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Old 07-01-2009, 11:18 PM   #26
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Mine Ive had 2 weeks about 1000 miles on her. Alot of driving. Havent timed my 60 but it seems quick. Im happy with performance so far. But Ill try my 60 next time someones with me so they can do it off there watch. But im guessing mine is close to were it should be! To everyone who is not happy I hope GM will fix this problem! Because this is actually false advertisement of there product if not! Good luck guys and gals!
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Old 07-01-2009, 11:22 PM   #27
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Quote:
Originally Posted by songsj View Post
I've not jumped in because I'm not a 2SS owner yet, but it almost sounds to me like this traction control, launch control etc maybe the problem. The traction control in my '97 Z28 applies rear brakes, retards the timing and shoves the throttle back if the rear wheels start to spin. If I were you guys I would try to find out how to turn everything off completely, Launch control, traction control etc. make sure it's all completely off if possible, then hammer it and see what happens. My guess is if you get it all turned off, you better hang on!!!!! My 2 cents
We did. Turned it ALL off.

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Mine Ive had 2 weeks about 1000 miles on her. Alot of driving. Havent timed my 60 but it seems quick. Im happy with performance so far. But Ill try my 60 next time someones with me so they can do it off there watch. But im guessing mine is close to were it should be! To everyone who is not happy I hope GM will fix this problem! Because this is actually false advertisement of there product if not! Good luck guys and gals!
It would be false if they didn't fix the problem whitch I have full confidence that they will.

I'm not raggin on GM or Chevy or my dealer or anyone. I'm just disappointed.
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Old 07-02-2009, 12:07 AM   #28
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[QUOTE][We did. Turned it ALL off/QUOTE]

I wonder if somehow they are not getting turned off, even if you think they are.
What you are describing seems to wreak of a malfunctioning traction control.
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Old 07-02-2009, 05:48 AM   #29
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Vin 230
2300 Miles
0-60 Times 7.68 and 7.26

Very unhappy with performance. Looks are great but I am regretting getting the auto. GM said it was just as QUICK as the stick. You see I do not care to do 100+ Quarter Miles since that is speeding. I want to get to the speed limit quick and 0-60 in 7+ seconds is not the -5 seconds promised by GM.
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Old 07-02-2009, 06:53 AM   #30
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Quote:
Originally Posted by Scott@Bjorn3D View Post
Vin 230
2300 Miles
0-60 Times 7.68 and 7.26

Very unhappy with performance. Looks are great but I am regretting getting the auto. GM said it was just as QUICK as the stick. You see I do not care to do 100+ Quarter Miles since that is speeding. I want to get to the speed limit quick and 0-60 in 7+ seconds is not the -5 seconds promised by GM.

Tune your car and enjoy how it becomes a beast.
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Old 07-02-2009, 07:08 AM   #31
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VIN 12630
585 miles so far and I'm planning to change the oil within the next 200 miles or so
I haven't tried to time it yet but it's performing excellently. After a late night, empty street encounter with a Dodge Magnum and a Mustang GT, they would agree (moment of weakness with the new car, I usually don't street race at all). I'm trying to find time to get to the track and see what it can do once I change the oil.
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Old 07-02-2009, 07:11 AM   #32
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Quote:
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Tune your car and enjoy how it becomes a beast.
Voids the warranty, I want the car GM told me I was buying.
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Old 07-02-2009, 07:30 AM   #33
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Fbodfather mentioned these reasons why the L99 is slow to some..........

First -- it has torque management -- but it's important to understand that the computer 'learns' as you drive it......

Once the engine breaks in (1 to 2 thousand miles is initial breakin -- ) you can start 'getting on it' -- and the computer will "learn from that point on" --

By 5,000 miles, this car is gonna perform! Big Time.

Now -- you say: well - why didn't the 4th gens do this? Answer: Active Fuel Management........that brings a whole new dimension into play...and thus the need to 'learn'.......


Scott if you wanted instant HP from the box then you should have got a manual. However I bet when the car reaches its peak 5000miles it will be there. good luck
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Old 07-02-2009, 07:43 AM   #34
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Quote:
Originally Posted by MellowYellow View Post
Fbodfather mentioned these reasons why the L99 is slow to some..........

First -- it has torque management -- but it's important to understand that the computer 'learns' as you drive it......

Once the engine breaks in (1 to 2 thousand miles is initial breakin -- ) you can start 'getting on it' -- and the computer will "learn from that point on" --

By 5,000 miles, this car is gonna perform! Big Time.

Now -- you say: well - why didn't the 4th gens do this? Answer: Active Fuel Management........that brings a whole new dimension into play...and thus the need to 'learn'.......


