261 replies to this topic

[proptop]

I'm O.K. with 2 minute heats...

At one time I was considering an old Slotworks Outlaw 16D arm (70T of 30 on a .500 long stack) in a Mabuchi set-up...but youze guys talking of 26's or double 29, etc. makes me think that I'd be bringing a knife to a gun fight...

 

If the cars just go on to the next raceway, I'm O.K. with that too, but I'm wondering is some sort of Raceway supplied rear tires should be used?

My main concern is choosing the wrong rubber for the track surface?

 

Would it be O.K. to suggest we each buy a set of rear tires (from the hosting track owner) that the track owner knows work best on his track surface? (or is that a "speed secret" that some of you guys had already thought of but were gonna do on the Q.T.? )

I have lots of SBR tires, and can skim 'em on my truer, but will they work?

Will there be spray glue, or ???

 

Did I see a braid depth measurement somewhere...I thought I'd read .040 someplace (seems like a lot, .040?) is that correct?

[Gator Bob]

Phil, must of missed that 'episode'

But I like Will, think he's great. Play this when I break-out the chassis jig and start polishing the pins.

Then this one from BiTD that sounds similar  

[SlotStox#53]

Don't worry on the double #29, the silver wire Mura arm "untied" may or may not appear in a motor. Gotta tie and epoxy it properly, it could just run one heat and burn up

Was just an arm that's in the spares box wanting to be used

There are other options including the old fave, 55 turns of 29#

[Gator Bob]

I'm O.K. with 2 minute heats...

At one time I was considering an old Slotworks Outlaw 16D arm (70T of 30 on a .500 long stack) in a Mabuchi set-up...but youze guys talking of 26's or double 29, etc. makes me think that I'd be bringing a knife to a gun fight...

That combo might be the best ... guys that bring guns might just shoot themselves in the foot (or launch the bank)      

 

 

If the cars just go on to the next raceway, I'm O.K. with that too, but I'm wondering is some sort of Raceway supplied rear tires should be used?

My main concern is choosing the wrong rubber for the track surface? 

Would it be O.K. to suggest we each buy a set of rear tires (from the hosting track owner) that the track owner knows work best on his track surface? (or is that a "speed secret" that some of you guys had already thought of but were gonna do on the Q.T.? )

 

Q.T. ...

BTW: there is a pre-race testing ban in place at the Raceway and any other tracks the move on to. THAT would NOT be fair... and there is no 'right rubber' for these cars.

They have to slide (drift) a little or they roll over like turtles.

If you want 'local fresh' tires:

• Send a tire note to Bill Pinch along with the appropriate fee via Paypal. 
• Specify type/brand (or let him pick) and O/D ... I think it's a couple of bucks for him to true them to your size/clearanace.

I have lots of SBR tires, and can skim 'em on my truer, but will they work?

Will there be spray glue, or ???

 

If the SBR is not 'stale' it should be fine. Might even be the best.

Whatever glue that's on the track will be from a previous race.

 Not 're-glued' for this event. If the some of the cars are 'stupid loose' we could run those down the drag strip first or I'll treat them with Trinity.

 

Did I see a braid depth measurement somewhere...I thought I'd read .040 someplace (seems like a lot, .040?) is that correct?

Yes ... scary ain't it  

 

[Gator Bob]

There are other options including the old fave, 55 turns of 29#

 

     Yup ... that's 'hot' for these since the chassis' are 'stock'.

[proptop]

Thanks Bob...food for thought there...

 

I believe I have a plan...now...(until I change my mind again that is... )

[Gator Bob]

Who's going to donate a set of Sloppy Sams for this project? .....

 

I sent mine to Rick to check out.

 

They are 'complex' and could be costly. If you guys want them speak up.

[macman]

I know I am late, & so this would be a theoretical question, but would this be legal??? It was the still born beginning of my entry for the 2011 Dynamic Challenge...

Attached Images

• 

[Gator Bob]

Yes Ben, that's the kind of stuff we're running.

Git-r-done and Please join us.

[Asp]

Hi,

I have started going through my Dynamic parts and have a few (maybe naive) questions for the Proxy race

Inline or Sidewinder?

Rigid or Dynaflex?

LWB or SWB?

What approx gear ratio?

