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Tiger Time => Girly Talk (1999 - 2006 Tigers) => Topic started by: chinchliffe on May 18, 2012, 09:47:43 PM

Title: Screen buffeting
Post by: chinchliffe on May 18, 2012, 09:47:43 PM
Just like other Girly owners, I had problems with head buffeting and wind noise with my standard screen. After reading various reviews on the web I decided on an MRA Vario screen, which was a big improvement. I have recently returned from a trip to Germany on the Tiger and decided to see if I could make the Vario even better. I read various articles on equalising wind pressure and setting the screen away from the cowling. I made some brackets and spacers, refitted the Vario screen and went for a blast and up to 80mph............................no buffeting and greatly reduced wind noise!
I know this won't work for everyone but with this setup I could happily ride all day.
I am 6ft, large build and have the seat on the middle setting.

Chris
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Post by: BigDan on May 18, 2012, 09:55:46 PM
There are settings for the seat? how? where? awesome.
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Post by: Robbie on May 18, 2012, 10:47:48 PM
Quote from: "BigDan"There are settings for the seat? how? where? awesome.

take it off and flipit over
push the brackets inward
pick the holes you want and re assemble on the pins
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Post by: BigDan on May 18, 2012, 11:00:21 PM
Cheers mate!

Also, great idea with raising the screen off, I think thats partly how the palmer products screen works so well, letting air in underneath thins it out :)
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Post by: bjago on May 19, 2012, 07:16:09 AM
I was just wondering if you might have some very simple dimensions for this little project...... I am at work and can quickly fab up some of these to try out for the weekend.
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Post by: chinchliffe on May 19, 2012, 11:53:49 AM
Brackets are 50mm x 25mm x 3mm aluminium flat bar. 25mm between hole centres.
Plastic/Fibre spacers step it away from the cowling 25mm.
M5 x 45mm Stainless Button head M/C screws
M5 x 30mm Stainless Button head M/C screws
M5 Stainless nylocs.
I get no flex on the cowling or screen even at 80mph.

Hope this helps.
Chris
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Post by: Chad on May 19, 2012, 04:09:08 PM
Good work  :D
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Post by: robxxxx on May 20, 2012, 12:12:09 AM
Chris, have you had a pillion on with this mod, and any comments from them? Been mucking about with my MRA, but discovered that things got worse with a passenger.
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Post by: chinchliffe on May 20, 2012, 12:50:34 AM
No, sorry I haven't. I rarely carry a pillion.
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Post by: pineygroveshop on May 20, 2012, 03:15:58 AM
Quote from: "chinchliffe"Brackets are 50mm x 25mm x 3mm aluminium flat bar. 25mm between hole centres.
Plastic/Fibre spacers step it away from the cowling 20mm.
M5 x 45mm Stainless Button head M/C screws
M5 x 30mm Stainless Button head M/C screws
M5 Stainless nylocs.
I get no flex on the cowling or screen even at 80mph.

Hope this helps.
Chris

Did you have to modify any existing parts or enlarge any holes in the screen or cockpit?  Can the work be reversed without problem?
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Post by: chinchliffe on May 20, 2012, 01:23:33 PM
I used all the existing holes as they were, and picked up on the original holes in the cowling/cockpit even using the standard rubber/brass M5 fixings. I could take off the MRA and replace it with the standard screen also using these mounts. Everything can be put back to standard just by removing the brackets and spacers.
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Post by: pineygroveshop on May 20, 2012, 02:25:10 PM
Have you tried it in the rain yet?
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Post by: chinchliffe on May 20, 2012, 06:40:51 PM
No, I haven't tried it in the rain. Did a trip to the North Wales Coast today, just over 100 miles mainly on A roads, 70-80 mph and same again, no buffeting and reduced wind noise. Like I said before, this setup won't work for everyone.

Chris
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Post by: Bixxer Bob on May 20, 2012, 07:01:52 PM
Quote from: "BigDan"There are settings for the seat? how? where? awesome.

