[Blackdevil77]

Originally Posted by cad78

My 2022 ZL1 went 11.25@125 with stock tires. DA was 1500 at 70F in Orlando

60' was 1.79. Drag radials should get that down .2 which would net 10.9x

I didn't use launch control, just foot braked it. Only cleaned the tires off for 2-3 seconds

Theoretically yes, but you will likely not see that much improvement with drag radials on a stock TCM tune. The torque management will limit throttle position in first gear, I haven't seen much better 60' than that on a stock car, with drag radials for that reason. Get rid of that torque management, and it's a completely different story.

[wnta1ss]

Originally Posted by Blackdevil77

Theoretically yes, but you will likely not see that much improvement with drag radials on a stock TCM tune. The torque management will limit throttle position in first gear, I haven't seen much better 60' than that on a stock car, with drag radials for that reason. Get rid of that torque management, and it's a completely different story.

Exactly, DRs don't help a stock ZL1 to the expected level because the stock computer limits things quite noticeably. We've been seeing this for years, where stock trans tune ZL1s don't run better than 1.6 short times on DRs, despite all this engine torque and horsepower.

Very enlightening to watch jorgelovesspeed video, where he shows stock trans tune vs aftermarket trans tune. ZL1 has a full dragpack, passenger seat pulled out, big gulp and flex fuel ECM tune with E55. With a stock trans tune it goes 1.63 short times at best, then with an aftermarket trans tune it goes a 1.50 short time, same engine hp and weight, he just fixed the computer. Quarter mile ends up almost 3 tenths quicker with just the trans tune being done, same day on the same track.

[JSH]

Originally Posted by cad78

My 2022 ZL1 went 11.25@125 with stock tires. DA was 1500 at 70F in Orlando

60' was 1.79. Drag radials should get that down .2 which would net 10.9x

I didn't use launch control, just foot braked it. Only cleaned the tires off for 2-3 seconds

I've seen closer to 1:1 between 60 ft. improvement and ET improvement. Maybe a little better than that but not by much.

[cad78]

Originally Posted by JSH

I've seen closer to 1:1 between 60 ft. improvement and ET improvement. Maybe a little better than that but not by much.

Maybe on this platform, but i have over 1000 passes in the last 28 years. Its always been 1:1.5 for me.

[JBones81]

Gas makes a difference too. If you're on AZ/NV/CA crap 91 you're not making as much power as east coast 93

[SATINSTEEL1LE]

Originally Posted by JBones81

Gas makes a difference too. If you're on AZ/NV/CA crap 91 you're not making as much power as east coast 93

I was a hater of the e30 guys but im going to try it before I get all my parts and tune. Im going to run 13 gallons of 93 and top off the final 6 with E85. See how that does. It should get me to that e30 range and make a bit more HP in open loop where the car is running rich as shit stock.

[JBones81]

Originally Posted by SATINSTEEL1LE

I was a hater of the e30 guys but im going to try it before I get all my parts and tune. Im going to run 13 gallons of 93 and top off the final 6 with E85. See how that does. It should get me to that e30 range and make a bit more HP in open loop where the car is running rich as shit stock.

Yea, I can't say for the zl1s yet, but switching to e85 in the RS3 was night and day. The only thing that sucks is I went from about 20mpg down to 12-13.

[Indasixes]

First pass of the night at Bradenton. Showroom stock with stock tires DA was 2600ft

[Blackdevil77]

So odd, I would of thought the mph would be higher for that time and 60’

[SATINSTEEL1LE]

Originally Posted by Blackdevil77

So odd, I would of thought the mph would be higher for that time and 60’

I did almost the exact same time and mph at that same track with my showroom stock ZL1 about two months ago in similar DA. This is all they have from the factory unfortunately.

And for the a10 at least, in order to go a lot faster or make a lot more power you need a TCM tune as well as an ECM tune. This car is so smart and has so many protections in place to stop it from making more power and going faster, its unreal.

No matter what you do to a stock tune car, its going to keep itself within its thresholds and hold you in this same bracket.

There is some trickery with cooler air and E30 that can be done to lean out the car during open loop to go a tad bit faster, but what you see is basically it.

Now once you get a tune and TCM tune and run some headers and e60 or e85, you can easily run 9's on a tire. Jorge proved that in his youtube videos.

[Blackdevil77]

Originally Posted by SATINSTEEL1LE

I did almost the exact same time and mph at that same track with my showroom stock ZL1 about two months ago in similar DA. This is all they have from the factory unfortunately.

And for the a10 at least, in order to go a lot faster or make a lot more power you need a TCM tune as well as an ECM tune. This car is so smart and has so many protections in place to stop it from making more power and going faster, its unreal.

No matter what you do to a stock tune car, its going to keep itself within its thresholds and hold you in this same bracket.

There is some trickery with cooler air and E30 that can be done to lean out the car during open loop to go a tad bit faster, but what you see is basically it.

Now once you get a tune and TCM tune and run some headers and e60 or e85, you can easily run 9's on a tire. Jorge proved that in his youtube videos.

Yeah I see that. But still, 11.2X. with that 60 foot, I would of thought the mph would have needed to be higher to pull that off. The throttle must of started closing back up at some point for the reasons you stated.

I guess Chevy saw how the Hellcats were ripping apart their driveshafts with drag radials at the track and they didn’t want the warranty claims. I plan on a ported blower and ECM/TCM tune to unleash the car. I just have to get past 1100 status.

[SATINSTEEL1LE]

Originally Posted by Blackdevil77

Yeah I see that. But still, 11.2X. with that 60 foot, I would of thought the mph would have needed to be higher to pull that off. The throttle must of started closing back up at some point for the reasons you stated.

I guess Chevy saw how the Hellcats were ripping apart their driveshafts with drag radials at the track and they didn’t want the warranty claims. I plan on a ported blower and ECM/TCM tune to unleash the car. I just have to get past 1100 status.

Yeah my car is going under the knife for CAI, headers, tune/trans tune and lower pulley. I already have DRs ready as you can see in my video. So Im ready to be rid of the factory torque management. No matter what you do with the cars, no tune means no better ET. They are so good at limiting the car to that window of power that GM has set out. You have to hand it to GM calibrators, they really knew what they were doing to make a safe and consistent package. Keep in mind that 11.2 range we all seem to run is basically in any air temp and any DA. These cars are dead consistent from the factory if you can stick from a dig.

[Indasixes]

Originally Posted by SATINSTEEL1LE

Yeah my car is going under the knife for CAI, headers, tune/trans tune and lower pulley. I already have DRs ready as you can see in my video. So Im ready to be rid of the factory torque management. No matter what you do with the cars, no tune means no better ET. They are so good at limiting the car to that window of power that GM has set out. You have to hand it to GM calibrators, they really knew what they were doing to make a safe and consistent package. Keep in mind that 11.2 range we all seem to run is basically in any air temp and any DA. These cars are dead consistent from the factory if you can stick from a dig.

Who is doing all this work for you???? Looking for options for our car.

[JSH]

Originally Posted by BIGMAC11

Camaro guys- no flames please for this newbie to the Camaro Forum. I know this has been discussed countless times here but what is a realistic quarter mile ET and Speed for a stock ZL-1 with only drag radials? There are wildly different claims on the net.

BIGMAC

Car and Driver says 11.5 and my guess is they tested in favorable atmospheric conditions