Prop selection for Hydrostream vector????

[hydrostream79]

What would be a good speed prop for my Vector? I am running a 150 Yamaha one inch below the pad and I am looking for a speed prop. Can anyone point me in the right direction? I have been told that the 24 big-eared chopper is the way to go. Is this a good selection?

Thanks for the help

[Dukeofchippewa]

The best prop for my Streams was a cleaver.

[Rusrog]

are the way to go... That boat needs no more bow lift and these will accomplish that and drive great to boot....

Russ Rogers

[WATERWINGS]

All I know is that when I got my 'Stream, it had a 28 cleaver, and I hated it, if I still had it , I would like to try it again, (now that I know the boat better).

I got my best speed out of a 28 inline chopper, (94.1 GPS), I have run everything up to 32 pitch cleavers and 30 pitch choppers, (all @ 6800 to 7000 RPM's), still my best speed came from the 28 chopper.

My best all around prop, (yea, I know........."thats the wrong prop for that boat"),but anyway, the best all around prop is a 26 Trophy 4 blade....(88.3 GPS), it handles the best, takes off the best, turns the best, and has better bite and acceleration than all the others too.

[rock]

I just put an old XR2 on my Vector. Motor is bone stock other than NO oil injection and 1.87 gears. Ran a 22" inline chopper and it ran right at 70-72 mph. When I had big horsepower on this hull I also used an inline chopper but this one was a 28" and ran the boat low to middle nineties.
Rock

[BUSHWACKER]

How many you also run a jack plate or an offset? I'm putten together a 79 Vector w/ a 1996 200 MARINER V6. Thanks

[ProComp]

hydrostream79, how much set back ya got?

[hydrostream79]

I got 6 in. setback.

[WATERWINGS]

I have run setback from none, to 4" to 6" to 8"

No setback was 5 MPH slower than 6", and 8" was 6 MPH faster than 6"

(keep in mind that these tests were run several years apart, with different props, and no GPS when I ran without any jackplate)(but each speed was compared to the gain/loss with that particular prop/setback)

[Boz]

What's the deal w/ engine height? I'm mounted at it's highest setting directly to the transom but is probably three inches below the pad! W/ a 29 srx, it's down right dangerous. W/ a 24 Mazco, same thing but not as sluggish. It won't release the bow from the water and rides real wet. It also feels like someone is moving from one side of the boat to the other at speeds near 30 mph w/ the 24 Mazco.

It has almost injured three seperate drivers this way one whom has drievn a Vector for over 20 years. He couldn't believe it. Hook, blow out, etc.

I'm thinking 4" set back only because my Yamaha is heavy. The way it's set up now and the way it drives, I will not take it off the trailer; no point. It's a complete gong show.


Any help would be greatly appreciated,

Boz

[Rickracer]

I wouldn't be too concerned with even 6" of setback, unless your boat is pretty light, and/or the motor is very heavy. If you're concerned about too much setback, try a Bob's MJ-5 jackplate, they are convertible from 2.5" to 5.5" of setback, depending on how they are bolted together. We do the Bob's MJ-5 for $189 + shipping (S&F price). Let us know if we can help. :cool:

[rock]

You need to raise the motor at least 1 1/2". Mine is mounted to the transom and at 75 is a dream to drive. Little loose but lots of fun. I think the Vector was designed to have no more than an inline and with these V6 engines that we all run it makes it tuff for the tail of the boat to get up on top. That heavy Yamaha makes it a little worse. I would also check the bottom of the boat and the transom if it won't fly. I am currently somewhat underpowered (stock XR2) and mine still runs real dry.
Rock

[skidoo29]

boz
rock is right, raise it about an 1 1/2.
I don't think 6 in of setback will hurt.
just curious do you have solid mounts on that thing, if not you'll never get it too run, the wieght of that motor shaking around will be impossible to drive

warren

[gts1]

Here is the pic of Boz;s gearcase in comparison to the pad .

