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  • #1

    Under 2k (surprising results)

    I did a little expirement over the last couple weeks. I filled my tank with $20.00 worth of gas (93) and drove it normally like I always do and averaged 90 - 98 miles before refueling.

    Next, I refilled my tank with the same amount and same gas. This time I would make sure I would always skip-shift from frist to fourth off the line and stayed under 2k rpm while shifting. By doing this I went from averaging 90 - 98 miles before refueling to 115 - 120 miles before refueling again. What a difference skip-shift and sixth gear can do!
    Hercules



    2008 Sunburst Metallic HHR LT
    Tags: None
  • #2
    Wow, I think I may wanna stay stock, ha ha. I'm gettin 210-230 miles per tank with the new gears, used to be 230-250 miles with the 2:73.
    Richard Harvey Jr.
    '94 T/A LT1 (stock) - SOLD

    Comment

    • #3
      I regularly get about 250 miles on a tank - you sure there is not something wrong with yours?
      Silver 02 WS-6, 6 speed, Corsa cat-back, SLP lid, K&N filter, BMR STB, !CAGs, Lou's short stick, MSD wires, MTI "Hammer" cam, ASP underdrive pulley, Hooker LTs, Hooker ORY, Comp 918s, TR pushrods, UMI Sfcs, UMI LCAs, NGK TR55s, Hotchkis springs



      Dyno'd 4/24: 330.9 RWHP/ 344.8 RWTQ (Before cam, headers, and pulley)

      Dyno'd 5/1: 383.5 RWHP / 380.5 RWTQ (393 actual RWHP)

      Comment

      • #4
        This is just $20 in gas guys, not a full tank. I am guessing in your area Taso that gas is around $2.50 per gallon. So with $20 you are putting in 8 gallons and averaging 11-13 mpg. Not to bad with 3:73. Then when you went to skip shift it jumped to aroung 15 mpg. Not bad!!! A full 15 gallon tank would then take you the 220-230 others are talkin about.
        Life is not a journey to the grave with the intention of arriving in a well preserved body, but rather to skid in broadside thoroughly used up and totally worn out, loudly proclaiming......WOW WHAT A RIDE!!!

        Comment

        • #5
          Good point - missed that when I read it!
          Silver 02 WS-6, 6 speed, Corsa cat-back, SLP lid, K&N filter, BMR STB, !CAGs, Lou's short stick, MSD wires, MTI "Hammer" cam, ASP underdrive pulley, Hooker LTs, Hooker ORY, Comp 918s, TR pushrods, UMI Sfcs, UMI LCAs, NGK TR55s, Hotchkis springs



          Dyno'd 4/24: 330.9 RWHP/ 344.8 RWTQ (Before cam, headers, and pulley)

          Dyno'd 5/1: 383.5 RWHP / 380.5 RWTQ (393 actual RWHP)

          Comment

          • #6
            I get 10 MPG.
            97 Chevy 'Raro Z28 M6- Ported & Polished LT1 heads,beehives,1.6/1.94 valves, 226/231 custom cam,K&N FIPK, 94-95 BBK shorty's,ORY,Magnaflow Catback,no cats,BMR LCA Relocation Brackets,Lower Control Arms,Adjustable Panhard Bar,Eibach Pro Kit,SPEC Stage 1,Walbro 255 Fuel Pump,30LB Injectors,Pro 5.0,Short stick,MSD 8.5's,NGK TR55's,LT4KM

            01 Honda CBR600 F4i-Two bro's,Corbins,SS brake lines

            Comment

            • #7
              Originally posted by RyanB58
              This is just $20 in gas guys, not a full tank. I am guessing in your area Taso that gas is around $2.50 per gallon. So with $20 you are putting in 8 gallons and averaging 11-13 mpg. Not to bad with 3:73. Then when you went to skip shift it jumped to aroung 15 mpg. Not bad!!! A full 15 gallon tank would then take you the 220-230 others are talkin about.
              You hit it dead on.
              Hercules



              2008 Sunburst Metallic HHR LT

              Comment

              • #8
                Originally posted by RyanB58
                This is just $20 in gas guys, not a full tank. I am guessing in your area Taso that gas is around $2.50 per gallon. So with $20 you are putting in 8 gallons and averaging 11-13 mpg. Not to bad with 3:73. Then when you went to skip shift it jumped to aroung 15 mpg. Not bad!!! A full 15 gallon tank would then take you the 220-230 others are talkin about.

                Not bad...what???

                Something is definitely not right here. I'm getting no less than 17 mpg (typicall about 20 if it's all highway). My set-up, while not radical, consists of 4.10's and many bolt-on/air in/out improvements. I've dynoed at about 288 hp/309 ft/lbs to the wheels. Something sounds off with 10 mpg. Have you had the vehicle checked? You're probably overly rich. Just my thoughts...
                Al 96 Ram Air T/A
                Mods: Build # 784 * Hotchkis STB * SFCs * Borla cat back w/QTP cut-out * AS&M/RK Sports Mid-length headers w/single CAT * Koni SA shocks on lower perch w/ lowered rear * Strano Hollow front & rear antisway bars * 1LE front/rear springs * 1LE aluminum driveshaft * Strange 4.10 gears w/ Zexel Torsen diff. * ARP bearing cap studs & aluminum diff cover* J&M Hotpart poly/poly rear LCAs and poly/poly panhard bar * RAM Powergrip clutch w/ LT4 PP and RAM billet Al flywheel * C5 Z06 brakes * C6 Z06 wheels * Spohn T/A * Spohn DS Loop * fully custom interior w/ custom audio

                Comment

                • #9
                  Originally posted by Al 96 Ram Air T/A
                  Not bad...what???

