1800cc or 109ci engine suggestions??

[jim]

Hi guys, been floating around the forum for a while, loads of great info!!
i am hoping you can offer some suggestions for a suitable outboard to suit my new to me 15 foot hull. The rules here in australia allow for upto 1800ci or around 109ci maximum for this size hull.
Its a pad vee bottom and is very light (i can lift the transom end from the trailer quite easily), i will be doing mostly long river races but also some club days circuit racing, mods to engine are basically free, just needs to run a shifting case as i understand it.
I know an inline six is a good option, but i would like to know if there are any other good options?
i've only played with v6 mercs but keen to try new stuff!
Cheers, Jim

[sabine river killer]

how big is a 115 - 130 yamaha

[Powerabout]

the original OMC 140 at 1800cc has the most potential HP at that capacity class
what mods does the class allow

[jim]

i thought mods were open but i just re-read the rule book and it seems i was confused by the way it is written, ithink the motor needs to be stock for the mono class and is open to mods for the open hull class.

[Powerabout]

You might still have rules in the mod to keep it sensible like no sleeving under original and only stock crank stroke etc
Maybe even stock looking powerhead?

[Lars Strom]

Martin Löfström the big winner in Oskarshamn, Sweden


The Evinrude 115 H.O. was running great..a few gear case problems but that is fixed now.
Congratulations to the win and a beautiful race boat.

Click on the link below for more info and check this video.

http://svera.se/blogg/martin-lofstro...-i-oskarshamn/