2.5 carb prop recemendations

[beauler]

Folks, got any recomendations on a good all around prop for a 19' STV with a 93 2.5 245. Thinking about a 4 blade trophy. I'm new to this game. Any of you hot rodders have a clue?

[Snowman]

I would recommend a 28" Chopper II or if you have the bucks for a 28" ET I would go for that. Best all around props in my opinion for that boat. Is it a sprint, Pro-Comp or what?

[Snowman]

Sorry I should have been more descriptive...that's a Mercury Chopper II and Mercury Lightning ET.

What lake do you boat on? I'm in Ontario as well and boat with a lot of guys who've had STV's for a long time.

[Talon2.5]

i use a 26 quicksilver chopper on my talon 18 foot tunnell as an all around prop with some extra cup and the old weedcutters milled off

[AnthonySS]

BEULER,

The Trophy is not the right prop for your STV. Visit:

www.stvowners.com

You will notice that most STV users prefer a 14.5" x 30" Merc Cleaver or 14.5" x 30" ET.

Please call upon me for any other info you may need. There are a ton of STVowners in Ontario (including myself) that can steer you onto proper setup.

Send me some pics of your rig sometime soon too!!

[AnthonySS]

MERCury Cleaver

[Snowman]

Anthony, you had a 2.4 right? I think that with the 2.5 and wanting to spin it a little higher, a 14.5 x 28" would be the best all around prop.

Depends on your type of driving and boat of course. If you want the big end then maybe the cleaver like Anthony suggested. Personally I like the acceleration and the 28" ET will do the best neck snapping job while delivering 100 + mph top end passes. I haven't found that a cleaver will keep up to a chopper in acceleration but will out perform it on top in some cases. With my experience I personally don't recommend a 14.5 x 30 ET 'cause it will feel like a dog and I don't think that you'll be able get crazy revs out of the 28 anyhow. Do you carry people with you...chopper will carry the weight better.

Euro, Pro-comp, Sprint, Rocket?

[Arizona Hotboater]

Beauler,
I havent found the right prop yet but I can tell ya what props not to use. Yamaha drags work great, ...but not on an STV. Steering feels very strange. (Dangerous)

Also, the chopper....nope. Terrible steering torque with the transom heights that STV's like. I spoke with Anthony SS, STV Helm, Firewalker and some others and the concensus is Cleaver and Lightning ET. I just bought a 28 chopper that I am going to have Tim Hackney cut to a 27 ET. That is the cheaper way over a new ET. Only thing is, I havent tested it yet for myself so I cant speak to the real world performance.

Good luck.
AZH

[ProComp]

The 29 SRX works well on my STV. Good top end and it pulls skiers and tubes. Not sure if it was worked by anyone or not. I could post a picture but it would still be hard to tell.

ProComp

[Firestarter]

I too would go to a 28 ET (a 26 ET if the boat is built by Charger), I know Snowmans boat, and he ran a 28 chopper (altered to what is very similar to the new chopper II) and it halled ass, it ran 95% of what an ET did, with great handling. The Yamaha props work really well on the STV, but not a superhigh hights, and they do not like weight, if you are out lakeracing and have power with little weight the Yammi is the way to go. I too like the cleavers, specifically the 14.5 X 30 merc, it is the fastest best handling prop, but will not pull with an ET till after 80 mph.

Good luck

RT

[AnthonySS]

GUYS,

I think you got to be careful when telling guys about your choppers. Some might think you are talking about stock choppers. There is NO way that a box stock chopper is the way to go.

I would suspect and RT noted some that these choppers have been modified to work well on your STV. My experiences are Ill handling in every apsect and way too much bow lift with most choppers!!

So I would suggest that if you guys recommend choppers...

....please note to the NEWBIE that they are modified and perhaps you could offer them a trial and blueprints of your blades if they want the same prop.

Any of you Ontario boys are more then welcome to try my props anytime. Come on down to Rice Lake and I would be happy to provide the blueprints of my blade designs if you like them and get them duplicated.

Also...I have no complaints about weight carrying with the cleaver either. Just put the fat guy in the back seat!!!

ALSO...under most conditions...like ruff water (which I mostly run)....the Cleaver is the best!!!

Here is my fav again!!

[Firestarter]

I would say that, a small blade chopper is an excellent cheap prop in stock form, and that a regular big blade chopper with the weed cutters and 1/4 removed from the leading edge (the usual balance and blueprint helps), is also a great cheap prop. The stock Chopper 2 from merc is also a great prop-----it is just that the ET and cleaver are better all be it a lot more money.
RT

[Snowman]

I still think that before we say anymore that we should find out about the set up.

