Quote:
Originally Posted by Crusard
I seem to be changing my mind everyday with what I read! So intake would be 5hp/tq tops, unnoticeable feel?
Budget is limited, mostly because of massive import tax and shipping, so I've gotta think again I guess.
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On many cars especially older they essentially have a hot air intake sucking air from engine bay and changing the placement of where the intake draws air to a much colder air path generates more power from sucking in colder air. Our stock intake is already a CAI with utilizing a “snorkel” so we already have that benefit.
So the only way to improve over stock is to either make the filter less restrictive (drop in filter) or increase the filter surface area (aftermarket system) in order to have either of these generate more power however it has to be a limiting restriction with the engine actually able to suck in more air than it already is (filter not large enough or flow enough) I believe once you have improved the exhaust flow (catless header) and are able to change the intake/exhaust cams duration with tuning then it is possible the stock system might be a very minor restriction especially in higher rpm.
Performance air filter like K&N is about 1ftlbs/1.5whp
TRD intake is similar to OEM but has an air filter angled in a larger box to have Larger filter with more surface area, grimmspeed utilizes a cone filter to have more surface area. Both are about 1.5wtq/2whp
Perrin is the only “pure” cai on this list having the filter placement relocated to where the snorkel end would normally be and thus now has way more room for a very large cone filter about 1.5x the size of grimmspeeds. Is about 2wtq/2.5whp.
Some people mod their car and have zero measurable acceleration improvement but swear up and down they can “feel” more power...
others can’t “feel” any difference unless its at a minimum 6+whp or maybe 2/10th off 0-60.
So you won’t “feel” any difference from a CAI (or it’s all in your head) BUT with NA every last little bit does add up. NA is a game of inches not feet... max potential is very limited and low compared to FI.
If you have the funds go for it, but there are “better” mods to do 1st.