camaro ls speed limited

[Rangore]

Originally Posted by nyrfan

I know its not engine based but I didn't realize the 19's came with pzero's. My bad.


Sent from my 2LT/RS using Tapatalk

It's all good.

[AdamEL]

Hey, that's a cool piece of knowledge, Angrybird12! Thanks! Good thing I sprung for the RS Package!

[shrinkdoc]

Originally Posted by suplex

What is the limit on a 1LT with No RS package? I won't ever challenge it, so I figured I would ask in here instead.

155 if yours came from the factory with 19" pirelli P zeros. 118 if it came with the 18" wheels.

[trailerrick]

Originally Posted by Angrybird 12

My speed limiter is set to 85........ That's when my wife starts yelling for me to slow down!!!!

[sycraft]

Originally Posted by =Stephens=

I put 20s on mine went to my dealer and asked them to change it, and they wouldn't. They stated if I put my 18s back on and get into an accident going over 118, they would be liable so they wouldn't do it. They only way you can do it, is you get a custom tune and remove the limiter, which will void your warranty. Why do you need to go that fast? If you get caught by the police you will be get a serious ticket or go to jail. Not worth it IMO.

Partially incorrect, GM does have a BCM Calibration for the 20" wheels, it costs about 75 bucks to have done. They have to call and get a ID for the BCM. It recalibrates the speedo and braking system to accept the slight change in tire diameter. Not sure if it lifts limiter though. I did not go this route because it was a small change. I did have a tune done, required after Supercharger, I can say that I KNOW I do not have my limiter on now..

[ZED SLED]

Not all Z rated tires are alike. Used to be a Z rated tire was 149+ mph. That changed when cars started actually going that fast again. Z rated tires are rated in 2 categories. W and Y. This is on the load rating on the sidewall. W=168 mph and Y=186. The 20" Pirelli PZeros that come on the these cars are 103Y ft and 106Y rr, meaning they are rated to 186+mph. The 155 limit GM imposes is likely a 15% or so safety margin. When replacing these tires you could just as easily use a W rated tire and a lot people do. Just don't tune out the limiter and go to Bonneville.

From tirerack.com

When Z-speed rated tires were first introduced, they were thought to reflect the highest tire speed rating that would ever be required, in excess of 240 km/h or 149 mph. While Z-speed rated tires are capable of speeds in excess of 149 mph, how far above 149 mph was not identified. That ultimately caused the automotive industry to add W- and Y-speed ratings to identify the tires that meet the needs of new vehicles that have extremely high top-speed capabilities.
W 168 mph 270 km/h Exotic Sports Cars
Y 186 mph 300 km/h Exotic Sports Cars

While a Z-speed rating still often appears in the tire size designation of these tires, such as 225/50ZR16 91W, the Z in the size signifies a maximum speed capability in excess of 149 mph, 240 km/h; the W in the service description indicates the tire's 168 mph, 270 km/h maximum speed.
225/50ZR16 in excess of 149 mph, 240 km/h
205/45ZR17 88W 168 mph, 270 km/h
285/35ZR19 99Y 186 mph, 300 km/h

Most recently, when the Y-speed rating indicated in a service description is enclosed in parentheses, such as 285/35ZR19 (99Y), the top speed of the tire has been tested in excess of 186 mph, 300 km/h indicated by the service description as shown below:
285/35ZR19 99Y 186 mph, 300 km/h
285/35ZR19 (99Y) in excess of 186 mph, 300 km/h

As vehicles have increased their top speeds into Autobahn-only ranges, the tire speed ratings have evolved to better identify the tires capability, allowing drivers to match the speed of their tires with the top speed of their vehicle.

[Rangore]

Originally Posted by mclark10

Not all Z rated tires are alike. Used to be a Z rated tire was 149+ mph. That changed when cars started actually going that fast again. Z rated tires are rated in 2 categories. W and Y. This is on the load rating on the sidewall. W=168 mph and Y=186. The 20" Pirelli PZeros that come on the these cars are 103Y ft and 106Y rr, meaning they are rated to 186+mph. The 155 limit GM imposes is likely a 15% or so safety margin. When replacing these tires you could just as easily use a W rated tire and a lot people do. Just don't tune out the limiter and go to Bonneville.

From tirerack.com

Great info!

Tires should be something you never cheap out on. It's crucial to have the right tires...for top speed and proper accelleration.

[ihaveacamaro]

Originally Posted by hstone11

i have the 20'' ss rims with pirelli tires on a ls with no package, so how do I get it tuned so i can go past that limiter
thanks

If you tune, you lose your warranty btw. Not saying you shouldn't tune, rather saying that you should tune knowing what the pros and cons are.

[JWoj3540]

all production vehicles in the United States are speed limited

[Butcher]

Originally Posted by JWoj3540

all production vehicles in the United States are speed limited

Since when?

[Butcher]

Originally Posted by Mr. iNCREDIBLE

http://www.camaro5.com/forums/showthread.php?t=246426


it's in the advert brochure from the dealers guys

v6 with 18" = 119, with 20" Pzeros = 155
v8 = 155
ZL1 = 180 (convertible = 155)

If that's true, then I would think that the 1LE isn't limited at all. The tires are safe at 180 mph, and the car can't get to 180 mph, so no "limit" would be necessary. We'll find out soon enough.

[Angrybird 12]

Originally Posted by JWoj3540

all production vehicles in the United States are speed limited

Are you talking electronically, aero, mechanically, or just referring all states have speed limits on public roads?

[thepitchpatch]

I don't know what the limit is on my 2011 2LT/RS but I know for a fact that it is over 140 mph :-)!

[90503]

Originally Posted by JWoj3540

all production vehicles in the United States are speed limited

I can believe this...my 2000 GMC truck won't go over 95....