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gas mileage

Posted: 24 Oct 2007 02:31
by hoosierdaddy88
got a 75 TR7 and was wondering what kind of gas mileage i could expect

Posted: 24 Oct 2007 02:40
by nick
My 79 gets about 29mph when used mostly on the hiway. I checked it over 3 fill ups. However, stop and go will be much lower. Maybe 25 or 26. Also the tank is hard to top off so if you are checking milage be sure you do it over several fill ups. And there is some error in the speedo on my car so my milage may be somewhat less than stated.

nick

Posted: 24 Oct 2007 03:22
by Hasbeen
In my 7, when I'm cruising around, playing music on the radio, &
admiring the scenery, I can get as high as 35 MPG.

However, when the hoon in me gets to the top, & I'm playing my music
on the gearbox, blasting [in a 7?] out of corners, & using the
scenery for braking markers, it can get down to 26 or so.

Drive the same way in the 8, & I will get from 28 to under 15 MPG,
but it realy can blast out of corners.

Hasbeen


PS. Mine are imperial gallons, a bit bigger than those little
US ones.

Hasbeen

Posted: 24 Oct 2007 17:10
by rsamis
I'm only getting 16 mpg (imp.), but that's strictly city driving. I'll be taking her out for a 200 mile highway run on Sat[:D], so I'll report back.

Royal
76 FHC, 4-spd, dual Strombergs

Posted: 24 Oct 2007 18:15
by tr8coupe
[:D]15 mpg in town
25/29 mpg motorway
on a 4.8 litre[:D]
£4.50 per gallon lol


Image

Posted: 24 Oct 2007 19:10
by ObiRichKanobi
1980 DHC with FI:

about 25 mpg around town
about 31-32 mpg on highway, cruising 70-75

And I don't exactly drive her softly... [}:)]

1980 TR7 Spider, Bosch Jetronics EFI.

Posted: 24 Oct 2007 22:53
by Red
When I did Club Triumphs' Round Britain run last year (2000 miles, mainly 'A' roads), I averaged 31.5mpg, which sounds about right. It's the short hops through town that really kill your mileage, though - especially with a cold engine.

Garry

1976 2.0 (soon to be 3.5!)FHC
http://reds-tr7.blogspot.com/

Posted: 25 Oct 2007 01:35
by Hasbeen
TR8coupe, I thought the fuel consumption of our 4.6L, 280 BHP 8 was
a bit excessive. However, it appears that you are using a very
similar amount, in similar driving.
May be we both put too much weight on our right foot, when we sit
down.

Hasbeen

Posted: 25 Oct 2007 12:38
by Periwinkle
Hi All,

Gas mileage on my '80 stock engine runs about 29-30mpg on the highway and 22 about town.

Peri

Posted: 25 Oct 2007 23:30
by trwedgn
A note regarding my experience in topping off the tank. The first time I tried to fill my gas tank, I found the little hinged flap that admits only non leaded nozzles well down in the filler neck and just within reach. Because of the location, however, I was not able to put gas in the tank at anything other than a trickle or the nozzle would shut off. I didn't give the issue much thought and chalked it up to just another example of fine British engineering. as can be imagined, it took a long time at that rate to fill the tank and I generally just put in about five gallons and called it good. On one ocassion when preparing for a trip, I filled the tank until I could see gasoline in the filler neck. The car started fine but from then on refused to idle, stalling every time the clutch was depressed. When I got home, I opened the hood and tried to figure out what was wrong with my car. I hadn't at that point related the stalling to filling my car with gas. It wasn't until a couple of days later that I questioned if filling the gas tank could have caused the problem and I consulted my Bentley's manual. I didn't find any warnings on overfilling the tank but I did find a side view of the fuel system, which got me to thinking if fuel was all the way up in the filler neck then maybe it had been allowed to go other places in the fuel system that it wasn't supposed to. I removed the charcoal canister and found it to be about half full of fuel. After I dumped the gas out and replaced the canister, the car went back to working properly. I believe that overfilling the tank, and subsequently the charcoal canister, had an adverse effect on the vacuum system. By the way, I have since reached down into the filler neck and yanked the piece with the little flap on it back up to the top of the filler neck where it belongs.

Posted: 26 Oct 2007 21:00
by black_1980_tr7
I get 30MPG doing 67% hiway @ 80MPH, and 33% city stop/go traffic
with a 1980 stock EFI DHC (driven with the top down)
[8D]

Posted: 26 Oct 2007 21:13
by ngtf
I just drive it and enjoy it, I have no knowledge of miles per gallon. I rebuilt Eeyore purely to enjoy the fun of driving in whatever the weird British weather throws at us.

Gary

Eeyore rides again !!
Image
EOR14W - Persian Aqua 2L Dhc, Now rebuilt and looking lovely - Sprint engine being prepared!

Posted: 29 Oct 2007 18:47
by rsamis
<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by rsamis</i>

I'm only getting 16 mpg (imp.), but that's strictly city driving. I'll be taking her out for a 200 mile highway run on Sat[:D], so I'll report back.

Royal
76 FHC, 4-spd, dual Strombergs
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Made the trip to Athabasca Saturday. It was a perfect day for a fall drive, and the '7 gave no problems. My mileage went up to about 31 mpg - quite a difference! My registration expires at the end of Oct, and I'll let it lapse until spring. So just a couple of days of driving left![:(]

Luckily, my snowbird next door neighbour offered to let me keep the car in his garage while they're gone for the winter. So I can have it safe, warm and close by without giving up my own garage space for the winter car. My wife is worried that having the TR7 close by will distract me from my #1 project, working on our basement. I don't know how she would get that idea![;)]

Royal
76 FHC, 4-spd, dual Strombergs

Posted: 29 Oct 2007 19:41
by jeffremj
When I commuted in the TR7V8 and the TR7 16V, the half-yearly average for the V8 was 22mpg and the 16V, 25mpg. Same journey (50 miles a day), similar speeds. Summer for the V8 and winter for the 16V FHC.

Posted: 29 Oct 2007 20:58
by Beans
On this years Club Triumph's 10CR my (tuned) 8valve DHC averaged 31 mpg over nearly 2000 miles of all kinds of roads in Europe ...

Image

[:D] [:D] [:D] [:D] [:D] [:D]



<center>Image
<font color="blue"><i>1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</i></font id="blue"></center>