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Smashed past 50mpg!

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  • Smashed past 50mpg!



    As it says, I was on my way back from lake michigan. Doing 10 under behind trucks on the 70mph interstate. Its almost hard to believe but hey, Im happy. I havent even done any mods to the car and it even sits higher than stock which hurts aero.
    91GL BP/F3A with boost
    13.79 @ 100, 2.2 60' on 8 psi and 155R12's

  • #2
    Awesome!!

    I got very similar mpg once... we were moving from PA to VA, almost 500 miles. I had my car loaded down (rear tires were in the fenders!), my brother and I in the front seats, a bunch of boxes in the back, and 3 bikes on a bike rack on the hatch. I was following my dad in a u-haul truck, at about 55mph, all night long. He was going slow b/c the brakes weren't working right on the truck. I got 53 mpg! when i got from PA to VA and still had a little gass left (no fillups) i was worried even though I was indicating still a little left... no need to worry!
    ~Nate

    the keeper of a wonderful lil car, Skeeter.

    Current cars:
    91L "Skeeter" 170k, Aspire brakes, G15, BP, Advancedynamics coil overs, etc. My first love.
    1990 Kawasaki Ninja 250 - my gas saver, 60+mpg - 40k
    2004 MotoGuzzi Breva - my "longer range" bike - 17k

    FOTY 2008 winner!

    Comment


    • #3
      Cool

      My Best tank is 56.67.....on gassavers.org...
      1986 Comp Prep SVO Mustang(1 of 83) Four cylinder turbo! (Think first Fox body "R" model!)
      1995 F-150 Extra Cab and it was free!
      1991 Festiva L, Surf Blue with A/C
      1995 Jeep Cherokee 2wd 5 speed 4.0 and it was free!
      1993 Aqua Festiva and it was cheap!
      1994 Brake Swap and it was cheap!
      1969 Ford F100 Big Block Ranger and it was free! (coming 2/12)

      Comment


      • #4
        Nice. Ive still got bad wheel bearings, I can hear them howling a bit now. Ive also got a bad passenger cv joint. I need to get that all fixed and then I wanna do some aero mods.

        Hows that SVO of yours do? I was getting about 25-30 average in my turbo coupe, and have gotten as much as 34 mpg on the highway. Now Ive got a motor with a roller cam and t3/t4 to swap in that might do even better now.
        91GL BP/F3A with boost
        13.79 @ 100, 2.2 60' on 8 psi and 155R12's

        Comment


        • #5
          I wouldn't think that sitting higher would necessarily hurt the aero. It more or less depends on how smooth the under-body is. An air-dam only helps to keep friction from a rough under-body down.. Sitting higher might even be an advantage.

          I've been thinking about adding a engine compartment body pan to mine. Don't know if it's worth it to a car that already gets good mileage, but it might aid acceleration and ride comfort a bit.

          Comment


          • #6
            SVO is great....hardly driven. Sold my '86 Turbo Coupe 2 years ago with 251,758 miles on it!! Best tank of 32mpg in the 'Bird. The SVO gets around 25 mpg. One thing about driving a Festiva daily...it makes the SVO feel like a rocket when I do drive it!! 2.3 turbos are awesome little motors....
            1986 Comp Prep SVO Mustang(1 of 83) Four cylinder turbo! (Think first Fox body "R" model!)
            1995 F-150 Extra Cab and it was free!
            1991 Festiva L, Surf Blue with A/C
            1995 Jeep Cherokee 2wd 5 speed 4.0 and it was free!
            1993 Aqua Festiva and it was cheap!
            1994 Brake Swap and it was cheap!
            1969 Ford F100 Big Block Ranger and it was free! (coming 2/12)

            Comment


            • #7
              Oh yeah...my SVO has been on the cover of Muscle Mustangs & Fast Fords....
              1986 Comp Prep SVO Mustang(1 of 83) Four cylinder turbo! (Think first Fox body "R" model!)
              1995 F-150 Extra Cab and it was free!
              1991 Festiva L, Surf Blue with A/C
              1995 Jeep Cherokee 2wd 5 speed 4.0 and it was free!
              1993 Aqua Festiva and it was cheap!
              1994 Brake Swap and it was cheap!
              1969 Ford F100 Big Block Ranger and it was free! (coming 2/12)

              Comment


              • #8
                The best I could get out of mine was 52.4 MPG.Thats with not following anybody.