Scott if you wanted instant HP from the box then you should have got a manual. However I bet when the car reaches its peak 5000miles it will be there. good luck
That line of thinking makes perfect sense except for that fact that others with the L99 have good power from the when they first get the car. My L99 has 900 miles, No oil change, Vin # 9981, its red so it automatically is a .1-.2 secs faster and I chirp on take off with TC off in sport mode. I am running what seems like about 5-6 sec 0-60 but I havent put a clock to it. It is much faster than the videos yall have put up. SOTPD tells me it has some punch.
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Old 07-02-2009, 08:29 AM   #35
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have been e-mailing a tuner in my area, he has gotten 20 HP and 25 ft/lb torque with LS3, he believes L99 has more potential, also believes more MPG with tune, he says I need more break-in miles before I try, so except for potential voiding of warrenty issue if you could get 20+ HP and more torque, is it worth trying? Would be done on dyno so I have before and after, and he would retune as I add CAI, shorty headers and cat back.
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Old 07-02-2009, 08:37 AM   #36
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It sounds as though there are less than a half dozen L99 owners with slugs...a low number, but still unacceptable. I hope you guys find a postive resolution...I know I would be pissed.
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Old 07-02-2009, 10:39 AM   #37
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Quote:
Originally Posted by MellowYellow View Post
Fbodfather mentioned these reasons why the L99 is slow to some..........

First -- it has torque management -- but it's important to understand that the computer 'learns' as you drive it......

Once the engine breaks in (1 to 2 thousand miles is initial breakin -- ) you can start 'getting on it' -- and the computer will "learn from that point on" --

By 5,000 miles, this car is gonna perform! Big Time.

Now -- you say: well - why didn't the 4th gens do this? Answer: Active Fuel Management........that brings a whole new dimension into play...and thus the need to 'learn'.......


Scott if you wanted instant HP from the box then you should have got a manual. However I bet when the car reaches its peak 5000miles it will be there. good luck
May be true. I been getting better times as I abuse the hell out of it.

Quote:
Originally Posted by live2well View Post
That line of thinking makes perfect sense except for that fact that others with the L99 have good power from the when they first get the car. My L99 has 900 miles, No oil change, Vin # 9981, its red so it automatically is a .1-.2 secs faster and I chirp on take off with TC off in sport mode. I am running what seems like about 5-6 sec 0-60 but I havent put a clock to it. It is much faster than the videos yall have put up. SOTPD tells me it has some punch.
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Old 07-02-2009, 10:42 AM   #38
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It sounds as though there are less than a half dozen L99 owners with slugs...a low number, but still unacceptable. I hope you guys find a postive resolution...I know I would be pissed.
Agreed. I hope that you guys do get your cars running the way that you think they should.
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Old 07-02-2009, 11:02 AM   #39
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Interesting. Last night I did a timed run on the road leading home from the office. (or I guess I should say this morning) using the Dynolicious on my iPhone. Calibrated, mounted tight, and ran. I know it's not the most accurate instrument but I'm told it's fairly close.

That being said, I don't know what to think of this run. I only went to like 85 or 86 MPH before I backed off so it wasn't a quarter mile. I set the vehicle weight about 200 lbs too light because I didn't account for me in the car and I only put 3800 lbs. and I know it's a little more than that. So anyway had I added the correct weight, the horse power would read a little higher.

Straight, flat road. 3:30 in the morning so nice and cool (for Bama) and I reved to about 2000 rpm before letting off the break and getting on the gas.

Anyway, check it out. I can't wait to try it again.

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Old 07-02-2009, 11:04 AM   #40
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I haven't driven my car much yet but I was driving a 2004 Mustang Cobra with 480hp, there is a big difference, yes, but when I put it in Competitive Mode I notice a marked difference from just the regular mode.

I'm not one to "break" my cars in slowly, I like to drive them from the start the way they will be driven, won't be going down the track anytime soon but I'm not being easy in it either.

I will try to get my 0-60 MPH time soon.

I'm sorry you guys are having trouble, I know it is very dissapointing.

Keep us updated, maybe we all can gain something from what you guys learn.
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Old 07-02-2009, 11:10 AM   #41
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Nice run! The 0-60 time is right in there! Looks like the car is learning how to behave!
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Old 07-02-2009, 11:15 AM   #42
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Interesting. Last night I did a timed run on the road leading home from the office. (or I guess I should say this morning) using the Dynolicious on my iPhone. Calibrated, mounted tight, and ran. I know it's not the most accurate instrument but I'm told it's fairly close.

That being said, I don't know what to think of this run. I only went to like 85 or 86 MPH before I backed off so it wasn't a quarter mile. I set the vehicle weight about 200 lbs too light because I didn't account for me in the car and I only put 3800 lbs. and I know it's a little more than that. So anyway had I added the correct weight, the horse power would read a little higher.

Straight, flat road. 3:30 in the morning so nice and cool (for Bama) and I reved to about 2000 rpm before letting off the break and getting on the gas.

