2" Shorty on a 26 Sonic
 

Anyone try or know someone thats tried a 2" shorty on a Sonic 26 Prowler? Performance gains? I talke to Bruce at Sonic today to see if they ever did and R and D with one. He said they never tried.

Go steal one of Franks, he won't mind!!

Bill, we alreday talked about it. I'll have to wait till next year.

What broke in your drive? Something in the lower?

What's the "X" dimension? How much trim do you have to use to get the rpms up?

Not sure yet. we think it might be in the lower. Haven't pulled it yet. hopefully next week I'll pull it.

X is around 6" Going down tomorrow to clean up the boat and winterize the moter. I'll get a real dimension.

A B1 prop with a 2'' shortie should be sweet it worked on my ol 24 baja picked up7mph with carb change and 2'' shortie went from 76 to 83.2 gps ran out of prop:rolleyes::p artie

If you end up needing one let me know, I have a good friend with a Imco 2" shorty for sale...

Try to borrow one and test if FIRST before spending real bucks on it,your already at 6' which isn't terribly deep for a single. My prop c/l is 7 1/2 on my boat and so far I gained ZERO with a 2" shortie plus boat no longer carries the bow well. Just tried a 1" spacer,carried bow better but still not real good,zero speed increase,Smitty

Hate to spend the money and gains. I'll try one in spring before spending the money.

Just buy it! If it doesn't work I'll take it off your hands for you:drink:

Hey John, where have you been? Haven't seen you on the water.

Sold the boat....but you'll see me soon:party-smiley-004:

What's the scoop John, we all want to know!

First of all, what power/speed are you running?

A noseconed shorty (like the Imco, Sportmaster) will slow a (400hp) 65 mph boat down, but could(!) make (800 hp) 90 mph boat gain 4 mph.
If the current prop to hull dimension is 6", and you go up to 4", without a notch (don´t know if a S26 has one) you may well be already too high for a mild powered boat.

Power, current speed and x dimension?

Let's just say I will hopefully be placing some orders with you soon! What's up with KW..did you find a place to crash? Hope to see you there:ernaehrung004:

Noise...for the record I have no experience with a 2" shorty on a 26. Sorry for the hijack. Keeps the thread at the top though:drink:

NO Prob. Jdub
Motor is aound 580 - 590 HP at the prop. Top speed 71.6 at 4950 rpm. Motor peaked at 5300. So I have some more room to play with. The boat does has a notch.

By the look on that pic ,you could go higher with it?!

I dont have any idea on a sonic but i think it should work, to give you a little more free up at the prop.
Specialy with the notch ,even though its a short one.

May lose a little handling though, since the sonic has a round shaped V.

580 hp, 71 mph and you are still 400rpm below the peak power.
What prop are you running. I´d expect it to be a 26" (on a 1.5 drive) with those figures. Labbed?
Yes, I´d say you are ploughing deep with your current settup. The picture confirms that, too. The notch will effectively mean that the drive can be a tad higher than a similar hull without a notch, anyway.

[QUOTE=Wild Card 09;2720506]580 hp, 71 mph and you are still 400rpm below the peak power.
What prop are you running. I´d expect it to be a 26" (on a 1.5 drive) with those figures. Labbed?
Yes, I´d say you are ploughing deep with your current settup. The picture confirms that, too. The notch will effectively mean that the drive can be a tad higher than a similar hull without a notch, anyway.[/QUOTE

THe drive is a 1.5. I running a stock B 26. I would like to try a 26 labed. Thinking I pick up a few RPM on the top end. What would the do for my mid range (cruise speed)?
Guess I'll have to wait till next summer.:(

Stock 26". You really should try a couple of labbed props before going the shorty route.

With a labbed prop you may lose a couple of mph at cruise speed, but see them added on again at WOT!

Your deep mounted drive may respond well to a 3 blade, with the additional side effect of gaining some more bow lift.

Borrow a bunch of props, and try them, running the same routine each time. 20 -30 mins is enough to get a "seat of pants" feel for what each one does.
You will learn so much about your boat, and what it likes, that way!

You should be able to find 75 mph pretty quickly. After that it becomes more difficult. If your Sonic is anything like my 25OL(non step, old school hull), you will be 2 mph slower in anything appoaching glassy calm water, but may even find an extra mile running in chop that looks seriously scary to be running WOT and trimmed out in. Just take care, please.

Always wear lanyard and PFD´s.

I have trie a few props. Tried a Hydromotive 26. Same top speed, lost 5 mph at cruise. Also a reworked 28 Not sure wat was done to it, think repitched to a 27. A 25 pitch Revolution 4 Speeds were about the same as the Bravo. It did get the boat up easier than the bravo. Ran out time this year, problems with the drive.

i know this is an old post and i tried to PM you but your box is full. I have almost the same boat and power and would like to get any information i can about switching to an imco shorty. thanks, Steve

Steve My Email - [email protected]
I'm running a 28 Bravo 1 on the 2' shorty. My goal was to cruise 50 @ 3800. Depending on the water conditions I'm @ 47 to 52 @ 3800. With 650 hp its put WOT around 75. Heavy boat. 6000lbs, I built a new motor last year little over 700hp and 700 torque. Thunder and lighting (Old Keith Eckert exhaust ) sold by Diamond Performance parts.com. 30" trim Tabs helped a lot. Email me your # if you want to talk.
Mike