porpoising z210
 

Anybody with a z210 have an issue with porpoising? Took the boat out on sat and couldn't get it to stop. Didnt matter where people sat or trim, it would still do it. It was windy out but didnt seem to bother other boats on the water.

Re: porpoising z210
 

Are you sure that your outdrive is actually trimming properly?

If it is then you may have to do what most others do who have this problem. Install a set of Smart Tabs.

porpoising z210
 

It was trimming correctly. Even had the other half operate it while I watched it.

Re: porpoising z210
 

Read somewhere that someone had a "whalefin" on the outdrive and it was loose causing the up and down motion, wasn't loose by much but enough where trim wasn't making that much difference to counteract it but got the porpoise effect at any speed...shot in the dark I guess

porpoising z210
 

No fin on the out drive. Guess ill look into the tabs

porpoising z210
 

Tabs are well worth the money, added them over the winter months and have been enjoying them the last 10 or so trips out. Great investments. And they look cool when plained out!

Re: porpoising z210
 

Anyone who installed a whale tail on their Mariah outdrive deserves to have it porpoise. :mad:

porpoising z210
 

I have seen the tutorial on the tabs on here. What kind/size would be a good start? I'm away at a conference with the army so have limited Internet to research. Would like to order them ASAP.

Re: porpoising z210
 

Your boat can handle the 80# Smart Tabs SX or the Mobster tabs fairly easily. You can check out the full information and videos on them here. If you buy from them tell 'em the Mariah Owners Club sent you!

Re: porpoising z210
 

#80's Nauticus Trim Tabs Sx Composite 9.5"X10"-80*, says $129.99 but when you add them to the cart it drops to $99.99...I ordered a set of 60's for myself this morning :)

Re: porpoising z210
 

Oh dear! there goes Mikey's blood pressure again! :rolleyes:

Bit of a pet peeve aye Mikey :rolling_laugh:

Re: porpoising z210
 

I agree with him wholeheartedly!!

Re: porpoising z210
 

I think that you will find the 80 lb arms too stiff for your 180. Most of the rest of us did...

Re: porpoising z210
 

My 60's run on the middle holes,
unless I know it's gona be a bit rough or I have a boat full.
On their hardest setting they have there own roosters so they must still be digging in ;)
And I loose a good 5 or more MPH off my top end if I forget to reset them!
I know you won't need 80's on a 180

Re: porpoising z210
 

I had a 16 footer that I swear had a ground up porpoise glassed into the hull.
My thumb got tired from constant trimming with limited results.
Smart tabs did all they claimed and better.
Company support during purchase and install was first rate.
Can't praise them enough.

Re: porpoising z210
 

I have the 60's on my Diablo 180 with the 3.0L. I can't remember how I have mine set - but they put the boat up on plane instantly without nailing the throttle. I absolutely love them.. but the best part is when i'm heading back to the boat ramp (which is a long stretch of no wake area where you have to "creep" FOREVER. The Smart tabs made me go from looking like a drunk driver (had to constantly work the wheel left to right to stay semi straight).. to a perfect driver. The boat tracks perfectly straight at super low speeds now. Also, I did not lose any MPH with my install (checked it before and after running my 14.5x17p Michigan 3 blade on my GPS). However, I will test it out again..once I swap over to my 19p (which I need to get rebuilt).

Re: porpoising z210
 

Just so I get this right before I order them, I need the 80# ones for my z210 correct?

Re: porpoising z210
 

I don't notice any loss with them set on the middle hole. it's just if I've got them set on the hardest setting (furthest hole out) they dig in and slow the boat.....a bit ;)
mind you if I've got them set hard then i'm either loaded or it's choppy out so i'm gona be slower anyway :rolleyes:

Re: porpoising z210
 

jsewall82,

Yes the 80lb tabs are what your after.
You have 5 different settings to play with for downforce adjustment. :)

Re: porpoising z210
 

I had the 80 lb tabs installed on my Z210 before I took it out for the first time and can't compare the with/without tabs, but I can say that I have never had it porpoising in the 60 hours that I've put on the clock. I usually run with them on the middle setting.

Re: porpoising z210
 

Definitely.... those things are good for tin cans with outboards on the tail and that's it. :thumbdown:

Re: porpoising z210
 

http://www.instablogsimages.com/1/20...itle_39ojm.jpg

I don't think this Tin can has a whale tail...

Re: porpoising z210
 

Doesn't have an outboard either....

Re: porpoising z210
 

:rolling_laugh:I gotta see it even float!!

Re: porpoising z210
 

It has lot's of thing's mounted "outboard" lol. I would have loved to of seen this in the water!!!!

Re: porpoising z210
 

Got my trim tabs today, they're going on the boat tonight as soon as I get out of work and then off to the lake late tomorrow with no porpoise effect :)

Re: porpoising z210
 

i ordered mine yesterday. not sure when I will get them, hope its before I head down to the Suwanee river

Re: porpoising z210
 

:band:

Way down upon de Swanee Ribber,
Far, far away,
Dere's wha my heart is turning ebber,
Dere's where de old folks play.


oops sorry 'bout that. :)

porpoising z210
 

Ha ha. Family has property on it so its free place stay right on the water.

Re: porpoising z210
 

Hope I don't insult anyone.. but as a reminder

Measure ten times, not twice... this is a Mariah!!!..... you may need a small thing of tissues - cause drilling her may make you cry or have cold sweats.

If you have a Whale Tail - quietly remove it before posting "before photo's" to the forum.. or moving onto the next step. Also, you don't want to be "that guy"... the one responsible for giving MikeyT a stroke, high blood pressure, or any other number of debilitating boat picture induced coma's.

Mask the area to be drilled to help stop any spidering of the gelcoat. - also, it's sort of like blind folding your boat so she doesn't know whats about to happen until it's already over.

Reverse your drill and run it slowly allowing the backside of the bit to burn through the exterior gelcoat - then turn the drill the right direction to drill the actual hole (if that made sense lol). Run both directions at a mild pace and check the shavings for moisture etc. (one of my holes actually had water run out... this may be normal but I panicked immediately )

Have some 3M marine adhesive handy (just don't buy a semi expired tube of it like i did - It wouldn't come out with my gun, so I had to slice the side of it and dip it out.. man was that messy.. but it worked and was only $2.00 for a big tube of 4200 and 5200)

Have a pair of pliers, a flat screw driver, a small handsaw, a utility knife, and some stainless staples and a stapler handy in case you have to go all Dexter and cut back any of the bunks on your trailer. (I had to cut two of my bunks so they were flush with the transom - if not they may have interfered with the Smart Tab's when loading/unloading).

Also, have a cooler with your favorite beverage on standbye - not because the installation will take long... but because you'll want to have a cold one while you admire your handy work.. and possibly one of the single best mods you'll ever do to your beloved Mariah!

Re: porpoising z210
 

Thanks (sarcasm)..there I was all prepared with tools at the ready, now I'm reaching for some jumbo towels to wipe the sweat off. I think I need another coffee LOL...I'll post my results a pic of my handiwork later on my first attempt to breach the hull :sweat:

Re: porpoising z210
 

LOL... it'll be okay.. once you poke her once, you'll be okay with poking her a few more times lol

Re: porpoising z210
 

Not even gonna go there with an answer to that, I'd get banned from here LOL

Re: porpoising z210
 

True... well... we will let you get back to screwing bwahaha. But seriously.. use that tape for protection :O