General 1967-2002 F-Body Tech For general F-Body discussion that does not fit in any other forum.
For F-Body Technical/Information Discussion ONLY

Launching with a tc?

Thread Tools
 
Search this Thread
 
Old 01-13-2008, 01:24 AM
  #1  
Registered User
Thread Starter
 
LSWHO's Avatar
 
Join Date: Apr 2007
Location: Az
Posts: 927
Launching with a tc?

I am going to go to the track one of these days and I've never launched a stalled auto before. I keep hearing people say that their 60's are lower and I wonder HOW!? I have no traction!! Should I flash stall it or foot stall it (with brakes pre load)????

I need some DRs too.

Any help is appreciated!
LSWHO is offline  
Old 01-13-2008, 02:38 AM
  #2  
Registered User
 
Fatdog2's Avatar
 
Join Date: Oct 2007
Posts: 1,174
What tires?
Fatdog2 is offline  
Old 01-13-2008, 08:51 PM
  #3  
Registered User
Thread Starter
 
LSWHO's Avatar
 
Join Date: Apr 2007
Location: Az
Posts: 927
Originally Posted by LSWHO
I need some DRs too.
...
LSWHO is offline  
Old 01-13-2008, 09:28 PM
  #4  
Registered User
 
6SpdLT1Z's Avatar
 
Join Date: Sep 2004
Location: Lenexa, KS
Posts: 2,598
Originally Posted by LSWHO
I need some DRs too.
/thread
6SpdLT1Z is offline  
Old 01-13-2008, 11:06 PM
  #5  
Registered User
 
Fatdog2's Avatar
 
Join Date: Oct 2007
Posts: 1,174
Might drop the rear air pressure down to 30-32 lbs.Hope this helps.
Fatdog2 is offline  
Old 01-14-2008, 12:20 PM
  #6  
Registered User
Thread Starter
 
LSWHO's Avatar
 
Join Date: Apr 2007
Location: Az
Posts: 927
So in regards to my actual question, how do most people go about launching? Should I flash stall it or foot stall it (with brakes pre load)???? I can't just floor it with DRs can I?

Last edited by LSWHO; 01-14-2008 at 12:23 PM.
LSWHO is offline  
Old 01-14-2008, 04:28 PM
  #7  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,673
Best thing to do would be to try it both ways, and see what produces the best results for your particular setup. Ditto with the pressure in the DR's. Each car is going to react differently, and the results will also depend on how well the track is prepped.
Injuneer is offline  
Old 01-15-2008, 02:16 PM
  #8  
Registered User
 
twozs's Avatar
 
Join Date: Mar 2003
Location: hopewell jct(70 miles n of nyc)
Posts: 141
i find that a brake stand up to 1100 rpm and lower tire pressure. traction control retards the timing so thats a no no,traction off. to much rpm on the brake stand and the tires go up in smoke
twozs is offline  
Old 01-15-2008, 02:36 PM
  #9  
Registered User
 
bombebomb's Avatar
 
Join Date: May 2006
Location: Ohio
Posts: 1,856
Originally Posted by Fatdog2
Might drop the rear air pressure down to 30-32 lbs.Hope this helps.
I dont think pressure dropping really helps on a street tire.
bombebomb is offline  
Old 01-15-2008, 03:57 PM
  #10  
Administrator
 
Injuneer's Avatar
 
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,673
I think he's telling us that he will be using Drag Radials. 30-32psi would be sort of high for DR's, but who knows.
Injuneer is offline  
Old 01-15-2008, 05:42 PM
  #11  
Registered User
Thread Starter
 
LSWHO's Avatar
 
Join Date: Apr 2007
Location: Az
Posts: 927
Yes, I will be using drag radials. I had no traction stock. Now I have 3.42s and a stall. I wouldn't think of attempting to get traction on street tires.
LSWHO is offline  
Old 01-15-2008, 06:15 PM
  #12  
Registered User
 
rel3rd's Avatar
 
Join Date: Oct 2000
Location: Middle River MD
Posts: 133
I have a 3600 stall, 342 gears and 275/50/15 MT Drag Radials mounted on 15x10" Weld ProStars. Suspension is 100% stock

Like said above, ALL cars are different, so you'll need to experiment to see what YOUR car likes. MY car likes about a 5 second 1st and 2nd gear burnout, then roll up to the starting line and hold it at anywhere from 1300-1500 rpm's. On last yellow, I floor it, and this is what happens everytime.

(FWIW, my car has most bolt-ons, a baby cam, the above mentioned converter, and a tune.)



Driving the car around lately, with my "street" wheels and tires (17x9.5" ZR1's w/275/40/17 Yokohamas), traction is non-existent. If I am not careful, the car tries to darn near do a 180 anytime I nail it.

Last edited by rel3rd; 01-15-2008 at 06:19 PM.
rel3rd is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Daluchman1974
Cars For Sale
1
09-11-2015 06:12 AM
Critter
Drivetrain
6
07-13-2015 05:51 PM
Injuneer
LT1 Based Engine Tech
0
05-15-2015 08:45 AM
mark0006
Automotive News / Industry / Future Vehicle Discussion
3
12-25-2014 09:50 PM



Quick Reply: Launching with a tc?



All times are GMT -5. The time now is 05:08 AM.