Make the effort to wrap it really really tight. Overlap it by half its width. Really tight.
It never lasts that long on a regularly driven street vehicle, hard to predict how long.... what we can however predict is how arse it'll look if it's not tight. Go slow, pull it as tight as you can![]()
Does your hot water cylinder in your house heat up magically without using any energy, or is it only the cooling system of your car that does that? Do you actually think that ten litres of water can heat up to 90 degrees without burning any more fuel, or is the choke there just to offset the fact that fuel apparently sticks to the inside of a cold engine?
This has nothing to do with why engines prefer cold air. Cold air is more dense & contains more oxygen & thats where most of the power gain comes from in using a cold air intake.
The choke (far more commonly a fuel enricher) is there to ensure the ratio is still stoichiometric, as when you start up the intake charge is a lot colder and denser, requiring more fuel. You run at a lower efficiency while warming up becuase the exhaust gases are colder also (due to more combustion energy passing into the cylinders and cooling system), so the temperature differential (thus efficiency) is lower than a fully warmed up engine.
Cold air intake in the power sense is much as you described, but for an efficient cruise, the butterflys are limiting the amount of air coming in anyway, so the density is not very relevant, however the temperature of it is.
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
And I can assure you header wrap works!
I think you're on a totally different wavelength to the rest of us here. I don't think anyone had said that the engine heats itself without using an energy source. Quite to the contrary, IIRC the energy from petrol is converted to only about 10% motive force and 90% is wasted as heat.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks