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"The Dynamic Challenge" of 2015


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#151 proptop

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Posted 01 August 2015 - 11:22 PM

Thanks for the link Phil...

I will check 'em out...might be a bit bigger than I had planned though...?

I was envisioning (hoping for) something around 3/4" dia. X about 1/8" to 1/4" wide...because the body I intend on using has limited front wheel area... :D height wise...


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#152 don.siegel

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Posted 02 August 2015 - 03:06 AM

You can also get any small Dynamic wheels and use some thread adapters that screw into the wheels, made by Dynamic! I have an extra pair or two if you go this route. 

 

Don 



#153 Gator Bob

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Posted 02 August 2015 - 09:15 AM

Hi Tom,

Build them as Dynamic as you can .... but on the wheels you have options.

 

Those #626 fronts are 'bulky' for the #586 wire front.

 

Don's suggestion of the screw in reducers is the way to go if you are using vintage fronts.


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#154 proptop

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Posted 02 August 2015 - 09:47 PM

Ah yes...I have at least one pair of those 5-40 to 1/16 adapters in a box 'o stuff...I recall seeing them a while ago...thanks for the offer though Don!

 

They might be Champion wheels and adapters...but that should be O.K. aye Bob (I know you like Champion stuff too...)

 

Just had a thought...I could also use some 1/32 scale threaded fronts if clearance (Clarence) becomes an issue.


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#155 Gator Bob

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Posted 02 August 2015 - 11:26 PM

Sure Tom ..they are fine.

 

I believe the Champion and Dynamic are the exact same part.

 

It's part of the wheel anyway, any wheels are allowed.


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#156 Gator Bob

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Posted 10 August 2015 - 10:19 AM

Here is the new oval we will run on.

 

It is much 'tighter' than the other oval it replaces. I'll get the braid depths posted when it is complete.

 

11822728_736870516423066_422735022159018


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#157 don.siegel

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Posted 10 August 2015 - 10:24 AM

Hi guys, 

 

Can I ask what kind of body you're looking at? I'm a little lost as to what to use... Found what seems to be a repop of a competition style Lola T70, also a more modern Ferrari 612 - is this the era/style we're looking at? 

 

Don 



#158 SlotStox#53

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Posted 10 August 2015 - 10:37 AM

Track is looking good Bob :good:

Don, as far as bodies go its my understanding anything produced upto 1970. Thingies,F1,Indy,Sports GT,CanAm including repops.

No "custom one offs" and the Thingies have to be production based ones upto 1970, including the Choti types.

#159 Gator Bob

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Posted 10 August 2015 - 11:26 AM

Hey Don...

 

Paul has it right, :good:

 

There is no real theme as far as bodies go.

Can-Am, GT, F1, Stock, Sports,Drag, Modified, Street, Truck or futuristic.

 

As varied as these tracks are I don't think there would be much advantage in choice of body.

 

Run your favorite  :D  So many choices :crazy:  :victory:

 

VW bus or a Motorhome?  :shok:  :laugh2:


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#160 JohnnySlotcar

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Posted 10 August 2015 - 01:16 PM

Farmtruck! Farmageddon for all! ROFL


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#161 Gator Bob

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Posted 10 August 2015 - 07:20 PM

That's funny .. Lee Fish who dives in the drag proxies often runs a cool hardbody copy of the Farmtruck in weekly dial-in.

 

Drag guys bring so many cars ...


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#162 Phil Worthy

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Posted 22 August 2015 - 08:30 PM

We need feedback on the following:

Do we want to continue at Modelville with these rules?:

- 1.5 minute per lane on roadcourse and oval. (no-smoke)
//Or go to 2 minute heats//
- Four drivers, 4 cars start and next four come in round robin, driver stays in lane and cars are separated by one so we can 'drift' in the corners and reduce carnage.
//Or go with eight drivers at once//

Where are the manly cars? (Having said this, mine will be the first to explode!)

Thoughts or suggestions?

Also, does anyone have a raceway that wants to host a third leg, builder or not?

***Any ideas or leave it as is?***

What's the power on the tracks there Phil?

I believe 12.5 volts, but I will check.
 
A big difference is if the cars go straight to the next track or come back to the shop first.


