Originally Posted by
VALK
First time out with the ultraguage on a 9 degree night for a little warm up run with the Crossfire.
Ultraguage readings tonight:
Running down the road at 60mph
Outside temperature 9 degrees
Engine temp 183 degrees
Intake temp reading a cool 22 degrees.
Hit the throttle wide open for about 10 seconds and watch the intake temp drop to 18 degrees as it pulls in that frigid outside air.
These cars are definitely more powerful with cold air.
Shows the true meaning of a Needswings "Cold Air Intake"
That's beautiful. I wish we had winter here. Everyday it's in the 80's so I'm lucky if I can get the temps below 100 on a good day.
How much HP gain per 10 degree temp drop? - Corvette Forum
"With no change in altitude, relative humidity, or air pressure, the SAE correction factor is slightly over 1% for every 10 degrees F.
So 400 HP at 77 degrees converts to:
387.6 HP at 107 degrees
414 HP at 47 degrees
Additionally, humidity changes the results by about 1.85% for every 50% of relative humidity.
Every 1000 feet of altitude changes the result by approximately 4.2%
Every 0.5 inches of mercury (air pressure) changes the result by around 2.1%
SAE HP is achieved at 0 feet above sea level, 0% relative humidity, 77 degrees F, and 29.235 inches of mercury."
So between where you are and Guam I've seen my intake temps get upto 150F with the Needswings CAI in traffic and down to 95F when cruising at ~50mph. So I'm losing about 7.3% at 150F and you're gaining right at about 6%! So Jealous!