R18 feels faster in hot weather rather than cold weather

dattebayo · 05-13-2008, 04:12 AM

one thing I noticed about my civic is that when the weather is hot, I feel like the car is faster and the engine push feels smoother and stronger rather than in cold weather. Does it makes sense? Does anyone of you notice that?

KShirza1 · 05-13-2008, 04:20 AM

Quote:

Originally Posted by dattebayo

one thing I noticed about my civic is that when the weather is hot, I feel like the car is faster and the engine push feels smoother and stronger rather than in cold weather. Does it makes sense? Does anyone of you notice that?

impossible... the denser (cooler) the air being shot in = more power = more combustion.

dattebayo · 05-13-2008, 04:23 AM

I dunno, that's just how I feel. Last week's weather was hot and my civic's running very nice then it started getting cold this week. I noticed a change on it. In cold weather I feel like my car is running with the handbreaks up even if it's not. Weird

emopains · 05-13-2008, 04:33 AM

He's got his facts switched

e60.deluxe · 05-13-2008, 04:42 AM

when its warmer your gonna get better throttle response and possibly low and mid range at the expense of top end.

e60.deluxe · 05-13-2008, 04:45 AM

Quote:

Originally Posted by KShirza1

impossible... the denser (cooler) the air being shot in = more power = more combustion.

errr, in the lower-mid RPMS the ECU will open the throttle body wider when the air is warmer to compensate for the lower amount of air. even with the same amount of air going in, with a wider opening the air is coming in with less resistance, which means better throttle response and possibly more power. also, with thinner air, you will get a more complete, less wasteful combustion.

so its not impossible.

have you heard those people with CAI's saying they are loosing bottom end and throttle response? what about the theory that your car gets better gas mileage in warmer weather? its the same principal. if your just driving normally and not pushing the car, warmer air is generally better than colder air.

PeterC. · 05-13-2008, 04:58 AM

He lives in Costa Mesa, can that have anything to do with it? Maybe something with the marine layer when it's cold and increased humidity? IDK, just a thought....

Kurz · 05-13-2008, 06:27 AM

Also the fact the fuel itself is warmer. Also it vaporizes easier to allow faster, more complete burn.

SilverBulletGTP · 05-13-2008, 01:17 PM

I find that my R18 is a dog in hot weather, it usually runs the best in spring or fall weather.

jasongg06 · 05-13-2008, 02:03 PM

I feel that my civic is faster when it's cooler and slower when it's warmer.

simplicated1979 · 05-13-2008, 02:23 PM

Quote:

Originally Posted by e60.deluxe

when its warmer your gonna get better throttle response and possibly low and mid range at the expense of top end.

^^what he sai^^

also keep in the mind the denser/colder the air the more oxygen...we need oxygen to breathe better so does our engines...

05-13-2008, 04:12 AM	#1 (permalink)
dattebayo Senior Member Join Date: Oct 2007 Location: Costa Mesa, CA Age: 23 Posts: 153 iTrader: 0 / 0%	R18 feels faster in hot weather rather than cold weather one thing I noticed about my civic is that when the weather is hot, I feel like the car is faster and the engine push feels smoother and stronger rather than in cold weather. Does it makes sense? Does anyone of you notice that? Last edited by dattebayo; 05-13-2008 at 04:13 AM.

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05-13-2008, 04:23 AM	#3 (permalink)
dattebayo Senior Member Join Date: Oct 2007 Location: Costa Mesa, CA Age: 23 Posts: 153 iTrader: 0 / 0%	I dunno, that's just how I feel. Last week's weather was hot and my civic's running very nice then it started getting cold this week. I noticed a change on it. In cold weather I feel like my car is running with the handbreaks up even if it's not. Weird

05-13-2008, 04:33 AM	#4 (permalink)
emopains Senior Member Join Date: Aug 2007 Location: Phoenix, Arizona Age: 20 Posts: 2,065 Marcus iTrader: 0 / 0%	He's got his facts switched

05-13-2008, 04:42 AM	#5 (permalink)
e60.deluxe Senior Member Join Date: Apr 2007 Location: Lake Forest, CA Age: 22 Posts: 4,704 iTrader: 3 / 100%	when its warmer your gonna get better throttle response and possibly low and mid range at the expense of top end.

05-13-2008, 04:58 AM	#7 (permalink)
PeterC. Senior Member Join Date: May 2007 Location: SoCal Age: 23 Posts: 232 iTrader: 0 / 0%	He lives in Costa Mesa, can that have anything to do with it? Maybe something with the marine layer when it's cold and increased humidity? IDK, just a thought....

05-13-2008, 06:27 AM	#8 (permalink)
Kurz Member Join Date: Apr 2007 Posts: 86 iTrader: 0 / 0%	Also the fact the fuel itself is warmer. Also it vaporizes easier to allow faster, more complete burn.

05-13-2008, 01:17 PM	#9 (permalink)
SilverBulletGTP Senior Member Join Date: Oct 2007 Location: Toronto Age: 20 Posts: 244 iTrader: 0 / 0%	I find that my R18 is a dog in hot weather, it usually runs the best in spring or fall weather.

05-13-2008, 02:03 PM	#10 (permalink)
jasongg06 Senior Member Join Date: Jun 2006 Location: 626 So Cal Posts: 1,262 iTrader: 0 / 0%	I feel that my civic is faster when it's cooler and slower when it's warmer.