Speed restrictions/speed limit

Drnick · 01-31-2022, 05:04 PM

22’ ZL1 manual,convertible; is there a speed limit
Or restriction on this vehicle?

Revalot · 01-31-2022, 05:12 PM

Yes ! I believe it's in the 155 range. But I'm positive HP tuners could turn that off, but is it worth voiding your warranty ?

mikec3104 · 01-31-2022, 05:16 PM

Limited at 180, but hard to get above 175 because of air drag.

Drnick · 01-31-2022, 06:07 PM

Ok ,155 or 180? Im assuming it’s limited through the Ecu, or the flapping
Of the convertible top? PS are there limits to the coupe too?

arpad_m · 01-31-2022, 06:19 PM

Quote:

Originally Posted by mikec3104

Limited at 180, but hard to get above 175 because of air drag.

OP's question is about a convertible.

Quote:

Originally Posted by Drnick

Ok ,155 or 180? Im assuming it’s limited through the Ecu, or the flapping
Of the convertible top? PS are there limits to the coupe too?

The speed limit set in the tune is

- 155 mph for the convertibles (although I've only personally seen the SS limit, I believe the same applies to the ZL1 convertible);
- 180 mph for the SS coupe; and
- 206 mph for the ZL1 coupe.

With the exception of the vert, these speeds are unattainable in practice anyway.

HoodCheck · 01-31-2022, 06:47 PM

Quote:

Originally Posted by arpad_m

OP's question is about a convertible.

The speed limit set in the tune is

- 155 mph for the convertibles (although I've only personally seen the SS limit, I believe the same applies to the ZL1 convertible);
- 180 mph for the SS coupe; and
- 206 mph for the ZL1 coupe.

With the exception of the vert, these speeds are unattainable in practice anyway.

Unattainable to who???? lol, I had to make the joke....I havent been over 105 in many many years lol

Drnick · 01-31-2022, 08:27 PM

Hmm, 206 for the ZL1 coupe, and only 155 for the ZL1 vert, wow
That’s a hell of a restriction! I guess that applies to the top down too!

HDRDTD · 01-31-2022, 09:41 PM

The 5th Gen ZL1 Vert was restricted to 155mph due to the top.

2SS Capt · 01-31-2022, 09:50 PM

I believe all the Verts are limited to 155, not only for the top but due to lack of roll over protection (no roof structure)...

Jofu · 02-01-2022, 12:56 AM

Quote:

Originally Posted by HoodCheck

I havent been over 105 in many many years lol

Now that's just criminal

Geoff

Gunkk · 02-01-2022, 06:03 AM

Quote:

Originally Posted by Drnick

22’ ZL1 manual,convertible; is there a speed limit
Or restriction on this vehicle?

The 6th gen ZL1 Convertible is ECU limited to 155 mph. When you hit the limit, you'll get a throttle cut and a dash message.

If you tune the car you can adjust/remove the limit. Although the car is quite stable at high speed with the top down, I'm not so sure I would tempt fate that way.

hawk02 · 02-01-2022, 07:24 AM

When I owned a 5th gen ZL1 convertible, the rumor being thrown around for the 155 mph speed limit was because GM never tested the canvas top above that speed. Guess they thought convertible owners would never want to go faster than that.

Flexhorn · 02-01-2022, 10:51 AM

I’ve gotten my ZL1 up to 174

KamZL1 · 02-01-2022, 11:19 AM

Can confirm coupe is not limited at 155 lol

01-31-2022, 05:04 PM	#1
Drnick Drives: 22’ ZL1 Join Date: Dec 2021 Location: Florida Posts: 381 View My Garage	Speed restrictions/speed limit 22’ ZL1 manual,convertible; is there a speed limit Or restriction on this vehicle?

01-31-2022, 09:50 PM	#9
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,007	I believe all the Verts are limited to 155, not only for the top but due to lack of roll over protection (no roof structure)... __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting *Added after delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires *Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...*

02-01-2022, 07:24 AM	#12
hawk02 Coupe Newbie Drives: 2017 ZL1, 2021 Corvette Convertible Join Date: Jul 2011 Location: Columbus, Ohio Posts: 3,279 View My Garage	When I owned a 5th gen ZL1 convertible, the rumor being thrown around for the 155 mph speed limit was because GM never tested the canvas top above that speed. Guess they thought convertible owners would never want to go faster than that. __________________

01-31-2022, 05:12 PM	#2
Revalot Drives: ZL1/1LE parts added Join Date: May 2018 Location: Somewhere around Texas pines tress and smooth asphalt Posts: 609	Yes ! I believe it's in the 155 range. But I'm positive HP tuners could turn that off, but is it worth voiding your warranty ?

01-31-2022, 05:16 PM	#3
mikec3104 Drives: 2020 LT1 Join Date: Feb 2015 Location: MD Posts: 93	Limited at 180, but hard to get above 175 because of air drag.

01-31-2022, 06:07 PM	#4
Drnick Drives: 22’ ZL1 Join Date: Dec 2021 Location: Florida Posts: 381 View My Garage	Ok ,155 or 180? Im assuming it’s limited through the Ecu, or the flapping Of the convertible top? PS are there limits to the coupe too?

01-31-2022, 08:27 PM	#7
Drnick Drives: 22’ ZL1 Join Date: Dec 2021 Location: Florida Posts: 381 View My Garage	Hmm, 206 for the ZL1 coupe, and only 155 for the ZL1 vert, wow That’s a hell of a restriction! I guess that applies to the top down too!

01-31-2022, 09:41 PM	#8
HDRDTD Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011 Location: Trenton, Michigan Posts: 7,047	The 5th Gen ZL1 Vert was restricted to 155mph due to the top.

02-01-2022, 10:51 AM	#13
Flexhorn Drives: A10 ZL1 Join Date: Mar 2018 Location: Longview, Texas Posts: 142	I’ve gotten my ZL1 up to 174

02-01-2022, 11:19 AM	#14
KamZL1 Drives: ZL1 Join Date: Oct 2021 Location: Houston Posts: 139	Can confirm coupe is not limited at 155 lol

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