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What gives
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Author:  Bad_Influence [ May 16th, 2013, 9:14 am ]
Post subject:  What gives

Im at the cottage just burned 180 l of fuel Raised the engine up by 1 inch increments tryed ever possible trim angle and i actual lost 1 mph it must be the weight factor of the Vmax engine Im doing everything right I got up to 5900 rpm

Author:  DoktorC [ May 16th, 2013, 11:58 am ]
Post subject:  Re: What gives

The AE should love the weight. Has the boat gone fast in the past? Is it solid and straight?

Author:  idvette [ May 16th, 2013, 12:57 pm ]
Post subject:  Re: What gives

How high is the motor and what setback are you using? A lot of guys with these boats are running big setback with success.

Author:  Bad_Influence [ May 16th, 2013, 2:08 pm ]
Post subject:  Re: What gives

DoktorC wrote:
The AE should love the weight. Has the boat gone fast in the past? Is it solid and straight?

The boat runs straight I tryed a Hydrom ative 30 p got 85 out of it

Author:  Bad_Influence [ May 16th, 2013, 2:10 pm ]
Post subject:  Re: What gives

idvette wrote:
How high is the motor and what setback are you using? A lot of guys with these boats are running big setback with success.

I only have the 6 inch set back And as finances goes it stops there L.O.L.

Author:  wildcatt [ May 16th, 2013, 2:58 pm ]
Post subject:  Re: What gives

Bad_Influence wrote:
DoktorC wrote:
The AE should love the weight. Has the boat gone fast in the past? Is it solid and straight?

The boat runs straight I tryed a Hydrom ative 30 p got 85 out of it



at what RPM

I always try to relate a speed with RPM and prop pitch. Being that all 3 are closely related - only saying 1 or 2 of the 3 numbers doesn't give enough info to try and figure out what is happing.

Then you can start to try and develop a pattern with the addition of engine height and trim. There are a lot of factors to consider. Missing 1 part can send you off on a witch hunt.

Author:  dubber [ May 16th, 2013, 5:28 pm ]
Post subject:  Re: What gives

Bad_Influence wrote:
DoktorC wrote:
The AE should love the weight. Has the boat gone fast in the past? Is it solid and straight?

The boat runs straight I tryed a Hydrom ative 30 p got 85 out of it


What he means is that is the hull straight (i.e. not twisted or other problems in the hull that would reduce speed potential).

Author:  beavertonae-21 [ May 16th, 2013, 8:06 pm ]
Post subject:  Re: What gives

First thing we need from you Charlie is the propshaft height. With the motor trimmed so the propshaft is parallel to the bottom of the centre hull bottom, measure from the centreline of the psopshaft to the bottom surface of the centre hull. more rpm and no more speed is probably too much trim, the ae with that prop should like all the height you can get with that plate.get us that measurement and we will start from there.


Steve

Author:  idvette [ May 16th, 2013, 8:32 pm ]
Post subject:  Re: What gives

beavertonae-21 wrote:
First thing we need from you Charlie is the propshaft height. get us that measurement and we will start from there.


X2. Again. Part of my original question. Those hulls seem to like the motors up and back, let us know where it's at so we're not pissing in the wind here lol

Author:  v8 charged [ May 16th, 2013, 10:19 pm ]
Post subject:  Re: What gives

i think you need to come to v8's house for some prop testing.. ;) 8-)

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