Does your car feel different in cold temps?
12-20-2010, 09:59 AM
#41
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I do know that in below freezing temps its important to keep your drive train lubricated, joints, and sway bar links lubed, etc. If you don't, you're asking for a break or failure at some point. With cold weather all metal, steel, plastics become frigid and lose strength.
12-20-2010, 10:18 AM
#42
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My Ride: 2006 530i mystic blue
12-20-2010, 05:27 PM
#43
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In flying, pilots use a calculation of air density to calculate take-off speeds. It's call ASA (international standard Atmospheres) and is a measure of the average air density at any given airport. Obiviously, the hotter it is, the less air density and so higher take-off speeds are required
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
12-20-2010, 10:32 PM
#44
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My Ride: Alpine White 2006 530Xi (SLD)
OK New problem caused by the cold (I hope).
right it -6[sup]o[/sup]c this morning, car started as normal, very lumpy, a few rev's and she settles down. couldn't be bothered to scrap the ice off the car so decided to sit the and wait for it to heat up.
I turn the heaters on, not a lot of heat yet but my ears popped with the pressure build up inside the car. never happened before. I get out to scrap a bit of ice and as i open the door, again i felt the pressure change. closed the door now i can hear whistling, it coming from the door handle, i could feel air been blown out the handle's all round the car.
in the car again (ear's popped) then went to Tesco's. (It's nice and quite at 6:30 in the morning).
on the way home same thing.
Now is there any air valves/flap to release the pressure in the car. My old cilo had them in the boot (Trunk). I'm guessing that, if it has them they are frozen solid.
Any other ideas?
right it -6[sup]o[/sup]c this morning, car started as normal, very lumpy, a few rev's and she settles down. couldn't be bothered to scrap the ice off the car so decided to sit the and wait for it to heat up.
I turn the heaters on, not a lot of heat yet but my ears popped with the pressure build up inside the car. never happened before. I get out to scrap a bit of ice and as i open the door, again i felt the pressure change. closed the door now i can hear whistling, it coming from the door handle, i could feel air been blown out the handle's all round the car.
in the car again (ear's popped) then went to Tesco's. (It's nice and quite at 6:30 in the morning).
on the way home same thing.
Now is there any air valves/flap to release the pressure in the car. My old cilo had them in the boot (Trunk). I'm guessing that, if it has them they are frozen solid.
Any other ideas?
12-20-2010, 10:32 PM
#45
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My Ride: Alpine White 2006 530Xi (SLD)
my car rides like a brick shit storm in the cold. suspension hits hard the interior is noiser. all in all just not pleasing like it was warm. not to mention this car seems to take forever to warm up. ill start car at 3am to go to work. start driving it at 3.05 i get to work at 330 and just as im pulling into the parking lot i can feel heat coming from the vents. usually cold started at or around 25 degrees. weird and annoying
Hi,
Apperently the oil in shock absorbers can solidify when in sub zero temps. If the oil in the absorber is of a higher quality it will be less efected by ambient temps. The car should become better as you drive.
Your car will be quicker when its cold because the oxygen is more dense causing a larger explosion in the combustion chamber. Exactly the same effect as having an intercooler.
Apperently the oil in shock absorbers can solidify when in sub zero temps. If the oil in the absorber is of a higher quality it will be less efected by ambient temps. The car should become better as you drive.
Your car will be quicker when its cold because the oxygen is more dense causing a larger explosion in the combustion chamber. Exactly the same effect as having an intercooler.
So the slow warm up is one of the symptoms? I'm not complaining, but was planning to swap out the thermostat anyway this winter, so looking forward to faster warm-ups
I do know that in below freezing temps its important to keep your drive train lubricated, joints, and sway bar links lubed, etc. If you don't, you're asking for a break or failure at some point. With cold weather all metal, steel, plastics become frigid and lose strength.
Thanks!Keep em coming!
In flying, pilots use a calculation of air density to calculate take-off speeds. It's call ASA (international standard Atmospheres) and is a measure of the average air density at any given airport. Obiviously, the hotter it is, the less air density and so higher take-off speeds are required
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
Airflow only matters at high speeds in cars. At city speeds, only cross-winds have any real affect - and even those are mostly limited to marginal fuel consumption increases. Most people would not know it even makes a difference.
12-21-2010, 08:38 AM
#46
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In flying, pilots use a calculation of air density to calculate take-off speeds. It's call ASA (international standard Atmospheres) and is a measure of the average air density at any given airport. Obiviously, the hotter it is, the less air density and so higher take-off speeds are required
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
Interestingly, this does not apply to engine performance, only airflow over the wings, (lift) so air density should not affect car engine performance, but it should affect high speed aerodynamic handling.
12-21-2010, 11:13 AM
#47
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Intercooler (I guess) is to get more air / fuel mixture into cylinder.
Good point someone made, about aicraft and car engines being different...jet turbines are much more basic in combustion terms than a lean-burn car engine.
12-21-2010, 01:15 PM
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Dunno ! I only know about ASA in flying and that I use more fuel in my car in winter...! Not noticed any difference in performance on a hot or cold day....only on 'gremlin' days, when the car got 'outa the wrong side of the bed', then it drives like a sack of s**t.
Intercooler (I guess) is to get more air / fuel mixture into cylinder.
Good point someone made, about aicraft and car engines being different...jet turbines are much more basic in combustion terms than a lean-burn car engine.
Intercooler (I guess) is to get more air / fuel mixture into cylinder.
Good point someone made, about aicraft and car engines being different...jet turbines are much more basic in combustion terms than a lean-burn car engine.
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