Announcement

Collapse
No announcement yet.

Mpg

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Mpg

    what is the expected MPG for a 1972 TR6?

  • #2
    Welcome to 6-Pack, Bob. If you mean in stock condition and softly driven, I would think you can expect 26 to 28 mpg.
    Is your car stock? Are you new to the LBC world?

    Cheers,

    Wolf
    76 TR6 CF58170UO (The Lady)
    72 TR6 CC80068UO (The Slut)
    68 TR250 CD4893L (retirement project)

    Comment


    • #3
      I never got much more that 20 overall MPG with 73 and stock 4-speed. I can get close to 30 MPG on freeway driving withe OD box however.
      And welcome Bob!
      CF1634U+O Pimento/Chestnut
      2nd owner, since 1975
      Soon to be in Fair Oaks, CA

      Comment


      • #4
        FWIW, when my car was closer to stock, I got 23 mpg on a road TRip to a VTR Convention when the top was down, 27 mpg on the same TRip with the top up. On my most recent TRip to VTR 2018, I was getting around 22 mpg from a highly modified engine, and none of the drive was on Interstate highways.

        IMO, the real question that you should be asking is how many smiles per gallon do you get in a TR6. In my case, it is 1 huge, continuous smile.
        Last edited by Elwood; 08-02-2018, 02:47 PM.

        Comment


        • #5
          Thanks. I’ve had this car since 1977 and never bothered to check the mileage I was getting. Then, last weekend I went on a extended trip and found out I was getting 30 MPG. I was surprised.

          Comment


          • #6
            Originally posted by Bob Giles View Post
            Thanks. I’ve had this car since 1977 and never bothered to check the mileage I was getting. Then, last weekend I went on a extended trip and found out I was getting 30 MPG. I was surprised.
            30 mpg IS impressive! (U.S. gallons, I assume?) Of course a lot depends on how extensive the miles were and how many fill ups were included. I've always reset my trip meter to 000 after a fill up. Around the very congested Los Angeles, it hung around 15 mpg, and I rarely get into the (Toyota's) 5th gear. Anxious to see how far my new 15 gallon tank would carry me without having to stop for gas, I took off on a trip to northern Idaho, a distance of 1,400 miles. Still not trusting the gas gauge, showing a tad more than 1/4 tank, I stopped about every 250 miles of mainly highway driving along rte. 395 North. It never took more than 10 gallons. After the third "fill up" I was now confident that I could push farther down the road, if needed or convenient. To shorten this story somewhat, it showed after completing the trip, that 27.9 mpg was the result. And the best that I will probably ever see at (sort of) legal road speeds!

            Dick

            Comment


            • #7
              My car is pretty heavily modified (engine and other) and has overdrive. I’ve found that I get pretty interesting differences in MPG on long trips based on a couple of variables-



              Top up, much better gas mileage

              Top down, much worse gas mileage

              60-65mph cruising speed in OD , very good gas mileage

              75mph + cruising speed, gas mileage falls off very quickly



              I have yet to take a long trip with the HT on, so I wonder what that would do to gas mileage?
              1973 TR6 – BRG with beige interior, custom LED lighting
              Hardtop, OD, Rollbar, 15”Koenigs
              Bored, balanced and polished motor with Kastner/TSI S2 Cam
              Header, custom exhaust, custom alternator, e-fan
              Lowered, poly suspension, Konis and rear anti roll-bar
              www.coventrysfinest.blogspot.com

              Comment


              • #8
                Originally posted by oppositelocksmith View Post
                [FONT=Calibri]
                I have yet to take a long trip with the HT on, so I wonder what that would do to gas mileage?
                Your mileage should be similar and maybe slightly better than with the soft top up.

                Comment


                • #9
                  All other things being equal, like overall gearing including tire diameter, optimum fuel/air mixture regardless of the fuel system, etc. the mpg comes down to valve timing. The more duration or overlap the lower the mpg, like it or not - this is why we now have V-TEC which can give a lot or a little depending on the ask.

                  In 1978 when I looked at a '69 TR6 with O/D the seller assured me " It always got 34 mpg on the highway ". That is credible given the speed limit then and the 10/50/50/10 cam original to these and '250s, which have less duration than any other of the factory cams. I got 30 mpg X-country that Christmas coming back to Cincinnati from Oakland CA in my '250 without O/D, same cam.

                  My current driver has the CP 35/65/65/35 cam and the best I've gotten with it is 27 mpg, with O/D. I'm lucky to get 20 mpg overall these days, but there's precious little highway use in the mix except for 80-90 mph service ( the going rate around these parts - don't want to get run over! ). For reference, 27 mpg here correlates to 32.4 mpg Imperial, and few P.I. owners claim that kind of mileage ( though the CR cars theoretically could do even better if their P.I. systems were tuned to the gnat's eyebrow as the cams in these have less duration ).

                  I think anything over 20 mpg overall on these 6-cyl engines from the era is something to be proud of.

                  Tom

                  Comment


                  • #10
                    I have had 2 TR6's for a combined 40 years. I have never gotten less than 20 mpg or more than 24 mpg on mixed local and freeway driving (w/OD). I have not driven either car on long road trips although the PO of my current car told me that he drove it between Annapolis and naval stations in Great Lakes (MI) and Orlando without incident.

                    Comment


                    • #11
                      I find that the last 1/4 tank goes very fast due to the taper, it's usually the look for a gas station warning. Mine when on the highway on a mostly original engine with OD will get in the 30 range.....if I keep myot out of it
                      72 Pimento w/overdrive

                      Comment


                      • #12
                        My fuel gauge stops at half a tank, so I watch the trip odometer to think about refueling at 190 miles, and certainly refuel at not more than 220 miles. So far, so good!
                        Brian Cunningham
                        1973 CF4325U Overdrive has been added
                        "Liz's" Plate is: T-AH6

                        Comment


                        • #13
                          Originally posted by boulderroller View Post
                          My fuel gauge stops at half a tank, so I watch the trip odometer to think about refueling at 190 miles, and certainly refuel at not more than 220 miles. So far, so good!
                          Should be a faulty sending unit ( in the tank ).

                          Tom

                          Comment


                          • #14
                            My own "range" is approximately the same as that of the TR6, so I have a real "fail-safe" system telling me when to refuel.
                            1976 TR-6 BRG - CF57239U
                            Carbs by Poolboy
                            Rear Camber Kit, Rear Hubs by Goodparts
                            Gear Reduction Starter by TSI
                            Distributor by British Vacuum

                            Comment


                            • #15
                              I just returned from attending the All Triumph Drive In at Salem, Oregon. From San Diego it was about 1,200 miles each way and my car has hard top, overdrive, mild cam, and triple Strombergs. Los Angeles traffic yielded about 22MPG and the open road got has high as 28MPG (speed of 70-75).
                              Mel Hildebrandt
                              Escondido, CA
                              CF24749UO
                              1974 Carmine, OD, Hard Top, Triple ZS

                              Comment

                              Mpg

                              Collapse

                              Search

                              Collapse

                              There are no results that meet this criteria.

                              6-Pack Statistics

                              Collapse

                              Topics: 37,391   Posts: 469,585   Members: 8,136   Active Members: 307
                              Welcome to our newest member, rschlemm.

                              Upcoming Events

                              Collapse

                              Working...
                              X