Trying to launch car
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
Likes: 0
Trying to launch car
I have a 99 c5 vette cam, stall ,headers car made 350whp .. I want to race this car at the track and I took it out for the first time. Very disappointed I bought the car with these mods and did a few myself I was told that the traction controlled was deleted or disabled and when I push the button nothing happens at all.. tried to warm up the tires and it only goes up to 2k and loses power or sets the rear brakes .. so I tried to launch it from the start using the brake and nothing still wouldn't take off hard I'm kinda frustrated wondering if someone can point me in the right direction. Also no wheen spin punching it at even 10 MPH? I was told it had to do with the ebcm restarting the timing and setting the rear brakes ?? What can I do to fix this track use and maybe a few runs on the street every now and then ..
Instructor
Joined: Sep 2016
Posts: 185
Likes: 153
I'm a fairly new owner, so I'm sure some one with more experience than me will soon chirp in here, but could this be "limp home mode"?
Are you getting any messages on the DIC?
Are you getting any messages on the DIC?
Last edited by Vetteman Jack; Jan 16, 2017 at 11:13 AM. Reason: No need to quote the post when you are the next poster.
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I'd try to get the car to an experienced tuner to take a look at what's going on. I never heard of this. I was going to say it sounds like you have a catalytic converter issue but I don't know what the brakes would have to do with it. Torque management is disabled on my car and I don't have any of the issues you speak of. In fact, the car was much stronger. Do you have any codes?
Last edited by Vetteman Jack; Jan 16, 2017 at 11:19 AM. Reason: Deleted quote to clean up thread.
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If you push the traction control button and the DIC does not give a message that traction control is off, something is not working right. May want to get that checked out.
Drifting
Joined: Aug 2007
Posts: 1,721
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From: Redding ca.
Before staging, turn off traction control roll through the water box. Then hammer down, you should have no problem lighting up the tires.at the tree,stage your front tires early.( dust as the second stage light turns yellow) this compensates, for slow reaction time. Your time SHOULD improve.keep practicing. I hope that helps.as far as dry burnouts? Mine does the same thing.
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
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The car is tuned and when I push the t/c button nothing happens at all no messages . Could I start pulling abs fuses and will that stop the ebcm ? If I do that and notice a change then Ill take it back to my tuner and have his see what's going on??
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1/4 mile/AutoX
Joined: Jun 2014
Posts: 11,440
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From: Buffalo Texas
might stop the brakes but not the engine controls.
Instructor
Joined: Nov 2016
Posts: 154
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From: Santa Cruz CA
I have a 99 c5 vette cam, stall ,headers car made 350whp .. I want to race this car at the track and I took it out for the first time. Very disappointed I bought the car with these mods and did a few myself I was told that the traction controlled was deleted or disabled and when I push the button nothing happens at all.. tried to warm up the tires and it only goes up to 2k and loses power or sets the rear brakes .. so I tried to launch it from the start using the brake and nothing still wouldn't take off hard I'm kinda frustrated wondering if someone can point me in the right direction. Also no wheen spin punching it at even 10 MPH? I was told it had to do with the ebcm restarting the timing and setting the rear brakes ?? What can I do to fix this track use and maybe a few runs on the street every now and then ..
If you're planning to race the car, install coilovers before you do anything else, and get a good system, don't cheap out, consider Penskes and other race worthy brands. The better your suspension is, and the stickier your tires, the more power you can actually put down. So whether you're drag racing or track racing having the correct suspension for your application will make an enormous difference.
And yeah you're probably going to want to delete the traction control yourself, which just involves talking to a tuner who can work on your ECU and effectively disabling it, by giving it crazy high tolerances. Once the traction control and active handling are gone, work on your suspension, you wont regret it!
Melting Slicks
Joined: Sep 2011
Posts: 2,258
Likes: 543
From: Appleton WI
Pull the panel that has the traction control button and see if it is plugged in. The previous owner may have unplugged it thinking that disabled it. Also check you codes as previously mentioned.
1/4 mile/AutoX
Joined: Jun 2014
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From: Buffalo Texas
Racer
Joined: Jun 2016
Posts: 380
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From: Kelso Wa.
With traction control on, mine gets up to 2k and kind of stutters and what not. With traction control off, I get a message that says traction control disabled. I'd go out and try an emergency stop and see what happens.
Another thing, you might need to install a higher stall torque converter in order to get higher on the power band for a better launch.
Another thing, you might need to install a higher stall torque converter in order to get higher on the power band for a better launch.
Thread Starter
Cruising
Joined: Jan 2017
Posts: 11
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Still a problem
So I know I need suspension etc just trying to get this so I can do a burnout and launch I have a Hughes 3k stall converter. So that should be good enough I also have pulled the 2 maxi fuses and the trans abs fuse and the switching cab is plugged in still nothing tried to burn out and it went to 2k and bogged real hard then look off service abs and all them messages come up so I have a clutch it might of been tuned out could I Unplug the big connector on the ebcm would that do anything??
Racer
Joined: Jun 2016
Posts: 380
Likes: 67
From: Kelso Wa.
The only suggestion I have, would be to take it to a tuner to see what's going on. Your torque converter should flash anywhere from 2800 to 3200 rpm, so I think you should be able to just romp on the gas and light 'em up if no traction control.