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Offenhauser Engine for 3D print


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Posted (edited)

I was asked by some members here to do an Offenhauser engine that could be 3D printed. 

I did this up in Fusion and it is now available from Texas 3D Customs. 

This was scaled off of original drawings and is as accurate as can be reasonably done at this scale. 

Manifolds are separate parts and can be put on either side. Pictures showed them on different sides depending on application I guess. 

Here is the first print, shot with a spay paint and craft paint. 

 

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Edited by Oldmopars
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Just printed a batch of these - they’re beautifully done with really nice detail and great scale fidelity:

0EE860D3-2ADA-4690-8F8F-7E56F3EB4A87.thumb.jpeg.73c24b8970f1431ed4c198a38c5507b3.jpeg

GREAT work Scott!!  

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  • 2 weeks later...

I am hijacking this thread, everyone stay calm and we will reach out destination. Okay all joking aside I have been working with Scott with some tricks and suggestions and this is where the OFFY stands now, please ignore the janky picture but it's what I had to deal with at the time.

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Posted (edited)

I'm assuming these are the "big" Offy engines like the 270-252-255...NOT the little 91 c.i. midget engine?

Another question...what gearbox is represented?

Edited by Ace-Garageguy
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On 5/13/2022 at 5:18 PM, Ace-Garageguy said:

I'm assuming these are the "big" Offy engines like the 270-252-255...NOT the little 91 c.i. midget engine?

Another question...what gearbox is represented?

The little 91 ci  engine didn't have a transmission just used an in and out box in almost every instance, but at least one of them had a transmission and competed on a road course against the sporty car types and if I remember correctly it even beat them at their own game. This is the big engine and as used in the Indy cars used a two speed gearbox AND a clutch with first gear being used to get rolling and second gear was a direct one to one drive. 

I'd like one with just the adapter plate as I want to build a track roadster version of a 1:1 car I saw at a car show, it was a very over engineered street roadster and had a small spool quick change behind a C-4 automatic transmission and an open driveshaft. It really impressed me!😳😛

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Posted (edited)

This is the transmission with the offy. Found on the H.A.M.B. It is a Model A Ford Transmission. see this thread: https://www.jalopyjournal.com/forum/threads/offenhauser-racing-transmission.1088178/

It seems this was a comon trans to use behind these engines in the early years. That is why it is the trans modeled to be used with it. While any trans could be adapted, and many were, this seemed the most era correct one to include. Any others would have been latter and not correct for the era. 

Edited by Oldmopars
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16 hours ago, Oldmopars said:

This is the transmission with the offy. Found on the H.A.M.B. It is a Model A Ford Transmission. see this thread: https://www.jalopyjournal.com/forum/threads/offenhauser-racing-transmission.1088178/

It seems this was a comon trans to use behind these engines in the early years. That is why it is the trans modeled to be used with it. While any trans could be adapted, and many were, this seemed the most era correct one to include. Any others would have been latter and not correct for the era. 

Oh snap you just laid down the knowledge but I Do have the Auto transmission from my Flathead that seems to fit very well infact just perfect. Don't ask me what trans I used because I forget. But it's an option. Also sorry for the lack of/late responses but I was paddling a river today.

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10 hours ago, carsntrucks4you said:

Can't find it on cults. Could you please resent the link

It is no longer available on cults. Please see Texas 3D Customs for a high quality print. 

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On 5/13/2022 at 7:18 PM, Ace-Garageguy said:

I'm assuming these are the "big" Offy engines like the 270-252-255...NOT the little 91 c.i. midget engine?

No one specifically answered this question, but yes, it’s the bigger variation. 

I assume (but don’t KNOW) that the block sizes are the same for all three displacements?

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