                Comment


                • #9
                  Originally posted by gotrootdude View Post
                  I wouldn't think that sitting higher would necessarily hurt the aero. It more or less depends on how smooth the under-body is. An air-dam only helps to keep friction from a rough under-body down.. Sitting higher might even be an advantage.

                  I've been thinking about adding a engine compartment body pan to mine. Don't know if it's worth it to a car that already gets good mileage, but it might aid acceleration and ride comfort a bit.
                  Its pretty much been tested and proven on ecomodder that lowering helps mpg. Less frontal area, and bellypans do help as well. Theres a guy getting 27+ mpg out of his F350 PSD. He has a 4/6 inch drop and lots of other mods.
                  91GL BP/F3A with boost
                  13.79 @ 100, 2.2 60' on 8 psi and 155R12's

                  Comment


                  • #10
                    Just awesome!

                    Best carb MPG: 50 on the nose
                    Best EFI MPG: 52 and some change

                    Somehow they can match metro 1.0L 3-cyl...and I love em for it!...

                    Brenton
                    Because....45 MPG.

                    Comment


                    • #11
                      i got near 60 in my 1990 L efi between bakersfield and chico 2 years ago, real tired and cruising along at 55-60, roughly 2500 to 2800 rpm, i went almost 500 miles on 8 gallons of fuel, stopped because i thought the gauge broke, my subaru is an excellent example of modern aero, its the 2.5 turbo model, and ive reflashed it for a more aggressive tune, still can get a steady 26 mpg highway out of it at a steady 70. it has a pan across the entire engine bay, plastic deal, access door for the oil, and panels on the floorpan to either side of the driveline tunnel, along with a rear pan that comes out flush with the rear diff, this also makes it noticeably quieter than other cars in its class that dont have these items. im looking into making a full pan for my latest festiva, just haveing a difficult time figureing out how to direct air thru the center tunnel so the exhaust doesnt cook the interior and i dont disrupt flow thru my radiator, dont really want to vent the hood on something with only 70 hp.
                      is not sposed ta do that...
                      05 subaru legacy gt
                      1991 nissan nx2000(almost awesome as a festiva, my first failed mtx)
                      1988(?) festiva LX 5spd (rescued from crusher,aspire swap done, working on turbocharging the 1.3...)

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                      • #12
                        you could do the hing mod like matt did to his white car
                        Neil

                        Jesus loves me. This I know.

                        93 L track prep in progress
                        88? Parts car-sold
                        91 L B6-me f25mr-soon to be ???
                        86 b2000- pisses of HOA-sold
                        1997 k1500 suburban- kid hauler/GAS hog

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                        • #13
                          have to look that up thanks, the one main idea ive been looking at is ducting the radiator along the hood and out at the windsheild, ill have to space the hood from the hinges most likely, but i know it works extremly well because my eclipse was done that way when i bought it, the hot air also keeps the windsheild from fogging or icing over as easily, im also looking at how to shape the entry and exit on the center tunnel so it draws air, i know i need high pressure on the engine side and low pressure on the axle side, but im not sure how to do that yet.
                          is not sposed ta do that...
                          05 subaru legacy gt
                          1991 nissan nx2000(almost awesome as a festiva, my first failed mtx)
                          1988(?) festiva LX 5spd (rescued from crusher,aspire swap done, working on turbocharging the 1.3...)

                          Comment


                          • #14
                            Originally posted by bhazard View Post
                            Theres a guy getting 27+ mpg out of his F350 PSD.

                            Bet he can't get 27MPG going over 11,000 feet of up & down mountain passes!
                            Last edited by litesong; 09-18-2008, 02:37 PM.

                            Comment


                            • #15
                              Never know man, those hypermiler guys have crazy ways to get every mile out of every drop of fuel.
                              91GL BP/F3A with boost
                              13.79 @ 100, 2.2 60' on 8 psi and 155R12's

                              Comment

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