bullboy8

This is a combination of a few questions. I am looking into getting an engine for a boat I will build or buy. 46-50" or so, is the Zenoah the best engine for gassy boat? Or should I ask does it have the best reputation? Where does it stand to Sikk and the other big name engines? And what does the PUM stand for behind the engine size (like 260PUM)? Oh, and lastly, what size should I go with 26cc or higher? Wooo that’s a lot of questions Thanks everyone!! –Ed

MistralK

I think that Zenoah it's the most well-known in the 23/27cc gas class..
It's the most popular so you can find what ever you want for this engine..and the selling price it's cheap,spare also..

munro1656

OK first lets not start the old 'what engine is best debate'[]
the zenoah would be my first choice only because of the value for money and how user friendly they are, They also have a lot of room for mods later if you need to in the size boat your looking at running.
PUM to keep it simple means its marinised (been set up for cooling water to run through it)

martno1fan

Hi mate zenoah is def the best motor for the money,260 pum is the only one worth getting in my opinion.Sikk i wouldnt get one because of the issues with the 2 bolt jugs breaking etc.QD motors are suposed to be reall good but then they cost a packet so for me id go with a modded zenoah every time.As for pum ive never really thought about it but i asume the m is for marine?.So are you moving on up to the next level allready mate ,id def go zenoah theyre reliable and a good quality motor in my opinion.
Mart

munro1656

OH and the last thing the size I would recommend for your set up would be the 260PUM any more than that you'll be lucky to keep the boat stable

bullboy8

Yes I agree with munro1656, i don't want to open a can of worms, I just simply want see what them norm is. I'm kinda new to the gas side of this hobby so I'm just trying to broaden my knowledge curve -Ed

bullboy8

Well Mart I am already thinking about my next build i sure do like the mono's so it will prob be a mono, but i really want to build it myself again. But your right i want a "real" power house in the next one HEHEHE! Oh and what make a Zenoah considered to be a modded one? What I should ask what is the differences between a stock and modded? -Ed

munro1656

Short answer SPEED AND POWER!!!
modded motor has been maybe ported, flowed,raised compression, bigger carb,better pipe ect ect ect

martno1fan

Diif between a stocker and a full mod is about 3 hp and more speed,for specs it all depends whos done the modding and im no mechanic so ill leave that for them to say.What boat are you gonna build? no one has yet built Dougs improved version of your hull at least not on this forum to my knowledge,its narrower to reduce its flighty tendencies,he also has an offshore one which a cpl of guys have built including my mate Steve Marshall and mr Freeze.
Mart

martno1fan

Seems we keep answering the same questions

munro1656

I think I might just sit in the back ground and read!!

bullboy8

Real quick cuz I don't want to get this thread off topic... Mart, I don't know were my plans went for my 48" mono build. I want to get them again just to have. Does doug have it? I will PM Doug to see what he has for plans.
Were have you all found is the best place to buy a zenoah for a good low price? -Ed

bullboy8

Guys, the more answers the better for me Answer away by all means!!!

martno1fan

Haha no way mate its allways good to have others opinions even if sometimes we dont allways agree ,to me that can be fun also but then im argumentative so i hear .
Mart

munro1656

I heard your just missunderstood

martno1fan

I couldnt tell you if Doug has them id say probably but then he never had the tiled ones so you might ask Bentley or Steve Marshall ?.For zenoah motors at good prices are we talking stock or modded,if stock then Daves motors is reasonable as are oniel bros and whhobies.If you want modded theres loads out there,i like the ss mod but take your pic theres quite a few to choose from.
Mart

martno1fan

yea im thinking about changing that to the other way round

thevirginian

bullboy;
Check out O'neillbrothers.com. They have some awesome combo deals on Zens with pipes. I bought my stocker with pipe , header and flange for $299.00 and free shipping. Can't beat that. I also have a Zen fully modded by CC Racing. This motor is "da bomb". Go with Zen and you will never regret it.

rcboateric

the greatest deal for a new stock 260 is in fleabay, if you're running a good tuned pipe system, the power would jump up to 3.8 HP@15000rpm.

Ron Olson

My Feedback: (1)

As an owner of 2 Sikk 27's, I'm wondering if the grass is greener on the other side of the fence. They can't take the modding that a Zen can and mine do have some other issues, mostly with their pull-starters.
Out of the box stock they're faster than a stock Zen.
The only reasons why I owned Sikk's is because the first one I got a good deal on and the second one came with the boat.

w3bby

I have the plans for both boats as a tiled pdf, pm me an e-mail addy and I will get the to you next week.

Joe Petro

My Feedback: (1)

For a good price on the 260, we buy from [link=http://www.gasboatracing.com]Gas Boat Racing[/link].
They sell the new style Zenoah 260PUM2 with the 257 carb for $220 shipped.

Joe

zulbfa

Since all talking about engine,how about this engine Rx254 or R254 from rcmk,any info....cannot get much info from rcmk webside...

doomracing

i agree that a zen is the best bang for the buck, but how about this can of worms. who is the best person/shop to mod the motor? a modded zen is only as good as the guy doing the work. i've herd mixed reviews about a hanson mods.

MKMotorsport

Along the same lines as the previous post - I wonder how many modded engines are actually hand worked, vs. being chucked into a CNC machine- does anyone know for sure which shops use which method? I'd be curious to know how this relates to cost differences in the finished product....