Last night I dropped on a 14" open element assembly to replace the stock setup. It looks much nicer I'm confused about the lots of hot air VS a little cold air tradeoff.

More importantly, I am wondering how I get a 3" filter on there. I am using the little paper 2.5"? one that came with the assembly at the moment. The top of the aeembly barely clears the bolt. In fact the wingnut just fits by a hair. Can I use a longer bolt (to replace that weird bent one) or will it have clearence problems?

I tried to use an assembly who's bottom was angled down to accespt a bigger filter but the distrib was in the way. Am I doomed to use a 2.5" forever? I'd really rather get a 3" K&N in there if I can.

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James D Montigny
1992 Pontiac Firebird 5.0
Bone Stock (For Now)

The members of this board are enthusiasts, not experts.
Please consider everything that you read an opinion.

 

The main clearance problem is getting it to fit under the hood, which isn't far off the top of the air cleaner stud. I have used commonly available drop-base 14x3 air cleaners on similar carbureted applications and they usually fit just fine.

If you're looking to add cold air to your open element air cleaner check out this site:

ramairbox.com

 

the tbi intake is abotu 1/4 inch shorter than the carb intakes were. you can get away with a 14x3 flat base open element, the stud will just barely touch teh insulation on teh hood usually.
the quantity of air that you pick up is so much great than the volume of air that the stock air box can flow that the temperature becomes unimportant. even if you gut teh thermac out fo the air box the tubing is still too small to be of much good, then you have the riser ring which forces air to funnel in as well, causing even more flwo disruption. non of this is int eh way with an open element.

later
tim

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NJ SPEEDER
91 Camaro RS
305TBI/700R4
12's Coming Soon
2nd Annual East Coast F-Body Nationals
July 20,2002
www.geocities.com/njspeeder
My MAFB.ORG Home Page
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

The ramairbox.com designs are interesting, I don't think it's something I realy need to pursue. Not with my current setup anyhow.
Actually, given the redline on a stock 305 the 3" is probably about as much as I will need. Granted, I may go with an alternate design if/when I get working on the heads/cam.

And I refuse to put any HomeDepot ductwork under my hood as an airscoop *yuk* Been there, done that ... never again


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James D Montigny
1992 Pontiac Firebird 5.0
Bone Stock (For Now)

The members of this board are enthusiasts, not experts.
Please consider everything that you read an opinion.