Gene's DIY CAI thread
 

Hey guys, while Gene aka 92 SVX was over working on his interior wrap project I spotted a very nice and cost effective mod he had made to his car. A low cost cold air intake (CAI) made from off the shelf parts found at your local parts store. I believe the total cost is around $75??

I have now dubbed his intake the "GDIY" (pronounced Gee-dee) mod I am hoping I can encourage him to do up a "how too" with at least the part numbers needed to copy his work.... :cool:

Here ya go Gene.. your very own mod. You deserve it because its simple, cost effective and a classic case of hot rodder ingenuity.

C'mon Gene!

Re: Gene's DIY CAI thread
 

Thank you, ok I will attempt to explain it though Im better at doing then explaining.

Re: Gene's DIY CAI thread
 

Ok Here it goes.

First I started by cutting out the Accordion section of the stock tube, for 2 reasons first it allows lots of movement, and second using smooth walled tubing should help air flow.

I cut it as close to the idle control nipple as I could and still put a silicon coupler on you can cut it with a hacksaw. I think I used tin snips. I used a 3" silicon coupler from oreilly's. Part # 8771
http://images.oreillyauto.com/parts/img/sct/8771.jpg $7.99 needs 3 for my setup. I also needed to heat it up just a little to open enough to go on.
Then into that goes a 22 degree bend part #8728
http://images.oreillyauto.com/parts/img/sct/8728.jpg
at $11.99. This will connect to a 4" straight piece part #8708 using the clamps that come with all these pieces $8.99
http://images.oreillyauto.com/parts/img/sct/8708.jpg
Which then connects to a 45 degree bend
http://images.oreillyauto.com/parts/img/sct/8738.jpg

Part #8738 $11.99. Using the second of the silicon couplers this attaches to the stock MAF again needing some heat to fit. Then maf adapter part number #81413 $13.99
http://images.oreillyauto.com/parts/img/sct/81413.jpg
Discarding the plastic piece as it is for a smaller diameter piping. You will need to line up the inside and drill new holes to fit your maf.
Then the maf adapter couples to the 90 degree bend part #8698 $10.99
http://images.oreillyauto.com/parts/img/sct/8698.jpg
Then that attaches to a 6" straight part #8718 $9.99
http://images.oreillyauto.com/parts/img/sct/8718.jpg
Then put your filter on the end. I had a filter so that was not included in the price but if you need one part #8136
http://images.oreillyauto.com/parts/img/sct/8136.jpg
cost $24.99
With out the filter it was $91.99 A little higher then my initial estimate.
That is what I did as I pieced them one at a time if you want you can get the short ram part # 8208 for $39.99
http://images.oreillyauto.com/parts/img/sct/8208.jpg
comes with one coupler and 2 4" and the 45 bend which means you would only need the 22 bend the 90 and 2 couplers. You do need a straight piece inside the fender but the 4" may be enough I had the 6" so that is what I used.
Using the Short Ram without filter its $78.95
http://localserver.no-ip.biz/Public/...I%20entire.jpg

Re: Gene's DIY CAI thread
 

I also went and did the crank case breather mod.

http://localserver.no-ip.biz/Public/...20breather.jpg

Re: Gene's DIY CAI thread
 

Nice, great write up Gene!

Re: Gene's DIY CAI thread
 

I wonder if this is a direct fit to our stock MAF?

http://i17.photobucket.com/albums/b86/BVM03/maf.png

Re: Gene's DIY CAI thread
 

I have been looking on ebay for any CAi's that look as though they have a similar layout to the SVX.

Back in my Fiero days, it was discovered that a CRX CAI was a direct fit on a Fiero V6.

Re: Gene's DIY CAI thread
 

Looks good gene. What's the purpose of the tube on either side of the maf? just a bypass?

Re: Gene's DIY CAI thread
 

Yes a bypass, I read on here a member did that because the stock maf is the limiter this will allow some unmetered air at wot supposed to give a small boost in power. I thought it isnt hurting why not.

Re: Gene's DIY CAI thread
 

I used a 94-97 Honda Accord Cold Air Intake off ebay on my 2001 impreza RS.

http://images.channeladvisor.com/Sel.../55-0131PR.jpg

I just sawed off that last bend on the end that I didn't need.

http://i923.photobucket.com/albums/a...hondastyle.jpg


http://i923.photobucket.com/albums/a...lowstyle01.jpg


Holding this pipe in my hand has me thinking...
If I was to take it and flip it over.. would it .. maybe?
http://i923.photobucket.com/albums/a...ntakeinsvx.jpg

hmmmm.. photochop says maybe... if my svx wasnt parked under a snowbank...

Re: Gene's DIY CAI thread
 

Are you running a higher pressure fuel pressure regulator?
Without it you will be running way lean, at the lower RPMs.:eek:

Re: Gene's DIY CAI thread
 

Funny you mention the Accord. I was looking at the 90-93 Accord CAI on ebay. For $40 it may be worth a try!

Re: Gene's DIY CAI thread
 

Will running lean cause higher fuel consumption? It seems no matter what I do I can not get this thing to get better then 22-24 highway mileage.
The bypass has only been on 5-6 days I can just plug the holes. I am not running any higher pressure fuel at the moment. A mod I have been thinking about but not ready to get into.

Re: Gene's DIY CAI thread
 

About 100 years ago (around 2001) Mychailo did some testing with an actual WIDEBAND! And found out that the A/F ratios were very lean at idle and very rich at high RPM.
I was already running a higher pressure fuel pressure ratio regulator from an 2000 Legacy, (43.5 as I remember, compared to our stock 36.3 psi) and I "felt/tested" some improvement in accelleration!:D
He, Mychailo came up with the bypass mod which worked in conjunction with the higher PSI FPR to make a flatter, better A/F ratio for more better power.:)
This mod is probably better for the SVX people who cannot just buy a chip that adjusts the timing for evan better results!

Re: Gene's DIY CAI thread
 

I plugged them I am getting the ecutune stage 1 so it would appear I would not need the bypass presently.