starting in the proper gear and rpm

Its the slower cars that typically go from a lower speed roll or dig on the street

You can also do your own testing with a Dragy device to see what works best for practice
https://www.google.com/search?q=Dragy+gps

[Corey7519]

Some people tend to shut down when youre about to drive around them and then say they won but in reality they wouldnt of. Make sure you agree on top speed shut down.

[KILLA BEE]

Originally Posted by clg82

Don't do this, if you stab the throttle to put it in "performance shift mode" it won't put you in the "lowest possible gear". Put the shifter in manual and hold the downshift paddle, this will put you in the Lowest possible gear, get the the MPH you both are agreeing too then when the "hit" comes mash the throttle and throw it back into drive for the transmission to do the rest.....it takes some practice but if you do it the way stated above, it may put you in 4th maybe even 5th gear which isn't ideal RPMs for roll racing.

Thank god someone this!!

[ZX-10R]

Just put the car in track mode, it works perfectly fine