Wildguzzi.com

General Category => General Discussion => Topic started by: Ncdan on October 14, 2016, 12:21:14 PM

Title: EV fork deflectors on a Calvin
Post by: Ncdan on October 14, 2016, 12:21:14 PM
Had any Calvin owners attempted to incorporate the EV wind deflectors to a Calvin. I do t mean to beat a dead horse on this subject just trying to get the wind blast off my face. Shame on the aftermath accessory companies for not including Moto guzzi with the jap bikes and Harley's. not kicking either as I have owned most every bike out there. Sorry for the frustration rant:(
Title: Re: EV fork deflectors on a Calvin
Post by: Sheepdog on October 14, 2016, 12:29:56 PM
I believe these will only work on a Vintage if the spotlights are removed or modified. I fooled around with some homemade defectors with mixed success. What worked for me was the installation of Vetter Pop-Vents on the shield. It evens out the pressure and reduces the updraft from the bottom of the shield. Far less buffeting, too.

(http://i28.photobucket.com/albums/c229/JamesBagley/1405f0f8.jpg)
Title: Re: EV fork deflectors on a Calvin
Post by: lazlokovacs on October 14, 2016, 12:43:00 PM
probably been said a million times but....

you might need a swanee/H&H fairing. Absolutely no buffetting whatsoever on a Cali even at lightspeed. Handles better too...

Harpers have em in stock....

YMMV
Title: Re: EV fork deflectors on a Calvin
Post by: Ncdan on October 14, 2016, 01:09:54 PM
Sheepdog, how does the vents keep the wind from coming under the bottom of the shield and upwards to the face, I can't seem to rap my heD around how that works?

On the Shawnee fairing, they are a great looking deal however I'm not ready to turn loose of 700 bucks just yet, if I can just improve what I have for the time being. Thanks for all the responses guys.
Title: Re: EV fork deflectors on a Calvin
Post by: Sheepdog on October 14, 2016, 03:44:49 PM
Lots of air comes up from under the shield because the air pressure in the front of the shield is much higher than behind it when the bike is at speed. This pressure differential causes the high-pressure air to rush around the edges of the shield to equalize the pressure. Since the lower edge of the windshield is the furthest forward, the rush of air is greatest from there. Placing vents around the middle of the shield allows some equalization of pressure, keeping the updraft at bay. Additionally, it creates a laminar flow of air that smooths the buffeting over the top of the shield. Look at the Swannee fairing mentioned by lazlokovacs...it has a vent right at the base of the windshield. This is a common solution to air management issues on motorcycle fairings.
Title: Re: EV fork deflectors on a Calvin
Post by: Ncdan on October 14, 2016, 04:57:09 PM
Sheep, if there is a gap of about 1 inch between the headlight and bottom edge of the shield does that serve the same purpose as the vents? I'm just afraid I'll attempt the drill the holes an shader the shield I just paid 180 bucks for.
Title: Re: EV fork deflectors on a Calvin
Post by: Sheepdog on October 14, 2016, 06:58:15 PM
I've heard some folks say that turning the windshield mounts upside-down will give you that 1" gap...and that it helps with buffeting. I expect that it will reduce updraft as well. It just looks kinda funny...

(http://i28.photobucket.com/albums/c229/JamesBagley/GuzziRifle027.jpg) (http://s28.photobucket.com/user/JamesBagley/media/GuzziRifle027.jpg.html)
Title: Re: EV fork deflectors on a Calvin
Post by: harrytief on October 14, 2016, 09:26:23 PM
I have two swanee fairings gathering dust in the rafters...just saying... Also a larger rifle shield with pop vents already installed...

Harry
Title: Re: EV fork deflectors on a Calvin
Post by: diablo45 on October 15, 2016, 10:32:25 AM
I have two swanee fairings gathering dust in the rafters...just saying... Also a larger rifle shield with pop vents already installed...

Harry

 Harry, PM sent on the Swanee.

Sam
Title: Re: EV fork deflectors on a Calvin
Post by: twodogs on October 15, 2016, 05:13:13 PM
PM sent to you also HARRY :boozing: