1441 replies to this topic

[Gator Bob]

This is just a case of you can lead a horse to water...

 
But a real Tech Nazi can train a puppy dog to sit up and beg or he doesn't get any biscuits.

[Gator Bob]

Bob, you have obviously not attended any of the major races nor some of the other regions where I have prepared the tech sheets. All of them for the day have the key specs for the class on them, too.

I have made these for other regions to include Retro South, New England, Rock Mountain, etc.

I don't travel to 'major races, I'm minor league.
 
Joe, work smarter not harder, don't fill them out for your racers.
 
Online PDF or find 'an app for that'. For those that don't have a computer or a smartphone they can fill out a had copy on site. Tech sheet not filled in completely (_{without stupid **** like "gears-yes"}) - "no race for you"... "Next"
 
Greg, you preach uniform this, spelling police this, fix grammar that, last names required, I'm the iApple man, ...bla,bla bla. ... Why aren't you all over this like white on rice?
 
And you guys think I'm the numbskull. Get real!
 
Rant off.
 
_{Be who you are and say what you want, because those who mind don't matter and those who matter don't mind}

[Cheater]

Greg, you preach uniform this, spelling police this, fix grammar that, last names required, I'm the iApple man, ...bla,bla bla. ... Why aren't you all over this like white on rice?

Because it is impossible to enforce, Bob. It's hard enough just getting people to post race results.

And just how do you suggest the accuracy of the tech sheet data be assured. If a racer puts down he used JK tires, but he really used Kellys, how useful is the tech sheet data? And if you don't think this sort of (intentional or not) inaccuracy was common in the past (heck, even the present I'm betting) you're being naive.

I posted a uniform tech sheet many years years ago HERE and some of its aspects have been adopted by various series.

[Noose]

FWIW, I have made the tech sheets for many of the regions. It does not take all that long to fill one out the day of the race.

[MSwiss]

Joe, work smarter not harder, don't fill them out for your racers.

 

FWIW, I have made the tech sheets for many of the regions. It does not take all that long to fill one out the day of the race.

Joe,

I think Bob thinks you fill them out for the racers. LOL.

[W. J. Dougherty]

Joe,
 
Gator's question about swapping arms is a good one. Guess the best way to do that would be to send the old motors and new arms to a refurbisher and let them do it.
 
Is that about right??

[Gator Bob]

Because it is impossible to enforce, Bob. It's hard enough just getting people to post race results.

And just how do you suggest the accuracy of the tech sheet data be assured. If a racer puts down he used JK tires, but he really used Kellys, how useful is the tech sheet data? And if you don't think this sort of (intentional or not) inaccuracy was common in the past (heck, even the present I'm betting) you're being naive.

I posted a uniform tech sheet many years years ago HERE and some of its aspects have been adopted by various series.

 
It would be the 'job' of the BoD to direct and enforce compliance... if you have it stuck in your head that it is impossible... that's the way it will be.
 
If you are on Slotblog you have a computer, most have smartphones and can do it on the way or at the track when they get there. Fill in what you are running on the hardcopy form or on-line when you get your car set-up as you will be running it. 
 

I think Bob thinks you fill them out for the racers. LOL.

Correct... that is the way I read it.
 

Gator's question about swapping arms is a good one. Guess the best way to do that would be to send the old motors and new arms to a refurbisher and let them do it.
 
Is that about right??

Thank you... I hope the question is addressed.
 
Question for Greg - Why would the IRRA™ rules questions & answers thread be locked?

[John Streisguth]

Probably because it's not an open forum, it's simply to post questions that have come up and the BoD's answer to it, without discussion.
 
That's why this thread is titled "comments and discussion"...

[W. J. Dougherty]

Gator,
 
As for switching arms, since the price difference between the 4002 motor and arm is only $4, you'd be better off just to buy a new motor rather than pay to have the arm switched. Save the $15...

[W. J. Dougherty]

Joe,
 
I'm sorry for the confusion, but with all the new motors out there, what motors are legal for what classes in the IRRA?  Are any pending approval? 
 
Thanks,

[Noose]

There are no motors pending approval.
 
Here is a link to the Quick Reference & Tech Tips Sheet from the IRRA™ website. It has all the info you need.

[usadar]

IRRA Motor Rules 
Applies to: Topline & JK Falcon 7, JK Retro Hawk 
FK, TSR D3, and Slick 7 Mini Brute 
1) All motors must be remain unmodified and as 
produced by the manufacturer.

I would like to know whether or not zapping those motors is against the above rules.
 
Thanks in advance,
 
Haruki

[Cap Henry]

Is it legal to round/ chamfer/ cut the edge of a Koford gear to make them fit since they're too wide? Swiss indicates in his post that it is, But I feel that doing that is different then sanding the diameter down? If this is allowed I see excessive rounding happening to lighten the gears...

13. Drive Gears: Any drive gear and ratio may be used. Crown gears must be commercially available and the only modifications allowed (other than making your own sleeve) are sanding of the diameter of the gear and heating/burning it in for a smoother gear mesh. Disallowed modifications would include, but are not limited to, lightening, drilling, reversing the gear on the hub, repositioning the set screw hole, changing or reconfiguring the hub, and/or any other changes to the gear's size or appearance as compared to the stock production gear.

Rounding the edge would both lighten AND change the appearance, right?

[Noose]

The gear on the right is illegal period. Light sanding is allowed and the edge of the gear will typically get rounded a bit in the process.

[Gator Bob]

Cap .. that one looks a bit Rough Around The Edges ...

[Cap Henry]

Sanding the OD was the only thing allowed, and that surely wouldn't cause the edge to be rounded more.

How much sanding is allowed before it's illegal?

[Mike Patterson]

I don't sand, I scrape. I use the back edge of an xacto blade, and hold it against the spinning gear (you need some speed here, a tire truer is too slow. i use an old electric drill). I've ground down a 29 tooth enough to pass tech. I've never tried a 30.

[Ralph Thorne]

Why is the gear on the right not legal? It has a rounded edge for chassis clearance which is what was just ruled as legal.

[Gator Bob]

FWIW ... I don't sand my Parma 29s on a Hudy and they do seen to get a little 'crowned' doing it freehand.

[Rick]

I cut my 29 and 30's on my com lathe, no chamfering or tapering, at all..................

[Cap Henry]

Bob proved me wrong, but I still feel that's different then grinding for chassis clearance.

[Gator Bob]

I cut my 29 and 30's on my com lathe, no chamfering or tapering, at all..................

 

How much for the 30s? Final OD?

 

Bob proved me wrong, but I still feel that's different then grinding for chassis clearance.

Not really, I try to get them straight across .. LOL

And ... yes it is way different than grinding brass.

 

So Cap ... was the gear on the right just to 'prove' how un-true they can be?

 

Alsooooo .. and for what it's worth ... since 'tips and tricks' are posted all over Slotblog, I use a short hollow setscrew in the non-drilled side of the hub and torque them both down gently before the final 'crank' on the drilled sleeve side.

 

Don't know if it does a damn thing except make me feel like a good racecar mechanic in 'my' head.    

[Cap Henry]

Bob, you're allowed to round/ chamfer the gear itself for clearance. The picture was an example of what can happen when that's allowed.

So my question is, what's the rule for chassis clearance vs lightening

[Gator Bob]

The rule IS ... "The Rule".

 

So it is written so it shall be done.

[John Miller]

Re: Gear's

 

I recall that the outside diameter of the gear could ONLY be sanded to obtain proper track clearance. Now that a favored manufacturer makes a gear that that is to wide, suddenly the rule is open for creative interpretation.  lol

 

Reading the highlighted portion of the rule, it appears very clear that chamfering the width of the gear is illegal.

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