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01-12-2010, 09:58 PM
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CC Member
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Join Date: Aug 2009
Location: Phoenix,
AZ
Cobra Make, Engine:
Posts: 1,956
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Not Ranked
1/2 tank or full tank???
What do you all think.
My car hooks really well with a full tank of fuel (20 gallons) but with a 1/2 tank or less it is pretty loose.
do you think I will get better 1/4 mile times with a heavy load hooking up better or a lighter load with more wheel spin?
Dan
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FFR MK1---Sold
Superformance #884 --- Sold
No more Furds.
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01-12-2010, 10:42 PM
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Senior Club Cobra Member
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Join Date: Jun 2000
Location: Gilford,
NH
Cobra Make, Engine: FFR 302 carb
Posts: 8,121
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How full was your tank in Laughlin?
Mike.
Lighter weight helps at the drags.
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01-12-2010, 10:44 PM
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CC Member
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Join Date: Aug 2009
Location: Phoenix,
AZ
Cobra Make, Engine:
Posts: 1,956
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Funny Mike,
It was pretty low that day.
__________________
FFR MK1---Sold
Superformance #884 --- Sold
No more Furds.
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01-12-2010, 10:55 PM
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Senior Club Cobra Member
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Join Date: Feb 2008
Location: Jacksonville,
FL
Cobra Make, Engine: VSE alum. frame, FFR carbonfiber body (under construction)
Posts: 293
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Not Ranked
....1/2 TANK.....and learn to launch better with that (lower) weight. The first 2 seconds it helps....the rest of the trip it is hurting your time. Everything is compromise.
My 2 cents.
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01-13-2010, 12:10 AM
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CC Member
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Join Date: Aug 2009
Location: Atlanta,
GA
Cobra Make, Engine: 86 Everett Morrison 90" WB. 428 FE
Posts: 1,151
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Not Ranked
Leave the line with the tank full. Then jettison 3/4's of the fuel in second. Alla Darrell Waltrip, bombs away!
NO?
http://sports.espn.go.com/espn/cheat...ory?id=2963354
Pushed the envelope, worked in the gray areas, outsmarted the other guy, tweaked the car and invented new applications. And sometimes, just for fun, they stuck it to the man.
But cheated? Never. Doesn't happen, not in the eyes of the racers.
Last edited by Ralphy; 01-13-2010 at 12:13 AM..
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01-13-2010, 03:57 AM
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CC Member
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Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
Posts: 3,841
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Add lead to the car and put it where you want
DWRAT Dan Gas weight is about 7.5 pounds a gallon. You have to figure out the different between full and half tank of gas in weight. Put the weight in the back of the car on or inside the frame. go with a 40/60 split with more going to the R/R tire side. Also try 3/4 of full weight to start and see how car reacts to this. Adjust from there. Rick L. Ps you may have to change your driving style a little. Smoother is faster overall. This goes for 1/4 mile racing or road racing. Rick
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01-13-2010, 06:37 AM
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Club Cobra Member
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Join Date: Mar 2002
Location: Paris, France. City of wine and food,
Fra
Cobra Make, Engine: Paint:Metalflakes Royal and Abalone stripes registered in France in 1973. Engine: Ford Shelby aluminium block, 482; two 4-barrels 600cfm Holley; Edelbrock Performer Aluminium heads,,fluid damper,4-speeds Aluminium Toploader (short), 2.88rear
Posts: 209
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Quote:
Originally Posted by DWRAT
What do you all think.
My car hooks really well with a full tank of fuel (20 gallons) but with a 1/2 tank or less it is pretty loose.
do you think I will get better 1/4 mile times with a heavy load hooking up better or a lighter load with more wheel spin?
Dan
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I always got the best runs with full tank plus 90lbs of lead in the trunk. I have very much power and added weight at the right place helps me instead of slowing my departure. The initial grip is better with weight on the rear wheels.
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Queenie
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01-13-2010, 09:47 AM
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Senior Club Cobra Member
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Join Date: Dec 2000
Location: Chandler,
AZ
Cobra Make, Engine: 396W Kirkham KMPS036
Posts: 240
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Not Ranked
Rick, auto fuel is a little over 6 lbs/gal. Here is a reference:
http://wiki.answers.com/Q/Which_is_h...er_or_gasoline
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Bob McLinden
ERA FIA 2080 SOLD
Kirkham KMPS036
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01-13-2010, 10:16 AM
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CC Member
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Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
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I run more lead in the fuel
Robert Mclinden Bob I run alot of lead in my gas.  I think it weights a little more.    Rick L. |
01-15-2010, 06:23 PM
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CC Member
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Join Date: Apr 2009
Location: Phoenix,
az
Cobra Make, Engine:
Posts: 848
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I seemed to get better times with a full tank in my 2003 Cobra Mustang. That first 60 feet is probably more critical than the extra 40 pounds of fuel all the way down the track.
Your car is making lots of power making traction even more critical.
The best way of course would be to try it, I'm betting a full tank wins.  |
01-15-2010, 07:57 PM
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CC Member
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Join Date: Oct 2008
Location: Avon,
NY
Cobra Make, Engine: 1969 Mustang Fastback Pro-Street, constantly changing ongoing project!
Posts: 746
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First, try 3/4 of a tank for a compromise.
If not fill it up, it's better to hook at launch & carry the extra weight down the track.
__________________
Mick
(Of The Troops & For The Troops)
Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body; but rather a skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, WHAT A RIDE!"
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