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Old 05-14-2008, 07:57 PM   #1
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Originally Posted by jarodsfisher
willwren, have you heard of anyone using abs plastic piping instead of abs? just curious. Also, is a fenderwell placement of the filter more or equally effective as building a box? One last question, do cai'* increase mpg or just power?

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ABS of any type is a bad choice for an intake. It heatsoaks well, and cools slowly. In addtion, the joints are typically disrupting to natural airflow, costing you velocity and natrual flow.

FWI filter placement is superior to anything you can do with a well-shielded CAI simply because the filter is no longer in the hot engine bay.

CAI'* if PROPERLY shielded and FWI'* increase MPG'* and power both.
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Old 05-14-2008, 08:04 PM   #2
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I mean abs as opposed to pvc.
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Old 05-14-2008, 08:15 PM   #3
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Both are very poor choices. Get away from Home Depot for your intake.
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Old 05-14-2008, 08:29 PM   #4
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So if I go to O'Reilly'* or Autozone and just get some of their "generic" intake pipe and a K&N, then route it into the fenderwell, that should increase both hp & mpg?
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Old 05-14-2008, 08:50 PM   #5
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I don't know how you're going to route a metal pipe into the FW area.

The motor flexes in the mounts under braking and accelleration.
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Old 05-14-2008, 11:52 PM   #6
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Another thought, would it do any good, to gut the stock air box and use that is my "cool air box", would that keep enough engine heat away from the intake? Also, replace the hose that connects the air box to the intake, with one of the "ricer pipes" and put a K & N conical filter in the stock air box. Would I gain any mpg. Keep in mind I am looking to gain mpg as opposed to gaining hp. By the way what kind of mpg gains are typically gained by these types of upgrades?
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Old 05-15-2008, 11:01 AM   #7
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The stock conversion you mention has been done. Ultimately, it'* not as effective as the INTENSE FWI, but it is better than stock.

Your key areas are:

1. Smooth pipe, and ditch the accordian. Smooth transitions, too.
2. GOOD QUALITY filter. No ricer brands.
3. Shield the filter from the engine bay heat.

MPG gain depends on alot of factors. Some cars do better than others, and your 'state of tune' matters. On a well-tuned car in the right conditions, you can gain 1-2mpg. But some of that depends on supporting mods (primarily high-flow cat).

Also keep in mind that while freeway mileage increases, in some cases city driving may suffer. Primarily because you USE the new power you feel.
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Old 05-15-2008, 11:28 AM   #8
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My car is stock and most likely to remain that way. I am just wanting to know if gutting the stock air intake box and putting a smooth pipe from the box to the intake is going to do enough to make a noticable mileage differance? Also would I gain mpg by switching from the K&N "stock" square filter to a conical?
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Old 05-15-2008, 04:24 PM   #9
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You can do this with 2 45* bends:
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You just have to relocate the charcoal canister behind the headlight and extend the canister'* TB vac line to it.
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Old 05-15-2008, 05:02 PM   #10
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95naSTA, what did that do for your mpg?
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