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#1 |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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You can add a valve to the intake piping to open if the vacuum goes above a certain value (say vac over 22InHg). OR they make cylindrical filters with a clamp on both ends which you can add to the pipe further down... they're small enough that little air will be pulled in through them as long as the primary filter isn't clogged or submerged (AEM makes one).
EDIT: http://www.aemintakes.com/air_bypass_valve.htm
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#2 | |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Sure, any piping in the bay is subject to some heat soak but when the filter is pulling in cool air it's affect is negligible; Besides, it's nothing a good wrap or ceramic coating won't cure to a very significant degree. My soda is still nice and cool when it reaches my lips through the straw even though it's being pulled through 92? air... But put that soda in pot on a hot stove and it's another story (whether you stick in another, smaller straw and blow bubbles or not). 72?? Isn't wind chill great? You know that even if it's 100? out you can still form ice inside the intake? That's why the TB and ISCV have coolant lines run to them. Sorry to say you're not defying the laws of physics though. Anyway, the point you're missing is that it could be much better all around for the measly cost of a couple feet of pipe with a bend in it... and it generally involves no more effort to install. Actually, the stock air box is best of all... it breathes just fine for up into the 300's is CAI, easy to replace, has after market filters available and there's no extra work to make it fit. A filter under the fog light is nice as you can fit up to 5"x7" without deleting the fog light... if you delete the fog light you can fit a whopper 7"x 10" or so... I don't remember the specifics but you can fit some real nice, big filters under there. I'm not trying to sound like a dick (It just comes naturally, really... can't help it); There's really nothing redeeming to this mod... In my opinion it's nothing more than a weak attempt to fix what was broken by deleting a better system. zMrManz: Well, an AEM DryFlow will run you about $60. The AEM Bypass Valve will run you about.. you guessed it: $60. The AFM adapter for the AFM will run about $10 on eBay or Amazon. And you'll need to find a piece of pipe that's 2.75" dia (If I remember correctly, hopefully someone else will chime in with a measurement.) with a 90? bend in it and about 6" straight on one side or the bend and 12" coming off the other... Cost will depend where you get it, $10 or $15 give or take. So you're in for less than you'd pay for an Apex'i Power Intake or the K&N FIPK (both just filters sitting in the engine bay). Use the bypass valve as the coupler to connect the pipe's 12" leg to the AFM, put the pipe through the hole the stock airbox breathed through so it points down. Pull off the fog light, install the filter, put the fog light back in and tighten everything down. If any of the piping is too long then cut as needed; It's not going to be seeing any boost so loosing a rolled bead isn't going to hurt anything (and clean out any metal shavings/dust thoroughly before final assembly and mounting). I'd buy the adapter plate first so you know what size to get for everything else... anything over 3" and you'll be doing some cutting. All of the MKIII's I've installed full intakes for didn't use the AFM and ran 3" or larger piping... sorry I can't be of more help there. I STRONGLY recommend you put some rubber between the pipe and the lip of the opening. I've seen piping get cut through creating a nice large turbo killing sliver of aluminum; Since seeing that I usually take some fuel line and cut it lengthwise and glue it to that lip first.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. ![]() Tip Jar ---> ![]() |
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#3 |
Super Moderator
Join Date: May 2007
Location: Billings, Montana
Posts: 1,034
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I know that the Spectre ones that most auto part stores sell fit the 7MGTE KVAFM, you do have to drill new holes for it though. Be sure to get the one that says it fits Mitsubishi's and some other cars. It's the one with the thick black spacer (like 1/2"). The other one (with the small spacer) works for the N/A afm
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1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels |
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