vtec'n cb7 f22

I bought a CHEAP ski boat with a bad 130 hp 4 cylinder engine , and well me being the Honda nut that I am I figured it would be awesome to have a Vtec engine in a ski boat !!! What do you guys think ?

bigsnorlax

Well a 4 cylinder is a 4 cylinder for the most part...

I dont know much about ski boats but your really going to have to figure out how to use it to drive a propeller because im sure the transmissions are wildly different and WONT bolt up to the honda ha.

Katastrophic

you can try it, i remember alot of power boats used volvo engines not long ago and they got that to work....drop it in, give it a try and let us know what happens.

DCFIVER

Weak. Put a V6 in it!!!
http://marine.honda.com/Products/modeldetail/BF225

hondamark35

i know a lot of inboard motors for boats are converted from automotive applications. what i would do if i were you is try to find out what all is done for the conversion by the manufacturers so that you can do the same for yours.

try this link for some basics that may apply
and this link for a "how to"

vtec'n cb7 f22

Thanks fellas for all the replies !!! I have given this project a lot of thought , I started by figuring out how an inboard engine hooks up to the boat ''transmission''. It's got a splined shaft that slides into a ''boat engine coupler'' attached to the flywheel . Basically it's set up just like a standard , input shaft going into the center splined part of the clutch. I wanted to go all out on this and go fuel injected !! Converting it to obd 1 and running it in closed loop like other EFI boats do . Reason being , water runs through the exhaust to keep the temperature down but it creates steam and if you install an O2 sensor it will give a false reading . As far as cooling the engine , luckily this boat came with a closed cooling system (heat exchanger) the engine has antifreeze going through it and half the heat exchanger . Lake water is pulled up through the foot part of the outdrive ( by the prop) and pumped through the other side of the heat exchanger therefore cooling the engine coolant . Seriously guys, thanks for the replies and not just Flaming

hfsullivan

GooD idea. Let me know how it turns out.

spAdam

iTrader: (1)

Gonna need a left handed prop....