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Old 04-14-2018, 10:05 PM   #1  
Palantirion
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Default Resonance with top off?

Hello C7 owners. I hope to be joining you in ownership soon. Until then I have a question about the removable roof section on the coupes. Are there any unpleasant side effects with the top off?

I ask because I have a Z4 M Coupe and it's roof is also removable - if you take out the headliner, A pillars and cut out the sealant. I had it off for a while during a CF roof swap, and drove it with the roof panel out. The buffetting and resonanace from air pressure pulsing in the trunk area behind my head was extremely unpleasant. But of course this car was not designed to be driven with the roof panel off whereas the C7 Coupe is.
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Old 04-14-2018, 10:11 PM   #2  
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There is no pressure but a lot of turbulence at 75 plus
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Old 04-14-2018, 10:12 PM   #3  
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Your date's hair will get messed up.
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Old 04-14-2018, 10:15 PM   #4  
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There is wind turbulence with the top off and of course the car is louder but just cruised today for a couple hours with roof off and it was nice not uncomfortable
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Old 04-14-2018, 10:17 PM   #5  
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No issues with a convertible!
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Old 04-14-2018, 10:18 PM   #6  
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Quote:
Originally Posted by laserdude2215 View Post
Your date's hair will get messed up.
This is a fact!
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Old 04-14-2018, 10:19 PM   #7  
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Quote:
Originally Posted by Jmhornz71 View Post
There is wind turbulence with the top off and of course the car is louder but just cruised today for a couple hours with roof off and it was nice not uncomfortable
very true,not near as pleasant as my Trans Am used to be.
I much prefer t-tops over this thing.
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Old 04-14-2018, 10:26 PM   #8  
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Thanks guys! Sounds like it's about what I expected, and not what I feared.
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Old 04-14-2018, 10:28 PM   #9  
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Had a coupe and it was terrible on the highway with the top removed. Noisy and plenty of wind turbulence. Okay for cruising below 45mph.
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Old 04-14-2018, 11:06 PM   #10  
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I wonder...does anyone make a clip-in wind deflector? Seems like an easy item to fabricate and if it clips into the front 2 roof mount points then it could also be stored in the trunk when the roof is on.
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Old 04-14-2018, 11:09 PM   #11  
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Miserable
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Old 04-14-2018, 11:09 PM   #12  
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Windrestrictor.com does. I am concerned it will block the view
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Old 04-14-2018, 11:12 PM   #13  
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Yet another reason Verts rule!

Sorry, I could not resist.
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Old 04-14-2018, 11:19 PM   #14  
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If I had no plans to occasionally track I would have gotten a vert.
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Old 04-14-2018, 11:22 PM   #15  
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Quote:
Originally Posted by Leonrojo View Post
Windrestrictor.com does. I am concerned it will block the view
-I guess I shoudl have specified...not a wind blocker (that sits between the seats to create a high pressure zone), but a wind deflector (a kick-up on the leading edge of the roof opening).

Like this one on the E39:

It doesn't take much to alter the wind's path. I have this as standard equipemnt on my M5 and there is almost zero air movement in the cockpit, albeit with a smaller opening to deal with.
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Old 04-14-2018, 11:26 PM   #16  
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Virtually no one actually Tracks a Corvette. All the Tracking is done Street Racing. There's usually zilch reason to buy a hatchback. However, the 6-lb. paddleboard, is a nice touch for non-swimmers.
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Old 04-14-2018, 11:30 PM   #17  
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Quote:
Originally Posted by Palantirion View Post
I wonder...does anyone make a clip-in wind deflector? Seems like an easy item to fabricate and if it clips into the front 2 roof mount points then it could also be stored in the trunk when the roof is on.
You're never going to stop the buffeting from air movement in the cockpit of the hatchback.
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Old 04-15-2018, 07:12 AM   #18  
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Quote:
Originally Posted by Palantirion View Post
-I guess I shoudl have specified...not a wind blocker (that sits between the seats to create a high pressure zone), but a wind deflector (a kick-up on the leading edge of the roof opening).

Like this one on the E39:

It doesn't take much to alter the wind's path. I have this as standard equipemnt on my M5 and there is almost zero air movement in the cockpit, albeit with a smaller opening to deal with.
I had one on my C6 that went into the windshield header secured by two thumbscrews in the targa mounting holes. Got it on ebay from a forum member here who made them. Would not fit the C7 so I sold it to a local C6 owner. It helped quite a bit.

Last edited by NashvilleGrandSport; 04-15-2018 at 09:23 AM.
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Old 04-15-2018, 07:22 AM   #19  
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Quote:
Originally Posted by Southeast Beast View Post
very true,not near as pleasant as my Trans Am used to be.
I much prefer t-tops over this thing.
Agreed. My 1998 Camaro was quite pleasant with the T-tops off, even at highway speeds. The monsoon stereo also still retained its sound quality. Iím not sure why it isnít the same for the Vette!
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Old 04-15-2018, 07:28 AM   #20  
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Quote:
Originally Posted by Billy346 View Post


Agreed. My 1998 Camaro was quite pleasant with the T-tops off, even at highway speeds. The monsoon stereo also still retained its sound quality. Iím not sure why it isnít the same for the Vette!
absolutely,the stereo was definately far superior as well.
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