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tpenfield
Senior Member
·
From Cape Cod, MA - USA
Joined
Dec 10, 2016
Last seen
Yesterday at 4:35 PM
Messages
600
Reaction score
249
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43
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About
tpenfield
replied to the thread
Small speed boat mold construction
.
This thread has got me thinking that I need to make a new dinghy, because after 15 years or so the one I made has seen better days. It...
Yesterday at 3:43 PM
tpenfield
replied to the thread
Small speed boat mold construction
.
There has been little response from the OP regarding the input and comments so far. I did enjoy reading @ondarvr 's background, as I...
Yesterday at 5:42 AM
tpenfield
replied to the thread
Small speed boat mold construction
.
Perhaps @Admin can combine the 2 threads, since they are the same topic. Hopefully, @Chopperr007 will reply and speak for himself now...
Thursday at 4:21 AM
tpenfield
replied to the thread
Small speed boat mold construction
.
I built an 8' boat . . . it is basically a pram dinghy . . . fiberglass over foam core. I didn't know enough at the time, so it...
Wednesday at 6:24 AM
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
I was pretty much on a schedule crunch getting the boat ready for the season, so I did not put too much effort into measuring the engine...
Aug 8, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
FWIW - I am seeing more and more outboard brackets done as hull extensions. It might be a trend :p
Aug 4, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
Thanks for the picture edit . . . :cool: It looks like I can accommodate a 2-bolt-hole upward adjustment, which would be 1.5". The...
Aug 3, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
Quick Update . . . With a good amount of up trim, I got 50 mph @5300 RPM. So, that hints at the engine height being too low. I hooked...
Aug 3, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
Here is a graph that might be interesting . . . I looked up the BoatTest data on the 'standard' CY338 Outboard version that came out in...
Jul 29, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
A couple more pics of the wiring/rigging in the (former) engine bay . . . I still need to install some level flooring and arrange some...
Jul 29, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
Thanks for your kind words, I have enjoyed sharing this project and I hope it will benefit others doing similar projects. Here are a...
Jul 28, 2026
tpenfield
reacted to
comfisherman's post
in the thread
Twin I/O to Twin Outboard Conversion Project
with
Like
.
Looks good, got completed, appears to work good... heck of a project and thread. Thanks for keeping us in the loop, it has been both...
Jul 28, 2026
tpenfield
reacted to
bajansailor's post
in the thread
Cat project I/O to twin OB
with
Like
.
Welcome back to the Forum Restomod! Have a look at Ted Penfield's epic (30 pages!) thread about the amazing conversion he did on his...
Jul 26, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
Not sure of range because I have not gotten mpg figures yet. The prior configuration got 1.2 mpg, so that would mean about 60 miles out...
Jul 25, 2026
tpenfield
replied to the thread
Twin I/O to Twin Outboard Conversion Project
.
I was doing the test runs with 50 gallons of fuel. I can go off shore and keep going until I run out of fuel.
Jul 25, 2026
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