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Old 03-16-2014, 08:12 PM   #1
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Soft top flaps at high speed

When I drive my jeep on the freeway, sometimes the soft top flaps around. Its annoying. You can sort of stop it by putting your hand against it and giving it less room to move around but that's not a solution.


Anyone have a way of dealing with this issue?

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Old 03-17-2014, 01:05 AM   #2
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Just the characteristic of a soft top. Even if you get it snare drum tight, it's still going to flap. They all do it. I have even been in a 2014 JK and it flaps just as much as my YJ does.

A Jeep is designed to be cool, not fast. lol. They didn't come from the factory with the idea of going 65-70 down an interstate.

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Old 03-17-2014, 01:24 AM   #3
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I found this post interesting as in have an '08 JK and driven across the flat windy prairie. Having both a tail wind and extreme head wind. I was having the hood flutter until I swapped the hood straps for the Daystars but I've never noticed my soft top flap. Could this be a JKU thing being there is more coverage that would be more prone to flap?

.... Sorry, I just realized this was a YJ post and not a JK.
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Old 03-17-2014, 01:48 AM   #4
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If the material is thicker it'll flap a little les.

I put a quadratec top on my TJ and it flaps waaaay more than the original top.

Even then it was still pretty loud at 70mph or so.

Try turning the heater or AC on if you have it, with the windows zipped or rolled up it'll "blow" the top outwards, and the flutter won't be as bad.

Or you can get a thicker top, such as sailcloth.

But the only way to really get around it is to buy a hardtop... Or get used to it lol
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Old 03-17-2014, 06:28 AM   #5
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Quote:
Originally Posted by WillEnd View Post
When I drive my jeep on the freeway, sometimes the soft top flaps around. Its annoying. You can sort of stop it by putting your hand against it and giving it less room to move around but that's not a solution.


Anyone have a way of dealing with this issue?
Install a 4cyl engine in it, then you won't be able to go fast enough for the flapping to be an issue
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Old 03-17-2014, 08:30 AM   #6
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Not really. If the top isn't flapping, it's usually because I'm broken down somewhere. Plus the snaps make an awful rattling noise too. Just something I've learned to live with
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Old 03-17-2014, 09:23 AM   #7
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I was thinking there had to be some sort of cross bar that goes between the window frame and the roll bar that holds the top in place a bit better there.

If you had some extra support there it wouldn't flap.


Does anything like that exist?
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Old 03-17-2014, 09:29 AM   #8
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They actually have spreader bars for the tops. But I'm not sure if this is strictly a Bestop thing or not. My factory hardware doesn't. I'd check around. But yeah. Some do have what you're talking about.
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Old 03-17-2014, 05:26 PM   #9
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You can make a bow with a length of 1/2" PVC and a couple of Tee connectors for less than five bucks.
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Old 03-17-2014, 08:45 PM   #10
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Here are some photos of 1/2 inch PVC and 2 in to 1/2 tee PVC. A bow that I use withy bikini top to minimize the flapping. Please note it does not eliminate the flapping

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Old 03-18-2014, 02:25 AM   #11
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Okay, so this PVC contraption... are we going from the rear spreader to the roll bar? Also it looks like you got some foam padding on that pipe... where does that come from? Is that just pipe insulation or something?
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Old 03-18-2014, 08:26 AM   #12
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that foam looks like pipe instalation.
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Old 03-18-2014, 08:43 AM   #13
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I just drove my jeep at 70 mph this morning with this thread in mind. I have a bestop replacement top with rugged ridge hardware. Half hard doors with soft skins. The soft top balloons up and doesn't move at high speeds. There is a lot of highway noise, though.
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Old 03-18-2014, 09:08 AM   #14
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Quote:
Originally Posted by Ivie View Post
Here are some photos of 1/2 inch PVC and 2 in to 1/2 tee PVC. A bow that I use withy bikini top to minimize the flapping. Please note it does not eliminate the flapping
Did you just slit the tube and ease it over the rollbar/padding? White PVC or the off white PVC? Very interested!
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Old 03-18-2014, 02:53 PM   #15
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Did you just slit the tube and ease it over the rollbar/padding? White PVC or the off white PVC? Very interested!
This piece is made to not eliminate flapping but more to eliminate a puddle from the rain in your bikini top. It fits between the spreader bars that run from the windshield frame to the main hoop of the roll bar. Side to side, like straight over your head.

You need 2- 2" to 3/4" T-fittings (one for each side) Cut them in half 90* from the 3/4" nipple. Discard the bottom half and keep the piece with the 3/4" nipple on it.

And the piece of 3/4" I believe is 39-1/2" long. Don't quote me on that because its been a few years since I made mine.

You can get the pipe insulation to fit 3/4" pipe for on it.

All pieces are standard schedule 40 PVC pipe. (the white stuff) and it costs about $10 total to make.
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Old 03-18-2014, 03:37 PM   #16
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..
And the piece of 3/4" I believe is 39-1/2" long. Don't quote me on that because its been a few years since I made mine….
That length doesn't need to be exact because the roll bar extenders are not parallel.
They are farther apart at the windshield and closer at the back.
Slide the contraption forward for 'less bow', slide back for 'more bow'.
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Old 03-18-2014, 07:08 PM   #17
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I actually made my bow with 1/2 schedule 40 PVC and used 2 in to 1/2 Tee. You will need two Tee s that you cut in half. My 1/2 in PVC is cut to 49 inch length . I covered the PVC bow with 1/2 pipe insulation. Then rattle canned black the white PVC tee halves so it all matched up better. I tried the bow 1st without the pipe insulation and I did not observe much help with the flapping noise. But after I added the insulation on the PVC bow the flapping noise was dramatically reduced but not eliminated. One more thing you should know. Since I installed the bow it has slightly stretched the bikini top so when I don't have the bow in it will flap worse than before I started.
I hope this helps and GL.
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Old 03-18-2014, 07:21 PM   #18
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Not really. If the top isn't flapping, it's usually because I'm broken down somewhere. Plus the snaps make an awful rattling noise too. Just something I've learned to live with
As for the annoying snap rattle I have a cure for that also. I put a small dab of silicon inside the button head. Just a small amount so you don't restrict the male part of snap entering the button(female part of snap). I no longer have that annoying snap rattle.
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Old 03-18-2014, 07:30 PM   #19
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Install a 4cyl engine in it, then you won't be able to go fast enough for the flapping to be an issue
not true, I have a 4cyl, still flaps lol
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Old 03-19-2014, 02:22 AM   #20
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This piece is made to not eliminate flapping but more to eliminate a puddle from the rain in your bikini top. It fits between the spreader bars that run from the windshield frame to the main hoop of the roll bar. Side to side, like straight over your head. You need 2- 2" to 3/4" T-fittings (one for each side) Cut them in half 90* from the 3/4" nipple. Discard the bottom half and keep the piece with the 3/4" nipple on it. And the piece of 3/4" I believe is 39-1/2" long. Don't quote me on that because its been a few years since I made mine. You can get the pipe insulation to fit 3/4" pipe for on it. All pieces are standard schedule 40 PVC pipe. (the white stuff) and it costs about $10 total to make.
This is a great idea. I hate it when I get in the jeep and immediately have water all over my leg. Will try this out come summer.
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Old 03-19-2014, 03:52 AM   #21
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I see what you're doing. You run it from right to left over your head.

I'll try that out, thanks.

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