I've been wanting a better intake tube for my CJ123 for quite awhile. At one time I had the stock intake tube, and then an SCJ adapter set-up that wasn't all that smooth inside. I decided to try and make my own tube. I'm pleased with the way it turned out. Now I just need to get this beast on a dyno to dial it in.
I purchased a 12" length of 5" O.D. aluminum intake tubing with a 1/16" wall thickness. I had to really squash one end in a vise with some plates to get the oval shape on the one end. I also used a band saw for the cuts and a belt sander to clean it up for a nice fit. I wanted about a 1/4" space on both ends.
Test fitting with a 3" coupler that I later trimmed at an angle.
Made up the outer sleeve with some UPR fittings. Sleeve prevents heat transfer in addition to holding the fittings.
Inside look.
Slipped the sleeve on.
Tube installed. I just want to later replace the stock hose clamps near the TB with something just a little wider. Got 1/2" clearance to coil cover.
I did have to trim up the bucket to try and keep things somewhat straight. Getting a better seal is a project for another day.
I purchased a 12" length of 5" O.D. aluminum intake tubing with a 1/16" wall thickness. I had to really squash one end in a vise with some plates to get the oval shape on the one end. I also used a band saw for the cuts and a belt sander to clean it up for a nice fit. I wanted about a 1/4" space on both ends.
Test fitting with a 3" coupler that I later trimmed at an angle.
Made up the outer sleeve with some UPR fittings. Sleeve prevents heat transfer in addition to holding the fittings.
Inside look.
Slipped the sleeve on.
Tube installed. I just want to later replace the stock hose clamps near the TB with something just a little wider. Got 1/2" clearance to coil cover.
I did have to trim up the bucket to try and keep things somewhat straight. Getting a better seal is a project for another day.
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