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Old 10-15-2002, 11:32 PM   #1
luke91
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Are there any larger diameter MAFS's out there that could be used on an S13 SR20 without any major modification (ECU reprogramming, S-AFC, etc...)?  

Thanks

--luke
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'91 fastback.  '97 S13 blktop SR20DET.  Cstm Frnt Mnt IC w/ cstm 2 1/2" piping.  stnls stl fltr.  3" cstm DP & exhst w/N1 muff.  Walbro FP.  ACT 6 pck cltch.  Go Fast Bits crnk plly.  Ground Control coils.  KYB AGX shks.  12.98@106 w/g-tech pro.  17psi.  All work and fabrication done by ME
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Old 10-16-2002, 08:42 AM   #2
uiuc240
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</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (luke91 @ Oct. 16 2002,12:32)</td></tr><tr><td id="QUOTE">Are there any larger diameter MAFS's out there that could be used on an S13 SR20 without any major modification (ECU reprogramming, S-AFC, etc...)?

Thanks

--luke</td></tr></table><span id='postcolor'>
No.

With the Cobra, Z32, Q45, J30, etc. MAFS, you need to "trick" the ECU at the very least.

Something to consider: &nbsp;The flow restriction of the stock MAFS (what I'm assuming you're worried about) is not that bad. &nbsp;It's about a 2" hole and it only lasts for about an inch. &nbsp;After that, the piping is much bigger. &nbsp;This will have almost zero effect on your rwhp. &nbsp;The main reason for changing the MAFS is to accomodate more fuel and more range (stock MAFS can't read past the flow of air needed for about 275 rwhp).

Eric

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Old 10-18-2002, 12:01 PM   #3
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I'll be upgrading the turbo, soon. &nbsp;I had planned on using the JWT fuel upgrade program, but it's expensive. &nbsp;

I should be making around 320-350rwhp when it's done, so I figure I'll need 550cc injectors, and a MAFS. &nbsp;I already have a pump. &nbsp;

Is there a cheaper, easier way to do the necessary fuel upgrades that I will be needing? &nbsp;

thanks
--luke
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'91 fastback. &nbsp;'97 S13 blktop SR20DET. &nbsp;Cstm Frnt Mnt IC w/ cstm 2 1/2&quot; piping. &nbsp;stnls stl fltr. &nbsp;3&quot; cstm DP &amp; exhst w/N1 muff. &nbsp;Walbro FP. &nbsp;ACT 6 pck cltch. &nbsp;Go Fast Bits crnk plly. &nbsp;Ground Control coils. &nbsp;KYB AGX shks. &nbsp;12.98@106 w/g-tech pro. &nbsp;17psi. &nbsp;All work and fabrication done by ME
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Old 10-18-2002, 11:13 PM   #4
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Don't, I repeat, DO NOT look for a cheap way out when it comes to tuning...GET RID OF THE MASS AIR...it is NOT a good match for turbocharging. &nbsp;Save your money until you can afford some type of stand-alone ignition and fuel management system. &nbsp;To HE!! with JWT and their stupid reprogrammed ECU...why would you not want the ability to change all your settings by yourself instead of paying those slow ba$tards to redo it everytime you change something. &nbsp;In the end, you would proabably spend more.
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