WORKS Evolution X Air Filter
Those gains are the same as that test in the "another x on our dyno" thread, where when they removed the filter all together, the car saw about 18 hp peak increase, but almost a 40 hp gain at redline! That means that your filter flows about as much as not having any filter at all! Awesome! Are you guys working on an intake system with full piping that leads all the way toward the turbo, and ic pipes?
Those gains are the same as that test in the "another x on our dyno" thread, where when they removed the filter all together, the car saw about 18 hp peak increase, but almost a 40 hp gain at redline! That means that your filter flows about as much as not having any filter at all!
Something else is going on as it also leaned out more with the filter than without a filter. I'm thinking the new hotwire MAF needs some turbulance/restriction to read correctly.
That thread called "another X on our dyno" is the same exact X used in works testing.
Well, the gains are there, though, so what's the deal? I can't imagine that the air/fuel ratios aren't accurate, because the car wouldn't be making these gains from being leaned out the way that it is. Something strange is going on... but could it not be that the works filter just flows that well? Seems impossible to me too, but I'm just trying to figure this out. I wonder if the ecu is reacting to the mixture leaning out by trying to richen things up with the increased power, and that that's why the air/fuel still ends up being rich even with so much added air. The stock fuel system is pretty damn burly, so maybe the ecu is taking advantage of this?
Last edited by STi2EvoX; Feb 14, 2008 at 12:22 PM. Reason: typo
Well, the gains are there, though, so what's the deal? I can't imagine that the air/fuel ratios aren't accurate, because the car wouldn't be making these gains from being leaned out the way that it is. Something strange is going on... but could it not be that the works filter just flows that well? Seems impossible to me too, but I'm just trying to figure this out. I wonder if the ecu is reacting to the mixture leaning out by trying to richen things up with the increased power, and that that's why the air/fuel still ends up being rich even with so much added air. The stock fuel system is pretty damn burly, so maybe the ecu is taking advantage of this?
The nice thing is that, like I stated above, this EVO X used for testing @ WORKS is the exact same EVO X we had on our dyno in that thread you mentioned.
It will be coming back on our dyno with the new goodies and we can show the before/after gains of the new filter as well. More data is always good right?
nebo's X = the ***** and soon to be dyno queen.
razorlab, i'll be at your shop probably next friday or saturday. Will be in San Francisco for business on friday and depending what time i'm done, i'll swing by, if not friday then saturday.
WOOT WOOT more testing FTW
nebo
razorlab, i'll be at your shop probably next friday or saturday. Will be in San Francisco for business on friday and depending what time i'm done, i'll swing by, if not friday then saturday.
WOOT WOOT more testing FTW
nebo
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Those gains are the same as that test in the "another x on our dyno" thread, where when they removed the filter all together, the car saw about 18 hp peak increase, but almost a 40 hp gain at redline! That means that your filter flows about as much as not having any filter at all! Awesome! Are you guys working on an intake system with full piping that leads all the way toward the turbo, and ic pipes?
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