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Performance at night vs during the day

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Old Jul 26, 2019 | 11:17 PM
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Greasymechanic's Avatar
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Default Performance at night vs during the day

I know that at night iat drop air becomes more dense it help the performance of the car but I feel like my car is no where near as strong during the day as it is at night I’m wondering if maybe I’m missing something in my tuning since I’m learning how to do it on my own or if it’s just in my head
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Old Jul 27, 2019 | 03:31 PM
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In your head most likely. There are spots around here where the temps change drastically depending which side of the valley you are on, it can be 80F on one side and 60F on the other because one side runs along a glacier fed river in total shade. I can tell no difference in my turbo car. My motorcycle tends to run better by the river but its air cooled...The IAT in the car drop maybe 3degrees at cruise going from 80 to 60's. I'm pretty sure a dyno wouldn't even be sensitive enough to tell. Go all the way to late fall or even dry winter with no ice and the temps are sub freezing and its not enough to gain any HP.
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Old Jul 29, 2019 | 05:06 PM
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Depends on how aggressive your IAT retard table is.

Also any car is going to run better with cooler denser air.
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Old Jul 29, 2019 | 05:14 PM
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My procharged 4.8 loves some 50- air. But then my tires don't hook. Maybe a tradeoff at certain temp hi's/low's. Just my .2 cents.......
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