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JPonder - I personally don't drive that fast either. I think most here will say, "DOOKIE," [credit-joesoot] on this idea, but here it is anyway. I wouldn't complain if all the speed limits went back to 55 mph.

You know those emails you get from time to time that say something like, "don't get gas from Wednesday to Sunday on such and such dates, we'll show them rag-heads?" Well, that crap don't work. Why would it? You have to get gas before and after those dates so it evens out. The only real way to lower the fuel prices is to reduce demand. The way to reduce demand is to reduce the use. If the speeds went back to 55 mph, and cops would write tickets for 62 and over, there'd be a he11 of a lot less fuel used, and demand would be less, and the cost would go down.

But those same idiots that come up with the, "don't get gas for these days," are the ones who don't have the discipline to slow down and save gas. They want cheaper fuel, but don't want to put any real effort toward it.

I've got a 35 mile drive to work. If I slow down by 5 mph, you know how much longer it takes me to get to work? Less than 3 minutes longer (due to the stops). Does that hurt me? No, 5 mph, and 3 minutes doesn't bother me. But if everybody did that, would it lower demand? You bet! Could everybody be convinced to slow down? I highly doubt it. So I'm for 55 mph on the Interstates. Running 60 mph is fast enough for everyone. Shoot, my grandfather used to walk everywhere he went, that puts some perspective on 60 mph. And, to top off all that, I'm driving my wife's old car (now mine, I keep the truck in the garage). It's a 1990 1. 6L Toyota with 171,000 miles, and I'm getting 36+ mpg back and forth to work. So when the higher prices of fuel hit (and they will), I'll still be driving relatively cheap.

My $. 02, let me know if you guys need change, hehehehe. #ad


- JyRO
 
JyRO,maybe I'm a old fart ,but I would also like to see the speed limit lowered,not to 55,but more like 65. In areas were it's 75 and everyone drives 80+ it's down right dangerous to try to drive slower,people come up on you way too fast. Your right,unless you're driving 8 hours a day driving fast saves little time. My 2¢
 
I can tell right now, John Ponder is telling the truth. I thought when he told me about his constant throttle deal, that maybe the boy was dreaming. I saw it with my own eyes. Now, after getting some tips from Ponder I'm getting 22-23 on the road. Since John and I hooked up at the SETDR day in Atlanta a couple of weeks ago, my mileage is up (so's my power). I have an ETH but don't drive 52. I do drive conservatively and don't get into the throttle unless I need to.
As far as measuring and recording, we just need one of those deals like the use for the boat tests that measure fuel flow. It would have to be a differential setup to measure what is going to the pump and what is being returned to the tanks. The difference between those two was used to make horsepower.

John, you don't have anything to prove. I believe if you run that ETH that slow, it will just sip fuel. It does have the smaller injectors, right? If someone doesn't believe you, let them ride from Atlanta to Lousianna with you. They won't ever question you again #ad
.

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2001 HO 6 spd 2500, 4. 10 LSD, Towing Package, Electric Brakes, SPA EGT/Boost Gauges, Fog Lights, Real Backup Lights, Molded Running Boards
 
Alan - Just as a note. I didn't say I didn't believe him. I do. Maybe I didn't make that so understandable. I do believe him, I just think it's sort of unrealistic. I have to believe him when I can get 22 mpg at 70 mph. If I were to slow down 18 mph, I'd be getting in the range he's talking about too.

- JyRO
 
Well, I bought this truck at Thanksgiving, and drove it home from Missouri. At 70, with a/c, cruise control and the tail gate up, I measured 23. 6mpg. With the taller tires, the mileage is more like 24! Since then, I slid the #12 plate all the way forward and, even though thats a lot more fun, my mileage suffered pretty good and Ive pulled it back again.

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97 2500 CC 4x4 3. 54 5spd, Green, #12 plate slid all the way forward, 4inch open exhaust, 235/85 Michelins, RS 9000's, PrimeLoc, Red Tops, TDR cloisonae grill badge!
 
