its seams i have run into a couple of issues with the cat.
one is i cut my flexi to short so i cant do much postive trim of the prop lols a newbie mistake and easly fixed.
the second issue is i can only get 80% throttle with my current set up, i have orered a new 644 throttle leaver.
the third issue is, the extra length of the quickdraws iso block and carb spacer puts the carb realy close to the side of the hull and i only have around 0.4 inch or 10mm you can knock off a couple of mm with the cowel on.
i have spoken to quickdraw ( they have the best custoemr serivice i have ever come across ) and it seams 0.5 inch would be the bare minium and artlest 0.75 inch 20 mm would be about the lest you would want togo.
the cat runs fine with a small prop, but once going to a bigger prop the problem seams to be it jsut will nto run and its starving of air/fuel no matter what the carb needles are at.
running with out the hatch seams to imporve this, but im not keen to do this for longer then a few secons, due to water spray, flips an so on, im confindent the engine is fine, and after a few long chats with Mitych at quick draw, i ahve gone over and checked every thing over on the motor and check for hydro locvk, carb issues and so and so on.
ive gone out a couple of times and again today and ive gone realy ritch on the carb, with the small prop 6617/3-400-ll from prop works west shes fine, but wack on the 6717-430c and shes just bogs finds it hard to come on the pipe an does not like to run.
ive tryed difrent strut hieghts, carb settings from 2 out to 7/8 turns out and she just doesn't wat to run, it seams the carb gap from the side of the hull to the carb is just not enough for it the breath.
i knew this would pop up but i want hopping i could get away with it, i was thinking about cutting up the side of the hull to let the carb get air venting from the side of the hull, but soem of the carb will be blcoked still, im not to keen to cut the cowel and hull up as it will jsut suck in water sray and run a hight risk of hydro locking in flips and stuffs.
i have pulled the engine own today, after another flip, the engine to me looks sweet, ill admit my exprernice is wirh air cooled rc engines, but i can not fault any of quickdraws work.
it looks like i can not over come this problem with the seaducer hull unless drasticly cut up the hull and cowel or i put a zenoah or a rcmk evo into the cat, but i want to keep running the quickdraw motr as sofar it seams strong and very impresive and im more the happy witht he motor and quickdraws custoemr service.
they could blow me off cause im in australia, but no i get fast email replies with long detailed emails, not treating like a idot but clearly explaining things to me, i have learnt alot just by listen to what Mitch has to say about these motors and running them.
ive got another trick up sleave, but after talkignt o my wife, it looks like a new build will be come up soon.
i new this would be an issue and it you afec air speedn and air velocity enteing the carb, and it mgiht of been silly of me trying to spedn 25 mins of run time to see if i can work with it, but i had to try.
i have spoken to a small engine machanic who i trust and hes baslic said no goo i need to mod the hull and hatch to have more breathong space
any way here are some pcitures of what im talking about, the pictures make it look like there is more room then there actualy is, im only a small fellow its hard to get my finger int here to chok the engine to start it
this is what im talking about
imagion with the cowel on
im thinck on shelfing the seaduce cat, or selling the hull and starting a new build, unless i can come up with any ideas that don't increase the risk of sucking in water spray or run i higher risk of hysro locking and at this stage im not buying another motor ills tick to the qd25ht.
its a shame as if the first run was any thing to go by this propject was showing loads of promise.