Geoff

[1BadAction]

2.5" setback with that heavy motor... raise it even with the pad... and run it with a 26 chopper. the motor is way deep- its going to be a nightmare at that setting.

[skidoo29]

Yeah he sent me that pick a couple weeks ago, too low
try for 1 to 1 1/2 below the pad

geoff does he have solid mounts?

warren

[ProComp]

No solid mounts in the Yammy. Wasn't a big deal with the HST but with the vector is could be a big issue too.

Anyone got some set back plates or a skinny jack plate for sale for BOZ?

[skidoo29]

hey brad
thats a huge issue and cold be a major cause of it hooking and blowing out so quick.
wasn't as big a deal on the hst cause it is such a bigger and more stable boat, but it wouldn't surprise me if that was a contributing factor to the demise of the hst

back to the original question
HYDROSTREAM 79
most people I have talked to and expereience with my brothers vector, the chopper will work good, an srx will work good too and most don't like cleavers

just my experince

warren

[Boz]

Motor hasn't any solid mounts but the demise of my HST had nothing to do with solid mounts or lack thereof. It was purely driver error. Didn't run solid mounts on it for 12 years. Warren, your e-mail too me was very comprehensive. Thanks for all that info.

I like the sounds of the 2.5" set back. Boat is light and motor is heavy. 26 chopper sounds good too. So does a pontoon right about now..........

[hydroholic]

I agree with 1 bad action, setback of 6" is fine,but your motor is to low.I have an 86 vector with a 2.4 200 with minor mods ( performance tuner, velocity stacks ,rejeted carbs ,relieved exhaust, solid mounts). I am running a 6" jack plate and have the center of prop shaft pointed at drain plug when motor is setting level in relation to bottom of pad.I have ran it at all different heighths ( including different heighths bolted straight to transom) and that seems to be the sweet spot for mine. Iam currently running a 26 merc small ear chop.Comes out of the hole hard and levels out and flies pretty straight when trimmed out . Requires a little defensive driving against chine walk but that comes with experience the more you drive it and learn. Best speed with the 26 chop (gps) is 83.4mph. I am going to try a small ear 28 chop and see what difference that makes.I have ran a 26 merc cleaver and it doesn't handle as well. Comes out of the hole slower and gets pretty flighty at less trim heighth than the chop.Tried 26 big ear and 27 srx and the extra weight of these kills the low end and slows the top end quite a bit.The small ears seem to work best on mine. Going to raise my compression from 125 to about 140-145 and a few other mods and see if I can't get it on up in the high 80's . Been told that with my setup and the right mods I could possibly see 90, but I want hold my breath.I know that at the speed it runs now it is fun to drive and if you keep your mind on driving and don't get stupid ( over trim it ,blow it out)it's a fairly safe ride. I had a 2litre 150 on before the 2.4 200 and with a 24 small ear , my best was 76 mph, but a little slow coming out of the hole. Raise your motor and try maybe a 24 or 26 small ear with that 150 and you may be surprised. At any ratehope this helps out some, have fun and be safe trying!

[freddyspens]

thanks everyone for the good info here.. i have a question. i have a ventura which is 1ft shorter then the vector.. well i put a jackplate on it so i could jack the motor up and a few people told me there is way too much setback..any thoughts?? the plate puts the motor 5 or 5-1/2in back from the transom. i know the pad stops a few inches before the transom and im not sure bout the vector.. i have gotten 70gps with a 22pitch(not sure or 24) big ear chopper and its a little flighty up there.. i run by myself with almost zero trim.. the motor is a 175hp with exhaust ports matched flowed and cleaned up a bit, drilled on the bottom of the mid above cav plate which turned the holeshot into an incredible launch and i advanced the timing after disconnecting the idle stabilizer box.. i have the prop about a 1/2 in above the pad which sems better then when i had it level with it.. this thing still jumps on plane with that same chopper with 4- 200lb guys in the boat!!! i have a 29chopper on the way right now and i cant wait to try it out.. supposed to be low to mid 80's with it.. my buddy used the boat for a few hrs and got to try a 28(i believe)prop on it and said he got 80something so i am excited to see what it has in it with this 28 and a 30 i am getting..thanks for any input you all can give.... -sean

[1BadAction]

its important to have that motor as close as possible. the 5-1/2" setback is probably contributing to it being flighty on top. go with a 2.5" bobs setback at the most. also, an unworked chopper gives more bowlift than needed with these hulls, imo.