If it's lower you're after, you could try this too:

http://www.adrianmolloy.com/Lower_Seat.html (http://www.adrianmolloy.com/Lower_Seat.html)
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Post by: BigDan on May 20, 2012, 10:13:30 PM
Cheers Bob, but I was actually thinking of higher.

And I too think Adrian Molloy's website is pretty good!
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Post by: Putts255 on May 22, 2012, 05:51:20 AM
Definitely worth a try.  Thanks for sharing!!!

Looks like you used some rubber washers or other type of washers can you elaborate?

Thanks,

Paul
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Post by: chinchliffe on May 23, 2012, 11:42:19 AM
The washers are off cuts from interior car body panels (they are an exact colour match for my Tiger). They are made from High Impact Polystyrene (HIPS).

Chris
Title: A slight chinchliffe screen buffeting tweak....
Post by: Stitch on July 03, 2012, 03:27:17 AM
+1 on the mod of the MRA Vario mounting. Thanks to Chris for the contribution and I agree...it doesnt move at 80mph.   My nearest hardware store did not have the stainless button heads for the long length needed so I improvised a little by using standard hex bolts. I also used some 3/16" grommets to space the screen off my aluminum brackets. Any place that touches plastic does have a rubber washer under the stainless one. I did have a gap due to the length of the aluminum I used so I filled the gap a bit with a pair of Signal Dynamics  amber/black marker/turn signals PN2011. These 6" inch strips are really nice, fit perfectly for my needs, and are in metal backings. I did not have to do any more fabrication other than bolting them on with the hardware that came with it. Purchased them on ebay almost 50% off. Wired in they are very nice and one can never have enough lighting. (http://i1174.photobucket.com/albums/r609/jssater/DSC00902.jpg)
(http://i1174.photobucket.com/albums/r609/jssater/DSC00903-1.jpg)
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Post by: deepsouthtiger on July 05, 2012, 03:30:34 AM
Wow. very nice, extra lights are always good!  :hello2
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Post by: Spud on July 17, 2012, 07:17:08 PM
Just done this screen mod and I must say I'm very immpressed with the results. A bit more wind pressure on the shoulders but I could ride without ear plugs, so the noise must have dropped considerably.
cheers for the info Spud  :wink:
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Post by: Spud on July 17, 2012, 07:19:10 PM
I have a spare set of brackets if anyone wants them cheers Spud  :wink:
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Post by: Trophykev on July 18, 2012, 05:49:31 PM
Pm sent
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Post by: Spud on July 19, 2012, 09:05:26 AM
There's a couple of people interested in these brackets, they are stainless steel. I do not require any money for them a SAE would suffice cheers Spud  :wink:
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Post by: mwrmoore on August 03, 2012, 05:13:44 PM
has anyone tried lifting and raising a standard triumph touring screen like this - before i spalsh out on a new screen for mine, i wondered if it was worth trying a similar mod for the standard fare?
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Post by: Trophykev on August 03, 2012, 06:29:48 PM
Havent tried it but did wonder i i could lift just the top on a spacer to change the angle slightly.  Have a touring screen on mine very good but not perfect
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Post by: mwrmoore on August 06, 2012, 08:29:18 PM
So spaced out my existing touring screen with some longer bolts and some 12mm nylon spacers - any larger and the bolts won't fit through the holes-the angles get very steep and it put pressure on the fairing/ screen lip but... Noticeable difference already, buffeting to head is reduced but wind roar is up, silly more fluttering around shoulders.

I'm gonna knock up some brackets to put larger spacers in and lift the screen further towards me in the next week or so and see if that improves further. but signs are good, whether as good as a replacement aftermarket screen I'm not sure...
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Post by: Spud on August 07, 2012, 09:43:31 AM
I have a MRA screen with this mod, 275 miles on sunday and it performed great. I can ride up to 70 without earplugs.
Got into some serious showers on sunday and theres not a lot of water coming up the inside of the screen.
It's a bloody good mod as far as i am concerned.


Are there many people interested in the brackets ?

cheers Spud  :wink:
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Post by: yamaha6 on August 07, 2012, 01:09:13 PM
Spud
Fitted the brackets you sent me on Sunday and went for a test run.Buffeting is definitely reduced,just need to see what it is like in the rain.

