how does the diameter of a throttle body effect performance?
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More airflow = more oxygen. More oxygen = more power (when combined with the proper amount of fuel...)
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from what ive heard it has something to do with the mass air flow that gives more hp
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oo speaking of throttle bodies....does any one know if the F22 and H22 plenum are the same?..reason i ask is because if i got a throttle body for my current f22 would i be able to use it on my H22 when i drop it in?
im trying to make the best of my F22 at the mo because the H22 aint for about another year
“I’d rather lose by a mile because I built my own car, than win by an inch because someone else built it for me. Your car is your story, so don’t let someone else write the book.”
— Mighty Car ModsComment
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No, they are not the same. The F22A6 plenum will bolt to the H22A runners... but you'd be swapping on a smaller plenum. Not worth the tradeoff for a modified throttle body.
If you're putting the H22 in, don't waste money on the F22. If the H22 is a year away, save for a year... and do some SERIOUS upgrades with that money you saved. Don't piss it away on an engine that you're going to yank out.
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so would a bigger diameter would be beter?Comment
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would a bigger diameter would flow more air?
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sounds like yes, aight thanksComment
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lol yeah bigger diameter is better.
the more air you can flow into the engine the more power it will create.
BUT you might need to look into what else would go good with the larger throttle body. if your gona do one thing you may aswell look at doing it all...money willing. its just to ensure your getting the best out of it is ill
“I’d rather lose by a mile because I built my own car, than win by an inch because someone else built it for me. Your car is your story, so don’t let someone else write the book.”
— Mighty Car ModsComment
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Just remmeber that the engine is a giant air pump. In order to make power, it has to be able to breathe... in and out. You'll only make as much power as your biggest bottleneck allows. A big throttle body will allow more air to come in, but if the engine can't get that air out, you're not going to see any benefit. If anything, you might actually lose power.
Don't start slapping parts on your car without knowing what they do, and how they interact with the other parts installed.
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a stock camshaft h22 doesnt need a bigger throttle. When you get into bigger camshafts, sure.Comment
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There is no point in increasing the throttle body size if it does not match the diameter of the intake manifold. Besides, if your motor does not have the capability to flow more air (from a larger cam, longer stroke, bigger bore, forced induction, ect..) then increasing the throttle body diameter on a stock motor will most likely hurt performance. A larger diameter will decrease the velocity/momentum of the air being drawn into the plenum.Comment
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