Originally posted by jponder:

What magnetic gizmo? Do you mean that bombed cruise we were talking about.

JP

If you look in the JC Whitney catalog there is a magnetic device you place over your fuel line that supposedly breaks up the larger fuel molecules so the fuel can burn more evenly, hence increasing the mileage. About $15. 00 in the JC. Whitney catalog. Check it out. :Rolleyes:

I've heard/read others on the list mention the gadget. I think you should buy one and then tell us if it help on your next trip down to Amite for the Oyster Festival.

I like your cable apparatus however I would prefer an electronic device that would maintain a constant throttle using the TPS that would be deactivated by pushing on the brakes. This idea is being discussed on another thread I think.

Later
 
JyRO,I asked about the magnetic fuel enhancer(that was the name of the thread for search).
Seems like all the people who responded wanted to sell me a bridge in NY.
 
jponder-

It appears from the posts above that you set the throttle cable at 52mph and thats it.

How did you rig the throttle?

Anything else?

A couple of ideas for your mileage quest:

1. You could make a cap made out of plywood that fits to the top of the cab and tapers to the top of the tailgate.

2. Build an airdam that extends to an inch or so above the ground under the front bumper.

3. Take off your mirrors and antenna.

4. Tape the gap between the bed and cab with duct tape.

5. Wax it good before you leave.

6. Air the tires to 65psi.

You may just make 30mpg #ad


I may try it at 55mph (compensating for 33. 1" tires) for a 100 miles and see what happens.

I did drive to San Angelo from Houston at 65-68mph with the cruise and only made 19. 89 which really bummed me out... and almost made me puke from the boredom.

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99 QC 2500 ST 4X4 SB 24V/5speed 3. 54/LSD Driftwood/Agate
Walker 21468, VDO, Bridgestone 285/75/16 MT's, RS9000's, Hella 500's

http://www.0hassleisp.com/dwilk/243'sRamPage.html

-- email address removed --
 
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Alan> Yeah I know it doesnt make sense to try to prove it. I just like to bang around ideas and see what happens. Sometimes the ideas get all banged up like a metal Garbage Can!!!!!Just think of all the mileage info and testing we would get if people were real fired up on mileage like they are on 1/4 mile times. Noone would ever die in Nascar because they would givem all a gallon and say person who goes the farthest winns ; Man that race would look real different. LOL I still want to make another stab or two at it though; its really fun in its own way! Next time we go to the strip I want to see what my new 1/4 mile times are; I have my 1/4 mile times pre VA so I am interested in post VA.

Cocahoe> LOL oh I see about the magnet now. I'm not sure when the Oyster Festival is but I will be cruising down for Mar24 prob. My Daughter turns 18.

JJ> I have no idea what that is!

Jyro> I'm with ya now..... Like I said I like to bang around ideas and I get some good feedback on here. Hey just think if lots of people started certifying mileage. Wwith real accurate mileage and speed info you could really start to tell just what mods were doing to mileage. You could establish some Bona Fide numbers to crunch and see what was up. Do you recall that big mileage post about The article Joe Donnoly wrote man you got everybody on here talking theory but not one person commited to I think X is the best speed for mileage or I beleive mod X,X,X will achieve maximum mileage, We need a mileage forum for mileage "freaks" as JJ called him self!



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2001 ETH/DEE ST 4X4 SPACE SHUTTLE
 
jp,another mod you may want to consider before you head out again at 52 mph is my patented
rear facing grape soda loaded windshield washer tailgater preventer. #ad
 
Hey 243>
You must have posted while I was posting so I didnt see it. They sell throttle cables but mine is just a thin piece of aircraft cable that runs to a turn buckle so you have to twist it to throttle up. It was less than 10$ but there are all kinds of cables out there. I also have a VA.

I beleive the throttle cable does more for mileage than the VA. How about just a truck Cap . I have heard that they can give an extra mile! Oh I didnt mention that I had my KLR 250 dual sport bike in the bed going 70 MPH home when my mileage dropped to 21. 9 so maybe it was catching some air. An AIr dam in front seems like it would hurt but I really dont know much about that.