                  Something is definitely not right here. I'm getting no less than 17 mpg (typicall about 20 if it's all highway). My set-up, while not radical, consists of 4.10's and many bolt-on/air in/out improvements. I've dynoed at about 288 hp/309 ft/lbs to the wheels. Something sounds off with 10 mpg. Have you had the vehicle checked? You're probably overly rich. Just my thoughts...
                  I think my foot has a little too much lead in it, I'll get it looked at
                  97 Chevy 'Raro Z28 M6- Ported & Polished LT1 heads,beehives,1.6/1.94 valves, 226/231 custom cam,K&N FIPK, 94-95 BBK shorty's,ORY,Magnaflow Catback,no cats,BMR LCA Relocation Brackets,Lower Control Arms,Adjustable Panhard Bar,Eibach Pro Kit,SPEC Stage 1,Walbro 255 Fuel Pump,30LB Injectors,Pro 5.0,Short stick,MSD 8.5's,NGK TR55's,LT4KM

                  01 Honda CBR600 F4i-Two bro's,Corbins,SS brake lines

                  Comment

                  • #10
                    Originally posted by Al 96 Ram Air T/A
                    Not bad...what???

                    Something is definitely not right here. I'm getting no less than 17 mpg (typicall about 20 if it's all highway). My set-up, while not radical, consists of 4.10's and many bolt-on/air in/out improvements. I've dynoed at about 288 hp/309 ft/lbs to the wheels. Something sounds off with 10 mpg. Have you had the vehicle checked? You're probably overly rich. Just my thoughts...
                    Al is absolutely right. 11-13 MPG on average is unusually bad for an LT1....unless your foot is on the loud petal at all times. Something is not right. You are probably running pig rich. You could most likely kill two birds with one stone by getting a performance tune. Much, MUCH better MPG, and some extra HP to boot.

                    Comment

                    • #11
                      Well my car was tuned by the performance shop who did my M6 conversion. I had them test my fuel injectors about a year ago and they were fine. I also had my fuel pump replaced in October.
                      Hercules



                      2008 Sunburst Metallic HHR LT

                      Comment

                      • #12
                        Ive gotten over 20 mpg on the highway. Took a trip to Annapolis Maryland from Rochester, NY and averaged 20-23 mpg at 75-80 mph, 6th gear, A/C blasting.......around town, now thats another story!
                        96 WS6 Formula: Ram Air, 383 Stroker, Ported LT4 Heads and Manifold, 1.6 Crane Rollers, 58MM T.B., AS&M Headers, Borla Exhaust, Meziere Elec. H2O Pump, Canton Deep Sump Oil Pan, 100 HP OF TNT N2O!! , T56 Conversion w/ Pro 5.0 shifter, SPEC Stage 3 Clutch, Hotchkiss Subframe Conn., Lakewood Adj. Panhard Bar, Spohn Adj. LCA's, BMR Adj. T.A., Custom 12 bolt w/ 3:73's, Moser Axles, Eaton Posi, Moser Girdle
                        11.6 @ 123mph (1.6 60' - getting there )

                        Comment

                        • #13
                          We averaged 29 MPG last spring when we drove to Key West.
                          Tracy
                          2002 C5 M6 Convertible
                          1994 Z28 M6 Convertible
                          Current Mods:
                          SLP Ultra-Z functional ramair, SS Spoiler, STB, SFCs, Headers, Clutch, Bilstein Shocks, and TB Airfoil. 17x9 SS rims with Goodyear tires, 160F T-Stat, MSD Blaster Coil, Taylor wires, Hurst billet shifter, Borla catback with QTP e-cutout, Tuned PCM, 1LE Swaybars, 1LE driveshaft, ES bushings, White gauges, C5 front brakes, !CAGS, Bose/Soundstream audio, CST leather interior, synthetic fluids

                          Comment

                          • #14
                            Originally posted by TraceZ
                            We averaged 29 MPG last spring when we drove to Key West.
                            dang!! HAHAHA!!! 27 is my best...I said it once and I'll say it again, you guys that get 11-13 mpg...I don't see how y'all do it. I get at least 380 per tank...at least.

                            Christopher Teng

                            1999 · A4 · 3.73's · Auburn LSD · Whisper Lid · K&N · Pacesetter Headers/Y-pipe
                            Magnaflow Cat & Catback · MSD Coils/Wires · Bosch +4 Plugs · EGR Bypass
                            B&M SuperCooler · 160* Stat · Descreened MAF · SLP CAI · BMR STB & SFC
                            Strano Sways · Eibach Springs · Bilstein HD Shocks · Hawk-Pads · Brembo Blanks
                            Speedlines · Nitto 555s · Texas Speed Mail Tune

                            Lots of Weight Savings · Stubby Antenna · Corbeau TRS · Zaino · 273K

                            F-Body Dirty Dozen

                            Comment

                            • #15
                              Tracy -

                              You drove the Z from Madison, WI all the way down to Key West? That must have been sweet!

                              Been to the Keys several times. I would love to take the Bird down there sometime, just cruising US-1 from Key Largo to Key West.

                              29 mpg is pretty darn good for any V8....
                              SOLD: 2002 Trans Am WS.6 - Black on Black - 6 Speed
                              SLP Loudmouth Exhaust
                              17K Miles

                              2005 Acura TL - Silver on Black
                              Navigation - Surround Audio - Bluetooth

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