[blacksilverado07]

do you go faster with the tailgate up or down? i have a single cab silverado v8 5.3 fleet side and i just lost a race to another single cab 5.3 but its a stepside.

 

[TahoeFever]

you get a better mpg less, wind resistance with the tail gate down cause it acts like a
parachute

 

[RockHead]

Take it off :rofl:

You will get more MPG with it down........ Will it make you go fasrter :no: push the gas to the floor :lol:


Mark

 

[95CTburb19]

It really doesn't make a difference as far as speed but you get better mpg's with it up cause it makes some sort of vortex thing that effectively causes the wind to push the truck forward.

 

[blacksilverado07]

so i would go slower if i have the tailgate down

 

[95CTburb19]

maybe........

 

[blacksilverado07]

alright man thanks i hope that helps me next week i wanna rematch the same truck

 

[95CTburb19]

what speeds were you starting from/going to and does he have any work done to the truck? These could add to why you lost.

 

[blacksilverado07]

1/4 mile from a complete stop and we got up to about 90-95 his is completely stock and mine has 22's and a flowmaster exhaust but his is a stepside so the whole back is made of fiberglass and on the straight beds its made of metal

 

[Holy Smoke]

If your race is for acceleration,,, take the tail off, and loose your spare, jack,tools, 1/4 tank of fuel, tire pressure max. on front, get the front up.
If your racing for speed, tail up. The air pressure will build up inside and in front of the tail. Air over the cab will not drop down so far and will ride across the air in the bed. There was a wind tunnel test on this. The air doesn't have to change directions so dramatically. I have not tested this. (in case any police are watching):happy:

 

[blacksilverado07]

its not about the start my truck always takes off faster but somehow he catches up like nothing

 

[TahoeFever]

If your race is for acceleration,,, take the tail off, and loose your spare, jack,tools, 1/4 tank of fuel, tire pressure max. on front, get the front up.
If your racing for speed, tail up. The air pressure will build up inside and in front of the tail. Air over the cab will not drop down so far and will ride across the air in the bed. There was a wind tunnel test on this. The air doesn't have to change directions so dramatically. I have not tested this. (in case any police are watching):happy:

Yah no kidding considering you got the famous pull me over red

 

[blacksilverado07]

pull me over red?

 

[sierraman]

the stepsides are always gonna be a hair quicker because they are lighter

 

[TahoeFever]

pull me over red?

the color red on a truck gives yah a greater chance on saying morning or evenin to the boys in blue ...they like pullin over red vehicles alot more than any other color ...

 

[blacksilverado07]

my truck is black though

 

[Sooner]

In addition to Mythbusters killing the tailgate down theory (I love Mythbusters), the National Research Council Canada (NRCC) showed that leaving the tailgate down or removed made wind resistance worse (5%) on trucks with the short beds and made little to no difference on trucks with long beds. So, leave the tailgate up and convince your buddy he needs to drop his. Maybe that's the advantage you need. LOL

http://www.nrc-cnrc.gc.ca/highlights/2007/0705uplands_e.html

 

[blacksilverado07]

but you would think that you would go faster because the wind can escape

 

[95CTburb19]

you could have different gears which would explain why you start out quicker but lose in the top end.

 

[Holy Smoke]

In addition to Mythbusters killing the tailgate down theory (I love Mythbusters), the National Research Council Canada (NRCC) showed that leaving the tailgate down or removed made wind resistance worse (5%) on trucks with the short beds and made little to no difference on trucks with long beds. So, leave the tailgate up and convince your buddy he needs to drop his. Maybe that's the advantage you need. LOL

http://www.nrc-cnrc.gc.ca/highlights/2007/0705uplands_e.html

I like your thinking. :great: Every one should visit the info above. Thank you Sooner !!!

Black Silverado 07 ,,, I think TahoeFever was talking about my "pull me over red" The police just mail them to me. I do have a I Support Sheriff's Depart. licence plate on front of truck. Helps a little.:neutral: