anyone noticing power increases with cooler weather ?
10-05-2010, 05:29 PM
#1
anyone noticing power increases with cooler weather ?
Last night and today my car feels like it has gain crazy throttle response and I can litterally smoke the tires basically as far as I want till 2nd just stomping it. But the car does not leave much rubber at all though
Last night I left my drive way and for the hell of it I layed into it and the car did not grab till a house and a half down the street.And I think the only reason it grabed is because I let off because the car was pinging all off the rev limiter.
Anyone else noticing more power?
Last night I left my drive way and for the hell of it I layed into it and the car did not grab till a house and a half down the street.And I think the only reason it grabed is because I let off because the car was pinging all off the rev limiter.
Anyone else noticing more power?
Last edited by richardparker; 10-05-2010 at 05:31 PM.
10-05-2010, 05:40 PM
#2
Trolling Canuckistan
3 things.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
10-05-2010, 06:02 PM
#4
Three Wheelin'
Every ten degrees cooler means 1% more HP, however what do you guys think of this. I say that the Honda ECU is set up so that below 60 degrees the timing is allowed to go to maximum. It seems just like the OP said, I feel like I've added a whole additional cylinder it is running so good.
10-05-2010, 06:06 PM
#5
3 things.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
Last winter my car was riping to.
then from the winter to the summer I added a bunch off stuff performance,suspension,tires.
The car felt faster and faster but the tires were not spining as much as time went on too, when the summer time came but it would only chrip chirp chirp the tires and again when 2nd grabs.
And I was thinking something was getting worse and worse but now I know I can compare this time and the same time last year together and I can defintly tell my car has gained crazy power.
I was joke'n with the wife saying I'm going to need another set of tires for the front after winter.
I will be having some fun comming.
I wish I had my dam video cammera power cord.
I would make a video showing a P, laying it down.Loud as a mutha F'a
did this last night about 10-11pm like a ass,I know some one was like what the F was that,Or maybe everyone on my street
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10-06-2010, 10:08 AM
#8
Senior Moderator
3 things.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
1st, cooler temps will increase HP, this is basically natures intercooler.
2nd, cooler temps lead to cooler tires at start up which leads to less traction.
3rd, cooler temps lead to cooler road surfaces which have less of an ability to grip the tires.
Combine these 3 and you can spin your tires a lot longer than you could on a 95 degree day withhot air going in the engine, hot rubber, and hot pavement.
10-06-2010, 10:50 AM
#10
I can pull the ebrake,sizzle the tires and make marks up the street with ease.
But off the line maybe 3-4 feet.
It's been 90 or above basically all summer now in the last week or so the temp has droped to 50-60 at night.
30-40 degrees drop all of a sudden is huge.
Tires I have are nexxens 3000's with less than 1k.They have great grip and I couldn't even make them make any noise comming around conners when I was beating the car when I drop the car on coilovers, unless spinning them.
Anymore of a better griping tire than what I have
and I would be taking conners like tron.
But off the line maybe 3-4 feet.
It's been 90 or above basically all summer now in the last week or so the temp has droped to 50-60 at night.
30-40 degrees drop all of a sudden is huge.
Tires I have are nexxens 3000's with less than 1k.They have great grip and I couldn't even make them make any noise comming around conners when I was beating the car when I drop the car on coilovers, unless spinning them.
Anymore of a better griping tire than what I have
and I would be taking conners like tron.
10-07-2010, 08:37 AM
#12
Senior Moderator
Regional Coordinator
(Mid-Atlantic)
Regional Coordinator
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iTrader: (6)
I hate this weather, but it is nice since I added the k&n to my 4runner and the weather's been cold, she's definitely had more balls
10-07-2010, 06:28 PM
#13
Whats up with RDX owners?
iTrader: (9)
Give me mid 60s, no humidity year round. That way the car responds well and the ground isnt too cold so I can still hook up.
One thing that does suck is when it dips into the 40s at night the car takes longer to warm up because of the cooling mods.
One thing that does suck is when it dips into the 40s at night the car takes longer to warm up because of the cooling mods.
10-08-2010, 12:15 AM
#14
Racer
10-14-2010, 07:53 PM
#16
Every ten degrees cooler means 1% more HP, however what do you guys think of this. I say that the Honda ECU is set up so that below 60 degrees the timing is allowed to go to maximum. It seems just like the OP said, I feel like I've added a whole additional cylinder it is running so good.
10-14-2010, 09:02 PM
#17
Senior Moderator
My car has always been the most powerful and fastest when temps have been in the mid 50s. I ran a 14.9 with my TL-P that way and recently hit a 13.8 with the 6 speed conversion and TL-S motor.
what mods you got ?
10-14-2010, 10:08 PM
#19
Whats up with RDX owners?
iTrader: (9)
10-15-2010, 11:16 AM
#21
Whats up with RDX owners?
iTrader: (9)
You can definitely feel the difference. The car is more responsive. Cold air is denser, more air, more power.
10-15-2010, 02:47 PM
#23
Whats up with RDX owners?
iTrader: (9)
I dont have a number. But the responsiveness overshadows the HP gain. When its hot out the car feels sluggish. When its around 50-60, the car feels snappy.
10-26-2010, 01:25 PM
#25
Cruisin'
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10-26-2010, 02:51 PM
#26
I Wanna Beer
The Effect of Temperature
Temperature also has an affect on air density. The formula to determine air density in pounds per cubic foot is: Pressure in inches of mercury times 1.326, divided by absolute temperature in degrees farenheit. (Absolute temperature = temperature + 459.6) If, for instance your induction system draws intake air from under the hood, the intake air temperature on an 80 degree day can easily exceed 130 degrees. Using a barometric pressure of 29 Hg" for our example, the air density under the hood at 130 degrees is .0652 lbs. per cubic foot. Now if you change to a cold air setup which draws 80 degree intake air from outside of the car, the air density is .0713 lbs. per cubic foot This is an improvement of 9.3%! Using a 200 hp engine as an example, this is an improvement of 18.6 horsepower! In practice the horsepower improvement will be less than theoretical because the incoming air will be heated by the intake manifold, and the engine itself. Further improvement can be made by insulating the intake manifold so that it picks up less heat from the exhaust system, and radiator. It is probably not possible to achieve the theoretical density increase, but it should be clear that there is much to be gained by keeping the intake charge cool.
This info is from the link below.
http://www.yawpower.com/martech.html
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