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Old 04-21-2009, 02:24 PM   #1
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Default Track ******, question about roll bars.

Which roll bar do you have and do you HAVE to have a hard top to track your car?

I have an M2 Sport with DD's. Would I be able to track with? If not what about with a hard top?
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Last edited by levnubhin; 04-21-2009 at 02:58 PM.
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Old 04-21-2009, 02:26 PM   #2
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HardDog HardCore Hard Top.

I have a HT and can track that way.


I've seen others with NASA Mid-Atlantic and another group I forgot the name allow people to HPDE with the helmet above the roll bar and no HT. Really depends on if the instructor is willing to or not.
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Old 04-21-2009, 02:35 PM   #3
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NB hdhc with a diagonal and harness bar welded in for my 1991. I had to bolt my seat to the floor to fit my helmet under it, but the hardtop fits too.
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Old 04-21-2009, 02:36 PM   #4
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It is ******. And it does not require an apostrophe in that context.

I have seen requirements for diameter and thickness of roll bars as well as the requirement for four mounting points. There seems to be some variation between sanctioning bodies. You should check the specifics regarding each track/event in which you might be interested.
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Old 04-21-2009, 02:36 PM   #5
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I am sure it varies by club but I wouldn't want to do a road course without the hard top, regardless of the rules. I've seen enough cars find themselves wrong way up at HPDEs to recognize it as a possibility. Obviously a cage would be best, but roll bar + hard top seems to be the best option for a streetable car.
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Old 04-21-2009, 02:37 PM   #6
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I have an old Kirk bar. Fits with hardtop.
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Old 04-21-2009, 02:41 PM   #7
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Most clubs will likely let you run with the sport. If you want to do Time Trials or something more official than HPDE you'll likely need to upgrade to an approved bar. Most car clubs that run events are only worried about it being tall enough and 4 mount points. Like Brain said, some aren't that strict on the height either.

HT is absolutely NOT neccessary. Some HPDE events will even let you run top down, some you have to have the top up.

I upgraded recently from an Autopower Street bar to a HD HC HT. As long as I had the hardtop on I was never turned away at a track day with that crappy autopower unit. That thing sits way back and low like the HD Ace. WAYYYY below my head. If I didn't have the hardtop I don't think I'd have gotten away with that. Only advantage of having the HT I can think of as far as passing tech.
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Old 04-21-2009, 02:41 PM   #8
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Quote:
Originally Posted by sixshooter View Post
It is ******. And it does not require an apostrophe in that context.
.

Fixed for you. lol
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Old 04-21-2009, 02:49 PM   #9
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Quote:
Originally Posted by Philly View Post
Fixed for you. lol
what about the "?"
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Old 04-21-2009, 02:58 PM   #10
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Quote:
Originally Posted by y8s View Post
what about the "?"
Tough crowd.
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Old 04-21-2009, 03:22 PM   #11
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Quote:
Originally Posted by Philly View Post
Tough crowd.
i just meant the apostrophe but whatev. ?s.
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Old 04-21-2009, 03:41 PM   #12
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M1 HDHCHT. It'll be up for sale soon.
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Old 04-21-2009, 04:02 PM   #13
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Boss Frog Clearview
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Old 04-21-2009, 04:17 PM   #14
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Quote:
Originally Posted by Savington View Post
M1 HDHCHT. It'll be up for sale soon.
PM sent
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Old 04-21-2009, 04:25 PM   #15
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M2 Sport w/ Harness Tabs.

The only local club that would hassle me would be PCA. IIRC, they have a bunch of crazy requirements to run top down, like the softtop would help anything if you flip. :gay:

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Old 04-21-2009, 04:32 PM   #16
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HDHCDD Ebay carbonfiberglass hardtop.


Your requirements completely depend on the track and club.
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Old 04-21-2009, 05:24 PM   #17
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how do those harness tabs work. i have the m2 hardcore hardtop but never could figure it out.
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Old 04-21-2009, 06:44 PM   #18
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I make my own roll bars and cages how ever people want them. I just did one for a guy and it will work with a soft or hard top. I always use thicker tube than required, Just to be safe.
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Old 04-21-2009, 10:12 PM   #19
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M1HDHCHT, w/padding.

I don't own a hard top, yet the test fit shows it will work when I purchase one.

Drilled and tapped a test hole, then filled with appropriate sized bolt for thickness testing/verification.

Harnesses are connected to the lower crossbar.

This configuration will work for NASA HPDEs, most tracks in the local area, SASCA AutoX, the Texas Mile, the Big Bend Open Road Race (with addition of an anti-submarine brace for the driver's seat), the Silver State Classic Challenge and the 130-Club at Bonneville.

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