temporary roll cage or not set in stone?

Brainofjjj · 12-25-2012, 09:42 AM

Also, you'd be crazy to drive a street car with a cage.
Hello brain damage

Porschefile · 12-25-2012, 10:11 AM

In theory, if the steel plates the bolt in cage is bolted to are thick enough to prevent punching through the floor and if the bolted connections on the cage itself don't shear, then it could be just as strong. But welded cages are generally thought of as safer because they eliminate those variables (steel plates still needed of course, but they typically have bigger ones on welded cages). Plus custom cages are a lot closer to the roof line.

Anything more than a half cage on street is a death wish, and I'm afraid Car54 is correct that there is zero data on this important issue.

aus · 12-25-2012, 11:10 AM

Thanks guys.

For the OP, you don't need a cage, track pads or even track rubber if you're starting out. Just go out and have a great time. If you feel intimidated, the BMWCCA is an awesome way to start out on the track. REALLY safe. The more advanced drivers don't like it (but they usually don't give the club enough time to evaluate them to put them in the right class), but it's perfect for beginners.
If you like autocross, you should LOVE tracking.
.

Estoril Blue · 12-25-2012, 01:18 PM

Quote:

Originally Posted by Porschefile

In theory, if the steel plates the bolt in cage is bolted to are thick enough to prevent punching through the floor and if the bolted connections on the cage itself don't shear, then it could be just as strong. But welded cages are generally thought of as safer because they eliminate those variables (steel plates still needed of course, but they typically have bigger ones on welded cages). Plus custom cages are a lot closer to the roof line.

Anything more than a half cage on street is a death wish, and I'm afraid Car54 is correct that there is zero data on this important issue.

Example:

bigjae1976 · 12-25-2012, 05:19 PM

I'd call HMS Motorsports on this subject...they are pretty knowledgable about safety issues like this.

JZBE92 · 12-25-2012, 08:07 PM

Thank you everyone for the information.

I recently did Laguna Seca with an instructor last month. It was superb. I was driving a grandma pace but towards the end of the day, I started to step it up a bit and started passing people. Part of it was just learning all the jargon my instructor was telling me.

I expect to buy a cage when I feel that I'm pushing my car to its limits.

12-25-2012, 09:42 AM	#23
Brainofjjj Astronaut 64 Rep 670 Posts Drives: car Join Date: Mar 2008 Location: Dallas iTrader: (5)	Also, you'd be crazy to drive a street car with a cage. Hello brain damage
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12-25-2012, 10:11 AM	#24
Porschefile Major 59 Rep 1,250 Posts Drives: E92 M3 Join Date: Jul 2008 Location: Tennessee iTrader: (7)	In theory, if the steel plates the bolt in cage is bolted to are thick enough to prevent punching through the floor and if the bolted connections on the cage itself don't shear, then it could be just as strong. But welded cages are generally thought of as safer because they eliminate those variables (steel plates still needed of course, but they typically have bigger ones on welded cages). Plus custom cages are a lot closer to the roof line. Anything more than a half cage on street is a death wish, and I'm afraid Car54 is correct that there is zero data on this important issue.
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12-25-2012, 11:10 AM	#25
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Thanks guys. For the OP, you don't need a cage, track pads or even track rubber if you're starting out. Just go out and have a great time. If you feel intimidated, the BMWCCA is an awesome way to start out on the track. REALLY safe. The more advanced drivers don't like it (but they usually don't give the club enough time to evaluate them to put them in the right class), but it's perfect for beginners. If you like autocross, you should LOVE tracking. . __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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12-25-2012, 05:19 PM	#27
bigjae1976 Major General 1570 Rep 8,076 Posts Drives: 11 E90 M3 Individual Join Date: Mar 2006 Location: Houston, TX iTrader: (22) Garage List 2004 BMW M3 [4.50] 2011 BMW E90 M3 [5.25] 2013 BMW 328i [5.00]	I'd call HMS Motorsports on this subject...they are pretty knowledgable about safety issues like this. __________________ 2018 F30 320iX Melbourne Red 2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue
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12-25-2012, 08:07 PM	#28
JZBE92 I poop at work to save money on toilet paper. 54 Rep 468 Posts Drives: 2012 M3 SOLD, FR-S Monogram Join Date: Jun 2012 Location: SF Bay Area iTrader: (0)	Thank you everyone for the information. I recently did Laguna Seca with an instructor last month. It was superb. I was driving a grandma pace but towards the end of the day, I started to step it up a bit and started passing people. Part of it was just learning all the jargon my instructor was telling me. I expect to buy a cage when I feel that I'm pushing my car to its limits. __________________ 2012 JZB E92 M3 Coupe. DCT/ZCP. Paint Match IND Cosmetic Package, Arkym Bumper, Verstrabe Paddles, LUX Angel Eyes, Vorsteiner double sided CF CSL trunk lid, Evolve Valve Exhaust, 19x9.5 et 21, 19x10.5 et 22 TE37 SL Pressed Graphite
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