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disappointing track times in 04 Cobra

  • Thread starter Thread starter Venom99
  • Start date Start date Sep 2, 2006
V

Venom99

New Member
Jul 8, 2003
1
0
0
So Cal
Sep 2, 2006
#1
  • Sep 2, 2006
  • #1
Went to the track for the 1st time yesterday (only had the car for 1 month now)..

ran about 7 times and the best time i could get was 12.44@112, 60 ft was 1.977.

for the life of me i cannot figure out how to launch this car, i was on some M/T drags 275/40/17. and my best 60 foot time was 1.977 ( but most were 2.0 - 2.1). i tried launching from different rpms from 2500-4000, dumping the clutch, riding the clutch, all included a 2nd gear burn out. psi on tires were 12lbs - 14lbs.

car is an 04 vert, intake,exhaust,off road x pipe,mgw shifter,sct xcal, BF 2.76 w/3 aux idlers, BF irs brace - dynoed at 461hp/467tq


Tranny was very tempramental, sometimes very easy to shift other time very hard to get into gear??? is that normal???


I also iced the charger and TB and put ice into coolant resouivor.


Any help and advise would greatly be appreciated. I havent raced in 3 yrs but i think i drive pretty well, got my 99 cobra 13.5s on streets w/minor bolt ons ..


what kind of 1/4 mile times should i be expecting ??? i was hoping for 12.0s at least.
 

Dan_Soprano

15 Year Member
May 7, 2003
7,410
54
129
Jacksonville, FL
Sep 2, 2006
#2
  • Sep 2, 2006
  • #2
the tranny thing is normal. You need to 1. change the fluid to the GM syncromesh, 2. get yourself a MGW shifter, and 3. get the Fiore quadrant and micro click adjustor. Those times aren't bad for the first time at the track with the car in all honesty. These cars are super hard to launch if you aren't used to them. Keep at it and you'll find the sweet spot!

edit, cancel #2, I see you already have it
 
U

Uncle Meat

Banned
Jun 13, 2002
0
1
0
Prattville, Alabama
Sep 3, 2006
#3
  • Sep 3, 2006
  • #3
You want better times? Dump the IRS and put a straight axle from a GT in. Your 60' times will drop like a rock. The IRS is just not designed for hard launches unless you want to throw a wad of money at it.

U.M.
 

Dr. Wu 2000

New Member
Feb 16, 2004
554
0
0
Eastern, Pa.
Sep 3, 2006
#4
  • Sep 3, 2006
  • #4
You also have a vert so that is working against you too lots of lb's
 
V

Venom99

New Member
Jul 8, 2003
1
0
0
So Cal
Sep 3, 2006
#5
  • Sep 3, 2006
  • #5
thanks to everyone who chimed in.... i was gonna do the tranny but i ran outta time to do it on fri.. i was gonna put gm or the royal purple stuff...


what times should i be satisfied with the way it is right now...461hp/467tq on drag radials? i know i need to get my 60 down to 1.8 at least.
 
B

brin0357

New Member
Jan 26, 2006
169
0
0
Sep 3, 2006
#6
  • Sep 3, 2006
  • #6
Uncle Meat said:
You want better times? Dump the IRS and put a straight axle from a GT in. Your 60' times will drop like a rock. The IRS is just not designed for hard launches unless you want to throw a wad of money at it.

U.M.
Click to expand...
Exactly, IRS isnt meant for drag racing plan and simple. They designed it for handling. Dumping the clutch is gonna do you any good unless youve got alot of sticky tire anyways. If you want to make it a drag car throw a 9" under it and build some traction bars.
 
0

03mustangcobra

New Member
Mar 21, 2006
52
0
0
Sep 15, 2006
#7
  • Sep 15, 2006
  • #7
Venom99 said:
Went to the track for the 1st time yesterday (only had the car for 1 month now)..

ran about 7 times and the best time i could get was 12.44@112, 60 ft was 1.977.

for the life of me i cannot figure out how to launch this car, i was on some M/T drags 275/40/17. and my best 60 foot time was 1.977 ( but most were 2.0 - 2.1). i tried launching from different rpms from 2500-4000, dumping the clutch, riding the clutch, all included a 2nd gear burn out. psi on tires were 12lbs - 14lbs.

car is an 04 vert, intake,exhaust,off road x pipe,mgw shifter,sct xcal, BF 2.76 w/3 aux idlers, BF irs brace - dynoed at 461hp/467tq


Tranny was very tempramental, sometimes very easy to shift other time very hard to get into gear??? is that normal???


I also iced the charger and TB and put ice into coolant resouivor.


Any help and advise would greatly be appreciated. I havent raced in 3 yrs but i think i drive pretty well, got my 99 cobra 13.5s on streets w/minor bolt ons ..


what kind of 1/4 mile times should i be expecting ??? i was hoping for 12.0s at least.
Click to expand...

You are right in the average for your setup. With practice you can probably get down to around 12.0. I'd say that 12.0 to 12.8 is around the area your car will run in. Tranny sounds like it could use some help per other posts.
 

SVT98Snake

New Member
Apr 15, 2005
258
0
0
OK, USA
Sep 15, 2006
#8
  • Sep 15, 2006
  • #8
I say with that power you should run 11.9-12.1@116-118.
 
T

thomas91169

I'd donkey punch my sister.
Aug 19, 2005
0
0
0
Modesto, CA
Sep 16, 2006
#9
  • Sep 16, 2006
  • #9
just learn it better.

ive seen some awesome launches from guys at the track with nothing but DR's and a IRS brace out back.

one guy hella feathers the clutch through first and it ****ing shoots out of the hole.
 
W

wma8706

New Member
Oct 1, 2004
2
0
0
Sep 18, 2006
#10
  • Sep 18, 2006
  • #10
Quality full length subframes will do wonders for your car. What were the track conditions? With your power...I think you should be doing a little better than 112 traps.
 
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