ive seen many inland applications, but..... hardly any off shore... can they handle the pressure/ racing/ pounding off shore.... ive seen one or 2 with multi engine brackets...

1.does it even make sense to use them... when you are off shore and inland in shallow water in ur boat??

2. I seen in an multi engine application where all the engines are raise at the same time.... makes sense.. or each engine has its own jack plate??

3. different types of jackplates for multi engine application....

thanks,....

I don't know much about this topic, but I do know this much. If I wanted to buy a jackplate, or talk with someone who would have answers I would call Bob's Machine Shop, the phone number: 855-JACKPLATE/813-247 -7040(per the ad). Bob's is in Tampa, FL. I have always heard good things about Bob's.

Here is the link to the website, I am eager to hear your findings and what others have to say. Here are the links to Bob's, I have them below, goodluck in your search

http://www.bobsmachine.com/aboutus.sc
https://www.facebook.com/Bobsmachine

Hi!

I have a stainless marine gorilla jacplate on my 25 feet offshore Phantom hull. I have a verado 350 sci mounted on it.

I use the jackplate all way down for heavy seas. One inch up for cruise in calm water, and two and a half inch up for top speed. With the jackplate you can optimize the balance of the boat and the prop shaft height for any speed. You even save fuel using it!

A must to have for me. The gorilla jacplate is one of the strongest out there. No hesitation whatever wheater.

Cheeers, Toffen

Honestly it does not make sense to NOT use them. I dont recall ever seeing any outboard boat without them, they give a ctitical ability to infinitely tune a setup. I dont recall ever seeing one faill either.


are you referring to jack plates and brackets?

well... switching from I/o to outboards....
1. bracket needed....
2.. jus go with a bracket?
2.5 or with the porta bracket
3. if I just get the bracket, do I mount the engines on the jackplate on the bracket?
4. will it handle the big 350s < ( jackplate and bracket,
5. jus go with the porta bracket and make sense out of everything?

please help.... what are some of oso application and can u show me pics... and help me make things work...

What's it going on? I've got two 3 liters bolted directly to an Armstrong bracket. ( 1040 lbs ) I haven't run the boat much since I got it but did take it for a good piss pounding in 4 and 5 ' ers before I put it to bed for the winter. I'm curious about the jack plate durability too. Just getting back into outboards from I/o.

Last o.b. boat I had did have a jack plate but it was a 17' and never saw rough water.

Not even sure it would make a difference for me with my current boat.....

The person to call is Scott Porta, with Porta Products he uses his brackets on the back of his 32 Doug Wright Race boat

What size boat? Are you talking hydraulic or manual? How many engines?

I'm yet to own one yet (that's adjustable, whether manually or electric/hydraulic) that I haven't smashed!
Depends what your doing with them. If you run offshore but just cruise, they can last. Race or run extremely hard and it will probably fail.
Initially I needed adjustable to find correct running height for different props. Soon found a very small window in height adjustment that worked for everything. After breaking plates enough I made my own static setback (it runs quicker and actually corners harder with 10" setback) that just had 4 different hole positions. I then bolted it to transom with 3/4" bolts cause I was sick of breaking/bending 1/2" ones and used 15mm bolts for engine to setback, 2x at top and 1 at bottom on each side (merc bolt holes will take a 15mm ss bolt. You just need to be sure your jack plate or setback holes are perfect or they won't all line up).
Haven't tried the gorilla plate Toffen speaks of or seen it used, so it may be ok?

HI!

I have used three kind of jackplates during the years.

1999-2000: CMC jackplate in aluminium. PL-65. Did not hold up for more than one season. Engine Promax 300 SVS
2000-2006: CMC jackplate in stainless steel. offshore version. PL-65SS. Very strong. However, the hydraulic unit needed to be replaced after a couple of years. Engine Promax 300 SVS
2006-2011: I did not use jackplates since my 2 x Merc 2,5 EFI SS engines was mounted directly to the transom
2011- : Stainless Marine Gorilla Jackplate. Been top notch. Very strong. Verado 350 sci.

Cheeers, Toffen