i'd try a higher pitch prop first mate,see if you can get hold of a 18p merc chopper.
where abouts you at in aus ? i have a mate up here that can get new 18p choppers for about $800.you may need to rebush it to suit the yam though.
i used to run a 25hp merc on a 12ft hunter flat bottom (i think they were only rated for 6hp)it used to crack .we flipped it one night at windermere dam.
theres nothing better than an over powered tinny.
got a shot of it?
Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052
thanks for the replys
its away geting worked on for the rest of this week so
ill get some snaps when i get it back
the rules are the cav plate has to be level or below the
planing suface of the hull also we have to run through the hub exhausts
so no chopper props ect..
im running a 15" ballistic but thinking i should maybe step up
to a 16 or 17... anyone got a link where i can find one...
any other suggestions on how to make this thing
go harder would be muchly appreciated
What about inside the engine? rule restrictions?
IF NOT,: "open" your reed valves stops 1 (one) millimeter all of them, (use plastic reeds)
you must also see how your top pistons* are, so you can lean out a bit, clean all the exhaust ( the best you can), does that motor have megaphone? clean it well, use synthetic oil, shave the cylinder head (if permitted) just .015"
get your propeller thinned...as far as it doesnt break a paddle under "big" power.
Go down in weight, (you of course..!!)
there is a minimum weight? boat & driver??
Hope you can go faster...!
if not, take 5, or 6 shots of tequila..and go dancing...
*black & oily= rich
clear tan&little dry=optimum
very clear tan&dry=broken motor (the entire tequila bottle)
Last edited by vrunner79; 03-28-2009 at 09:16 PM. Reason: UPLOAD SOME PICTURES...GO..!
yeh ill have to get on to it and talk to the guy about
what he has exactly done already
cheers for the advise
We are all hoping that you wakeboard a whole lot better than you drive a race boat!
That may give some of us some chance at least. By the way you can't tumble one of things over the wake by the way...in case you weren't sure!
Your secrets out now though mate and the walls have eyes and ears!
At least you are being open about it though mate.
Guessing you will be having a run ANZAC weekend with your new toy?
Sounds like you are on the right track!
Good luck with it and hope it goes well.
ps: Congrats on your Wakeboard Nationals efforts too!!
hey man cheers
yeh get the new one back for the
2nd time wensday so be going for a run then
whats the go anzac day...
heading to mildura for a race at easter..
well have to organise to go for a run sometime
ill give ya a ring this week wanna ask ya a couple of things
i have a mini merc chopper, needs to be re-hubbed though to fit a 30hp.
i will sell it for $600AUS, if i dont sell it ill just keep it, they dont loose value haha
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