24 replies to this topic

[gas]

Hi all, I'm scratch building a Competition Asp, need to know what the wheelbase is? For the Manta Ray, what is the size of the front and rear tires and wheels, diameter and width? Thanx.

[Ramcatlarry]

The body determines the WB.

[gas]

The Asp can be up to 5 inches, way too long. I would like to use the original wheelbase. I know the Manta Ray body will determine its wheelbase. Thanx.

[Maximo]

George,

 

I do not know the specifics of the Classic Competition Asp RTR, however measuring the body it appears as 4" up to 4.5". 

 

Hope this helps!

 

maximO

 

[olescratch]

I tried to obtain the best measurement possible, I get 3.7".

[don.siegel]

I've got a wheelbase of 3-11/16" on my Competition Asp. vs/ about 3-13/16" on the regular Asp. 

 

Assuming my Manta Ray has the original wheels (6 spoke, bare aluminum), the rears are 1-1/4" diameter and 3/8" wide on the tread (overall width a bit larger). The fronts are 1 x 1/4", or maybe a touch larger. There were a number of different versions on the Manta, so this may have changed. 

 

Don 

[gas]

Thank you gentlemen, this will be very helpful.

[mike1972chev]

George,I will send you some EXACT measurement tomorrow. I have had a beer or two tonight.

[Martin]

May I add the guide pivot to rear axle has a greater effect on handling than w.b. So I would max that dimension, but still fit guide under the body IMO.

[gas]

Thanx Mike. Martin, I was thinking about an inch longer than the wheelbase, sound good?

[Martin]

7/8" of guide lead is not uncommon for a light open wheel car.

 

Maybe check what has worked before here http://slotblog.net/...assis-drawings/

 

I like the specs of this classic http://slotblog.net/...kras-4-rail-f1/

[Rick Moore]

George,

 

I recently built a rather non-vintage anglewinder chassis for a Competition Asp body (posted over in the SB Scratchbuilding sub-forum in the CMF3 'just for fun' chassis thread) where the wheelbase is 3.875”, rear axle to guide pivot is 5.00”, and resulting guide lead of 1.125”. Admittedly unconventional, but I like the way it came out aesthetically and functionally.

 

Have fun!

 

Rick / CMF3

 

[mike1972chev]

Ok George ,This is what measurements  I got on mine. These are 100% STOCK with ZERO modifications done to any of  them.

 

          ASP              3 7/8" inch wheel base.

 

Copetition ASP       3 11/16" inch wheel base

 

Manta Ray              4" inch wheel base.

 

As for the tire diameter on the Manta Ray , Don Siegel nailed it as far as i am getting. 

[gas]

Rick and Mike thank you for your help. This is going to be interesting!

[Rotorranch]

What are the differences between the Asp and the Competition Asp?

 

Rotor

[don.siegel]

Mainly that the Competition Asp has a 26D and the regular Asp a 16D; it also has color foam tires and I think it's a bit shorter and wider. 

 

Don 

[Bill from NH]

The Asp & Competition Asp also had different colored factory painted bodies. My Competition Asp (1967-68) came with black foam rears. I didn't like its handling, so quickly swapped it for a 26D Chaparral build on a Dynamic mag sidewinder.  I still have this Dynamic chassis.

[Rotorranch]

Anyone know how long the rear axle spacers are supposed to be on an Asp?

 

Rotor

[Rotorranch]

Also, who's making Asp bodies?

 

Rotor

[Rotorranch]

I need a guide flag. Otherwise I think it is all original. Except the rear axle spacers and rear tires.

 

Of course, the painted stripe on the body. It looks like enamel and should be removable.

Rotor

 

 

[Martin]

This one looks like low miles and I believe bone stock.

https://www.ebay.com...dIAAOSw3Dpdy4Ny

Not a bad price at $80 BIN

[don.siegel]

What's the post hole size rotor? 

 

I've got an extra guide with a 3/16" post, but it looks like 1/8"... 

 

Don 

[Rotorranch]

What's the post hole size rotor? 

 

I've got an extra guide with a 3/16" post, but it looks like 1/8"... 

 

Don 

 

 

Definitely 1/8 inch post.

 

Rotor

[Steve Deiters]

Also, who's making Asp bodies?

 

Rotor

Truescale at one time was offering the Competition Asp.  I bought a couple at the time.  I don't think he is shipping bodies at the present time.  I wish he would be offering them again.

 

http://truescaleprod.../index-4-3.html

[pn6]

Anyone know where I can get a pair of Asp front tires?? I'm refurbishing a Competition Asp that has the small treaded tires on it. Im going to go with some o rings for now but would really like some original fronts.