Fountain Question
 

I road in a 35 foot Fountain over the weekend with staggered 600's. I was impressed to say the least when the speedo touched the 100 MPH mark. However, I was also surprised as to the "chine walking" that was occurring. Can this "chine walk" be controlled with steering corrections (like an Allison or Hydrostream)? Trim tab settings?

Just curious. Thanks.

Mike

What speed did it occur? What was the water conditions?Sometimes you can drive thru it by rocking the steering slightly back and forth or putting the throttle down harder and accelerating thru it. Trim tabs is another way to do it, but you will scrub off some speed. It can be a prop issues also. I had it in my Sunsation at around 65 and just had to bump up the throttles.

My friend's 1998 35 doesn't chinewalk at all . Has twin 600SC
with blowershop blowers and standard engine placement. He has standoff boxes and the props turning inwards.

This happened at ~ 95 MPH. Somebody on Scream and Fly mentioned that it was probably the driver. A Fountain drives like a "big Allison". I don't know if there's truth to that or not.

Mike

I was going to say that I don't know too many 35 Fountains or any Fountains that do much chine walking. I run with a bunch of different ones and they are all very stable and ride on rails. Could be a bottom problem?:drink:

Driver had it trimed too far out, actually if he had trimmed in .5 incriment you would have cleared past 100mph. Some people just don't understnad too much trim actually will slow you down??:evilb:

Quote:

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Originally Posted by mikesufka (Post 2957378)

This happened at ~ 95 MPH. Somebody on Scream and Fly mentioned that it was probably the driver. A Fountain drives like a "big Allison". I don't know if there's truth to that or not.

Mike

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We're running exactly 96 mph here according to the chopper pilot . Four of us in the boat , not a hint of chinewalk.

http://www3.telus.net/spectrasonly/3...0SC%2097%20mph

Had a 2000 35 Lightning, with Whippled 540's, I could make it chine walk if I over trimmed the boat. But trimming it correctly and keeping the k planes level with the bottom, it wouldnt move. Our 38 Fountain w/700's is the same way, rock solid at 114.

Was it a dealer demonstrating the boat? Sounds like the driver did not have the tabs and/or drives set correctly. That boat should run a lot faster than 100.

Side by side 525's here and sunday afternoon at 92 it was on a rail! My guess here is that driver did not, or does not, know how to set up the boat at speed. Many 35 Fountains have run well past the number you are talking and are on a rail at those speeds, both single step and twin step hull designs. I've been in some at well over 100 and it is a brain dead deal, assuming you know what you are doing.

I have seen Fountains chinewalk a little in flat calm conditions...minimal tab will eliminate with almost no speed loss

Mike,

MN? You must be driving Jerry Bergs boat and I have run that boat at 108 without chime. Set tabs at 3, drives about 4.5, should not chime walk at all at 100. Over 100 you will need to burp the wheel.

Team Shogren

www.teamshogren.com

Yes, it was Jerry Bergs boat. I wasn't driving, just riding. Beautiful boat. One of my favorites on the Whitefish Chain.

Mike

My 32 will walk a bit around 75 if the tabs are not set right, props turn in.
US1 told me he turns his props out and changed completely, no walk only lost 1 m.p.h.

I have wondered the same thing Mike Sufka is asking. At really high speeds 90-110 mph in an Allison 20' outboard v-hull they chine walk and need to give slight steering input to correct. Very slight. It is easy to do once you have mastered it. It took me many hours of seat time to get it. I have wondered if the the really fast offshore v-hulls are the same way. So there is some burbing of the wheel needed? Makes sense and is easy to do if you know how to do it. I wonder how many drivers can do it and if anyone has shown them? Mike L is an example as he commented his race boat chine walks a little bit at 115+ in flat water.

Same Fountain staggered less power 525's no chine walk @ 103
MPH:boat:

Never herd of Burbing of the wheel, can someone tell me what that is?

I've had mine chine walk up to 100 and then the next time like it's on rails. I think it has to do with trim and water conditons, also driver error.

Burping the wheel........hold the wheel in your arms and gently pat it on the back....drrrrr everyone knows that.

What is the fastest anyone has ran a 35?

What is the fastest anyone has ran a 35?

Talked to an owner of a 35/700 and 6's said it ran 119 mph.

Please remember that this thread started with a staggard 35. Most of the responses refer to the old schoold versions, which were side by side. In the rough, it is a shortage of fiberglass. Lets see, a 32 foot boat doing 100mph, yep, you will have to drive it like a race boat. The 42 700's don't chime at all, and they do slightly over 100mph.:grinser010:

the 35's do not chine walk. props like say a 6 bld hydromotive will cause chine walking over 90.
i have driven over 30 different 35's . its. standoff. on the transom. imco's. merc speedmaster. low water , dual water. maximus, hering, hyrdro, merc.
they do not walk unless set up wrong.
with 600 hp you should be seeing more like 105+

Monstaaa,

Our fountain is a 35 lightning, non staggered, no step hull. We had 557 cu in BBC N/A around 700 hp with Speedmaster 3 drives. This set up ran 102.

The new engine set up will be at least 1000 hp, we are trying to decide if we want to go with 5 or 6 drives and top speeds.

Any thoughts?