This needs to be decided. I think the cars should go straight from Florida to Massachusetts. Builders can include a crown gear change if they chose to be done before the start of the Modelville race. Feedback is needed here.

#163 Gator Bob

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Posted 22 August 2015 - 09:16 PM

I'll run Modelville.

 

 

If they go home first = gear change ok

If they ship straight up = no gear change. Can't expect the host track to work on 'all' the cars.

 

1.5min or 2min I'll run something like the Badass Team Cresskill car or this 'other thing' I'm working on.

How about an Enduro - 1.5hr or 2 hrs. per lane .... I'll let Marvin run Dyn-Astro  :o   

 

Phil - is it a tech savvy store.. internet/livestream?


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#164 Gator Bob

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Posted 22 August 2015 - 09:19 PM

 REGISTRATION is back open for this event !!!

 

 

We decided that more than 8 cars would be fine at Melbourne.

 

I'll need a firm count to order the awards.


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#165 Phil Worthy

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Posted 22 August 2015 - 10:25 PM

I'll run Modelville.
 
***What do you mean? Shall we plan on a guest appearance?🐊***
 
If they go home first = gear change ok
If they ship straight up = no gear change. Can't expect the host track to work on 'all' the cars.

***A crown gear change shouldn't be a problem. I think we can handle that if people want it.***

 
1.5min or 2min I'll run something like the Badass Team Cresskill car or this 'other thing' I'm working on.
How about an Enduro - 1.5hr or 2 hrs. per lane .... I'll let Marvin run Dyn-Astro  :o   

***Let's do the enduro at your place on the oval 😉***

 
Phil - is it a tech savvy store.. internet/livestream?


Gah, come on dude, we've got retro tracks! Thought we might do a bit of video, though, if I can work it out. I know the guys would like to see their cars in action.

#166 don.siegel

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Posted 23 August 2015 - 03:40 AM

Hi Bob, 

 

I would say 2 minute heats - a minute and a half is really short! 

 

Also, 8 drivers at a time - let em run under real conditions! 

 

If they're being shipped elsewhere, I would suggest some shop time between the two, if you guys are willing... not necessarily gear changes, but anything that needs to be tightened up, or replaced if broken... (take the front axles on Dynamic chassis, please!). 

 

Don 



#167 Gator Bob

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Posted 23 August 2015 - 09:05 AM

Hey Don !

 

I'm fine with 8 on the track or 2 minutes on. The 1.5 was because I thought someone might be running a 24 single. LOL ... not me.

 

If the cars do go back to their 'shops' for checkout/repair/gear change I would be happy to take care of your car if you would like to avoid all the shipping time/cost. 

 

Gentlemen - That offer stands for any 'imported' entries.

 

I sure wouldn't want to see guys get 'motored up' for the Purple Mile.

 

Gears, tires, braid, tighten (Loctite) screws, body repair ....

 

Shipping them straight to the next track with NO CHANGES might be the most fair all entered.


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#168 Gator Bob

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Posted 23 August 2015 - 09:25 AM

***What do you mean? Shall we plan on a guest appearance?***

 

There are 'set rules' against that. :diablo: 
 
If they go home first = gear change ok
If they ship straight up = no gear change. Can't expect the host track to work on 'all' the cars.

***A crown gear change shouldn't be a problem. I think we can handle that if people want it.***
 

What about the sidewinders? ... :clapping: 
 
1.5min or 2min I'll run something like the Badass Team Cresskill car or this 'other thing' I'm working on.
How about an Enduro - 1.5hr or 2 hrs. per lane .... I'll let Marvin run Dyn-Astro  :o   

***Let's do the enduro at your place on the oval ***

 

OK!!!  :laugh2: 

 
Phil - is it a tech savvy store.. internet/livestream?

Gah, come on dude, we've got retro tracks! Thought we might do a bit of video, though, if I can work it out. I know the guys would like to see their cars in action.

 

:good: break in to my happy dance  :dance3:  :sarcastic_hand: 
 


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#169 Jay Guard

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Posted 23 August 2015 - 10:05 AM

I'd recommend just shipping the cars straight to the next race location.  I suspect most of the locations wouldn't mind doing a few minor things to the cars like tightening the gears/tires and straightening the braid.  As for changing the gears I'd say no, one gear ratio "fits all", that's all part of this kind of race.  You may be a bit slow on one track but perfect on some of the others.


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#170 SlotStox#53

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Posted 23 August 2015 - 10:09 AM

Just ship em on and see who's got the best compromise between acceleration/top speed and hopefully some brakes :laugh2:

No single #24 although a double 29#/single 26# could be finding it's way into the car.

Out of curiosity, what sort of ratio for a middle of the road type motor running on say the Purple mile or the hill climb ? Never ran on tracks as big before so the team is in the dark :shok:

#171 Gator Bob

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Posted 23 August 2015 - 10:27 AM

I'd recommend just shipping the cars straight to the next race location.  I suspect most of the locations wouldn't mind doing a few minor things to the cars like tightening the gears/tires and straightening the braid.  As for changing the gears I'd say no, one gear ratio "fits all", that's all part of this kind of race.  You may be a bit slow on one track but perfect on some of the others.

 

I agree.

 

The 2011 Dynamic Challenge was run that way and it worked.


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#172 Phil Worthy

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Posted 23 August 2015 - 10:35 AM

I'll run Modelville.

 

***What do you mean? Shall we plan on a guest appearance?***

 

There are 'set rules' against that. :diablo: 

^^^ I'm sure. :D ^^^
 
If they go home first = gear change ok
If they ship straight up = no gear change. Can't expect the host track to work on 'all' the cars.

***A crown gear change shouldn't be a problem. I think we can handle that if people want it.***
 

What about the sidewinders? ... :clapping: 

 

^^^ I've got a bad case of retro brain.  :crazy:  Spur gears too. Just no pinions or idler gears. ^^^

 

Jay Guard said,

 

"I'd recommend just shipping the cars straight to the next race location.  I suspect most of the locations wouldn't mind doing a few minor things to the cars like tightening the gears/tires and straightening the braid.  As for changing the gears I'd say no, one gear ratio "fits all", that's all part of this kind of race.  You may be a bit slow on one track but perfect on some of the others."

 

^^^ Of course this makes perfect sense and is fine with me. I was just thinking about options because I remember people dying for a gear change. ^^^

 
1.5min or 2min I'll run something like the Badass Team Cresskill car or this 'other thing' I'm working on.
How about an Enduro - 1.5hr or 2 hrs. per lane .... I'll let Marvin run Dyn-Astro  :o   

***Let's do the enduro at your place on the oval ***

 

OK!!!  :laugh2: 

 
Phil - is it a tech savvy store.. internet/livestream?

Gah, come on dude, we've got retro tracks! Thought we might do a bit of video, though, if I can work it out. I know the guys would like to see their cars in action.

 

:good: break in to my happy dance  :dance3:  :sarcastic_hand:

 

^^^ Is that anything like the "The Carlton?" We are all waiting to see... ^^^
 



#173 Gator Bob

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Posted 23 August 2015 - 10:36 AM

Just ship em on and see who's got the best compromise between acceleration/top speed and hopefully some brakes :laugh2:

No single #24 although a double 29#/single 26# could be finding it's way into the car.

Out of curiosity, what sort of ratio for a middle of the road type motor running on say the Purple mile or the hill climb ? Never ran on tracks as big before so the team is in the dark :shok:

 

Tough call ... 

 

If your running a 26 I'd think you'll need to be close to 4:1 to make it at all drivable. These don't handle 'all that' well and gobs of power may not be your friend.

 

Durability is important in these kinds of events.

 

Don't forget 'slot popping' on the drag strip is ..well... a drag.


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#174 Gator Bob

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Posted 23 August 2015 - 10:52 AM

Carlton?  

What the *** is a Carlton?

Cheapass cigarette?

 

Phil, I was thinking more like this. :dance3:  :clapping:  


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#175 Phil Worthy

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Posted 23 August 2015 - 01:35 PM

Bob, Bob, Bob. Another tribute to the President?

Do I have to be like you and post a link? It is said that "imitation is the sincerest form of flattery."

