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-   -   Camaro SS Launch Control (http://www.camaro5.com/forums/showthread.php?t=5518)

jdpickering 07-25-2008 03:12 PM

Camaro SS Launch Control
 
It is said that the SS Camaro with the Manual Transmission will have Launch Control. How will this work? Everything I've seen on launch control is targeted toward Automatics wth pattle Shifters. You put the car in launch mode rev the motor and let off the break. It turns town Traction Control put the computer to allow the car to max out RPM's before shifting and just optimizes the shift points. Well it can't do all this on a Manual because you control the shift points and you control the clutch so what do they mean the SS Manual will have launch control?

av8r 07-25-2008 03:21 PM

Ill bet you it will have some cool features. I think the Cobalt SS TC has both launch control and no lift shift.

1973z-man 07-25-2008 03:58 PM

Quote:

Originally Posted by av8r (Post 100220)
Ill bet you it will have some cool features. I think the Cobalt SS TC has both launch control and no lift shift.

Launch control and no lift shift....sounds like what we used on the drag strip 30+ years ago except it was holding the brake down while mashing the gas peddle with an auto, and speed shifting with a manual.

When speed shifting a manual you do not lift, you nail the clutch fast and yank it hard through the gears. You better be good and you better be fast or you'll be taking your crankshaft home in the trunk. But, if you were good and fast you were just about unbeatable.

Launch control and no lift shift....I like it!!

jmliptak 07-25-2008 07:40 PM

Same idea but now done for you with computers, must take some of the fun out doing it well...

Mindz 07-25-2008 08:00 PM

Powershifting is dangerous, and sounds like a lot of fun while it's under warranty. =P

"Tach it up! Tach it up! Buddy, gonna shut you dooooooooown!"

fastball 07-25-2008 08:11 PM

If I remember the way it works on the Cobalt SS, you can hold the gas to the floor in every gear without letting up to shift. When you stomp the clutch, it holds the revs right where they are when you stomp the clutch for a second or two while you shift.

Without it, you'd either bounce the rev limiter, or as 1973z-man said, carry your crankshaft as you walk home.

Craig 07-25-2008 08:51 PM

I don't care what it's got so long as it's defeatable.

CamaroSpike23 07-25-2008 09:12 PM

Quote:

Originally Posted by Craig (Post 100460)
I don't care what it's got so long as it's defeatable.

but what if its beneficial to those who dont know how to double clutch?

gunslinger 07-25-2008 10:01 PM

I too would will want to be able to defeat it.

I want to drive my car, not have some computer do it for me.

If everyone used this "launch control" how could we ever be expected to learn to to actually launch a high HP car.

Granted it will be great for those impromptu light-to-light races on the street, but for someone trying to "learn" their car, computer nanny's will only hurt them...unless it is defeatable.

Supermans 07-26-2008 12:39 AM

Will it be holding the gas and break down at the same time for the auto???

CamaroSpike23 07-26-2008 01:26 AM

Quote:

Originally Posted by gunslinger (Post 100515)
I too would will want to be able to defeat it.

I want to drive my car, not have some computer do it for me.

If everyone used this "launch control" how could we ever be expected to learn to to actually launch a high HP car.

Granted it will be great for those impromptu light-to-light races on the street, but for someone trying to "learn" their car, computer nanny's will only hurt them...unless it is defeatable.

cus you dont have to launch at redline if you know what you are doing. too many people just redline the **** out of their cars and dump the clutch. really good way to jack up your drive train. if we can get a full dyno sheet on these cars and see where the tq curve lies, then find the right rpm to dump it at.

o2camaross 07-26-2008 09:00 AM

well with any production/stock gen III/IV motor the peak torque should be between 4,000-4,600. I KNOW there is no way with stock tires you can launch it at that rpm and expect anything more than just boiloing the tires. Not to mention hurting the drivetrain. i will start launnching it at 2,000 rpm and be moving up in 200 rpm incriments. im really curious as to how this launch control is supposed to work

stovt001 07-26-2008 04:32 PM

Usually MT, C&D, Edmunds, etc will publish what they found to be the ideal launch revs. With launch control the computer is programmed to hold revs at what GM's engineers found to be ideal launch revs. The feature was pretty well regarded in all reviews I've read of the new Cobalt SS.

The_Blur 07-26-2008 05:29 PM

Quote:

Originally Posted by o2camaross (Post 100717)
well with any production/stock gen III/IV motor the peak torque should be between 4,000-4,600. I KNOW there is no way with stock tires you can launch it at that rpm and expect anything more than just boiloing the tires. Not to mention hurting the drivetrain. i will start launnching it at 2,000 rpm and be moving up in 200 rpm incriments. im really curious as to how this launch control is supposed to work

That's a really great way to test it. Try it at a track to get some time comparisons. :thumbsup:

SSideways 07-27-2008 04:10 PM

Quote:

Originally Posted by fastball (Post 100424)
If I remember the way it works on the Cobalt SS, you can hold the gas to the floor in every gear without letting up to shift. When you stomp the clutch, it holds the revs right where they are when you stomp the clutch for a second or two while you shift.

Without it, you'd either bounce the rev limiter, or as 1973z-man said, carry your crankshaft as you walk home.

