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Author Topic: Petty Bars
Todd Greene Made Donation to Website
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Region: Alabama
Car #: 86sm
Year : 1995
Posts: 67
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Just curious...

Why do so few cars have petty bars?
(FWIW, I don't have one either.)

Todd

cpdenis
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Region: 11
Car #: 09
Year : 99
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Licensing fees are prohibitive.

d mathias Verified Driver Made Donation to Website
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Region: OVR
Car #: 88
Year : 1991
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I prefer the 'Allison' bar.

Bill Pruitt Verified Driver Made Donation to Website
You know you miss him...

Region: WMR
Car #: 18
Year : 1995
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Petty bars were developed by a UM graduate engineer. I'm sure that's correct.

d mathias Verified Driver Made Donation to Website
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Car #: 88
Year : 1991
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That's what the students say up north - UMMMMMMMMM.

BTW - I added a Petty bar to my cage years ago, haven't tried it out yet. (feeble attempt to stay on topic).

soupy
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Region: Mohud
Car #: 98
Year : 1999
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My question would be: Why Not?

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Charlie Campbell
Race Engineering
carbotech brakes

rmgroth Series Champ
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I see quite a few cars with Petty-ish style bars running forward at a diagonal. Does this stiffen the chassis substantially besides the obvious safety benefit (or hindrance if you need to get out of the other side?)?

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Ryan Groth
#52 SM
NASA Midwest Series Director

Jamie Tucker Series Champ

ARRC 2010 Champ

Region: CFR
Car #: 97
Year : 1990/99
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I was told that it adds strength to the cage while stiffening up the car. I have them in my cars and I can still get out over the bar if I need too. Of course I am only 5'5" so that helps.

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2010 ARRC Champion
2010 CFR Champion
2010 instigator of the year
2010/2011 Andrew Von C Wingman

davew Verified Driver Made Donation to Website
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Region: chicago
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Year : 90 and 90
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A lot of guys like having a passenger seat, so they don't want a Petty Bar.

In a well built cage, I don't think it adds much. In a generic bolt in cage, it probably adds a lot of strength.

My 2cents
Dave

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Drago Verified Driver Made Donation to Website Series Champ
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Car #: 2
Year : 1999
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IMO in our cars,with our cage rules and the amount of grip generated by these tires. I think the cage is a safety device and provides little usuable benefit in the "stiffening' department.

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Jim Drago
East Street Auto Salvage
jdrago1@aol.com
2006-2007 Mid-West Division
07,09 June Sprints Champion

EAST STREET RACING

OPM AUTOSPORTS INC Verified Driver Made Donation to Website
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Region: Atlanta
Car #: 60 65 67
Year : 1990 1999 2002
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quote:
Originally posted by Jamie Tucker:
I was told that it adds strength to the cage while stiffening up the car. I have them in my cars and I can still get out over the bar if I need too. Of course I am only 5'5" so that helps.

In heels [duck]

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-Tom Fowler-
OPM Autosports / SMAC MEMBER
http://www.opmautosports.com

Jamie Tucker Series Champ

ARRC 2010 Champ

Region: CFR
Car #: 97
Year : 1990/99
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Ouch!!! I should have saw that one coming. [Smile]

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2010 ARRC Champion
2010 CFR Champion
2010 instigator of the year
2010/2011 Andrew Von C Wingman

OPM AUTOSPORTS INC Verified Driver Made Donation to Website
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Region: Atlanta
Car #: 60 65 67
Year : 1990 1999 2002
Posts: 238
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Even from down there [yep]

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-Tom Fowler-
OPM Autosports / SMAC MEMBER
http://www.opmautosports.com

David Dewhurst
Veteran Member

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***I think the cage is a safety device and provides little usuable benefit in the "stiffening' department.***

Trust me Dude, this is not for arguement. [Wink]

Open the doors on a Miata without a roof. Measure between the door opening at upper most you can. Now jack the car up on both sides mid door opening. Take the same measurement again. Next do the same to a caged car. Please report results. If I had a Miata without a cage I'd do it.

Dave Wheeler do you have an uncaged car?

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Have Fun [Wink]

David Dewhurst
CenDiv
Milwaukee Region
Spec Miata #14

Motor City Hamilton
Member

Region: Great Lakes/Detroit
Car #: 51
Year : 1994 Miata
Posts: 401
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I chose to go with no Petty bar for a different safety reason. I thought it would hinder a quick exit out the passenger window if that type of exit would be needed. I know that fires are rare in our class, but that's the one thing that frightens me.

CP Verified Driver
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Region: NER
Car #: 7
Year : 1999
Posts: 636
Status: Offline
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I've got a sleeved removable petty bar in my car. I thought I'd be using it for HPDE with two seats, thus the need for a removable bar. That idea has since been thrown out the window, so the bar stays put in the car now.

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-Cy
Supported by LTD Racing & Speed Shack - New England's Premier Auto Accessory Store
Rt1 AutoMile - Norwood, MA
http://www.speedshackonline.com

rkhonea
Junior Member

Year : 1991
Posts: 1
Status: Offline
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Hi guys, I'm a new member, (hope I'm doing right) I bought a used SM that has a petty bar in it. Can you remove a welded one without compromising the cage or car?

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rkhonea

Drago Verified Driver Made Donation to Website Series Champ
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Car #: 2
Year : 1999
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Yes you can. no problems.

--------------------
Jim Drago
East Street Auto Salvage
jdrago1@aol.com
2006-2007 Mid-West Division
07,09 June Sprints Champion

EAST STREET RACING

   

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