Redneck strikes again! Sorry I've been away from the board for a few days, more on that at the bottom of this post.
I needed a BIG K&N to match the 38mm Amal Mark2 carb - BUT - I wanted to retain the stock appearance of the side covers. I wound up keeping the stock battery location, too!
The K&N R-1380 is BIG for the bike. It's for a small tuner car - 2-7/16 inlet, 5.5" diameter at the big end, 4.5" diameter at the small end, 4" long filter media. Seemed just right, and I bought it cheap on ebay. It fits over the coupling end of a 2.5" PVC pipe, but it's a tight fit. And what do you know - the stock airbox boot, which I turned around to match the AMAL, fits over a 2.5" PVC pipe! Off to Lowes I went, and picked up a 2.5" diameter PVC sweep 90 fitting, plus a smaller brass elbow for the crankcase vent. Near perfect fit!
This air filter, combined with the Screamin'Eagle, are a perfect match to the 38mm Amal Mk2 ala Lancer. Plenty power, and way more speed than I want now. Email me if you want the needle position, screw settings, etc.
Here's what I rigged up:
With labels. I painted the fittings black of course. Should have left them white & brass for clarity in the pix:
No labels:
Zoomed and brightened, man I should have left the parts white for photo-taking. Here you can see the smooth sweep of the PVC fitting:
Closeup of crankcase vent fitting (brass elbow threaded and glued into the PVC sweep 90)
View from top:
Side end of stock airbox, sliced off with bandsaw, fastened by the stock bolt at the top and self-tapping sheet metal screw to the frame (thru rubber bushing) on the rear side of the cover - lots of trimming was required to fit this without crowding the K&N.
I know, low light and black parts are hard to see but you can make it out. The other side is nearly identical, drilled out for ventilation except for the stock sparky box location.
Can you see a BIG K&N in there?
Sorry I've been away for awhile, got another project car...Not part of the K&N install, but fyi - '70 Dodge Charger:
Enjoy bike mods the redneck way!
Better pics, any size you want, at:
http://photobucket.com/albums/y114/bobo383/Let me know if you can't make the photos work - I'll email them. Maybe even take some in the daytime!