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Author [ES] [PL] [PT] [IT] [DE] [FR] [NL] [DK] [SE] [FI] [NO] Topic: my first mod.  (Read 1085 times)

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Online jaapvanthoff

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Re: my first mod.
« Reply #8 on: August 07, 2020, 06:34:35 AM »
I have done the same.
I have lost my small optional flip up screen which I had mounted on the stock screen.  :023:

My aftermarket screen is probably a bit too big; still turbulences.
I made the opening a bit too wide. I tought, if so, i can mount it partial back if needed.
The test is as follow: I start with the full opening.
Then I will close it completely with strong adhesive tape, an see what is happening.

I live in The Netherlands, and today I am off to Switzerland for my holidays.
I travel via Germany- non or little maximum speed limits, so plenty time to find out the best opening.

My only concern is: did i do the correct thing, I can not go back the coming 10 days to the stock screen.

TTSE bleu
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Offline MidnightSE

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Re: my first mod.
« Reply #9 on: August 10, 2020, 07:56:14 AM »
The "port" mod hasn't yielded the desired results. I still get some draft under neck roll when the screen is raised above the eyesight level. I don't like looking through the plastic when I ride. I keep the screen below my eyesight level. 
I reckon the curve on the top of the screen has something to do with how air flows around the helmet.
The next step is to make the top of the screen less curvy, meaning trimming the edges to make the top of the screen curve down like CalSci, w/o curving inward.
If all fails, I'll get the CalSci screen and be done with it.

Cheers...

Offline Merritt64

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Re: my first mod.
« Reply #10 on: August 10, 2020, 04:20:21 PM »
Thanks Midnight for keeping us updated  Good information.

Offline HACKLE

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Re: my first mod.
« Reply #11 on: August 11, 2020, 12:32:25 AM »
Just a little mod to try. A strip of narrow plastic tape, about 3/8th's inch wide. The sort used for pin striping. Place it on the top edge of the screen from side to side. With an even amount on the leading edge and rear edge of the screen. This will distort the air flow over the top edge of the screen and should solve your airflow problems. Simple, cheap and easy to remove if you don't like it. Cheers.  :028: :028:
HACKLE     I'm too young to be this old.

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Offline Jeffb

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Re: my first mod.
« Reply #12 on: August 11, 2020, 02:21:22 AM »
Have you got a picture of that, Hackle?

Online jaapvanthoff

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Re: my first mod.
« Reply #13 on: August 11, 2020, 06:39:07 AM »
Have you got a picture of that, Hackle?

+1
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Offline HACKLE

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Re: my first mod.
« Reply #14 on: August 11, 2020, 07:14:44 AM »
Sorry, no. It's simple, run the thin strip of tape along the top edge of the screen. Overlapping the front and rear [inside] of the screen a little. As I said the leading [front] edge of the tape will cause the airflow [stream] to rise in a vertical movement.  :169: :169:
HACKLE     I'm too young to be this old.

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Offline Saddle Tramp

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Re: my first mod.
« Reply #15 on: August 11, 2020, 02:17:47 PM »
*Originally Posted by MidnightSE [+]
The "port" mod hasn't yielded the desired results. I still get some draft under neck roll when the screen is raised above the eyesight level. I don't like looking through the plastic when I ride. I keep the screen below my eyesight level. 
I reckon the curve on the top of the screen has something to do with how air flows around the helmet.
The next step is to make the top of the screen less curvy, meaning trimming the edges to make the top of the screen curve down like CalSci, w/o curving inward.
If all fails, I'll get the CalSci screen and be done with it.

Cheers...

There is no doubt in my mind that the curved upper edges of the OEM windshield create a lot of turbulence.
Switching to the CalSci large windshield totally eliminated turbulence. The only problem now is that in very hot weather, it is too effective!
I switch back to the OEM screen when it's really hot out, and put up with it in the lowest position, but I may end up trimming the corners to flatten the top edge.
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