I need to get some highway tires when these michelins run out maybe some 85 series some taller and thinner. I think that may help. Then I could have my off road set also for the woods.

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2001 ETH/DEE ST 4X4 SPACE SHUTTLE
 
jponder,

I suggested the plywood cap based on the Dodge Ram wind tunnel tests by the engineering students... school project I believe. Someone will remember the test and hopefully post a link.

If you have a cap already it would be worth a try.

243
 
jponder - I am a mileage freak too. But I guess anything below about 60 mph really seems a bit too slow for me. A couple questions I have.

1) Why 52 mph? What is it about that speed that made you choose it? Is it a certain rpm in top gear that you're acheiving?

2) I totally agree with the certification idea because I personally don't believe the VA will help with fuel mileage. Don't get me wrong, I ain't knocking the VA, and I'm not saying its not possible. But I'd have to see, "certified," results to believe it. I personally think its just, "hype," to make them sell better ("Improved power & IMPROVED FUEL MILEAGE. ") I've learned that if it sounds too good to be true, it probably is.

3) I'm also a motorcycle freak. I roadraced (knee-draggin') a Kawasaki 600 in 1997 & 1998, and won an all motorcycle drag race in 1997. I still have the bike, its still a rocket. But I'd like to have a dual sport bike, the KLM sounds cool. One time I hauled a different bike I had (Suzuki GSX-R 1100) in the back of my dad's truck with the tailgate down holding the bikes rear wheel/tire (1992 Chevy 1500 5. 7L SC 2X4 SB). I put on the cruise at 65 and ran it for about 500 miles. It got 23. xx mpg. That was with the bike in the back. Not too shabby, ay?

4) I vaguely remember a post not too long ago talking about pick-up trucks and drag. As a project, some college students studied via a wind tunnel drag on pickups with (no top) tailgate up, tailgate down, tailgate removed, a cap, and a tonneau cover. Surprisingly, if I remember correctly, the tailgate down with no other top produced least drag. Even the tailgate being removed was higher than with it down #ad
I think the tonneau was better than the cap. And I think the reason was that behind the cap was a large vacuum area (that creates drag) and is proven by the dirt accumulation on the back of capped trucks (and SUV's/Vans). Maybe someone else can provide a link to that.

Sorry about my posts being so long, but I type rather quickly, and my brain shoots out thoughts quicker than I can type 'em.

- JyRO
 
Jyro>

1> No I just twist the turnbuckle till I am buzing above 50 then I just let the truck reach whatever speed it does. A slight change in throttle position makes a big difference. It looked good to me so I muttered something from a movie and settled in for a long winters nap.

2> Really see I think the VA must make a big difference because Alan Reagan saw an immediate gain but then again maybe he got excited about mileage and started driving different when he wanted to check mileage you know. You are right though lots of people checking mileage and having some way to keep the numbers real would absolutely let us know what was what.

3. That KLR 250 is a cool bike liquid cooled 4 stroke; gets 65 in the city but get this on the highway it plumets to like less than 50. I rode it from Atlanta to Louisiana in December when my truck was ordered and it was all I had running. I told my buddy I was going to drive it 50 all the way to La and crack the 70 MPG barrier, but man it was COLD and that 50 lasted about 15 minutes and then it was balls to the walls wide open all the way home. It only has 2. 9 gallon with reserve man that trip was brutal. I think that KLR 650 would be a good dual sport but I do love the 250 too Its just that i weigh more than it. Its hard to trust a vehicle that you outweigh LOL

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2001 ETH/DEE ST 4X4 SPACE SHUTTLE
 
243

Here it is.

Maybe this will settle the Drag argument once and for all.

.
Did You Know?

