2010 Grand Sport: Does it have a Governor?
10-25-2014, 02:53 PM
#1
Racer
Thread Starter
2010 Grand Sport: Does it have a Governor?
Does my 2010 Grand Sport Coupe (manual trans with dry-sump engine) have a speed limiting governor?
Last edited by jmarch313; 10-25-2014 at 02:59 PM.
10-25-2014, 03:00 PM
#2
Retired & lovin' it!
10-25-2014, 03:42 PM
#3
Tech Contributor
From the 2013 owners manual (page 5-12)
Notice: Fuel shuts off at about
6500 rpm for the base model,
7000 rpm for the Z06 and 427
Convertible models, and 6600
rpm for the ZR1 model.
6500 rpm for the base model,
7000 rpm for the Z06 and 427
Convertible models, and 6600
rpm for the ZR1 model.
Last edited by 96GS#007; 10-27-2014 at 03:52 PM. Reason: Updated for correct rpm
10-27-2014, 12:20 PM
#6
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10-27-2014, 12:46 PM
#7
Safety Car
Wind resistance is the only limiting factor for top speed on any C6..... Meaning, no governor, just the rev limiter as you go up thru the gears to get there.
10-27-2014, 01:04 PM
#8
Le Mans Master
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St. Jude Donor '12
The post up top is correct where he says it's the rev limiter. That is correct. The Z06/LS7 limits at 7k RPM. The red line in LS3 is 6.5k RPM if memory serves. The program acts as a governor but is a rev limiter to protect the engine. LS9 same.
And the only C6 generation Vette that does 205 is ZR1. Z06 was 198 if memory serves and is drag limited.
And the only C6 generation Vette that does 205 is ZR1. Z06 was 198 if memory serves and is drag limited.
10-27-2014, 02:36 PM
#9
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10-27-2014, 02:57 PM
#10
Safety Car
From what I have gathered in the past here, resistance limits a stock C6 but if more power is added, the speed limiter would have to be bumped.
10-27-2014, 04:20 PM
#11
Burning Brakes
No... You guys are making this way more complicated than it is. C6's have no sort of "governor" or "speed limiter".
The cars top speed is only limited due to horsepower or lack of. Adding modifications/horsepower will increase top speed but be aware that nearing 200mph, it takes A LOT of horsepower to keep going because the wind resistance at that speed is great.
10-27-2014, 05:19 PM
#12
Le Mans Master
The post up top is correct where he says it's the rev limiter. That is correct. The Z06/LS7 limits at 7k RPM. The red line in LS3 is 6.5k RPM if memory serves. The program acts as a governor but is a rev limiter to protect the engine. LS9 same.
And the only C6 generation Vette that does 205 is ZR1. Z06 was 198 if memory serves and is drag limited.
And the only C6 generation Vette that does 205 is ZR1. Z06 was 198 if memory serves and is drag limited.
10-27-2014, 11:48 PM
#13
Le Mans Master
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St. Jude Donor '12
No... You guys are making this way more complicated than it is. C6's have no sort of "governor" or "speed limiter".
The cars top speed is only limited due to horsepower or lack of. Adding modifications/horsepower will increase top speed but be aware that nearing 200mph, it takes A LOT of horsepower to keep going because the wind resistance at that speed is great.
The cars top speed is only limited due to horsepower or lack of. Adding modifications/horsepower will increase top speed but be aware that nearing 200mph, it takes A LOT of horsepower to keep going because the wind resistance at that speed is great.
'Horsepower to get ya there and "torque" to help keep ya there'. The LS7 has lots of that. It needs aero goodies added such as the Z07 package which is very similar to ZR1's factory carbon fiber aero kit that new owners installed or the dealer new owner wanted. And remember that when a lot of down force is added, it takes a lil extra power to continue acceleration. That's where ZR's supercharger shows it's advantage.
The C6 ZR1 is capable (as claimed by GM) to top out at 204 mph, and that's with it's aero package attached. (I had agreed and stated 205 up top-wondering id someone would catch me (j/k).
Last edited by tim414; 10-28-2014 at 10:03 PM.
10-28-2014, 12:10 AM
#14
LS2 is factory limited to 186mph, and in all the above cases, system will start to dis-able via spark if you try to push through, same as trying to push through the rev limiter as well.
Last edited by Dano523; 10-28-2014 at 12:12 AM.
10-28-2014, 12:13 AM
#15
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10-28-2014, 02:37 PM
#16
Safety Car
Nope, there is no "governor" or speed limiter in the C6 "tune" or the computer programming. This is another thread full of misinformation and speculation......
Not that it matters, because 99.9999999999999 % will never try to find out anyway ...
Not that it matters, because 99.9999999999999 % will never try to find out anyway ...
10-28-2014, 04:07 PM
#18
Team Owner
I saw a thread here a while ago that showed the max speed numbers in the tune tables, but it also said that there are many parameters in the computer tables that are not actually active even though they appear there. I think I remember one poster who replaced the 186 number with a much lower one and then went out to see if the car would exceed it. The car went through the new number with no drama at all.
Last edited by cclive; 10-28-2014 at 04:11 PM.
10-28-2014, 04:42 PM
#19
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I saw a thread here a while ago that showed the max speed numbers in the tune tables, but it also said that there are many parameters in the computer tables that are not actually active even though they appear there. I think I remember one poster who replaced the 186 number with a much lower one and then went out to see if the car would exceed it. The car went through the new number with no drama at all.
But...I over this topic!
10-28-2014, 05:33 PM
#20
Melting Slicks
Like I said before..........Non Z cars are speed limited to 194..........Z cars at 205. Here's a screen capture from my cars VCM.......2013 GS A6 car.
BTW! The Speed Limit ETC Fail at 318mph means the Electronic Traction Control will fail at 318mph............you guys owe me a beer!
BTW! The Speed Limit ETC Fail at 318mph means the Electronic Traction Control will fail at 318mph............you guys owe me a beer!
Last edited by Speedforhire; 10-28-2014 at 05:36 PM.