Anyway, check it out. I can't wait to try it again.
Finally Randy !!! I am not trying to rag on you guys, but getting factual data makes all the difference in the world. Glad you have that. Now you can work on making things faster...

Congrats dude !!
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Old 07-02-2009, 11:19 AM   #43
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Originally Posted by irpq11 View Post
Interesting. Last night I did a timed run on the road leading home from the office. (or I guess I should say this morning) using the Dynolicious on my iPhone. Calibrated, mounted tight, and ran. I know it's not the most accurate instrument but I'm told it's fairly close.

That being said, I don't know what to think of this run. I only went to like 85 or 86 MPH before I backed off so it wasn't a quarter mile. I set the vehicle weight about 200 lbs too light because I didn't account for me in the car and I only put 3800 lbs. and I know it's a little more than that. So anyway had I added the correct weight, the horse power would read a little higher.

Straight, flat road. 3:30 in the morning so nice and cool (for Bama) and I reved to about 2000 rpm before letting off the break and getting on the gas.

Anyway, check it out. I can't wait to try it again.

Attachment 35918Attachment 35919Attachment 35920


If that's accurate I can't see how you would get beat by the Lexus? Going by your 1/8 mile time and mph,
your running low 13s @ 106 -107 mph or so. Maybe its the cool air, but based on those numbers there's nothing wrong with your car.
And you aint getting beat by no V6 Camaro that's for sure.
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Old 07-02-2009, 11:20 AM   #44
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Finally Randy !!! I am not trying to rag on you guys, but getting factual data makes all the difference in the world. Glad you have that. Now you can work on making things faster...

Congrats dude !!
Not sure how accurate it is. I'm a little confused because I launched the same way in the vid I did. But I set the iPhone up the way they instructed.
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Old 07-02-2009, 11:24 AM   #45
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Has any body tried The Chevy Voodoo Magic before a run?
Start the car off 3 times like you will be timing the run. Mash the peddle.
Then take your run. I know many had tried with other Chevy's on tracks and have shaved .1 to .2 off there times.
It has something to do with the computer learning thing.
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Old 07-02-2009, 11:30 AM   #46
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Originally Posted by irpq11 View Post
Interesting. Last night I did a timed run on the road leading home from the office. (or I guess I should say this morning) using the Dynolicious on my iPhone. Calibrated, mounted tight, and ran. I know it's not the most accurate instrument but I'm told it's fairly close.

That being said, I don't know what to think of this run. I only went to like 85 or 86 MPH before I backed off so it wasn't a quarter mile. I set the vehicle weight about 200 lbs too light because I didn't account for me in the car and I only put 3800 lbs. and I know it's a little more than that. So anyway had I added the correct weight, the horse power would read a little higher.

Straight, flat road. 3:30 in the morning so nice and cool (for Bama) and I reved to about 2000 rpm before letting off the break and getting on the gas.

Anyway, check it out. I can't wait to try it again.

Attachment 35918Attachment 35919Attachment 35920


Quote:
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Nice run! The 0-60 time is right in there! Looks like the car is learning how to behave!

i guess scott was right the car will start to learn after 2000miles
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Old 07-02-2009, 12:06 PM   #47
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Wow, that looks like it's running just fine...
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Old 07-02-2009, 12:41 PM   #48
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I have 1450 miles on my L99 and have a Corsa Catback Exhaust.I did four 0-60 times today with it about 90 degrees.I had times that ranged from 4.82 - 5.32 with a stopwatch in hand.Two runs were with TC on and two runs with TC off.The best runs were with TC off. Mine feels like it is running just fine.I am getting ready to install a set of American Racing Headers and a TVS 2300 MagnaCharger.
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Old 07-02-2009, 12:46 PM   #49
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So you guys think that the Dyno app for the iPhone is accurate to how much variance? Obviously I didn't run a 4.5 0-60 so there is an inaccuracy somewhere.

It would support the whole "Car learns you" theory. I can't wait to get Bonnies car back out to the strip and see what happens. If I am running in the 4.7-4.9 area, there is no way her car should beat me again. Especially as badly as she did. But can the my car adjust to my driving harder that fast?
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Old 07-02-2009, 12:50 PM   #50
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So you guys think that the Dyno app for the iPhone is accurate to how much variance? Obviously I didn't run a 4.5 0-60 so there is an inaccuracy somewhere.

It would support the whole "Car learns you" theory. I can't wait to get Bonnies car back out to the strip and see what happens. If I am running in the 4.7-4.9 area, there is no way her car should beat me again. Especially as badly as she did. But can the my car adjust to my driving harder that fast?
Hell, if that's the case, go out and hammer it. Make it learn the redline...
I hope you can either get it to the strip or back up your iPhone stuff with a GTech. Whatever method - you now have a baseline to improve upon and I know YOU will make it happen. You are definitely that kind of guy. C'Mon YOU DID STOP SMOKING - btw cool cigar smoke
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