Improving Aerodynamic Characteristics of a Dodge Ram Pickup Truck.

by Todd J. Ortolani & Vanwijak (Kehm) Ewosakul

Faculty advisor: Dr. Alan K. Karplus

This is a brief collection of information and images from the projects
completed by Todd and Kehm during the Spring semester 1997 in the Department
of Mechanical Engineering. The baseline condition of the pickup was evaluated.
Several conditions including aftermarket devices were simulated in a water
tunnel. A new cap design was developed and tested. The new cap reduces
drag by 30% and provides for a 3 mpg reduction in fuel consumption.  
This project won the 1997 American Society
for Mechanical Engineering Young Design Engineer's Paper Competition
International Award.     

<OL>
[*]Solution to Did You Know?</LI>

[*]Drag Coefficient</LI>

[*]Baseline condition&nbsp;&nbsp;&nbsp;
Cd = 0. 432 (without mirrors)&nbsp;</LI>

[*]Square Cap&nbsp;&nbsp;&nbsp;
Cd = 0. 480&nbsp;&nbsp; 11. 11% Increase in drag</LI>

[*]Replace tailgate with a cargo net &nbsp;&nbsp;
Cd = 0. 461&nbsp;&nbsp; 6. 71 % Increase in drag</LI>

[*]Removed Tailgate&nbsp;&nbsp;&nbsp;
Cd = 0. 447&nbsp;&nbsp; 3. 47% Increase in drag</LI>

[*]Lowered Tailgate &nbsp;&nbsp;&nbsp;
Cd = 0. 414&nbsp;&nbsp;&nbsp;&nbsp; 4. 17% Decrease in drag</LI>

[*]Tonneau Cover &nbsp;&nbsp;&nbsp;
Cd = 0. 381&nbsp; 11. 81% Decrease in drag</LI>

[*]New Cap Design&nbsp; Cd
= 0. 302&nbsp;&nbsp; 30% Decrease in drag</LI>
[/list=a]

At Western New England College, the study of engineering
is about solving real-world problems.

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Barry Horner
Lake Forest
Orange County, Ca

2001, SLT+, ETH, 6 speed, White quad cab, short bed, Sport, 2wd , 3:54 anti spin, Camper Special with trailer tow, 16x8 Forged Aluminum with 265x75 tires, Fog lights, Audio controls steering wheel mounted, AM/FM cassette with CD, Travel Convenience group, Keyless entry with remote, Leather agate heated seats. Line-X bed liner. ARE LS 2 tonneau cover. Pillar mount boost and EGT. EDGE EZ and McLeod clutch.
 
What did the cap look like? When they say square cap are they talking about a regular truck cap like a leer. Some one told me there was some kind of Cap that made the truck look like a SUV like it dipped in the back. YUCK. You know those drag coeficients mean alot less at 40 MPH than 70. YEEEHAAAW

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2001 ETH/DEE ST 4X4 SPACE SHUTTLE
 
What an interesting topic. As for the cap issue, here's the link with pictures: http://mars. acnet. wnec. edu/~ehaffner/did.htm
This is the site of the two students and pictures of flow work with the ram. It's quite interesting. I just got back from a trip to Tahoe and this is what I can report. I fueled in Loomis, CA, just before we began to make the climb out of the Sacramento Valley up to Tahoe. Drove up to Tahoe, drove around, back down to Sacramento, up to tahoe, around Tahoe and back to Auburn, about ten miles above Loomis. Total Mileage 563. Total climbing around 18,000 feet. speeds up to 80 on the interstates and average 45 around the lake. Around 40 miles of this was in 4wd. Gallons filled at auburn 31. 2 good for 18mpg. I am plenty impressed with this result. So, Jp. I applaud your mileage results and you patience acheiving the results. Keep us posted on your efforts

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01. 5 ETH/DEE QC, 2500 4X4, 3. 54 Everything but leather
 
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Ranger Dick> I LIKE IT! I think that would be something I could make. You know I was thinking that would be good for 1/4 mile times but the added weight may just cancel the drag reduction benefit, plus if I have some kind of funny thing like that on my truck people will be concentrating on it and not worry about my speed. I could put some solar panels on it and put "SOLAR TRUCK" stickers around my truck and they will understand why I am going slow! They may even wave #ad


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2001 ETH/DEE ST 4X4 SPACE SHUTTLE
 
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