TS Dyno figures , with or without mods

[AppleJacks716]

Originally Posted by aucorium

correct , most dyno's read on the wheel power yeah , although when we get give readings here , it is at the crank power. yeah i's be happy with anything above 120 whp or that.

quick question , why would my car seem to run better in hotter weather than cold weather ? when its a really cold evening the car seems to pull , but it just seems to pull better during hotter conditions ...

Colder air is more dense then hot air. Denser air burners faster/hotter/more explosive. So technically the engine would produce more power when the air is cold/dense.

It may feel like the car pulls harder when its hot out because the tires are warmer and more sticky. I can't think why the car would pull harder when its hot out. Maybe your window is down and it sounds louder making it seem faster lol?

[aucorium]

Originally Posted by AppleJacks716

Colder air is more dense then hot air. Denser air burners faster/hotter/more explosive. So technically the engine would produce more power when the air is cold/dense.

It may feel like the car pulls harder when its hot out because the tires are warmer and more sticky. I can't think why the car would pull harder when its hot out. Maybe your window is down and it sounds louder making it seem faster lol?

hey buddy , yeah , makes sense , maybe the hotter air being it gives a more explosive feel the thump feels harder , and the cooler air gives a smoother power delivery , thanks for the insite ... hehe , better keep the window down then , haha !!

[aucorium]

found this info in wikipedia

"Warmer air is less dense, and thus contains less oxygen to burn fuel in. The car's ECU compensates by opening the throttle wider to admit more air. This, in turn, decreases the resistance the engine must overcome to suck air in."

that could be why i seem to feel as if the car is not as punchy, with the warmer air the throttle opens wider , giving it the more punchy feel ... makes sense to me ... so its not making more power as such , just feels more as the throttle opens wider at that given time.