NEED ADVICE!!(outboard to inboard 1.5 car engine )

[Sceptre]

I have a 16ft chrysler trihull carbonfiber boat with 85hp outboard that can carry upto 5 people I work in a mechanical shop so i was thinking of mounting a 1.5 honda civic engine onboard and runing a streight pipe or through gear boxes any sugestions or advice ?

[marshmat]

1) I seriously doubt that your 16-foot trihull is carbon fibre.

2) What's wrong with the 85hp outboard that would make you want to replace it?

3) Gull-wing trihulls aren't well suited to inboards, but if you want to mess around, nobody will stop you. STFW or browse the threads in "DIY marinization" on this forum for tips on what you should and should not do.

[gonzo]

Chrysler boats where rather heavy chopper gun built boats.

[Sceptre]

Originally Posted by marshmat

1) I seriously doubt that your 16-foot trihull is carbon fibre.

2) What's wrong with the 85hp outboard that would make you want to replace it?

3) Gull-wing trihulls aren't well suited to inboards, but if you want to mess around, nobody will stop you. STFW or browse the threads in "DIY marinization" on this forum for tips on what you should and should not do.

well its old and im afraid it might go and i bought an engine before and it broke too so Im just thinking of mounting a small engine in it and it is carbon fiber or the next thing to it because I can clearly see on the bottom where the paint is worn off

[tunnels]

Why would you want to think about putting a inboard in to replace a outboard . You will add a lot of extra weight and gain very little . Junk the out board you have and get something a little more modern and with more hp
go find a 115 to 135 Vee 4 omc , yamaha or even a inline 4 merc .

[CDK]

Pro:
-You keep yourself busy for a long long time.
-The boat is old, so ruining it doesn't make you bankrupt.

Contra:
-No marinizing parts available for this engine.
-The boat is much too short for an inboard engine, even for a stern drive it is marginal.
-There is just a paper thin hull, nothing solid to mount an engine on.

[Jango]

Listen to the previously given advice. I am very much an "Inboard Person", but your boat is not a good candidate. Find yourself a decent Outboard and have some fun.

[baboonslayer]

Outboard motors save time and money* (*not always money, always time though). Just buy a used outboard that is for sale locally off Craigslist or Ebay instead of trying to take a Honda Civic car motor and convert it to a marine engine, which is a waste of time unless you have the proper tools.

I agree with CDK, Jango, Tunnel, and Marshmatt.