Jack plate mount height

[TroyBoy30]

Copied from the general forum just in case

http://www.bbcboards.net/zerothread?id=729940


So I just got my boat back after having an 8 " atlas jack plate installed. They used the third hole from the top on the motor to mount to the plate. They mentioned they used the third hole to make sure I could raise the motor enough. They also installed the digital gauge which reads 1 (bottom) - 20 (highest)

So I got a chance to do some measurements today. 2.5 - 2 3/4 inches below pad is where I'm told I should be for best performance.

Pad is 13 1/2 "

Prop is 11 " @ #6 on gauge
= 2.5 "

Prop 10 1/2 " @ #4 on gauge
= 3 "

Prop 10 " @ #1 on gauge
= 3 1/2 "

Somebody double check the math! lol

So my question. Do I need more downward range? Should I change motor mount holes as to give me more adjustment down and use more of the range of the plate? If I move the motor to the top mounting hole wouldn't that give me the option to be much lower that 3 1/2 " below pad and still allow me to get back up to 2.5 " below pad? Or should I simply leave it?

Hopefully someone will understand what I'm trying to ask!

[StratosBrad]

Yea, if they put it there you will have more adjustment possible.

[ep72]

On a 294 its set perfect the way they set it up. Lower the plate all the way and trim in for take off, and on top end your gonna want to be in the 2-2.5" depending on prop below pad range and about 3/4 trim for best overall performance and handling @ WOT.

[TroyBoy30]

So I'll never need to go lower than 3 1/2" below pad? Sure seems like I'm loosing a ton of height adjustment

[ep72]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by TroyBoy30 &raquo;</td></tr><tr><td class="quote">So I'll never need to go lower than 3 1/2" below pad? Sure seems like I'm loosing a ton of height adjustment</td></tr></table>

Nope my manual 8" plate on my old 294 stayed @ 2" below pad with a 27 TXP and 2.5" with a 28 Bravo1.

[Blue Steel]

Eric is dead on

[TroyBoy30]

kewl thanks!