Intake and turbo function question
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MBWorld Fanatic!
Joined: May 2021
Posts: 1,317
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From: Plainfield IL
Amg C43
Intake and turbo function question
I’m not doubting the science, but we want colder air going into the turbos; is that bc if we’re sending hot air we’ll get less psi boost?
or is it that colder air is denser and will have more oxygen to burn in the engine ?
is this correct in theory
12psi of 40 degree air will result in more power than 12psi of 90 degree air?
thx
Edit
or is it that colder air is denser and will have more oxygen to burn in the engine ?
is this correct in theory
12psi of 40 degree air will result in more power than 12psi of 90 degree air?
thx
Edit
Member
Joined: Mar 2023
Posts: 161
Likes: 32
18 c63 s sedan
Colder the air the more dense it is, the more oxygen to burn. Cooler air getting into the chamber means more fuel can en added so more power.
with turbos by compression of the air, it naturally heats up. This is why we use intercooler. Be it air to water or air to air. So after compression by the turbo, cool it down with intercooler and into the chamber it goes. At a cooler denser temp.
a big effect as well is hotter air can lead to pre detonations easier then cooler air. So the computer has to pull timing-boost-or both. Not optimal.
in theory all else equal 14PSI of much colder
ambient air will help make power then 14PSI in Florida heat.
with turbos by compression of the air, it naturally heats up. This is why we use intercooler. Be it air to water or air to air. So after compression by the turbo, cool it down with intercooler and into the chamber it goes. At a cooler denser temp.
a big effect as well is hotter air can lead to pre detonations easier then cooler air. So the computer has to pull timing-boost-or both. Not optimal.
in theory all else equal 14PSI of much colder
ambient air will help make power then 14PSI in Florida heat.
Member
Joined: Mar 2023
Posts: 161
Likes: 32
18 c63 s sedan
Only if A factory intercooler cannot keep the charge air cool. Now if you tune the car and bump it up 8 more PSI, you may need to upgrade depending on the temps.
intercooler allow colder air and more boost safely. Our intakes are very good so the gains won’t be as massive. With intercooler you also get safety.
intercooler allow colder air and more boost safely. Our intakes are very good so the gains won’t be as massive. With intercooler you also get safety.
