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Speed governor?

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Old 04-18-2008, 11:32 AM
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Default Speed governor?

Do the LS4's have a speed governor electronically programed into the ECM?
Can it be reprogrammed, or deleted?
Old 04-18-2008, 11:43 AM
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Yes it can; my governor was 161mph from factory. And you can disable it using HP Tuner.
Old 04-18-2008, 11:45 AM
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Are the Monte Carlo, Impala and Grandprix different?
Old 04-18-2008, 01:05 PM
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Some (Montes?) reported here that theirs was set at 125. I've gone just over 140 (maybe 141) in my Imp before I had to let off due to nighttime traffic. C&D reported 154mph during their first test of the Impala.
Old 04-18-2008, 01:20 PM
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125
Just want too know what to expect when my conversion is done. 160+ sounds a little better than 125
But I guess the reprogramming should help in some other arias too?
Old 04-18-2008, 02:46 PM
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According to HPtuner's mine was set at 140mph.
Old 04-18-2008, 02:47 PM
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I have gone 140+ in my monte.
Old 04-18-2008, 06:49 PM
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I have went 130 and ran into traffic
Old 04-18-2008, 06:52 PM
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stock GM governor programming on the Monte SS LS4 is at 142 mph...

I have eliminated mine....
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Old 04-18-2008, 06:55 PM
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You lucky guy!!
Old 04-18-2008, 07:23 PM
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Originally Posted by LS4 swap
125
Just want too know what to expect when my conversion is done. 160+ sounds a little better than 125
But I guess the reprogramming should help in some other arias too?
You going to try to run the Fiero over 160? Better put in a good roll cage

Yeah, tuning will improve the drivability - especially if you are doing a few mods, and give you a few extra HP.

I've set the governor on the GXP to 318 MPH, the max value.

Old 04-18-2008, 07:26 PM
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How did you eliminate yours? Diablo can't do it.
Old 04-18-2008, 08:18 PM
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I've set the governor on the GXP to 318 MPH, the max value.
X2
Old 04-18-2008, 08:31 PM
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Originally Posted by jabronie78
How did you eliminate yours? Diablo can't do it.
diablo predator sets it to 155mph... our tires are only rated for 168mph anyway...

BUT... their dealer software (CMR) allows you to do anything and everything... just like HP Tuners, and more!! ....
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Last edited by 06MonteSS; 04-19-2008 at 08:45 AM.
Old 04-18-2008, 11:55 PM
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Originally Posted by TiredGXP
You going to try to run the Fiero over 160? Better put in a good roll cage

Yeah, tuning will improve the drivability - especially if you are doing a few mods, and give you a few extra HP.

I've set the governor on the GXP to 318 MPH, the max value.

HaHa, Fiero's don't roll over. They burn down

I would not go over 160 unless my life depended on it for some reason. For now my current engine swap is set 112 That REALY SUX because from 55 I can hit the speed governor before I pass two cars at the same time, or a single semi. On some of the roads around here the traffic on the two lane roads is kind of sparse but consistent. So I mite get a chance to pass once every 10 min. I drive 50 min each direction. If I can go over 112 on a pass I could get around people quicker and not panic on coming traffic.
Old 04-19-2008, 12:55 AM
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Originally Posted by LS4 swap
HaHa, Fiero's don't roll over. They burn down

I would not go over 160 unless my life depended on it for some reason. For now my current engine swap is set 112 That REALY SUX because from 55 I can hit the speed governor before I pass two cars at the same time, or a single semi. On some of the roads around here the traffic on the two lane roads is kind of sparse but consistent. So I mite get a chance to pass once every 10 min. I drive 50 min each direction. If I can go over 112 on a pass I could get around people quicker and not panic on coming traffic.
Sounds like a 2 lane autobahn in your area

Speed limiter change is really simple using HPT. My '05 GXP came stock with a 225 kmh (140 mph) limiter. Haven't taken it over 160 kmh because I'd like to keep my license - we have radar everywhere these days.



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