Gas Mileage?
- Thread starter roqueweiler
- Start date
- Status
The E-Bay 850 chopper with RH10 head, 32 mm Amals and peashooters got 50.58 mpg on the last tank, which included a gentle club ride yesterday of about 45 miles.
When in good nick the mega-mile Combat with the same pair of carbs and Dunstalls on balanced pipes will return 55 mpg--that bike has a 24-tooth gearbox sprocket and taller back tire--thrashing it will drop mileage 10-15 mpg.
I love these engines--hard to believe its basic design is nearly 65 years old--I've had a variant since the '62 650SS I bought in '64
Tim Kraakevik
kraakevik@voyager.net
When in good nick the mega-mile Combat with the same pair of carbs and Dunstalls on balanced pipes will return 55 mpg--that bike has a 24-tooth gearbox sprocket and taller back tire--thrashing it will drop mileage 10-15 mpg.
I love these engines--hard to believe its basic design is nearly 65 years old--I've had a variant since the '62 650SS I bought in '64
Tim Kraakevik
kraakevik@voyager.net
One important question that needs to be ask when discussing milage is whether or not your fuel contains ethanol. In my area, all gasoline contains 10% of the stuff; good for corn farmers, but bad for you. You will ALWAYS get noticeably fewer miles per tankful when burning an ethanol blend because ethanol contains fewer BTU's.
John
John
A few years ago I was running 105 octane race gas in my bikes, had a cheap source, I ran out of regular gas for the push mower. I used the race gas, got about 15 minutes more out of a tank that usually was empty after 30. Also got a noticable rise in rpm and temprature, and the bonus smell of burnt race gas.
- Joined
- Jul 25, 2010
- Messages
- 5,865
Beanol is the high tech world champs type little raceing plane supa doopa oil , the ' nitro ' Glows run syntetic or Castor or both
SIG , Cool power and KLOTZ (red oil) produce Castor . First Pressing . pressed oil not rolled ! ? :shock: :lol: :|
Available from good hobby stores . Pre 75 most model engines were Lapped Mehanite pistons in Steel Cylinders.
They wall become second hand dramatically quickly if NOT run on Castor lube .Modern stuffs Silicon Alumn &
hard chrome brass ( expanding with heat ) bore . A bit like nikasil . Grit will ruin it .
Castor SETS , left unflushed , run on Castor .After a few centuries sitting ( or Years ) the Oil will SOLIDIFY in the oilways
and on the components GLUEING them together . Boiling for a hour (or two) may free . Current trick is Boil in Anti Freeze ,
which cleans sparkling , disolves gunk and lubes componentry .
8)
p.s. Tink the sucker did about 45 mpg around town .Thinking someone living in the Wilderness would have HALF the running time on a engine , at the same milage , as on living in central New York , etc , where half its life is sitting at the lights .
No wonder they smoke it up occasionally . :|
SIG , Cool power and KLOTZ (red oil) produce Castor . First Pressing . pressed oil not rolled ! ? :shock: :lol: :|
Available from good hobby stores . Pre 75 most model engines were Lapped Mehanite pistons in Steel Cylinders.
They wall become second hand dramatically quickly if NOT run on Castor lube .Modern stuffs Silicon Alumn &
hard chrome brass ( expanding with heat ) bore . A bit like nikasil . Grit will ruin it .
Castor SETS , left unflushed , run on Castor .After a few centuries sitting ( or Years ) the Oil will SOLIDIFY in the oilways
and on the components GLUEING them together . Boiling for a hour (or two) may free . Current trick is Boil in Anti Freeze ,
which cleans sparkling , disolves gunk and lubes componentry .
8) p.s. Tink the sucker did about 45 mpg around town .Thinking someone living in the Wilderness would have HALF the running time on a engine , at the same milage , as on living in central New York , etc , where half its life is sitting at the lights .
No wonder they smoke it up occasionally . :|
- Joined
- Oct 19, 2005
- Messages
- 18,978
DO NOT put a FEW OZ of Benol in a Roadster size tank as that would be too much to take even in a IS tank. Work up from an Oz to start with till good ordor but not fouling plugs or lowering octane protection. Do no put in chain saw oil and work hard in tight brush full of caster oil smoke, ugh.
C'do mixtures are supposed to be lean enough that they need a choke or a tickle to start unless already primed just right. Harley's get 50 and above just like ours should.
Gearing of course matters. 20 T and above is nicer to cruise on except inside city traffic but at least sitting still in traffic on idle is the coolest state of running it will ever see, even if smokes up around you.
C'do mixtures are supposed to be lean enough that they need a choke or a tickle to start unless already primed just right. Harley's get 50 and above just like ours should.
Gearing of course matters. 20 T and above is nicer to cruise on except inside city traffic but at least sitting still in traffic on idle is the coolest state of running it will ever see, even if smokes up around you.
- Joined
- Jul 7, 2010
- Messages
- 300
Running name brand regular at the best price I can find. 54 mpg. The old beast protests a bit when I put the non ethanol premium in... go figure
- Joined
- Oct 8, 2007
- Messages
- 656
Niagara850 said:
We have to be aware that "gallon" in Canada, Australia and England is an Imperial gallon which is larger than the US Gallon and adjust miles per gallon appropriately.
Imperial gallon (≈ 4.546 l)
United States customary units there are the liquid (≈ 3.79 l)
So an Imperial Gallon is 1.2 times a US Gallon.
So the 54 mpg Imperial translates to 45mpg US.
- Joined
- Jul 7, 2010
- Messages
- 300
rx7171 said:
I calculated it in US gals as gas is sold in litres here. In Canadian terms, I'm getting 4.3 l /100 kms. With an odometer in miles and gas in litres it requires a conversion calcution either way.
I have been known to zip across the bridge for gas and beer, both cheaper in the US. Its about $0.98 l and 30 cans of Rolling Rock can be had for $17.99 vs gas at $1.26 l and $45 for a 24 of cans here.
- Joined
- Jul 25, 2010
- Messages
- 5,865
I almost gave it away when it went over $ 10 for a crate of twelve Quarts . I can understand your dilema .
100 Octane rateing for 10 : 1 C.R .
The pint is where it all started , I considered being offered 500 mils was being robbed , our american friends may not .
U.S. pint is 16 Oz. , British Pint is 20 Oz. , so we can understand there predilction for Pints .
At the filling station , 9 or 18 litres is near as damn 2 or 4 Imperial Gallons . 4.54 Litre , so 2 is 9.08 or 4 18.16 Litre .
The old PLUS 1/4 US to Pommy Gallons , Minus a fifth , or 5 over 4 or something the other way .
BUT , here in the Antipodes , the 44 Gallon Drum is legendary , where it mustve originated as a U.S. FIFTY Gallon Drum .
100 Octane rateing for 10 : 1 C.R .
The pint is where it all started , I considered being offered 500 mils was being robbed , our american friends may not .
U.S. pint is 16 Oz. , British Pint is 20 Oz. , so we can understand there predilction for Pints .
At the filling station , 9 or 18 litres is near as damn 2 or 4 Imperial Gallons . 4.54 Litre , so 2 is 9.08 or 4 18.16 Litre .
The old PLUS 1/4 US to Pommy Gallons , Minus a fifth , or 5 over 4 or something the other way .
BUT , here in the Antipodes , the 44 Gallon Drum is legendary , where it mustve originated as a U.S. FIFTY Gallon Drum .
- Status
Similar threads
- Locked
