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Author Topic: Clarification on push bar  (Read 13175 times)

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Offline desotoman

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Clarification on push bar
« on: May 16, 2011, 02:13:23 PM »
I need “clarification on the push bar rule” before I build one of these for my Modified Roadster. The following picture shows the push bar on a Roadster that just set a new record at El Mirage.

The 2011 SCTA Rule book, Car Competition Specifications, Section 2.I Push Bars, page 20 states,

“All cars incapable of starting under their own power shall be equipped with bumpers or push bars. Push Bars shall not offer any aerodynamic advantage. No horizontal paneling is allowed between the rear of the body and the bumper / push bar. No tow starts are permitted from the starting line without special approval. All cars shall be equipped with a push bar or a readily available tow attachment.”

I'm not sure if there is an aero advantage, but how far out from the body are you allowed to put horizontal paneling with holes in it?  Could I extend it another 6 or 12 inches?  How much flat paneling is allowed as long as it has holes in it? What is the percentage of horizontal surface that must not be exceeded? Is there a height requirement for the push bar?

Any help appreciated,

Tom G.  
« Last Edit: May 16, 2011, 02:16:35 PM by desotoman »
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Offline gearheadeh

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Re: Clarification on push bar
« Reply #1 on: May 16, 2011, 02:26:07 PM »
I can't wait to see where this one goes! :mrgreen:
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Offline 38flattie

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Re: Clarification on push bar
« Reply #2 on: May 16, 2011, 04:33:14 PM »
Didn't Roy Fjastad's 777 modified roadster have a push bar that looked like a wing? I believe that gfisher, the current owner of the roadster, mentioned that to me. Doesn't mean it's legal, I'm just asking.


EDIT: Here's a pic
« Last Edit: May 16, 2011, 05:56:57 PM by 38flattie »
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Offline Stan Back

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Re: Clarification on push bar
« Reply #3 on: May 16, 2011, 10:08:39 PM »
How in the H could that possibly be considered a horizontal panel?  It looks 2 or 3 degrees off to me!

Stan
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Offline desotoman

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Re: Clarification on push bar
« Reply #4 on: May 18, 2011, 03:13:26 PM »
Where is the tribal knowledge on this subject?  What percentage of the surface area of the flat plate has to be drilled for this to be legal? Do the holes have to be located within a certain portion of the flat plate?  The picture looks to be no more than 5-10 percent of the area of the flat plate. Is that what the percentage is? Someone must know.

Tom G.

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Offline nrhs sales

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Re: Clarification on push bar
« Reply #5 on: May 18, 2011, 03:31:34 PM »
Where there is a rule, there is always an LSR racer looking for a way around it!!  :-D
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Offline dw230

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Re: Clarification on push bar
« Reply #6 on: May 18, 2011, 05:12:42 PM »
Tom,

Contact Russ Eyres per my suggestion. You won't get an answer here. Second thought, you will get an answer and it may be the one you want.

DW
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Offline maguromic

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Re: Clarification on push bar
« Reply #7 on: May 18, 2011, 05:32:13 PM »
Tom, From what Russ told me it is legal to run as long as it doesn't touch back of the body and their are holes drilled in it.  Somewhere in my files I have his email conforming this.  Tony

Picture by Woody.
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Offline desotoman

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Re: Clarification on push bar
« Reply #8 on: May 19, 2011, 01:22:28 AM »
For General information, I sent an email to Kiwi Steve and Russ. Kiwi Steve told me to contact DW, which I did. DW told me it was legal because of holes and to contact SCTA rule clarification at SCTA website which I did. SCTA website got back to me and said they had forwarded it to the Roadster committee. I still have not heard from Russ and I emailed him direct and SCTA forwarded him the question I sent to them. So I guess it is in Russ's hands now for a clarification on what I can or cannot do.

Thanks,

Tom G.
« Last Edit: May 19, 2011, 01:26:13 AM by desotoman »
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Offline Rex Schimmer

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Re: Clarification on push bar
« Reply #9 on: May 19, 2011, 10:10:54 AM »
Tom,
Can't you see that this is a very "multi-functional" down force device. It looks like it weights a ton, they have a block of lead bolted to the bottom, it possibly, maybe, kind of, almost could generated some aero down force, it is a push bar and most importantly you can use the holes to hold your Starbucks while you are waiting in line!!! If you ask me, and you shouldn't , every car should have one.

Don't forget to measure the bottom of the Starbuck's venti cup before you drill the holes.

Rex
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Offline SPARKY

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Re: Clarification on push bar
« Reply #10 on: May 19, 2011, 11:26:26 AM »
summ u roadster guys velly velly trickee  :-D
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Offline Bob Drury

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Re: Clarification on push bar
« Reply #11 on: May 19, 2011, 11:40:33 AM »
  Man, I could use one of those to sit on waiting for the push truck/cold beer delivery after a run.
  And no, climbing back into the car is not a option with a 25 gallon tank of hot water in the passenger seat............... 
  Maybe I could make a fold down one....................  :roll:     Bob
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Offline LSR Mike

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Re: Clarification on push bar
« Reply #12 on: May 19, 2011, 12:33:16 PM »
Make it retractable....
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Offline krusty

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Re: Clarification on push bar
« Reply #13 on: May 19, 2011, 04:18:54 PM »



    In keeping with the most recent modified roadster rules, I think that the surface should not cover more than 65% of the perimeter, that is, it should have 35% holes  :evil: ( and not a bunch of really small ones).     vic
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Offline WOODY@DDLLC

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Re: Clarification on push bar
« Reply #14 on: May 19, 2011, 04:57:50 PM »
Oh look! Another one just like the other one!! :-o
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