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Author: Subject: What a difference the cold air makes!?!?
eznfrank

posted on 29/11/08 at 10:25 AM Reply With Quote
What a difference the cold air makes!?!?

I know cold air good, warm air bad but i never realised it made that big a difference. I just dropped the missus off at work and was coming back up the m621 towards junction 27 (uphill) in the cinquecento and as i looked at the speedo, well lets just say i was no longer on the right side of the law. I've never been above about 55 on that hill before, it can't all be down to nice cold air can it? It's only a 900cc shoe box and it was flying!

P.s. Yeah i know i should be ashamed driving the cinq but it saves me at least £100 a month over my alfa which i now just use as a weekend car, and i get a guaranteed parking space at work cos no-one else can fit in it! Plus it's funny how differently other drivers treat me in the cinq, they probably expect some oap at the wheel when they try cut in not expecting to see a 16 stone skinhead lad. :-) My work colleagues say i look like bowser off mario kart when i drive it. to be fair it is more like a big mechanical coat than a car!



[Edited on 29/11/08 by eznfrank]

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jos

posted on 29/11/08 at 10:30 AM Reply With Quote
I got that feeling when I borrowed my parents smart car.

My colleagues said one side looked awsomly slammed while the other looked like a monster truck

LOL





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jacko

posted on 29/11/08 at 10:54 AM Reply With Quote
Ice on the road = wheel spin ?

cold air makes a difference

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MikeR

posted on 29/11/08 at 10:55 AM Reply With Quote
i'm 6'3" and used to drive an old style mini (1973 so none of the mod cons). The weird bit is i fitted in really well. Sir Alec definitely "did the maths". Drove a much later 'old' mini and i didn't fit as well once it had reclining seats and modified wheel position.

(by fit i should point out people used to laugh when i climbed out as the thing was up to my belly button or something & the big metal steering wheel used to rub through the knees on my jeans & i hardly ever used to the sun visor).

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turbodisplay

posted on 29/11/08 at 11:05 AM Reply With Quote
Desnisity of air increases 0.3% per degree celcius, so 20cmakes 6% to density, so therfore amount of fuel injected.

Darren

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matt_claydon

posted on 29/11/08 at 11:13 AM Reply With Quote
Density of air is about 1.204 kg/m^3 @ 20 degrees and 1.292 kg/m^3 @ 0 degrees. Therefore expected power increase from 20 to 0 degrees is about (1.292-1.204)/1.204 = 7.3%.

This assumes humidity and atmospheric pressure remain constant.

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blakep82

posted on 29/11/08 at 11:16 AM Reply With Quote
its annoyting isn't it... more power to have fun with when the roads are slippery and wet/icy





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MikeRJ

posted on 29/11/08 at 04:55 PM Reply With Quote
quote:
Originally posted by eznfrank
P.s. Yeah i know i should be ashamed driving the cinq but it saves me at least


Not at all, but you should be ashamed it's not a Sporting Cinqs are great fun to drive, and since they feel much faster than they are it's safer for your license.

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MakeEverything

posted on 29/11/08 at 06:03 PM Reply With Quote
quote:
Originally posted by blakep82
its annoyting isn't it... more power to have fun with when the roads are slippery and wet/icy


Unless the cold oxygen is supplied with nitrogen in a bottle. The effects that Frank has experienced are the same principle to those applied to Nitrous Oxide Injection, only not as complicated.

Water Injection (so i am told) has a similar effect.





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Richard.

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