[freddyspens]

hey1bad, thanks.. yeah, i cant get a bobs right now well, unless i find a used one cheap, so i think what i have is what i have. i was going to make one but i havent been to the couple of places that may have aluminum angle stock.. you have any 1/4in 2in angle?? i was trying to think if i could make this cmc hydrualic(its manual right now till i rebuild the motor or make some lines to fit it for an onboard pump) to be less setback also...with 2in the boat its runs sweet-- or i actually put a 6gal on the side of the passenger seat and that worked good too.. the 26cleaver i tried was a few mph slower but handled great with just my self in the boat, not enough lift with 2 it felt... the choppers i have used have all been worked.. all have some cup in em too.. the holeshot is amazing-- totally blew me away but once i get over like 65mph the bow starts wanting to come up high and then it kinda rolls off to the side a hair.. im still learning to drive it on the pad but i think i have a pretty good feel for it except for when it gets real squirrly..i guess im just gonna have to deal with it or even keep the 6gal tank by the left seat for now.. although i would love to find a prop that had different properties that would be kinda middle of the road from a cleaver/chopper-im not sure how et's, hoss, and others are.. thanks again-- sean

oh, and when i 1st got the boat i didnt think there but a few gal in the bow tank someone had installed(18gal tank,but i was using 6gal portables),well i took it out to clean it out before using cause the boat was stored for a long time and it had about 15 gal in it!!!! whay a difference after i took it out!! i have been thinking about putting it back in for long trips and i was thinking that maybe i can put it to the left about 6 or 8in from where it was to keep the boat level with myself in it.. ill only keep 2 or 3gal reserve in it for the most part anyways... i know for top performance the tank never should have been put up front but with the fill cut in the bow of the boat which suks, i guess i might as wlel use it occasionally... any thoughts?? -- thanks again-- sean

[1BadAction]

big bow tank is a mistake.. if you set the boat up to run with that weight up there, then run it out, the bow is going to be very flighty. remember, 18 gallons of gas is 108lbs :eek: ... I am putting my battery in front, but only because it is a constant and I need some weight in that area.

[freddyspens]

yeah bad, thats what i just said-- its bad that they put it up there and if the fill wasnt cut into the deck of the boat, i wouldnt be putting it back...BUT, again- the only time i am going to use it is for long cruises and otherwise just keep like 3gal or whatever seems best in it and that will also get me home in a pinch...when its full, im not racing or running top speed ill be going for a long ride to the dam(25miles away).. again,since you mentioned a constant, top speed is going to be maybe 3gal ,or whatever seems to work well, in it for just a little bit of weight up their to make it more stable..at least that is what i figured..and that is one of the reasons,aside from flushing it, i took it out in the 1st place.. so the more i think about it,the tank mounts there and not having a bob's jack, why not use it to make the boat run the way i want it to, im a po man and i gotta use what i got fer now....well thanks for the tips and i think ya helped me figure out whats gonna werk for me now,cause now is when i wanna run,esp with nice days a tickin away--sean

[Rickracer]

Yer mailbox is full. Check your inbox AND sent messages. You only get 200 total, so ya need ta weed some of them out. ;) :cool:

[freddyspens]

ya know thats funny u just said that--- cause i just noticed it and deleted a few!!! man they stack up quick and i hate to lose info but i just got rid of a few of the really old ones(man ive been on this site on and off for a long time now!! thanks Greg!!)....im all ears bro, hit with what ya got...- thanks, sean