I just finished reading the new car and driver. This is exactly how they described the "no lift shift" feature. As for the launch control on the manual... "The engine computer limits revs and fiesses the throttle for traction after the clutch dump."

topgun1 07-28-2008 11:29 PM

It's been my experience in manuals to launch at about 2500 rpm and then dump the clutch. After alot of runs in the Acura, that was about the best engine speed I found to launch from. Of course, it will vary somewhat from car to car, but yes, launching from redline is a disaster waiting to happen.

boxmonkeyracing 07-28-2008 11:41 PM

Quote:

Originally Posted by topgun1 (Post 102373)
It's been my experience in manuals to launch at about 2500 rpm and then dump the clutch. After alot of runs in the Acura, that was about the best engine speed I found to launch from. Of course, it will vary somewhat from car to car, but yes, launching from redline is a disaster waiting to happen.

if your drivetrain can handle it then you can do it. seen a lot of racers around here launch at that high and some built up the drivetrain some didn't. the one's that didn't blew something up. lol.

my experience with the camaro 3200-3500 was pretty good and not dumping the clutch but quickly and smoothly releasing it. . .but it's so fast that it almost feels like a dump.

o2camaross 07-29-2008 08:43 AM

^ yea after i did all my mods to my 2002 SS i was launching at 4000 rpm, i was prolly pushing that weak little 10 bolt to it max but i didnt have the car long enough to break, it. it was stolen in january and im building another garage for my baby.

boxmonkeyracing 07-29-2008 11:08 AM

Quote:

Originally Posted by o2camaross (Post 102510)
^ yea after i did all my mods to my 2002 SS i was launching at 4000 rpm, i was prolly pushing that weak little 10 bolt to it max but i didnt have the car long enough to break, it. it was stolen in january and im building another garage for my baby.

there was a guy here that put hoosier slicks on his 10 bolt and was saying he was going to drop the clutch at 5000 rpms. he also had cam+tune and bolt ons. he was lucky nothing happened to his rear end.

SoFlaZ 07-29-2008 11:37 AM

I think it does what most you say, limit the revs after the launch so there is minimal wheelspin. OR I think it realizes when you are holding the clutch and have it sitting in 1st, when you rev it, it wont go past a certain rpm. I think it is the first idea though.

Launch control would have been great on the vette's because my last time at the drag strip, a guy with a spankin new LS3 with the paper dealer tag still on it was there and almost lost to a new tundra(had a 100 shot) because he dumped the clutch so hard he spun and barely moved till he shifted to 2nd by the light tree. Some people need these nannies because they get too excited or something. I would like it to help me get better at launching until I can do it as good as the comp can.

o2camaross 07-29-2008 02:23 PM

Quote:

Originally Posted by boxmonkeyracing (Post 102595)
there was a guy here that put hoosier slicks on his 10 bolt and was saying he was going to drop the clutch at 5000 rpms. he also had cam+tune and bolt ons. he was lucky nothing happened to his rear end.

yea he would deffinetly be asking for it. i had a cam ls7 clutch and nitto drag radials and i was pushing it. I maiss that car sooo much

ckellyme3 07-29-2008 03:06 PM

Quote:

Originally Posted by jdpickering (Post 100214)
It is said that the SS Camaro with the Manual Transmission will have Launch Control. How will this work? Everything I've seen on launch control is targeted toward Automatics wth pattle Shifters. You put the car in launch mode rev the motor and let off the break. It turns town Traction Control put the computer to allow the car to max out RPM's before shifting and just optimizes the shift points. Well it can't do all this on a Manual because you control the shift points and you control the clutch so what do they mean the SS Manual will have launch control?

You are badly misinformed. Launch control works in manual transmissions only. You simply select it (in the Cobolt SS and HHR SS) by hitting the traction control button twice, once to turn off the tracton control and the second time to turn on launch control. When you put it in 1st gear while holding the clutch in, you floor it and the RPM will stay right at the redline. When u release the clutch you take off perfectly. It takes all the guess work out of getting a perfect launch hence launch control and im almost positive no automatic cars have it but i could be wrong.

theholycow 07-29-2008 03:19 PM

Quote:

Originally Posted by ckellyme3 (Post 102820)
You are badly misinformed. Launch control works in manual transmissions only.

Not necessarily true. Maybe the Cobalt's "Launch Control" feature works like that, though it doesn't sound like it'd make a perfect launch at all; it sounds like all you'd do is burn off your tires. Anyway, without it, a modern car isn't going to go past redline anyway, but it might do a more sudden fuel cut resulting in "bouncing off the rev limiter" rather than smoothly holding redline.

The VW GTI with their DSG dual-clutch automated manual transmission (they don't offer a traditional "slushbox" automatic) has a "Launch Control" feature that allows the driver to launch like a high-RPM clutch dump even though there's no clutch pedal. That's what I thought of when I heard of "Launch Control" in the Camaro.

Who needs a computer to baby them for launching a manual transmission?

greenrail 07-29-2008 03:43 PM

Gee, when I was young we didn't touch the clutch pedal when power shifting!!!

And By the way - It is "Pedal" not "Pettle"

And it is "Brake" not "Break".... You brake with your foot, you break when you wreck your car.

wildpaws 07-29-2008 07:33 PM

Quote:

Originally Posted by greenrail (Post 102869)
Gee, when I was young we didn't touch the clutch pedal when power shifting!!!

And By the way - It is "Pedal" not "Pettle"

And it is "Brake" not "Break".... You brake with your foot, you break when you wreck your car.

Actually for what he was trying to say it was paddle not pedal or pettle.
Clyde


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