i love drivin my car when its this cold, the motther fucker just flies, i really think it makes about 20whp more all across the band now than it does in the summer , my stock tires have no tread left so if i ever got wot in first gear i can squeel em all the way to second:o , but i'm gettin winter tires on next week... i'm wishin the track was open now

 

It really is a beautiful thing.

 

Actually, it could be more power than 20WHP.

With everything else equal; Baro of 30.0inHg and Humidity at 50%. At 80 F you have a Relative Air Density 95.7% and at 30 F you have a Relative Air Density of 106.1%. That alone could account for about 8% - 10% power change. Add into this the change in timing and fueling and you could potentially have 12% difference in power.

 

But everyone benefits.

And honestly, the blown motors benefit more.

 

Cold weather with S/C is great.

 

yea right now traction w/stock tires is really bad no matter what in 1st they will spin and even hitting second i can get mad wheel hop and a 20ft mark!

 

The problem with me is that when it is cold, people (for whatever reason) drive slower. I have a 25 mile commute so deal with a lot of stop and go...hense the 03' AUTO and not teh 6 speed. So when I finally hammer it...that car seems a bit confused? It just doesn't seem as fast as if I am zipping around before that. When I am zipping all morning the car screws past time itself. I am guessing our computer adapts to the driving style?

 

I could swear my friend said every 7 degrees the temp drops is a horsepower .. like from 80deg to 20 deg the colder air will help you make about 8 or 9 more hp .. thats what the guy that dyno'd him said .. he could be wrong.

 

It's like 4 degrees up here, but all the roads are snow covered. And besides, my car is downstate for the winter :o

 

The physical properties of the fuel conditioner make a huge difference especially in this weather,.....

 

My 1986 Grand national was calculated that it ran nearly .8 seconds quicker in the 1/4 mile at 10 degrees.


It had a HUGE interccoler, 2 to 3x the size of what we see on some cars now and it was running at 21 lbs of boost....

 

The general rule of thumb is about 1.5% change in HP per 10 degree temperature change for an NA vehicle. 2% change in power per 10 degrees temp change for a forced induction vehicle.

Maybe he confused HP and actually meant % change in HP. You cannot say strictly HP because of the variances in output.

 

good steve so with our intercooler your making we can have muuuuuucccccccchhhhhhhhhhhhhh more power .oh by the way who the hell is going to make us a traction bar!!!!!!!!!!!

 

 

isnt cold air a beatiful thing.

 

but our engines is one of those that has a big difference between the hot and cold, i dont feel the power gain in my moms or dads car as much as i do in mine

 

hmm cali is stilll like 67 degrees

 

I would think a CL with a CAI would benefit more from the cold temperatures than a CL with stock intake, right?

 

http://wahiduddin.net/calc/calc_hp_abs.htm

this will tell you how much more or less power you will get b/c of air temp/qual

kevin

 

my 2.2 thinks its a v6 during the cold weather. its great being able to peel out. its definitely a whole diff car. the cai loves 10 degree dry air. too bad got to watch out for ice and deer.

 

about the same here.

 

im having fun with little snow and cold temps here...

 

I drove my Mustang he other night and the dr's were like ice even on dry pavement until they warmed up. I'd floor it while midway through 3rd and it would start fishtailing.

My Taurus even seemed fast last night driving to work when I had to pass someone. :o

This wek I'm gonna dyno my CL-S I think. Not gonna have a better chance to make good numbers I think.

 

True but i just meant driving around and do things like passing grandma in the left lane.

 

Not really, it depends on the amount of HP in the beginning too and what you really expect fromt he car.

IMO, my GTP varied a greater amount with temperature. But the all time worst vehicle I have owned that varied power output per climate changes was my Typhoon. That thing probably varied 60 - 70 WHP between summer and winter. During the winter it was scary off of the line; pulling to 60 easily in the low 4's (if not a high 3's). In the middle of summer I doubt it would of broke into the 4's.

 

my brothers wrx (bpu) is lovin this weather. i could hardly lift my head off the headrest when we did a couple 20-75+ rolls. turbo>vtec

 

I surely does like the cold weather, how about 20F in the morning and dew point in 2-5F...loving that!... how the you can't have a free launch and eat it too!.. with cold weather you need to run Snow tires tires (205/60/16) handling sucks big time. traction will suck a bit more since the tires are too soft to hook up!....

Overall, I prefer spring time at 40F temp and 30.5" AP and dew points in 20F. Ah, by next spring I will be having new Max Performance tires ( Eagle F1 DSG-3) or maybe the new UHP kumho KU19.

Nashua.