Cheers Alan
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Post by: Spud on August 07, 2012, 03:32:04 PM
Quote from: "yamaha6"Spud
Fitted the brackets you sent me on Sunday and went for a test run.Buffeting is definitely reduced,just need to see what it is like in the rain.

Cheers Alan

great stuff I didn't find much water coming up the inside at all.

cheers Spud  :wink:
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Post by: mwrmoore on August 07, 2012, 08:20:47 PM
Spud, if you can lay your hands on more brackets I'd be interested. Ideally by the end of the month as planning trip. Cheers matt
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Post by: Spud on August 07, 2012, 08:38:10 PM
I'll ask my mate if he is having any more metal work done, may cost a penny or two  :roll:

cheers Spud  :wink:
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Post by: Spud on August 07, 2012, 10:05:49 PM
1 set would cost £50  :shock:   as they are laser cut stainless steel. But if there's enough interest to bring the cost down enough he will get some cut. cheers Spud  :wink:
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Post by: mwrmoore on August 08, 2012, 11:04:40 PM
Spud, might be a bit out of budget as a one off for me, but thanks for enquiring anyway...
Cheers
Matt
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Post by: Spud on August 09, 2012, 08:53:00 AM
I dont think my mate would do a one off in any case due to set up times on the machine, but the brackets are easy to make at home with a drill saw and a file.
But if there was interest he would get some made up, but I must admit I would of paid £50 for the difference it has made to my bike, I'm on my 3rd screen and how much do they cost ?
Have a go at making some

cheers Spud  :wink:
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Post by: Spud on August 09, 2012, 10:55:12 AM
Right spoken to my mate and he will make up 5 sets (more if needed) which will include brackets, spaces, and all nuts and bolts for £28 a set to cover his costs etc.

Hope the original poster is happy with that, and hopefully it may be useful for some on this forum cheers Spud  :wink:
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Post by: Spud on August 12, 2012, 06:24:26 PM
I have an order for a screen kit set, so does anyone else one any cheers spud  :wink:
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Post by: Trophykev on August 12, 2012, 08:59:29 PM
Sorry mate all spent out at the moment. Just cant justify this one.
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Post by: Spud on August 12, 2012, 09:20:05 PM
Quote from: "Trophykev"Sorry mate all spent out at the moment. Just cant justify this one.

No worries mate cheers Spud  :wink:
Title: Buffeting....
Post by: cdubya on August 13, 2012, 07:04:39 PM
Screen Mod Photos
Title: Buffeting....
Post by: cdubya on August 13, 2012, 07:08:29 PM
A couple more. I have no idea why they are upside down. They are right side up on my computer???? Sorry bout that for those of you on desk tops with unmovable screens. :oops:
Title: Re: Screen buffeting
Post by: mwrmoore on August 31, 2012, 02:05:14 PM
So have done Chris's mod to a standard triumph large screen and have the following to report

the gap between screen and fairing seems to reduce turbulence but slightly increases wind pressure, the lift upwards is beginning to send the wind over my 6'3" head, however two things to report -
1. the gap seems to create a slight lift, lightening the front a bit - mainly at 90mph+ (obviously on a private test track!)
2. the very swept back vertical edges of the touring screen don't sweep the air around my frame and mainly pushes it into my shoulders.

So in essence i'd recommend doing this mod even if you have a standard triumph screen - it does help. but when all said and done it seems to be down to the total area of the screen - a much bigger one would have significant effects... but we knew that anyway.

Title: Re: Screen buffeting
Post by: cosmo on September 01, 2012, 03:52:54 PM
I can report that the 'screen I added to my Girly is near perfect. After a trip to Rochester, NY., I can state that there is no buffeting up to at least 90 mph, even for the passenger. Rain protection is very good, the only slight negative is that there is more of an updraft at speed. I will be trying some "wings" attached between fairing and 'screen to tame that bit.

This 'screen and the highway pegs allowed my wife and I to empty the tank (220+ miles) twice during that trip (no stops, at all). And we're not young. I bought my first Triumph when Meridan was healthy.

Cosmo
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