Setback on tins?

[bassin_man]

Do tins benefit from having a setback? Not talking the high performance xpress but more along the lines of rt188, vt18, tracker 190,etc.

[Skeeterbait]

On a Mod V hull you are only going to get a certain amount of lift. The setback will help with leverage to a degree but not to the extent of a pad hull. It can help with prop slip by moving the prop back a bit from the hull giving it a bit cleaner water to run in and possibly allowing the engine to be ran a little higher, it can also make it easier to get good side image transducer results by getting the motor out of the way of the signal.

[njpaulc]

It can help with handling and ride. They can lead to speed loss.

[sayner]

It can help with handling and ride. They can lead to speed loss.

+1 on this and what Skeeterbait said. What can be more useful is a hydraulic plate, like an Atlas Micro Jacker if you fish a lot of shallow water.

[mrc.in.wi]

I put a 6" manual on mine. I'm running a 90 Etec. Speed gains were minimal, but it cured porpoising and help the boat run better (faster) under a load.
Without a jp, with a passenger and a full live well I lost 3-4 mph and it porpoised bad. Now I run the same speed empty and loaded. Porpoising is gone.

[PsychoXP18CC]

I'm still in the early phases of testing since installing a 6" plate on my XP18CC, only having two short trips to the lake with it so far.

My main reason for installing it was to raise the motor up and gain back some draft from the horrible factory setup. My prop shaft height was 9.75" below the bottom of the boat. Now, the shaft is 4" below, gaining me almost 6" of draft.

Before, I was able to max the rpm on my F70 at 6,200 with just me gear in it, add weight and it slowed a few mph as would be expected. Now I can hit the 6,500 rpm limiter with relative ease running a full load of gear by myself and I picked up 2mph in the process.

I definitely got better lift and more responsive steering out of it too. I can now trim up til the prop starts blowing out without porpoising as well. Once I do a little more testing, more data, I'll start looking at prop mod's/options to make better use out of the new setup.

All in all, I couldn't be happier so far. Like all my projects it wasn't w/o hurdles. My steering cable was just a tad too short with the additional setback, so I had to install one 1' longer ($100), and I installed a water pressure gauge for peace of mind ($75) which required making a new dash bezel ($30) and cutting on the console a bit to fit it all in. What would normally have been a 2hr job ended up taking a couple of weekends in labor and waiting on parts to arrive. But I got it done, right, in time for our 4 day trip to the Sabine River this weekend, so all is good.

[Great Scott]

Now that you are hitting the limiter w/ease, you might
as well increase your prop size and gain some speed.
You can have it worked and repitched. I recommend
Mark Croxton. LDS

[maxo]

Now that you are hitting the limiter w/ease, you might
as well increase your prop size and gain some speed.
You can have it worked and repitched. I recommend
Mark Croxton. LDS

A lot of good talk about speed but does the Xpress (pad hall) handle rough water better and how does the does the pad vs modified draft.

[Tstella]

I love my plate. It allows me to get into super skinny water and get on plane in as little as 2ft of water. The only drawback for me atleast is hanging the motor farther off the transom puts the weight further back from the centerline of the boat making the rear sit slightly lower in the water.. although it is mostly only on tracker models. For me the benefits of a plate outweigh the boat sitting slightly lower in their rear.

[Ranger Ryan]

Here is my RT188 with trim tabs removed and a 8" jackplate

[Ranger Ryan]

8" Atlas

[sayner]

8" Atlas

How long have you been running that set up? I would be worried about there being to much leverage on the transom and it developing cracks.?Not saying it would happen, but I, personally. would be worried.

[PsychoXP18CC]

Now that you are hitting the limiter w/ease, you might
as well increase your prop size and gain some speed.
You can have it worked and repitched. I recommend
Mark Croxton. LDS

I definitely plan on re-propping to get more out of it. I just want to run it in a few different scenarios to gain more data before I start speding more money. I've run it bare minimum and loaded with just me, this weekend I'll have another big guy in the boat with me and a pretty good load of gear so I'm curious to see how she acts then. But yes, there's some left on the table for sure. I'm only about 30 min's from Steve's Custom Props/Hydro-Dynamics at Lake Fork, they are the ones helping me get the setup right, and so far they've predicted everything that I've experienced.

[Ranger Ryan]

I've been running this setup since September. 8" Atlas and I had the trim tabs removed. Removing the tabs gave the bow tremendous lift but, at a cost of porpoising. The setback helps eliminate porpoising and I have Chris Bailey foil that'll be here tomorrow for additional porpoising elimination.

[Great Scott]

I wish you luck on the foil. If you are high enough
at WOT to clear the foil of water, all will be well.
If not, the foil will hurt more than help.
Thats the luck I had. I'm 5.5 below, and I couldnt
clear the water w/mine. I cant go any higher w/o
loosing water pressure.
I'm surprised close as you are to Steve, that
you arent running one of his hydraulic plates.
I, like another poster, fear you are inviting transom
failure w/the 8". Fours and 6s are usually whats
used on tins. Keep us posted. LDS

[Ranger Ryan]

I wish you luck on the foil. If you are high enough
at WOT to clear the foil of water, all will be well.
If not, the foil will hurt more than help.
Thats the luck I had. I'm 5.5 below, and I couldnt
clear the water w/mine. I cant go any higher w/o
loosing water pressure.
I'm surprised close as you are to Steve, that
you arent running one of his hydraulic plates.
I, like another poster, fear you are inviting transom
failure w/the 8". Fours and 6s are usually whats
used on tins. Keep us posted. LDS

help me out here...Steve who?

[Bellville_Tx_Fisher]

help me out here...Steve who?

I believe they're referring to Steve, over at Steve's Custom Props/Hydro-Dynamics at Lake Fork

[Great Scott]

Deleted. LDS