Set Back?
running the engine to the moon?
type of S.T.V.? R.T. I assume it's not built by Charger if it's 19', unless it is that Pro-Comp/Sprint looking boat.

Jb

[AnthonySS]

That the easy thing on thses boats that I like most!!

If its and 89 and up... with standard transom

middle hole on the clamp bracket...

...right RT.

That works on most STV's!

[Snowman]

RT has all the measurement for the factory drilled holes which actually works great in the middle holes on the clamp bracket. I like to play so I put mine on a set back and it runs great. I have a Euro which tends to fly differently than the Pro-COmp and I am able to run perfect with neutral trim angles. First day I had mine about 5 years ago now, I had a carb on it and gained 11 mph (on the speedo but still great improvement) by raising the motor 1 3/4"....mind you it was low to start with.

[ProComp]

Come on guys, don't you like how a stock chopper makes the front of the boat do little circles while you have it aired out? Where is you sense of adventure?

(This is what mine did when I threw a 24 chopper on just to see what it would do. I was hoping it would excellerate light crazy but it didn't. Kind of neat how the whole boat rotated. Not too safe though)

ProComp

[Snowman]

We're talking about a 18' needlenose Charger STV here which doesn't have the lift that the pickleforks do.

I'd imagine with a 24" chopper you would need to trim 'er right down eh Pro-Comp? Only time I've ever had a problem like this is when excellerating hard while turning and the trim way up. WOW!!!

[AnthonySS]

Brad...

I aggree...the choppers I have tried do just that...make the boat want to roll over on its side!!

[Firestarter]

A Pro Comp and a chopper will not get along well at all, specially if it has setback!. -----snoman can attest to the last 115mph cleaverd Pro Comp he drove, the bow wouldn't come down on that one. ------ It all has to do with what boat you are ruinning.

RT ---------- Hey Pro Comp, Snowman is a Cat lover.

[AnthonySS]

Beuler,

Here is a 30 merc cleaver for sale...this guy is Ontario

http://forums.screamandfly.com/showthread.php?threadid=12582

[Snowman]

Hey RT,


That last comment could get me thrown in jail!

[Firestarter]

You are riight riding one of them is just cause for being thrown in jail.


Anthony, the boat in question is a Charger STV, a Cleaver will not work on the boat, and 30 is way to big. A 26 chopper 2 or even a 24 is going to be the ticket (the ET would be better, but again is very pricey)

RT

[ProComp]

Alright, STV and Arctic Cat. Much better combination than STV and Pooooolaris, right Rob?

ProComp
ZR800CC

[mxz]

I've seen a couple of those Charger STV's for sale in the Auto Trader lately pretty cheap. What do they handle like over 80mph? The couple I have seen run seem to get pretty hairy over 75, but it could have just been bad driving!

[Firestarter]

They handle very well, the setup is very easy 5-8 inches, set back, and the motor as high as possible. The boat has a speed limit right at about 92 mph, they will NOT go any faster than that.

RT

[apreston]

I noticed you guys talking about theh charger STV the needle nose version maxing out at 92 or so. What about the picklefork version. I ahve talked to a few guys that claim 100+ with modest power 2.5EFI and 30" cleavers. Is there any thruth to this?

[Snowman]

No Problem hitting 100+

[AnthonySS]

Put a 2.5 EFI on a ProComp 1TEENS
Put a 2.5 EFI on a Euro 110

...VERY NICE with 2.5 EFI

[Snowman]

Anthony make that 1Teens in the Euro too!

[Firestarter]

I cannot say much about the STV by Charger pickel fork, know as the sprint, I have never driven the charger version. I had a Charger STV needle nose, and I am famillier with the STV built sprint, and it will indeed run over 100. The STV built version is about ten mph slower than the inverted vee boats, and I would say that the Charger version is again slower do to weight-----but it is indeed capable of 100+

RT

[apreston]

Any idea on set up for the Charger built (sprint) hull design. IE set back prop, I have seen a guy with a 30" cleaver and around 5 1/2" of set back he says it runs pretty well just over 100 around 103 - 105. Any thoughts.

Also somebody showed me one of those extreme hulls. I looks just like the charger picklefork smae molds? what are those.

[Firestarter]

That setup is about right, as are the speeds. The Extream is the old Charger molds--------stay away

RT

[apreston]

Any idea on set up for the Charger built (sprint) hull design. IE set back prop, I have seen a guy with a 30" cleaver and around 5 1/2" of set back he says it runs pretty well just over 100 around 103 - 105. Any thoughts.

Also somebody showed me one of those extreme hulls. I looks just like the charger picklefork smae molds? what are those.