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  1. #1

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    Octura M435 vs. Octura Y535??

    what is the big difference in these two props?? i want to buy a new prop for my budweiser 1/12 and was wondering which one would be the best for the job.. iv herd from others that the M435 is a lifting performance prop..

    thank you

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  2. #2

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    RE: Octura M435 vs. Octura Y535??

    1 has 2 blades the other has 3. Judging by your pics.

    ...No seriously...I've heard the Y535 is a great performer on the Miss Bud. If true...the 3 bladed 35MM might be to much prop to push. I would go with the Y535. Generally, if top speed is what your after (trust me you are, especially with a hydro) then you could with a bigger 2 blade prop vs. 3 blade...which will push your boat farther in 1 revolution than the smaller 3 blade. Hence...it will be faster.

  3. #3

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    RE: Octura M435 vs. Octura Y535??

    Geez, I should of read that. Didn't make much sense at the end.

    I would think that a bigger 2 blade would be better and faster than a smaller 3 blade prop. A 3 blade prop will put more of a load on the engine which is why you would have to go down in size.

  4. #4

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    RE: Octura M435 vs. Octura Y535??

    if you run standard 20% fuel the Y535 is a replacement for the stock prop. I started running 30% and then to %40 and it flew with the y535 but after a few hours i threw out the bushing in the connecting rod.

    I'm now looking to move to a Y536 or Y537/3 Not a fan of the 3 blade but there is no way i can make the jump to a Y547...

    I have on order for another boat a Prather 215 and May... try that.

  5. #5

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    RE: Octura M435 vs. Octura Y535??

    thank you for the info.. ill give the two blade Y535 a try.. and post my results for sure.. also if anyone has any info on moding this boat let me know.. i just want to get more power without spending big bucks.. maybe increase the % of nitro from 20% to 40%??

  6. #6
    Ron Olson's Avatar
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    RE: Octura M435 vs. Octura Y535??

    The Octura "M" series of props are kind of what the letter stands for, Modified. These were X series props with some of the tongue area removed for better performance. Boaters have found out that the extra tongue was actually slowing the boats down!
    There has been an arguement going on with the props guys as to the merits of 3-blade props. When used in a lifting capacity, the 3-blade will hold up the rear of any hydro up better than a 2-blade. The M props are not lifting props.
    The X-435's have been used on the Miss Bud's with good success as they have less of a problem with cavitation.
    IMPBA 17238 S
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  7. #7

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    RE: Octura M435 vs. Octura Y535??

    thanks Ron .. i also was wondering if changing the % of nitro would help or will it just blow the motor sky high? iv been running 20% sidewinder .. is there anything better for more performance?

  8. #8
    Ron Olson's Avatar
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    RE: Octura M435 vs. Octura Y535??

    Sure, you can go higher, it freaks out the car guys! I run 50% in all of my boats from the .12's on up. I don't know what's available on your side of the Great Lakes.
    Work on getting everything set up, from the motor to the prop then mess with fuel.
    IMPBA 17238 S
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  9. #9

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    RE: Octura M435 vs. Octura Y535??

    thanks.. i will for sure.. and ill definatly be looking for some stronger nitro to try now lol..

  10. #10

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    RE: Octura M435 vs. Octura Y535??

    I just recemtly purchased a 1/12 scale bud, and have been tricking it out to the max.........there are all kinds of mods for this boat, and the .15 dynamite marine engine that it comes with. If you're interested in some of my mods.....get back to me, and I will be glad to contact you. Yes.....the y535, is the prop of choice for improving performance from this boat. I intend to try the m435, but I supercharged my dynamite, for extra horsepower. As far as fuel is concerned, I wouldn't run anything over 30%, and Dynamite recommends replacing the rod after every (2) gallons of fuel...just FYI

    Budman

  11. #11

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    RE: Octura M435 vs. Octura Y535??

    hey thanks for the tips.. ya i just was looking at the superchargers at RB Innovations and they are to costly to try but im upfor anything else you have to tell me about moding my bud..

  12. #12
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    RE: Octura M435 vs. Octura Y535??

    For some reason when i first go this boat from my LHS about 3 years ago or whenever the Miss bud first came out, i was one of the first to get one from my LHS, they put me on 10% blue thunder. I have not used the boat that much and have not even ran a whole gallon through it. Once i finish off this can can i go up to 30% or do i have to do 20% then 30% then 40% then 50% and so on. Is it ok to make a jump from 10 to 30? Thanks, Cameron

  13. #13
    Ron Olson's Avatar
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    RE: Octura M435 vs. Octura Y535??

    No, you don't have to slowly step up the fuel percentage. I run the same percentage in my engines from day one and that might be 50% but I'm a little crazy. Just richen the carb when you up the nitro.
    IMPBA 17238 S
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  14. #14
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    RE: Octura M435 vs. Octura Y535??

    Cool, I only have a little left in this can so i guess i will hop up to 50%, or w/e is availiable that is up their at my LHS, cuz i like living on the edge as it seems you do. What kind do you use? Does car nitro work? Thanks, Cameron

  15. #15
    Ron Olson's Avatar
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    RE: Octura M435 vs. Octura Y535??

    Nope, I use fuel made for boats. I look for it to have an oil content of 18-20%. I use this even in my .12 powered boats that are using car/truck engines.
    I love saying at the LHS's that I run 50% nitro and can say it with a straight face in my .12's, they drop their jaws!
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  16. #16
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    RE: Octura M435 vs. Octura Y535??

    What type of fuel are you using and do i need to change the plugs? The only 50% i have found is on towerhobbies and its O'Donnell. Is this what you use http://www2.towerhobbies.com/cgi-bin...?&I=LXKRW4&P=0 ? Thanks, Cameron

  17. #17
    Ron Olson's Avatar
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    RE: Octura M435 vs. Octura Y535??

    I'm running McCoy MC-9's in my boats.
    I've used O'Donnell and hated it. I bought 2 gallons of it and afterwards found a lot of a creosote build-up in my headers and tuned pipes. Some people love it and there is no disputing that it has been used in a lot of record setting boats but this is my findings on it.
    I've used Byron's, Red Max, Ritch's Brew and Wildcat all with good results.
    IMPBA 17238 S
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  18. #18
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    RE: Octura M435 vs. Octura Y535??

    DONT BE AFRAID TO USE 50% NITRO OR HIGHER , JUST MAKE SURE ITS HIGH QUALITY FUEL WITH AT LEAST 18% oil ! , just make sure you can always see a slight smoke trail when running the boat , if not, richen it up quick ! i use 60% o'donnels and im having excellent results so far after 25-30 tanks thru it , proud to say, MY MISS VEGAS ROCKS !!!
    Club Saito Member #1
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