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Considering the AEM isn't really out yet this question might be a bit difficult to answer. The Racing Beat REVi I ave seen a few times & it is top notch. Great quality, as pretty much all the products from RB.
RB Fr/Rr Sway Bars, RB Fr Sway Bar Endlinks, RB Springs, RB Spark Plug Wires, RB Oil Cooler Screens, RB REVi Air Intake with Ram Air Duct, Centerforce Clutch, MS Fr. Tower Shock Bar, MS Rr Strut Bar, Goodridge SS Brakelines. Hawk HPS Brake Pads, SR Motor. Flywheel, Agency Power Pullies, RP Super Cat, Stern 19" ST 2 Touring Wheels, Falken FK452 Tires, Axial Flow Short Shifter, JIC Titanium Exhaust, Kyokugen Alum. Lugs, PWR Alum. Radiator, Greddy Oil Pan, & more
well they seem to be saying that the aem v2 uses some kind of resonance tuning. that would be good i suppose on cars that do not already utilise it. i wonder if it would be counter productive on the renesis intake. if they did not thoroughly test and design for this specific car the "sound waves" could cancel each other out. or am i just plain wrong here?
the revi isnt a CAI like the aem one, so if u want a CAI (which i wouldnt get cuz of rain) you should go for the aem one
rain will have the same effect on an intake whether it is cai or not. the problem with a cai is standing water on the road where the filter of the cai is submerged sufficiently enough to suck enough water into the engine to hydrolock the motor.
i have had 3 civics, and everyone had an aem cai, and not one of them had any problems with sucking up water into the motor. if you are approaching any standing water, then what you should do is let off of the throttle, as water has siginificant weight and as such would require lots of vaccuum to overcome gravity to suck enough water up the intake to cause damage. from what i have seen of the aem cai for the rx-8 and its placement, we would need to run through approximately 8-10 inches of standing water before we would have a problem.
anyone here willing to try running through that much water, with or without a cai ?????
RB is developing something similar to the AEM version. Interesting.
From RB website - "Ram Air Intake - We are currently developing a Ram Air Intake Duct for use with the REVi (and most other aftermarket) intake system. This duct will collect air from the nose opening and feed it directly into the intake mouth. Tooling is currently being produced from the prototype master, we hope to have this duct available later this spring."
Purchased 10/22/03 - Tein S-Tech - RP Short Shifter - Mazdaspeed CAI - JIC 4-pt. F & R Strut Bars - RX7Store.net Hi-Flo Cat - Racing Beat Exhaust - Hayame Full Engine Dress Up Kit - KD Burnout IV Type II Kit - Evo-r.net Eyelids & Lip Spoiler - 19x8.5"/ 9.5" Black Falken Koblenz - Falken ST-115 245/35, 275/30/19
ugg... putting in simplistically, flow through something like an intake is dependant on 3 things - pressure at the entrance, pressure drop throughout the system, and pressure at the end. To increase flow, you need to: make the entrance pressure higher (then atmosphere), lower losses in the system, or make the exit pressure lower (already a vacuum). You do this by: placing the entrance in a zone of high pressure (front bumper), making the system flow better (new intake), or increasing displacement (engine pulls more vacuum).
anyway, its rediculous to say a "ram air" setup is worthless despite it not really ramming air...
from an engineering standpoint, it would be pointless to develope a "true" ram air setup for our cars as the gain from a hp standpoint is pretty negligable. probably in the neighborhood of 1 horse power gain at our top speed of roughly 150.
from a marketing standpoint though, it will probably be a gold mine, as people will see, "hey, i can add a RAM AIR setup to my car", not understanding the principles to this, and thinking that it will be a huge increase over stock (this may or may not be true) and other intakes on the market.
i have seen poor examples of a ram air setup sold in the form of the weapon r add on. the quality of the kit made me laugh, and the tubing diameter was smaller for the ram air than a stock 83 civic exhaust pipe.