question about top fuel dragsters and funny cars.....

7-up man · September 16th, 2007, 08:33 PM

I went to the races friday night (midsouth nationals at memphis motorsports park) and saw night qualifying for the first time. it was a sight to behold.

While I was watching, a question came to mind.

when those cars do their burn outs, there are no flames out of the headers and they DEFINATELY dont sound the same as they do when they actually launch during a race.

What gives? are they burning a non-nitro fuel during burn out? only firing on one magnito?

whats the difference in the burnout and the actual launch?

TheBusher · September 16th, 2007, 08:35 PM

Maybe they don't have the throttle all the way down during the burnout?

7-up man · September 16th, 2007, 08:38 PM

Originally Posted by TheBusher

Maybe they don't have the throttle all the way down during the burnout?

I duno. I just know when they launch, there are 12 foot flames comming out and the things will nearly burst your ear drums.

when they do a burn out, they dont sound much different than any other outlaw street or bracket race car with open headers and there are no flames.

they have to be doing something different during the burnout.

im guessing no nitro to save on money. maybe they are just burning alky during the burnout.

MustangMatt96GT · September 16th, 2007, 08:44 PM

well if you watch the crew, the cheif adjusts the carb for the last time after they have done their burnout. This takes it up to full potient power and that is my guess.

Darrell · September 16th, 2007, 08:51 PM

If I remember correctly they actually turn on the nitromethane injection after the burnout but I don't remember for sure. We had VIP passes to the MAC Tools pit a couple years back in Joliet and they explained how these cars work. I don't remember all of the specifics though.

mikebert · September 16th, 2007, 08:54 PM

I think they only use one (of two) fuel pumps during the burnout as well.

MustangMatt96GT · September 16th, 2007, 09:44 PM

Originally Posted by Darrell

If I remember correctly they actually turn on the nitromethane injection after the burnout but I don't remember for sure. We had VIP passes to the MAC Tools pit a couple years back in Joliet and they explained how these cars work. I don't remember all of the specifics though.

That is what i was trying to remember. They do it becasue they only have enough fuel to make it down the track after they have done their burn out and about to stage. Thanks darrell!

September 16th, 2007, 08:33 PM	#1
7-up man Regular Join Date: Jun 2007 Posts: 89	question about top fuel dragsters and funny cars..... I went to the races friday night (midsouth nationals at memphis motorsports park) and saw night qualifying for the first time. it was a sight to behold. While I was watching, a question came to mind. when those cars do their burn outs, there are no flames out of the headers and they DEFINATELY dont sound the same as they do when they actually launch during a race. What gives? are they burning a non-nitro fuel during burn out? only firing on one magnito? whats the difference in the burnout and the actual launch?

September 16th, 2007, 08:44 PM	#4
MustangMatt96GT All Throttle with a Bottle 1996 Mustang GT 12.91@105.29 @ 5800 FT Join Date: Dec 2006 Location: Lakewood, CO Posts: 7,530	well if you watch the crew, the cheif adjusts the carb for the last time after they have done their burnout. This takes it up to full potient power and that is my guess. __________________ We expect shit to break, look foward to realizing exactly when it is happening, and than obsess about dropping plenty of cash to rebuild stronger, so we can try to run it hard as hell and break again. We are sick individuals.

September 16th, 2007, 08:51 PM	#5
Darrell Feb 08 ROTM 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 7,389	If I remember correctly they actually turn on the nitromethane injection after the burnout but I don't remember for sure. We had VIP passes to the MAC Tools pit a couple years back in Joliet and they explained how these cars work. I don't remember all of the specifics though. __________________ Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft

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September 16th, 2007, 08:35 PM	#2
TheBusher Hardcore Enthusiast 2002 Chevrolet Impala ??? Join Date: Jul 2007 Location: Englewood, Colorado Posts: 2,193	Maybe they don't have the throttle all the way down during the burnout?

September 16th, 2007, 08:54 PM	#6
mikebert Enthusiast Join Date: Oct 2006 Location: Augusta, GA Posts: 906	I think they only use one (of two) fuel pumps during the burnout as well.

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