[Contra]

i also heard peeing in the tank was good for gas milage too

 

[cplupton]

i found this on another site:

quoteear Tom and Ray:

I'm an aerodynamics engineer. When I was in the U.S. Air Force a few years back, I worked with folks from the Lockheed low-speed wind tunnel. In the 1970s, aircraft production went into a slump, and Lockheed started looking for other customers for its wind-tunnel services. Prime candidates were the auto makers, and Lockheed was successful in convincing Ford, among others, that the wind tunnel would help them reduce drag and wind noise on their vehicles. Needless to say, in the past 15-20 years, Lockheed has learned a lot about car and truck aerodynamics. Anyway, they actually performed drag tests on pickups with the tailgate both up and down, and found that drag was actually LOWER with the tailgate CLOSED! This ran counter to their intuition (and yours). The reason is that a closed tailgate sets up a large "bubble" of stagnant air that slowly circulates around the bed of the truck (we aero types call this a "separated bubble"). When air approaches the truck, it "sees" the bubble as part of the truck. So to the air, the truck looks like it has a nice, flat covering over the bed, and the air doesn't "slam" into the vertical tailgate. If the tailgate is open, or replaced by one of those "air gate" nets, however, that nice, separate bubble in the truck bed does not form (it "bursts"). Then the air approaching the truck "sees" a truck with a flat bed on the back of a tall cab. This is a very nonaerodynamic shape with a very LARGE drag. So, believe it or not, it's best for gas mileage to keep the tailgate CLOSED. Hope this information is helpful. Ed Fitzgerald, Research Assistant, Dept. of Aero/Mechanical Engineering, U. of Notre Dame

Tom: Sounds pretty convincing, Ed. Thanks. We also heard from none other than Bob Stempel, the former GM president, who wrote us to say that aerodynamically it doesn't make that much difference. But, he says, a pickup truck is structurally much SAFER with the tailgate up.

Ray: So for that reason alone, we suggest you throw away those tailgate nets, folks. And as your flight attendant might say, please return your tailgate to the upright and locked position.


off topic, but it was mentioned, i found a picture supporting it, but, i cant get it to post as i have no space to store it.

 

[Toney C]

Now that's good info!!!!! :thumbsup:

So what's up with the bed cover manufacturer's stating that installing a bed cover will increase your highway mileage? Aren't they playing off the theory of installing a cover will make your vehicle more "aerodymanic"??

Hmmmmmmm.

 

[Mr. B]

I read an article that discussed the "bubble theory" and then went on to say that a bed cover was better than no cover and a cab-high topper was better than the bed cover. What I wonder about is my toolbox....does it screw up the "bubble theory"?

 

[Toney C]

Anyone got a wind tunnel??

 

[burntfox]

They sale water displacement stuff now a days dont they? STP or summing like that? I think Ive used it before...

back then a bottle of alcohol cost me maybe $0.89 and that is high end drugstore price. now I would not put it in my Titan or any other modern fuel system due to computersa and the like . At least not till i was told it ok my a master mechanic that works on these type of engines. Besides I don't know about anyone else but my owners manual directlly states not to put any additives into my fuel system.
anyone ever run VP racing fuel (mixture or straight) in thier truck or any octane boosters, aviation fuel... I would like to know what results were or if there are any known ill effects ...
:idea:
In fact I am going to start a new thread concerning this on both this forum and CT also

 

[Mr. B]

.
anyone ever run VP racing fuel (mixture or straight) in thier truck or any octane boosters, aviation fuel... I would like to know what results were or if there are any known ill effects ...
................................................................................................................................I once mentioned the fact that high octane fuel does not contain any more "energy per pound" than low octane fuel and also mentioned that octane is a measurement of a fuels ability to resist pre-detenation and has no relation to the amount of power that can be derrived from that fuel.....then I took a turn towards the dark side and insinuated that the feeling of greater power from premium fuel was all in peoples heads, that they want it to be so....so it MUST be so. Wow, did I get berated....Therefore my new statement is this....Big octane numbers will net you huge power gains of unpararelled paportions. If you run staight octane booster, undeluted, you should easily see 1000 h.p.

 

[Nardo_twak]

Mr. B is a god and my hero...I idolize him to a degree that I feel we should put his picture for all to enjoy and oogle...Go Trekkies.
http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fei%3DUTF-8%26fr%3Dsfp%26p%3Ddork&h=387&w=270&imgcurl=www.xsfl.com%2Fimages%2Fdorkspeed.jpg&imgurl=www.xsfl.com%2Fimages%2Fdorkspeed.jpg&size=15.7kB&name=dorkspeed.jpg&rcurl=http%3A%2F%2Fwww.xsfl.com%2Fold_image.htm&rurl=http%3A%2F%2Fwww.xsfl.com%2Fold_image.htm&p=dork&type=jpeg&no=8&tt=23,543&ei=UTF-8

 

["THE KIZE"]

http://www.pureenergysystems.com/news/2005/03/17/6900069_Acetone/


anybody ever heard of this? sounds like it could make a big difference for us titan owners drivin' around these gas hogs

:smoke: dude if you like replacing injectors try the acetone i think the money saved from more mpg wont replace im sure a rabidly expensive injector set is not the answer

 

["THE KIZE"]

.
anyone ever run VP racing fuel (mixture or straight) in thier truck or any octane boosters, aviation fuel... I would like to know what results were or if there are any known ill effects ...
................................................................................................................................I once mentioned the fact that high octane fuel does not contain any more "energy per pound" than low octane fuel and also mentioned that octane is a measurement of a fuels ability to resist pre-detenation and has no relation to the amount of power that can be derrived from that fuel.....then I took a turn towards the dark side and insinuated that the feeling of greater power from premium fuel was all in peoples heads, that they want it to be so....so it MUST be so. Wow, did I get berated....Therefore my new statement is this....Big octane numbers will net you huge power gains of unpararelled paportions. If you run staight octane booster, undeluted, you should easily see 1000 h.p.

NEVER run leaded fuel in the titan unless you have the obdII device and just like replacing cat converters and up and downstream 02 sensors

 

[burntfox]

do not run Leaded fuel in modern cars, gotcha. got the gist of it on my other post too I totally forgot about compresion ratios also. My brother's ghost is laughin awful hard at me right now. Oh, well. We used to run it in old Harleys, where exhaust system was a pipe that most people have removed baffles from. he he. my bad was not fully thinking question thru there.:huh: