back from an 80 km test-drive and the dashboard counter showed this:

i hate you :(

well no, not realy, you are a great mate, but i do envy the living (beep) out of you, jajaja, boy i would be happy as a clam if my car gave me that, plus i lve the dashboard counter, wish i could have one of those

and i bet it will only get better, jeje

one question, do you do a lot of driving outside the city, or very low trafic driving, cus i get 40ish km/g (9.01L/100km) but is all city driving on a very clogged metropolis

Stop-start and short trips are the 2 most sure killers of fuel mileage. My commute involves a cold start, and usually several accelerations from 0 to 50mph or so over about 12 miles. When I'm on holidays I drive faster, but do longer trips with less accelerations in the total mileage, and see certainly 10% better economy (if I was prepared to drive slower, I'd expect to get even better)>

i hate you :(

well no, not realy, you are a great mate, but i do envy the living (beep) out of you, jajaja, boy i would be happy as a clam if my car gave me that, plus i lve the dashboard counter, wish i could have one of those

and i bet it will only get better, jeje

one question, do you do a lot of driving outside the city, or very low trafic driving, cus i get 40ish km/g (9.01L/100km) but is all city driving on a very clogged metropolis

My everyday trip ist about 25 km ...

15 km highway and 10 km city cruisin... Now in winter (today -1°C) i need more gas than in summer. And cities cause a higher consumption

The dashboard counter is very very rare and only for injection models

My everyday trip ist about 25 km ...

15 km highway and 10 km city cruisin... Now in winter (today -1°C) i need more gas than in summer. And cities cause a higher consumption

The dashboard counter is very very rare and only for injection models

have you ever though about removing the tubing and impovizing an air filter so the engine breathes the hot engine bay air

Don't!! Fuel vapourisation is just about as hard to trace as an "engine fault" as carburetor icing is. Joys of living in Scotland include getting weather than can induce both in the same calendar year!

i don't want to change anything... i have a k&n filter in my car...nothing else is changed at the engine...

"never touch a running system"

Don't!! Fuel vapourisation is just about as hard to trace as an "engine fault" as carburetor icing is. Joys of living in Scotland include getting weather than can induce both in the same calendar year!

i'm kinda lost here, i was just asking since some ecomodders talked about it to increase FE on cold days, so it was a question not a sujestion, (edit>added) )oh! and i was'nt taking about the engine itself, like removing something from the valve cover, i was talking about the intake

aynways i've seen in the car a tubing that goes to the exhaust manifold for the same purpose so again i though it was nothing,

sorry for the fright

Edited 12 February, 200917 yr by Cepheuz
added a cooment to explain myself better

aynways i've seen in the car a tubing that goes to the exhaust manifold for the same purpose so again i though it was nothing

it's to prevent the throttle from freezing

I was talking about 2 separate issues here:-

1) fuel vapourisation, which occurs when you get the temperature in the carburetor to the point where the fuel sublimes or even boils. This is a PITA to fault-find, because when the engine cools down a bit it stops by itself, and the engine works fine again. People who talk about fuel vapour in the inlet manifold should be ignored, because what you want there for good combustion is a fine mist or emulsion. Actually, somethere in this area is the reasoning why hot fuel is bad for both power and economy!

2) carburetor icing. This occurs when you get cold (below +5C) and very damp (better than 95% relative humidity) weather. What happens is that, when this very cold, moist air passes through the carburetor venturi, it is cooled sufficiently to sublime the water vapour directly into ice, which chokes the engine. As Pollywog says, the tube from the exhaust to the air cleaner intake is to feed heated air to the carburetor in European Winter weather to stop this happening.