Has anybody a good supply of the original machine screws for the chassis?

Thank you in advance,

Luciano

[don.siegel]

Hi Luciano, 

 

The first four questions mainly depend on what motor and body you choose... (Dynaflex seems to work best when blocked!). I've seen fast IL and SW setups; the fastest I've seen are SW, but with additional brass weight in the front... 

 

A long wheel base is generally more controllable than a SWB, and might be better for proxy races. 

 

I have a bunch of the 4-40 machine screws for the chassis if you need some...

 

Don 

[Asp]

Thank you, Don.. that was quick.

I will probably use a Havlicek 26D and I usually prefer Sidewinder.

I'll send a pm for the screws

 

Luciano

[Gator Bob]

Welcome Luciano !  

 

A 26D S/W should be a very good combination.

Now ... how to get an ASP body to fit it ....    

[don.siegel]

Ah, he may have one of those Italian Thingie bodies (Super Aerodinamico...), in which case we're all dead! 

 

Don 

[Gator Bob]

I know trouble when I read it ... but I can't even say the name of that body...

 

Can I just call it a Super Aero ?

[Asp]

The complete name is Unicar Barchetta Superaerodinamica..rather a mouthful even for an Italian native.

Lucio Cocchi was making a repop but I just heard he may have stopped.

I am staring at my Dynamic parts right now pondering on the various options, but the october Thingies meeting is not far away and I need to be prepared. The competition is getting stronger and stronger and that meeting is a lot of fun and not to be missed.

 

Luciano

[Gator Bob]

Phil, which 3 tracks were you thinking of for the 2nd leg?

 

What a cool place!    

 

220' American Sovereign


155' Gerding G7 King

 

135' American Aristocrat

90' Ogilvie Figure Eight

[proptop]

I love those tracks...and wish they weren't so far away...

 

After looking at the short / tight oval in Bob's pic above (in Florida) and then thinking of the monster mile...just what sort of "compromise gearing" should be done...???

 

Personally, I would prefer to do my own maint. between rounds, and could do a gear ratio change, but...I can also see the benefits of just shipping 'em all from one speedway to the next, soooo....

 

Just a question / suggestion...would it be o.k. with ya'll if we included a gear change for the fast tracks in Mass.? (they could swap our gears there?)

 

I mean, going from a 65' really tight / short oval to a 220' Mile...

 

whatdoyathink?

 

I will stick with KISS and no gear changes, if that's what everybody else wants,  but...

[Gator Bob]

In the 'other' Dynamic Challenge we traveled the world with one gear ratio.

 

It's a compromise ... you got what you got. Suck here, fast there.

 

The cars really need a gear change for every different track they run on.

 

RULE: One gear ratio. Done!

 

Sorry, have to get autocratic and lock the cages. Right Jarius?

 

Put a 2.9 to get down the chute on the big Purple Mile ... and .... how's those brakes on the Royal?

 

Short oval, drag strip, 2 hillclimb, monster mile .... pick your poison. Smoke-it, you broke it.

[don.siegel]

Good decision Bob, all for it. 

 

Of course, I'm going to use an automatic gearbox, like Jim Hall...

 

Don 

[Gator Bob]

Thanks Don!

 

You've been around this block before.

 

Think of how many races "Mr. Hall"  (insert bowing motion here) would have won if it wasn't for the 'line pressure' from GM to run those transmissions.

[proptop]

Well, I guess I got my answer...

 

I think it was on Wide World of Sports...1967? Watching the 2F (IIRC) and the "flipper wing" and the talk of the pedal that controlled it...and the Chevy Big Blocks having too much power for the automatic transmissions...lots of failures...Jim McKay (sp?) and Chris Economaki (sp?) and all those guys who would typically do the commentary...

 

My dad and I were Mercury Men   (and Ford of course) and I wasn't unhappy at all when the Chaparral's trans went blooey...

 

Dad had a '67 Cougar with a "Dan Gurney Special" package on the 289...I think all it was was a dealer installed chrome dress-up kit...

I was 7 years old, and the "pit crew"...my job was to keep the chrome polished, and periodically check the radiator and battery water...(I remember the Autolite batteries with the 6 individual screw in caps...and no overflow catch tank on the radiator)