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hardtop makes u faster?

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Old 01-29-2009, 11:59 AM
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Default hardtop makes u faster?

for those with a hardtop... does it feel faster. more aerodynamic and less resistance? cutting thru the air...
Old 01-29-2009, 12:29 PM
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I've heard/read that wind noise is drastically cut. Less wind noise from air traveling over a textured surface vs a smooth surface, but I think the windshield being more vertical than other cars is what increases our coefficient of friction the most.
Old 01-29-2009, 12:35 PM
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ahh. good to know.. the smooth surface on the hardtop should help too.
Old 01-29-2009, 12:35 PM
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I don't know about faster.

But its much quiter and cuts down a ton of wind noise.
Old 01-29-2009, 01:06 PM
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Originally Posted by AeroS2000' date='Jan 29 2009, 01:35 PM
ahh. good to know.. the smooth surface on the hardtop should help too.
Probably about as much as a hat makes you faster...
Old 01-29-2009, 01:10 PM
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i know the spoon hardtop does help i lil but i dont think it would be as much of gain as you think maybe a couple mph in the straights
Old 01-29-2009, 01:11 PM
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a closed cockpit is better aero wise. the flow around the windscreen, over the seats, roll hoops, etc is real messy. a hardtop might have slightly lower skin friction drag than the convertible, but most of your drag is pressure and separation based anyway.

you would have to be haulin pretty good for it to matter, and there are certainly better ways to go faster for if you have 4 grand to spend
Old 01-29-2009, 01:17 PM
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youd have better luck pumping up your tires to 40 psi since rolling resistance is almost double the coefficient of drag.
Old 01-29-2009, 01:27 PM
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- soft-top UP = .38
- soft-top DOWN = .46
Old 01-29-2009, 01:40 PM
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Originally Posted by s2kshift9k' date='Jan 29 2009, 04:35 PM
I don't know about faster.

But its much quiter and cuts down a ton of wind noise.


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