260hp I/o expectations

[step up here]

Pretty tough to beat a 200hp or more outboard. Especially a new four stroke,you need a worked 350 with around 500hp see back post under Ubhistory He built one put in a V-20 went around sixty mph I believe.

[1224bret]

Yeah the timing has me baffled. My bet would be I'm giving up a few ponies just by the timing being off. I have some timing tape and have thought about making sure it was at tdc compression and making my own mark to go by. I don't know how the balancer would be that far off either though.... I've tried two timing lights and got the same result. I may have a little time tomorrow to look at it. I'm sure I'm looking at the right plug wire it's the front left wire if your standing behind the engine correct? Would a better prop turned at the same rpm give different results? I have quite a bit of checking on stuff left but I think I'm on the down hill ride now. I know the outboards have a better power to weight ratio but I would have thought the 260 would have cranked out a little more...

[smokeonthewater]

yep left (port) front if it's a chevy

4200 is a bit low too but could all be in the motor..... 4400 would be better

Get that fresh gas in first and then get the timing right


The balancer can be off just from being old and moving on the rubber... It can be off from not having a key in it... It can be off because the timing indicator on the timing chain cover can be in the wrong place IE mismatched parts.