Wind Noise

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Peter M. Zimmermann
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Wind Noise

#1 Post by Peter M. Zimmermann » Sat Jan 18, 2020 3:08 pm

OK, guys and gals, the 1958 coupe in my garage is running well, but... No, I'm not here to tell you how to fix/reduce wind noise, I'm here to ask what you've done that might have worked. I have replaced door seals that were in pretty bad shape, and that made a, maybe, 20% improvement.

That said, at about 50 mph the car becomes very loud, by 70 it's close to deafening. I don't know how old the windshield and back window seals are, but I think they might be original. The rear quarter window seals are also quite old, but our search engine reveals that I don't want to do those!
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IMG_1324 (2).JPG (458.19 KiB) Viewed 1042 times
Please tell me what you did that made minor, or major, improvements with the wind noise in your 356. Thank you for reading!

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David Jones
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Re: Wind Noise

#2 Post by David Jones » Sat Jan 18, 2020 3:29 pm

An aftermarket vent window wind deflector made the biggest difference to my 59 coupe. Of course that is only effective for the open window wind buffeting.
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
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C J Murray
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Re: Wind Noise

#3 Post by C J Murray » Sat Jan 18, 2020 3:34 pm

Convertibles are quieter.
'57 Speedster
'59 Sunroof
'60 Devin D Porsche Race Car - Finally Finished!
'63 GS 2133 coupe
'64 Elva Courier mk4T
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Mike Wilson
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Re: Wind Noise

#4 Post by Mike Wilson » Sat Jan 18, 2020 3:52 pm

One way to check to see if you have good door seals is to close them on a sheet of paper and see if there are any areas where it is very loose. Also, maybe have a passenger see if they can isolate where the noise is coming from.

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Doug McDonnell
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Re: Wind Noise

#5 Post by Doug McDonnell » Sat Jan 18, 2020 4:03 pm

Mike As you know you need to close the door trapping $100 bills when checking for fitment of the seals. Check for air entry around windshield seal by passenger using lit match maybe? viewtopic.php?t=13961 Personally I vote for a new windshield seal to solve your problem. They cause a LOT of wind noise in a 2000 BMW 740i when bad. And you might want to check on the seals at the door bottoms used on T6 cars if all else fails. BTW Beautiful A Coupe!!
Last edited by Doug McDonnell on Sat Jan 18, 2020 4:17 pm, edited 1 time in total.
1965 356C There is never enough time to do it right, but always enough time to do it over.

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Norm Miller
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Re: Wind Noise

#6 Post by Norm Miller » Sat Jan 18, 2020 4:16 pm

I just turn my hearing aids to the mute position.
Sounds like a new car!
 

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Doug McDonnell
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Re: Wind Noise

#7 Post by Doug McDonnell » Sat Jan 18, 2020 4:17 pm

Most excellent idea Norm.
1965 356C There is never enough time to do it right, but always enough time to do it over.

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Don Gale
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Re: Wind Noise

#8 Post by Don Gale » Sat Jan 18, 2020 6:09 pm

O.P. I love your A in black. That's my 1st choice for re-painting my 58 coupe. I recall when swapping the sunroof clip that there were sound deadening packs stuffed in the C-pillars. I never got beyond finishing once the new roof was welded on and got the windows back in. It has lots of weird noise coming from the C-pillars, especially in the rain. I do have the optional factory external unobtanium wind deflectors. I will be collaborating with a fellow registry member later this Spring to fabricate replicas and will offer them to those interested. No price point yet.

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1958 356A 1600 Super Sunroof Coupe
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912

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Don Gale
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Re: Wind Noise

#9 Post by Don Gale » Sat Jan 18, 2020 6:17 pm

Norm Miller wrote:
Sat Jan 18, 2020 4:16 pm
I just turn my hearing aids to the mute position.
Sounds like a new car!
Ha! and the knob on the left side of the radio works well to get rid of ticking valves and knocking rods
1958 356A 1600 Super Sunroof Coupe
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912

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Jack Kwiat
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Re: Wind Noise

#10 Post by Jack Kwiat » Sat Jan 18, 2020 6:22 pm

Hood seal, perhaps?
I think that's where my wind noise is coming from.
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Mike Wilson
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Re: Wind Noise

#11 Post by Mike Wilson » Sat Jan 18, 2020 7:08 pm

Doug: can you send me your leak checker? 😄

Mike
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Ashley James
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Re: Wind Noise

#12 Post by Ashley James » Mon Jan 20, 2020 4:27 pm

IMO wind noise comes from vent window seals and not so much door seals.

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Doug McDonnell
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Re: Wind Noise

#13 Post by Doug McDonnell » Mon Jan 20, 2020 6:18 pm

But Ashley He doesn't have vent windows
1965 356C There is never enough time to do it right, but always enough time to do it over.

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Ashley James
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Re: Wind Noise

#14 Post by Ashley James » Tue Jan 21, 2020 12:32 pm

Doug McDonnell wrote:
Mon Jan 20, 2020 6:18 pm
But Ashley He doesn't have vent windows
Apologies for being dumber than usual.

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Jim Clement
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Re: Wind Noise

#15 Post by Jim Clement » Tue Jan 21, 2020 12:50 pm

I have a similar T1 car, and it is also noisy .. it has been ever since I owned it.
I have installed sound deadening (like fat max) , then over top of that, I put the regular sound deadening, still noisey.
It would be interesting to have a sound meter in a car, and move it around to see where the noise was coming from.
on the highway, it is difficult to talk to the passenger, although possible with a bit of a lean into the centre ..
I keep thinking for a longer drive i would get a pair of noise canceling headphones... not sure that sounds all that safe though..
 

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