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Old 02-28-2010, 07:06 PM   #1
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What's the top end on a stock LS3 2010 Camaro

I thought I read in a car magazine the 2010 LS3 should do 150-155 mph on the top end. But then doesn't the ECM limit the top speed to around 140 mph? My gt500 mustang buddies are claiming 150 mph no sweat. I did 120 in the 1/4 mile yet kept my foot in it past the finish line. I know on the fwy 105 mph the tach is reading less than 3000 rpm in 6th gear. I'm not condoning breaking the law. Yet has anyone taken a stock LS3 on a road course? I know the 2010 Camaro needs better gearing out back for good 1/4 times.
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Old 02-28-2010, 07:11 PM   #2
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Quote:
Originally Posted by BoomBoomKid View Post
I thought I read in a car magazine the 2010 LS3 should do 150-155 mph on the top end. But then doesn't the ECM limit the top speed to around 140 mph?
The ECM limits the car to 155.
Without it...the car should easily be able to reach 175+.
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Old 02-28-2010, 07:13 PM   #3
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Quote:
Originally Posted by BoomBoomKid View Post
I thought I read in a car magazine the 2010 LS3 should do 150-155 mph on the top end. But then doesn't the ECM limit the top speed to around 140 mph? My gt500 mustang buddies are claiming 150 mph no sweat. I did 120 in the 1/4 mile yet kept my foot in it past the finish line. I know on the fwy 105 mph the tach is reading less than 3000 rpm in 6th gear. I'm not condoning breaking the law. Yet has anyone taken a stock LS3 on a road course? I know the 2010 Camaro needs better gearing out back for good 1/4 times.
dunno man.. the other day i got up to 140 no prob. and let out cause was coming up on a turn..
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Old 02-28-2010, 07:13 PM   #4
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The ECM limits the car to 155.
Without it...the car should easily be able to reach 175+.
Really, that's quite awesome for a $30K+ car. Do you know this for a fact?
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Old 02-28-2010, 07:14 PM   #5
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Top speed I have seen is 156mph--250kmh {LS3} and thats in 4th gear.
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Old 02-28-2010, 07:15 PM   #6
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AWESOME!!!
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Old 02-28-2010, 07:22 PM   #7
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Originally Posted by BoomBoomKid View Post
Really, that's quite awesome for a $30K+ car. Do you know this for a fact?
Not as a "fact"...because I don't think anyone's gone that fast before...it would require an abandoned, 2-mile long airstrip (or similar) to get up there....

But the LS3 brings the Corvette up to 190. So high 170s is not unreasonable to expect out of a not-as-sleek Camaro.
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Old 02-28-2010, 08:57 PM   #8
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There is a member here who shall remain nameless, unless he wants to speak up, with a supercharged LS3 that topped the 200 mark. His tune eliminated or stretched the ECM limiter to open in up. That is a bit fast for me, but he loved it.
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Old 02-28-2010, 10:57 PM   #9
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There is a member here who shall remain nameless, unless he wants to speak up, with a supercharged LS3 that topped the 200 mark. His tune eliminated or stretched the ECM limiter to open in up. That is a bit fast for me, but he loved it.
And he was a professional driver on a closed track from what I hear :p
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Old 03-01-2010, 12:45 AM   #10
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200....uh-oh.
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Old 03-01-2010, 01:36 AM   #11
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Joe, I swore someone from GM said they were able to get it in the 180's regularly and 189 was the top speed they got it up to....you remember this from INDY? I could be way off....but....man, I really think this is what was said...
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Old 03-01-2010, 03:47 PM   #12
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Joe, I swore someone from GM said they were able to get it in the 180's regularly and 189 was the top speed they got it up to....you remember this from INDY? I could be way off....but....man, I really think this is what was said...
I didn't think the coefficient of drag (cd) numbers for the 2010 is not that good. It's quite wide and I would think a lot of air gets under the car. The car definitely needs to be lowered for anything above 140 mph.

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Old 03-01-2010, 03:57 PM   #13
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I have an abandoned road that I've tested mine out on and got to 140mph easily. After acheiving that I let off, you could feel the car wanting to float. I've owned plenty sports cars and that 140 to 150 mark is something to hit, but if your car isn't the proper height you run the risk of loosing it because it just wont stay on the road with the slightest thing causing you to loose control. I plan on lowering my car and trying again. Everyone please be careful and not test your cars limits anywhere others could be hurt. I'll keep you posted
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Old 03-01-2010, 04:38 PM   #14
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yah 155 stock no problems cobalt ss also has same factory limit
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Old 03-01-2010, 05:16 PM   #15
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I would not want to be anywher near a Cobalt at 150+mph. AIRBORN!
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Old 03-01-2010, 05:55 PM   #16
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I have an abandoned road that I've tested mine out on and got to 140mph easily. After acheiving that I let off, you could feel the car wanting to float. I've owned plenty sports cars and that 140 to 150 mark is something to hit, but if your car isn't the proper height you run the risk of loosing it because it just wont stay on the road with the slightest thing causing you to loose control. I plan on lowering my car and trying again. Everyone please be careful and not test your cars limits anywhere others could be hurt. I'll keep you posted
Good input. On another page on this forum the factory states the top speed to be 250 kmph which comes out to 155 mph.

So you're saying the 2010 Camaro is not aero dynamically stable at speeds above 140 mph in stock form. Something to remember.
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Old 03-01-2010, 06:50 PM   #17
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SLP must have a kit to lower the car by 1" becouse they lowered mine. Contact them, I'm srue they can sell you the parts and tell you how to do it.
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Old 03-01-2010, 06:56 PM   #18
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Quote:
Originally Posted by TAG UR IT View Post
Joe, I swore someone from GM said they were able to get it in the 180's regularly and 189 was the top speed they got it up to....you remember this from INDY? I could be way off....but....man, I really think this is what was said...
The 180s claim I do vaguely remember from Indy...but not 189 -- that's Corvette -- that's not possible.
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Old 03-01-2010, 06:58 PM   #19
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Quote:
Originally Posted by BoomBoomKid View Post
So you're saying the 2010 Camaro is not aero dynamically stable at speeds above 140 mph in stock form. Something to remember.
Yes it is. Though, VERY few cars are stable at those speeds...because it has to be purposely-designed to be stable at such high speed, like the Vette.
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Old 03-01-2010, 09:01 PM   #20
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I think the vet did 193 while GM was testing it in Germany on the autobahn. I saw something on Speed a while back but I may be off a bit on the speed. I'm fairly certain it was over 190.
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Old 03-03-2010, 02:57 PM   #21
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153 stock and still felt stable
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Old 03-07-2010, 09:54 PM   #22
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Wow so the SS only goes to 155?... my V6 LT2/RS got up to 153 on a straightaway? I guess that's what you get for having a governor on the car
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Old 03-07-2010, 10:01 PM   #23
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Mine did 155mph on the dyno in 4th gear, no air got under it to destabilize it.

Need a 2 mile drag strip somewhere local to open her up safely, that or Death Valley....

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Old 03-07-2010, 10:06 PM   #24
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good one chris
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Old 03-07-2010, 10:16 PM   #25
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in proper environments we know it will go at least 155 bone stock! however, thats as fast as it can go bone stock because of the speed limiter due to the tires!

in reality, the camaro isnt made and designed to go as fast as the corvette. it may have the same engine, but the camaro is a muscle car. muscle cars were never high speed cars. they are designed for straight shot, balls to the wall 0-quarter mile!



















and to look gooooooooooood!
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