Quote:
Originally Posted by gmookher
So the stock intake apparently scavenges really well where the dip in torque is. likely some of the airraid and other cool looking intakes will reduce midrange power. I am also not convinced till I see a 3rd party dyno run before and after. I'd love to try out thios stuff and use vivd's dyno; but they seem to be pretty much a Agency Power shop; and my contact with them didnt seem like they were into testing or installing other brands...
cavitation is very desirable when tuned to happen at the right rpm range-car designers employ some pretty fancy tools to measure and tune that when building a intake
so racerboy pipe with the cone that works in so many other applications worsens the DI motors inherent TQ issue with regards to port injection maps
I'm betting the airraid makes things too rich at lower rpms, and a proper tune done on a car with an air raid box installed is what a visconti or a don need to get crackin on to make this airbox fly or not; the posts from Perrin from a while ago suggest making a better flowing box is hardly worth it unless done right.
I am dropping in a foam filter for now, till someone truly works out the TQ, richness, and drivability issues presented when replacing the OE airbox with one with less optimal air flow. Unless you are soley tracking it and dont need driveabilty at 3000 rpms, but seems making a design worse is never good
Those of you who have any background in physics, fluid dynamics is NOT an easy class. Excersize alot of skepticism when buying exhaust and intake. I avoid too many bends, sections welds, I avoid vendors who are jumping on this bandwagon to try and make a buck. I would bet air raid could benefit finding a FA20club/visconti/don and having a tune built around it seems like the next step, as users all agree 'it pulls up top'
Is that just a relative observation to it NOT pulling down below? only a 3rd party dyno run will tell
Those of you posting feedback- thanks from the rest of us.
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There will be dyno comparisons done by myself when my other intake arrives. I'm going to do a couple more logs and maybe a video now that the ECU is back to stock, then put the stock intake back in. You should really review the stuff over in the bog thread. We could use some educated input!