Formula 233 Registry

The premier site for owners of the famous 233.

Designed for owners and fans of the one of the world's original offshore powerboats, Don Aronow's famous 233.



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Latest Activity

Roy Waldheger is now a member of Formula 233 Registry
B. Isbell posted a discussion

Mercruiser TR vs TRS

I have a 74 233 w 302, merctrans, TR outdrive.  My question is, would the TR lower be original to the boat or would it have had a TRS lower?  Thanks See More
Jun 30
Dalby Nicolas shared a profile on Facebook
May 18
Tim Rust and Dalby Nicolas are now friends
May 11

Devoted to the famous 233

This registry is dedicated to preserving the heritage of Don Aronow's famous Formula 233. A place to network with other 233 owners, discuss technical issues, get and give advice, exchange knowledge and compile a database of the remaining 233's. If you've ended up here you've got some connection to a 233. Special thanks to HORBA for providing images. Please visit the Historic Offshore Race Boat Association , an organization dedicated to educating the public about the history of offshore racing. Welcome and thanks for visiting.


Mercruiser TR vs TRS

Started by B. Isbell in General Discussion Jun 30.

Seeking 1960’s 233 sportsman 8 Replies

Started by Bowline Will in Wanted/For Sale. Last reply by William MANNING May 11.

233 Outboard Conversion 4 Replies

Started by Mosby West in General Discussion. Last reply by Mosby West Feb 19.


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