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-   -   trackday, hardtop? (https://www.miataturbo.net/general-miata-chat-9/trackday-hardtop-9905/)

Oscar 05-16-2007 02:53 PM

trackday, hardtop?
 
Since I'm probably taking the miata to the track next monday, should I get the hardtop on or leave it? Is the (feeling of) improved handling/stiffnes worth the weight on top?

magnamx-5 05-16-2007 02:54 PM

Yes keep the hardtop on for sure.

mschlang 05-16-2007 03:12 PM

I like to have the top down, hard top off. I like listening to the exhaust, other cars, corner workers yelling at me, ect.

hustler 05-16-2007 04:40 PM

Is the aero benefit worth it for the added weight?

I like the top down.

http://gallery.upshizzle.com/albums/05.07/droptop.gif

miataspeed1point6 05-16-2007 06:10 PM

Will your head fit under the hard top with a helmet? If it will I would try a few laps with and without and see if it does anything.

Oscar 05-16-2007 06:55 PM

fitment is not an issue, although I don't wear a helmet. The hardtop does give some more rearview because of the larger rear window.. we'll see

mschlang 05-16-2007 07:12 PM


Originally Posted by hustler (Post 114277)
Is the aero benefit worth it for the added weight?

I like the top down.

According to the SM guys, yes it is.

cueball1 05-16-2007 07:23 PM

All the SM guys run with hardtops on. The weight is more than compensated for by the better aerodynamics and stiffness.

What track lets you run without a helmet? I guess in a country where it's legal to light up, shoot up and pay for girlfriends by the 1/2 hour, it shouldn't suprise me you can drive your car on a track naked.

Oscar 05-17-2007 08:09 AM

You don't have to wear a helmet, unless you have a rollcage..since I'm only driving in the slow-as-fuck-class I'm not bothered...

Savington 05-17-2007 06:23 PM

Hardtop is worth 5+mph on the straightaway, according to SM guys.

This isn't really scientific, but I did a drive a little while ago where the group was able to open the taps a bit. I spun the motor out to about 6k in 4th gear, and there was a green Miata behind me with the top down. We stopped, and he asked me what was under the hood. I've got advanced timing and a DIY Randall cowl intake, but it turned out he had a fresh JRSC supercharger setup with a water/air intercooler in the crossover tube. He said he was flat-chat and he was not pulling on me.

The difference? He had his top down; I had my hardtop on.

Oscar 05-17-2007 06:51 PM

top down creates lots of drag, but was just wondering wether the hardtop was more aerodynamic than the softtop..
I'll probably put it on anyways

Exhondaman 05-17-2007 07:00 PM

For a HPDE trackday event or a w2w race?

Put the top down and enjoy the sounds of buffeting wind down the straight and squealing tires around the corners. Unless it's a timed event for points or a race, I wouldn't get caught up with how many hundreds of a second quicker you MIGHT be with the top on.

Strider 05-17-2007 07:44 PM

I normally run top down but at straight line fast tracks I will go top up. I don't have a hard top but I would think it would help to have the top up in the straights.

I can't believe you don't ware a helmet, you have got to be off your rocker. I would not track any car without a helmet. If your driving fast enough to get in an accident your are driving fast enough for a helmet.

Oscar 05-18-2007 07:01 AM

1 Attachment(s)
here's the track, running the longest config.

Attachment 216495

Oscar 05-21-2007 04:34 PM

just got back, was friggin' awesome. hope to get some pics up soon

Strider 05-21-2007 06:36 PM

I want to hit it!!! PICS PICS PICS!!!!!!

I would totally run that top up once I was comfortable with the track.

Oscar 05-21-2007 06:40 PM

I did put the hardtop on, I liked how it felt..I'm waiting for the trackphotographer to up the pics to his site. My passenger only took a few so-so photo's with my phone.
still had tons of fun, even on shot stock shocks and springs...

Oscar 05-21-2007 07:15 PM

here's a vid of one lap, shot from the pax seat with my phone: http://s142.photobucket.com/albums/r...t=MOV00194.flv

Arkmage 05-21-2007 07:22 PM

damn that's a crowded track...

Oscar 05-21-2007 07:30 PM

1 Attachment(s)
this was a quiet day, during office hours. imagine the weekends...
here's a pic of last year: Attachment 216475


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