stop/start

motorguy

topdaddy wrote: »

Nice try but no dice:dance::dance:

You just cant admit you're wrong can you?

I've even given you links to read that talk about how it all works, but you just cant accept you're wrong.

I think thats quite sad.

motorguy

topdaddy wrote: »

You were gonna video the heat coming out the heater:rotfl:

For reasons above, I think you are a bit dense. Just you. Not the whole forum. Not we, just you.:T

Out of curiosity, given the heater matrix may well be at the operating temperature of the engine - say 90 degrees for talk sake - and a typical car cabin is heated to 22 degrees, and there is a fan blowing air through the 90 degree heated heater matrix, where does all the hot air go instantly that would prevent it from continuing to heat the car for a period of time from the latent heat remaining?

Because what you seem to be saying is -

Car on = 90 degree heat in heater matrix
Car off all heat disipates instantly

Where does it go?

Genuinely curious as to what you think happens?

Do the pixies take it away?

almillar

Topdaddy, I assume you own a car. You're stubbornly sticking to your point even when the world around you (OK everyone in this forum) is telling you you're wrong.
How about a little test.
Go for a drive, get the engine up to temp. Stop the car somewhere safe, not the engine. Put the heating up to top temp, top fan speed, and pointed directly at the occupants, rather than at feet or windscreen or whatever. Of course, it'll be warm.
Now, switch off the engine, but let the fans keep going. It's still warm isn't it? The heater (that's the engine!) isn't running any more, but heat is still being blown at you, for a while. That's residual heat. The point in the context of the original post, is that if any system needs the engine to run, either it won't switch off in the first place, or it'll restart automatically.
If you're still having trouble understanding that heat doesn't instantly disappear once the engine is stopped, open the bonnet and stick your hand on the engine and tell us how cold it is if you can still type ;-)

scoot7

My car has a switch where I can turn stop start on/off. I always turn it off as soon as I get in my car, especially when I want to use my AC because the AC turns off when the engine does so it's a pain! Best bet is to speak to the car dealership or read through some forums on the specific car - e.g. Renault forums etc.

DUTR

scoot7 wrote: »

My car has a switch where I can turn stop start on/off. I always turn it off as soon as I get in my car, especially when I want to use my AC because the AC turns off when the engine does so it's a pain! Best bet is to speak to the car dealership or read through some forums on the specific car - e.g. Renault forums etc.

Many demands overide the SS system, or it's certainly that way on my car, the way some are making out as if the car is literally stalling as one makes their merry way to their destination :rotfl:.

Shielder

*Bringing the discussion slightly back on topic*

Can someone tell me what the advantages are of this Stop-Start tech? If I keep a car at idle, it generally will take 3-4 hours to use a gallon of fuel.

Given the cost of starter motors, fuel pumps and general wear and tear on the engine, can someone explain why saving a few ml of fuel when stopped at traffic lights is a good thing as opposed to keeping the engines going and reducing wear and tear on the battery, starter motor, fuel pump etc etc?

Andy

daveyjp

Manufacturers fit it to reduce CO2 output in tests. The biggest saving for the owner is VED, not fuel, but I reckon I save about a gallon every couple of weeks which is enough to pay my VED for a year.

Shielder

You spend 4 hours waiting in traffic? Not moving?

Go a different way to work/pleasure/wherever next time.

Each to their own, but I saw a 5 year old car take between 3 to 5 seconds to start at the lights the other day. The driver was not impressed (neither was the queue behind him either).

DUTR

Shielder wrote: »

You spend 4 hours waiting in traffic? Not moving?

Go a different way to work/pleasure/wherever next time.

Each to their own, but I saw a 5 year old car take between 3 to 5 seconds to start at the lights the other day. The driver was not impressed (neither was the queue behind him either).

Hmm, but considering your car was already running, how come you were still around at the lights to see the other driver's plight?

Shielder

In the queue