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BRZ Second-Gen (2022+) -- General Topics General topics for the second-gen BRZ |
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12-23-2020, 10:22 AM | #15 |
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I love me a Targa, and wish a proper one was available in the Twin. The correct way to do it is what Chevy does with the Corvette, build it into every car from the beginning.
The only one I've actually owned was an '83 Camaro Z28 Conversion. It had a black convertible top that stretched over to cover and worked amazingly well. The car probably did have some noticeable flex in it as there was no real stiffening to my knowledge (I bought it off the dealer floor, conversion already done). I can tell you it was definitely better than the convertible conversions they were doing at the same time that felt like pretzels when you drove them. For @Red-86 I've owned lots of cars with sunroofs and every one of them leaked at some point. Not a fan.
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12-23-2020, 10:32 AM | #16 | |
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12-23-2020, 11:12 AM | #17 | |
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I’m not a structural engineer (!) but that doesn’t stop me (: from speculating on the ease of which two small *manually* removable panels couldn’t have been “cut” from the roof section & fitted w/o reducing rigidity or adding much up top weight. *But as some of us already mentioned I doubt anyone but die hard fans of 70-90s throwbacks (why I drive this car) would appreciate that design. |
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12-23-2020, 11:13 AM | #18 |
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As Dadhawk said, when it's part of the design from the beginning it can work without the added weight or twisting. Think Lotus Elise.
(By the way, we have had three Subarus with sunroofs and none have leaked. Just saying YMMV) I'll just put this here for you all to enjoy, reminisce and think about what you are/have missed. https://www.automobilemag.com/news/1...s-to-remember/ |
12-23-2020, 11:28 AM | #19 | |
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The thin, lightweight shear panel that is the outer roof contributes significantly to roof shear stiffness and chassis torsional stiffness. Removing this shear panel leave you with an open picture-frame that is relatively free to deform as a parallelogram (even with the central "T" brace). Shear panel weighs very little but gives a LOT in terms of shear and torsional stiffness. |
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12-23-2020, 11:33 AM | #20 | |
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12-23-2020, 11:36 AM | #21 |
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Actually, it doesn't. The frame in the roof above the door would have to come off as well for a true T-Top. That's a pretty significant piece.
Technically you could split the middle frame member, move it out towards the ends and do a sunroof without much loss, but you would lose the "bubble" part of the roof on each passenger side to do so (or rather the low part in the middle.
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12-23-2020, 11:38 AM | #22 |
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Yes, I would love a targa or TTops, or even a nice sunroof. No, I would absolutely not hack up a current model. This is something that would need to be designed in from the factory.
I loved the TTops in my old 300ZX. They never leaked, but they would make a little noise as the car got older. Totally worth it. My MR2 had a large removable sunroof you could store under the hood, since the engine was in the back. |
12-23-2020, 12:09 PM | #23 | |
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Also, this platform is flimsy enough, to the point where my trunk lid has enough later movement under load to butt up against the inner portion of the rear quarter panel/trunk opening just above the tail lights and to the point of removing paint on both sides. As for the MR-2, it's the '93 without T-Tops that is the most sought after, and command the highest resale. |
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12-23-2020, 12:10 PM | #24 | |
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IMO best to let convertibles be convertibles, and let fixed-roof coupes be fixed-roof coupes and enjoy the weight benefits. Corvette has suffered a massive weight penalty since 1968 introduced T-tops. C5 and C6 Z06 enjoyed a bit of a weight reduction with fixed roofs. Then for C7 they decided "who cares about weight, we'll supercharge it!" Now for the C8 they've decided they *really* don't care about weight |
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12-23-2020, 12:11 PM | #25 | |
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I don’t want to give up the double bubble roof for a sunroof or targa top. Not to mention you introduce more flex into the car. No thanks! There is a reason the coupe version of the MkIV Supra is the most sought after. Don’t get me wrong I think sunroofs and targa tops are fun, but the cars I’ve owned with them I found I never used them much. Sent from my iPhone using Tapatalk |
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12-23-2020, 12:25 PM | #26 | ||
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90s Z-car fans would kill for a slick-top Z32 turbo, Nissan didn't offer one |
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12-23-2020, 02:11 PM | #27 |
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Technically you wouldn't have to give up the double bubble for a targa. A hard top could remain pretty much as it is.
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12-23-2020, 02:37 PM | #28 | |
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The reason they were rare and the reason Nissan didn't make a slicktop TT is because they didn't sell well when they were new - because the TTops were awesome The slicktop was the budget Z. |
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