Air box mod done

[itstuantran_imp]

The two snorkel intakes total about 4.61 square inches.

The “velocity stack” area of the snorkel is about 4.90 square inches.

So, the snorkel restriction on the CB1100 is minor (~6%).

However, more out of curiosity, I used a hacksaw to remove the “cap”, abut 3/8” thick, from the top of the snorkel, directly above the “velocity stack”, then remounted the snorkel.

If I can get to the nearby mountains before the predicted 45 MPH wind gusts are forecast, tomorrow, I will advise if there is any appreciable difference.

The “cap” can be glued back on or the area covered with duct tape.

The only significant concern, on my part, is if I am caught in heavy rain…which seems to be a main purpose of the snorkel. Intake silencing may be secondary.

My 1967 CB160 would die in heavy rain, with an exposed factory air filter element directly under the side cover.

The CB160 was a daily ride, rain, snow or ice, from Feb-Apr 1967…then Uncle Sam sent me on an all-expenses paid vacation to Southeast Asia. But, at age 70, I have become much more of a fair-weather rider!

I am not set-up to post photos, but if an interested member would like to PM their email, I will send photos.

Is this what you meant. I have cut the snorkel into 2 pcs and it does sound a bit difference.



And this is the one i'm going to buy to replace the stock snorkel