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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 01-27-2002, 11:34 PM   #1
MrMigs
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Most of you have probably been to a few websites that teach you how to make a custom cold air intake for certain cars.

Basically, mine starts from the MAF sensor and ends at the fender with a nice cone filter from 3A Racing (K&N out of stock at Kragen).

It's actually a pretty easy thing to do -- all you gotta buy is about 3 ft. (room for error)  2 inch inside diameter ABS straight piping, 2 90 degree bends, ABS couplers, and if you want, some ABS glue (not really necessary tho).

** The hardest part of the experiment was thinking of something to use for the MAF sensor adapter. I was browsing the internet, and I found a tutorial site that used an object that looked like a pipe with a circular plate attatched to the bottom. I went to Home Depot and found something in the plumbing section called ... get ready ... prepare yourself ... a shower drain. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>

All I had to do was drill 4 holes on the drain that matched up with the screw holes on the MAF sensor.

So, the adapter was now connected to the MAFS. Next, I used a coupler to join the end of the adapter to a (approximately) 8 inch pipe. That pipe was connected to a 90 degree bend (the straight pipes and the bends connect strongly by themselves -- no glue or couplers needed). This bend was connected to another 8 inch pipe that was directed downward -- through the hole where the resinator used to be, and down into the fender area. &nbsp;Another 90 degree bend was connected to this pipe, so that a hole was facing the front of the car. Finally, I connected my $30 3A Racing Cone Filter to the 90 degree bend using the supplied brace.

Long story, eh? Well, not all these steps were taken in this order. I just wrote it this way, so you could get a pretty good picture of what the whole thing looks like. If you still don't get it, I can take pictures with my dad's Polaroid Camera, scan them, and upload them somewhere. But yea, if you were wondering, I haven't gotten a chance to accurately test my &quot;mod&quot; yet because it's been raining, so the floor has been wet. Meaning, that whenever I &quot;punch it,&quot; I lose traction. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'> I'll post updates tomorrow if it's not raining.

Here's my total price list...
1. 5 ft. ABS piping (2 inch inside diameter).....~$2.00
2. 2 90-degree bends.....................................~$1.50
3. 3A Racing Cone Filter...........................$29.99 plus tax
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (at Kragen)
4. 1 piping coupler (2.5 inside diameter | fits
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; pipesw/ 2''id) &nbsp;...........~$1.00
5. 1 shower drain................................~$10.00

I think that's about all there is to it. I'll update this if I find any mistakes <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'> If anybody plans on trying to do what I just did, or if you have any tips, plz reply.

By the way, you can buy most of this stuff at your local hardware store; just make sure they have a plumbing section. However, my local hardware store didnt have any shower drains, so I had to drive to Home Depot and buy one there. As for the air filter, that's pretty much up to you. The only reason I bought a 3A Racing filter is because it was cheap (relatively) and because Kragen didn't sell any K&amp;N Cone Filters that would fit the custom piping (they have a low supply of K&amp;N stuff).

I guess I saved myself... what... like a hundred dollars -- something like that. Besides, it's better than stock, and that's what I was trying to accomplish with this project -- something that's better than stock and cheaper than Injen <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>

On another note, some guy in a civic cut me off, so I started tail-gating him for a while through neighborhood streets. All I can say about this is that heel-toe'ing it through turns really helps. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'> Anyway, we came up to a stop light -- it was red for like 2 seconds -- but he ran it anyways. Either A). I scared him |or| B). He wasn't paying attention. I'm pretty glad he didnt get into an accident - no traffic.



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Old 01-28-2002, 12:55 AM   #2
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well, here's my ultimate struggle... &nbsp;i still think that the piping that goes across the radiator does NOT help the cold air at all, so my &quot;intaking from passanger side&quot; is yet to be finished... after i get a sleadge hammer for the battery bracket...

p.s. where's my video! hand it over or die, mrmigs... <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>
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Old 01-28-2002, 09:43 AM   #3
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Putting the pipe infront of the radiator does provide a lot cooler air. &nbsp;When your engine is running hot, touch the fins of the radiator. &nbsp;You'll find there's no possibility of burning. &nbsp;Plus, when the fan kicks in, it sucks more air through the radiator, and that air is noticeably cooler than what's inside your engine compartment. &nbsp;
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Old 01-28-2002, 10:53 AM   #4
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i think SCC's dyno test of the injen (short ram i think) intake producing 5hp proves that you can make power with piping in front/across of the radiator
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Old 01-28-2002, 01:24 PM   #5
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Meowth, Erik said that he hasn't had his Video Studio or whatever class yet. He'll be back from senior retreat on tuesday or wednesday, so I'll ask him again later.
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