What's the tank vent mod?
I always fill mine up 'til I could touch the fuel....right to the top so I can get an accurate mileage calc. Usually that's around 17.5 driving around town here.....high 18's on the highway, empty, at 65mph.

 

Yeah, I'd like to know what that tank vent mod is too! Let's see, 3 gallons x 20 mpg. Nuts, only 60 miles. I still can't make it to 800 miles.

 

TOP.....tank vent mod ???.....anyone?

 

I've gotten 38 gallons in my '05 before (don't ask how I came to find THAT out!) without the tank vent mod... did take a couple minutes, though.

 

Looks like I might be starting a new thread titled "800mile club"!!! Right now on this very tank full, I have gone 448mi on just a little more than a 1/2 tank. I haven't been doing all the cheatn' stuff to get there either. I've done some excited acceleration, ideling, and 350mi. of 70-75mph freeway driving etc. I'll be cheating from here out. Just maxed the tire pressures, and i will keep the a/c use to a minimum with windows up at night. Looks to be the best mpg to date.

 

streetsmoker - I can't remember the exact numbers, but when I top the tank off (which takes more than a few minutes ) the fuel gauge will not start moving from ABOVE full until I have like 120 - 140 miles from what I remember. When I get near the 1/4 tank mark, I bet it barely went another 100 miles. My fuel gauge in the truck and Corolla are anything but linear.

I hope you make 800 miles, but I bet your fuel gauge starts dropping fast. Good luck.

- JyRO

 

Thats what i kept thinking yesterday driving from Commerce, GA to home. I didn't even max out the fill-up yesterday. I'll keep you posted. Needless to say, I will be running down well past 0-DTE to try and make it, I'll just keep an extra can of fuel and watch the fuel pressure gage religously just in case.

 

My top now is 742 but I sorta cheated and topped the tank before (all the way up to the overflow tube in the filler neck).
Now That I know there is a club I'm gonna have to through a jerry can in the back and go for the record!
I don't usually start thinking about a fuel pump til I reach the 600 mile mark and reset the odo every tank.

 

680mi. with about 1/4 tank left. Should be interesting. Now I just wish I had topped off the tank to the filler neck and got that extra 2gal.

 

722mi. and counting with 26mi on DTE by overhead. May not make it to 800, but somewhere between 770-790mi.

 

you can do a search for more info... but here's the site for your convenience... great mod.. I can get 700+ per tank but I never get past 680. I'm usually < 1/8 tank when I past my regular pump, so I just fill it up then cause I wouldn't make it back with my commute.

http://www.innertruck.com/ventkitarticle/

 

29427 ODO
799.2 Trip
36.619 Gallons to fill
26 Overhead Mpg
21.82473579 Actual Mpg
76 station @ Coeurd ' Aleney ID 8/29/2006 refill coming from Casper WY
3.399 Price
65 mph stage 2 Quad box
30 DTE overhead
$124.47 Price to Fill Ouch!!!

No fuel light on...Priceless

 

guess i dont count my sixty gal tank gets twelve hundred miles before i sweat but then again its a sixty gal tank

 

my truck gets 1200 miles to a tank oops its a 60 gal tank mybad at 1199 i start sweating

 

The math says you need to get about 23mpg to make the 800 mile mark. Seems within reach for someone patient enough to drive very conservatively primarily on the highway for nearly a thousand miles. On another topic...

I understand the fact that the vp uses the fuel to cool itself, but has anyone ever measured how much the fuel temp increases by running on say 1/8 tank of gas? Or has anyone calculated how much electrical power the vp uses and therefore how much cooling is required? I find it hard to imagine that a relatively low power motor could significantly increase the heat of only 2 gallons of fuel that sloshes around in a metal gas tank which has a huge surface area in which to dissapate heat. I may do a very primitive test to check the ambient fuel temp from before I drive and then run it low and check the temp again. Would need to do this several times and reverse the times of day to account for normal heating and cooling trends throughout the day.

Does anyone know the power requirements of the vp, or at least know what amperage fuse it is on? Seems like a good premise for a mythbusters episode.