Fuel Milage

bamboo · #1 Sun, November 1st, 2009, 08:31 PM

For you OBS'ers how many Miles per tank? I'm only seeing 220miles per tank, Which is 15Gallons I think

want to try and improve mileage if can.

figure I post it here instead of making a new thread

ChuckD · #2 Mon, November 2nd, 2009, 10:15 PM

I switch over at 1/4 tank and generally at 250-275 in town driving. We will see what happens when that big brown truck comes tomorrow or the next day. The best I have gotten in town was 22.8, I average 18.5-19.5 most of the time. If my OD is acting up as it has been lately again then I am down to around 15 in town. My best on the highway was 22 and I was driving 75-85 across TX, with an 800 lb. jet ski in the back. Towing boats up to Vegas I get 16, towing the camper up the mountain and get 17. Best advice I can give on getting good mpg's is stay out of boost and stay under 2K rpms. Take off easy at stop lights or signs and let out of it alot sooner when your coming to one. Just doing that you will see an improvemont in mpg's.

bamboo · #3 Tue, November 3rd, 2009, 12:37 AM

Well Im getting like 14.5 mpg

One problem is the new set of tunes I got are really touchy, Driveability has gone down so I cant control the throttle nearly as much as I'd like to But all in due time
I'm hoping it can be smoothed out with tuning, I sometimes wonder if my pedal is messed up or something..

What kine gears you have?

***cleatus12r*** · #4 Tue, November 3rd, 2009, 05:17 AM

Bamboo,

Bill usually writes programs that feel fairly "stockish" down low.

Have you tried adjusting the idle validation switch detent?

Try this.....

Push the accelerator pedal down very slightly and slowly with your hand until you hear an audible click. (BTW, this only works for old body style trucks). If you have to push the pedal down more than 1/8" or so before you hear the click, you need to "adjust" the switch detent plate. This immensely helps the drivability of the '95 to '97 trucks.....especially while "chipped".

ChuckD · #5 Tue, November 3rd, 2009, 10:59 AM

I got 3.73's. Cody I am going to do that today on mine. Thanks for the tip.

***88Racing*** · #6 Tue, November 3rd, 2009, 12:18 PM

So Cody
Which way do you adjust the plate? More or less than an 1/8?

Just wondering?
Lars

bamboo · #7 Tue, November 3rd, 2009, 11:53 PM

Thanks Cody, Bill mentioned the stockish programs, I had him adjust it some because living on a bumpy road I could hardly keep it at a smooth RPM
so I'm not sure what he has tweaked that might be different, How driveable are your trucks with chips +mods ? When the turbo lights do you really have to be careful where your foot is on the pedal? (how far down)

will check out the switch in the morning

Chuck, Where did you get 373's and how much $-$

Wollffy · #8 Wed, November 4th, 2009, 12:41 AM

Quote:

Originally Posted by cleatus12r

Bamboo,

Bill usually writes programs that feel fairly "stockish" down low.

Have you tried adjusting the idle validation switch detent?

Try this.....

Push the accelerator pedal down very slightly and slowly with your hand until you hear an audible click. (BTW, this only works for old body style trucks). If you have to push the pedal down more than 1/8" or so before you hear the click, you need to "adjust" the switch detent plate. This immensely helps the drivability of the '95 to '97 trucks.....especially while "chipped".

Where is this switch detent plate located?

ChuckD · #9 Wed, November 4th, 2009, 02:16 AM

If you look at the top of your pedal you will see 2 wire connectors. The top one at the spring is the TPS the lower one is the one he is talking about. You will see a little plate come off to the drivers side and behind it is a button. You adjust it by persuasion.

Wollffy · #10 Wed, November 4th, 2009, 09:02 AM

ok, thanks i will have a look at that now...