Here ya go...

https://m.youtube.co...h?v=zS1cLOIxsQ8

#176 proptop

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Posted 23 August 2015 - 10:52 PM

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... :laugh2:

 

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.? :shok: :laugh2: )

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?


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#177 Gator Bob

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Posted 23 August 2015 - 11:39 PM

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. :D

Then this one from BiTD that sounds similar :dance3:  :o


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                            Bob Israelite


#178 SlotStox#53

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Posted 23 August 2015 - 11:56 PM

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 :shok:

Was just an arm that's in the spares box wanting to be used :laugh2:

There are other options including the old fave, 55 turns of 29# :good:
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#179 Gator Bob

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Posted 24 August 2015 - 12:07 AM

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... :laugh2:

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

 

 

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.? :shok: :laugh2: )

 

Q.T. ... :laugh2:

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 :laugh2: 

 


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#180 Gator Bob

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Posted 24 August 2015 - 12:10 AM


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

 

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


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#181 proptop

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Posted 24 August 2015 - 12:45 AM

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

 

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


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#182 Gator Bob

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Posted 24 August 2015 - 11:42 PM

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.


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#183 Phil Worthy

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Posted 24 August 2015 - 11:48 PM

I'm interested.
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#184 macman

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Posted 24 August 2015 - 11:50 PM

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...

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Ben Kernan
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#185 Gator Bob

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Posted 24 August 2015 - 11:55 PM

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

Git-r-done and Please join us.


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#186 Asp

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Posted 26 August 2015 - 07:04 AM

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


Luciano Luppi

#187 don.siegel

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Posted 26 August 2015 - 07:29 AM

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 



#188 Asp

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Posted 26 August 2015 - 07:48 AM

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


Luciano Luppi

#189 Gator Bob

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Posted 26 August 2015 - 09:50 AM

Welcome Luciano ! :clapping: 

 

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

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


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                            Bob Israelite


#190 don.siegel

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Posted 26 August 2015 - 10:16 AM

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

 

Don 



#191 Gator Bob

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Posted 26 August 2015 - 12:11 PM

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

 

Can I just call it a Super Aero ? :good:


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#192 Asp

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Posted 26 August 2015 - 01:50 PM

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


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Luciano Luppi

#193 Gator Bob

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Posted 27 August 2015 - 12:28 AM

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

 

What a cool place! :shok:  :good:  :good:

 

220' American Sovereign
post-4-0-26342300-1293650342.jpg

155' Gerding G7 King
post-4-0-24362200-1293650328.jpg

 

135' American Aristocrat

post-4-0-21958000-1411913099.jpg

90' Ogilvie Figure Eight
post-4-0-44424300-1293650335.jpg


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                            Bob Israelite


#194 Phil Worthy

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Posted 27 August 2015 - 04:15 AM

In keeping with the theme of the race, the tracks that would have been around when Dynamic was dynamic. Post #58:

Vintage tracks for vintage cars:
AMR's Aristocrat, Sovereign, and Royal 95:attachicon.gifimage.jpg


Here's the Royal 95:

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#195 proptop

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Posted 27 August 2015 - 09:40 AM

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...??? :crazy: :shok: :laugh2:

 

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...


Tom Hemmes
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#196 Gator Bob

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Posted 27 August 2015 - 10:05 AM

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.


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                            Bob Israelite


#197 don.siegel

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Posted 27 August 2015 - 10:29 AM

Good decision Bob, all for it. 

 

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

 

Don 


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#198 Gator Bob

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Posted 27 August 2015 - 10:35 AM

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.


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                            Bob Israelite


#199 proptop

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Posted 27 August 2015 - 02:03 PM

Well, I guess I got my answer... :laugh2:

 

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 :D  (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)


Tom Hemmes
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#200 Phil Worthy

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Posted 30 August 2015 - 06:59 PM

Motor:
- Any motor configuration up to 1970 that is designed to fit the Dynamic motor carrier part number used.
- Open armature rule. (Any wind, diameter, stack length, or number of poles)

I'm a bit thick, so I need some clarification here. The way I have been interpreting the motor rule so far is that the period motor you choose has to have had a Dynamic motor mount made for its type, and the motor has to be stock except for the arm. Is that right?





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