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aFe Momentum GT CAI
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Just addressing the "forward facing Ram Air" comments. Ram Air sounds nice, but the math shows maybe a 0.7 psi gain at 200 mph. And that would be with a very well designed forward facing scoop! The fact is that what most cars have is a Cold Air intake. The air temperature has a much greater effect on hp than any static pressure increase...period.
Obviously, we aren't cooling the ambient air temperature, but we are trying isolate ambient air from underhood temps. The cold air intake on the ST is well designed and anyone selling a go-faster product advertising "ram air" are snake oil. Such products should also be checked for any propensity to inhale water (like when it's raining) and where that moisture will end up.
As far as the intent of the various intake filtering products e.g. FenFab or aFe, that is purely a function of reducing the pressure drop across the filter which is a function of three things:
How well sealed it is to the cold-air source.
The overall surface area of the filter media
The porosity of the filter media.
When you evaluate such products, look at those three factors.
Obviously, we aren't cooling the ambient air temperature, but we are trying isolate ambient air from underhood temps. The cold air intake on the ST is well designed and anyone selling a go-faster product advertising "ram air" are snake oil. Such products should also be checked for any propensity to inhale water (like when it's raining) and where that moisture will end up.
As far as the intent of the various intake filtering products e.g. FenFab or aFe, that is purely a function of reducing the pressure drop across the filter which is a function of three things:
How well sealed it is to the cold-air source.
The overall surface area of the filter media
The porosity of the filter media.
When you evaluate such products, look at those three factors.
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It was also on stage 4 CRP turbos. I take it the benefits will be even less on the stock turbo's with or without E50 mix?
Also, if I recall, arent the E85 pump stations up to E85? My local one is 51% to 83% ethanol, so not exactly "E85" 100% of the time. Im pretty sure that alone makes a difference on the dyno. Unless each station is different?
Also, if I recall, arent the E85 pump stations up to E85? My local one is 51% to 83% ethanol, so not exactly "E85" 100% of the time. Im pretty sure that alone makes a difference on the dyno. Unless each station is different?
Dont have an FB so cant see all the posts. Even then, you said lower grade fuel wont see the full increase. Which goes back to my post, E85 can be 51% thru 83% ethanol. So some days the E50 mix might not even be E50 at all, or even close which can be a nice change on dyno power vs other days.
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