1441 replies to this topic

[Noose]

Yes, Mike. The IRRA Rules are intended for national races. The items you mention can be handled locally should a region elect to utilize the IRRA rules.

[Pablo]

Body clips: some of us like them. Would it be legal if I set up my chassis to use them instead of pins?

Thrashing for Ohio in 2008...

[Tex]

I don't see why not but I'm just the janitor here.

[Mike Patterson]

I have some questions about front wheels. They've probably already been answered elsewhere on this forum, but this way I can have all the answers in one place !!

1) I have read that the tires may be coated. With what, paint, super glue?

2) Does the tread surface of the tire have to be parallel to the track surface, or is it permissable to have a slight taper, so that the tire rides only on its outer edge?

Any clarification would be appreciated.

Mike

[IRRA Retro Racing]

Q: Body clips: some of us like them. Would it be legal if I set up my chassis to use them instead of pins?

A: The use of body clips is an acceptable means of body mounting in all classes.

(Posted by Joe Neumeister for the IRRA Board)

[IRRA Retro Racing]

Q: I have read that the tires may be coated. With what, paint, super glue?

A: Typical coatings used are black nail polish, super glue, or paint. There is no restriction on what can be used.

Q: Does the tread surface of the tire have to be parallel to the track surface, or is it permissable to have a slight taper, so that the tire rides only on its outer edge?

A: Intentionally tapering and/or excessive edge-rounding of front tires for the purpose of reducing the tread width in contact with the track is not allowed.

(Posted by Greg Wells for the IRRA Board)

[Bill from NH]

What do the rules say about types of piano (music) wire? Anything? I have both steel & stainless steel piano wire in various sizes. Are both types legal for chassis building?

[Noose]

Steel is steel. We did not differentiate between the two as we didn't for brass.

[TSR]

Neither does D3. We actually recommend its use by all my competitors. Really. Please make my day.

On another subject and so as to help create a common set of rules one of these days, this is the illustration of the D3 spoiler rules:



Easy to figure out?

[MSwiss]

TSR,

I suggest you remove your illustration as not to confuse viewers looking for IRRA info.
The IRRA is the intellectual property of Joe Neumeister, Dennis Samson, etc., etc., etc.
Anyway, you're not one of the "etc."

[Tex]

The illustrations are good, nonetheless. If this is SoCal's take on how to apply the rules regarding a 1/2" spoiler, I think it's worth looking at and discussing.

His post does specify "D3"; we'll just have to hope most people reading here can differentiate between "D3" and "IRRA".

I think Philippe is holding out an olive branch of sorts, regarding a "common set of rules", and to dismiss it summarily without addressing the subject at all, based upon a technicality, is not in the best interests of all D3/Retro racers collectively.

[Noose]

Wow. I'm intellectual now. Cool. Thanks, Mike. Thanks PdL for the illustration. It is something we are dealing with too and all input helps.

[TSR]

My pleasure always. One of these days we will all agree on something and regardless, all retro racers are here in a community of friends.

[MSwiss]

After having the displeasure of informing someone stainless steel sheet is not legal for his F1 chassis, I just don't want someone browsing on a thread marked "IRRA" and assume that illustration is an IRRA rule.

Until the IRRA adopts the same rule, IMHO, a link to that illustration would be more appropriate.

[Tex]

A reasonable request.

[One_Track_Mind]

After having the displeasure of informing someone stainless steel sheet is not legal for his F1 chassis,

NAH!... don't worry it about, Mike... our resident Pablo beat you to it!

It's cool, it was a learning experience for myself.

Water under the bridge.

[Pablo]

Learning is good.

[MSwiss]

Personally, I think it should be allowed. One less thing to police, and I bet the racers back in the day also did it. It's a pretty obvious improvement to make to your front tires.

Narrowing your fronts to a point is counterproductive on these cars, especially with F1s.
Dave Fiedler had the dominating F1 car at the Sano using the stock .420" wide JKs.
They act as outriggers/dampeners.

[Tex]

Well the race techs are missing this then. I've seen several race photos of cars with tapered front tire treads.

I'd hazard the guess that those races weren't run under IRRA rules.

[Noose]

Phil,

FYI, F1 IRRA rules require .350" min and .400" max fronts.

[Tex]

I'll look for it in IRRA race pics when I get time.

Good luck. Since the IRRA rules were only first published on 11/19/07, I'm not sure how many races have actually been run under IRRA rules.

[Pablo]

F1 IRRA rules require .350" min and .400" max fronts.

Joe, my IRRA Rules, dated 11/19/07, say F1 min. front width .375", and does not state a max width. Am I reading an outdated copy?

[Noose]

Duh... no. LOL. You are right, .375" is the min. I'm sorry. The max was not put in because the ones sold usually come in .400" width.

[Mike Patterson]

I have a couple of questions:

1. Can the front axle supports be attached to the nose piece or the pans?

2. I have a Can-Am body without a molded-in driver. According to my interpretation of the rules, I cannot leave the area over the cockpit clear, and just make a hole for the drivers head, right? I have to cut out that whole piece, thereby destroying what little aero the body has to offer, correct?

Thank you for your clarification.

[Pappy]

Mike

The rules say "All bodies must carry a painted (at least two colors), fully-molded three-dimensional interior comprising a driver (helmet, sholders, and arms), a steering wheel and cockpit representation".

So the answer to your question is "yes", you must cut-out that area and place a painted three dimensional interior/driver there.

I don't want to answer the other question and will let other rules members chime in.