24 Foot TRS x dimension
 

There is a lot of talk about x dimension for bravo but TRS is kind of out of the picture now. The transom in my boat will be done in about a week and im trying to figure out if i should move it or just leave it where it is

And no I am not switching to bravo because i have a freshly rebuilt drive and transmission that have less than 10 hours on them and i happen to like TRS its big and bulletproof

Leave it, high x does little for a Pantera 24.

He's right , it only increased my MPH by 9 . and made the boat feel safer and not walk all over the place . Don't change a thing . Who cares about speed and safety anyway ?

Total, complete a$$hole sarcasm aside, from the horses mouth, Jo, and my experience with a 24. Higher x does not help much. Boat never aired out with good trim with a higher x. Very wet at top speed. Lost leverage. After discussing it with Jo, he agreed. That is my experience. +9mph from higher x only? Good luck..

The boat I am referring to was a TRS for Bravo swap with a somewhat raised X so very similar to your situation.

i would be sending pm's to tomas-wallen and ask him for his heaight measurement. i know he is a bravo drive but he has his boat dialed in pretty dam good.

Huh. .... jo must be off the bi polar meds or something because when I spoke with him we had very lenghty conversations about the pros and cons of my future X on my 24 restoration.
I forget the exact #s now so I won't make them up but he gave me examples of boats and their strong and weak points with varying X.
There was like 6 or so different height cuts usually jumping in 1/2" increments.

he WILL tell you what he likes best for all around. For bravo I think it's 16.

good info here http://www.offshoreonly.com/forums/p...ls-496-ho.html

I believe Jo said 17 was the best allround height.

I think I cut mine at 18-1/2, prop shaft is about 3-1/2" below bottom.

I also redid the Delta pad and extended the inner strakes a couple ft.

Best speed so far with stock 496 Mag Ho with headers is 83mph and I can keep my hands off the wheel for 10 seconds before it gets unsteady...

Im looking to hit 70 with a rebuilt 420 mag/roller cam/stainless marine exhaust/holley 800.

Im not building a race boat im running the boat in buzzards bay MA in some relatively rough water so handling is more important than speed... i like to get on plane quickly too.. but i still want to hit 70 if i can lol

some of the old school dudes must know what the perfect TRS x dimension is.. I have heard 17 1/2 but not sure

Yes tomas your prob right. ..I can't remember what I had for dinner last night never mind a conversation I had yrs ago. I went 1/2" higher than a standard 24 comes from the factory. I think ive got the same x as the army boat that jo ran.

sparky. Call the factory. Jo loves to talk. Even if he is busy he will give u a minute of advice on your trs X although the pantera & excalibur running surfaces are a lil different which I think u know.
call nopper in Fairhaven he has experience with 24s. I think a friend of his has a excalibur / trs. Ask how it runs and bring your tape measure over

Most of the TRS's were set up at 18" but they are 2" taller than a std bravo so it becomes similar to a bravo at 16" however the TRS prop is further back away from the transom kind of like a short setback as compared to a bravo. I would think that 19" for Mirage type 3 blades and 20" for 4 or 5 blades would be good with the TRS and you would be able to maintain some hatch clearance for a carb motor arrestor etc... Remember TRS spacers are no where near as easy as putting a spacer in a Bravo so you really only want to cut it once and get it right. A real 420 TRS at 19" with a labbed mirage plus should do 70 easy at sea level

Yea i will call jo and nopper on monday. i have to figure this out by tuesday b/c the glass will be done probably by wensday and i have to let the glass guy know whether or not to fill the fiberglass in.


Is there anyway to find out what my current X is without having a TRS transom jig? ppl have measurements for bravo from the bottom of the keel to the bottom of the gimbal (transom assy??) but i cant find a measurement like that for TRS anywhere... i guess i have to find a jig

Just measure from the bottom to the hinge pins. Mikes pantera is at 17.5" if I'm remembering correctly

i can probably have a measurement on a trs boat from the gimble to the bottom for you tomorrow. there is one in the pole barn sitting next to my top gun.

Subscribed for updates. Our Excalibur with a LH Konrad, a five-blade Hydromotive and a 525 SC is a terrible running POS. We were thinking of swapping on a TRS to see what happened.

What power ^^^^????

Does the Konrad act like a shorty? Maybe prop is too high

It's a 525 SC. I think it's stock, but there's no way to know. I think the prop might be too high. I'll try to measure the X the next time I'm at the shop where the boat is stored. Sparky, we may see you out there next season. We boat out of Falmouth.

The Konrad is just shy of 2" shorter iirc. With that power why the left hand drive and 5 blade prop?

The left hand is supposed to counteract the rotation of the motor so the boat doesnt lean over at speed, i think thats the idea?

thats alright man i think im just going to call the pros for some advice and hopefully find a jig to borrow or rent

We bought it set up this way and have only had it out a couple of times. Any suggestions would be much appreciated!

I only see a need for the left hand drive if you're 26" pitch or higher, that's when they start having enough leverage to lean the boat to one side when running hard. Unless the x dimension is very high I can't see the 5 blade being necessary. Start off by throwing a 24" bravo 1 prop on it and see how that is. A mirage prob won't work too well with the shorter Konrad drive. If the 24 is a little steep and a 22 works better for the motor get your hands on a right hand trs to try and see how it handles.

We have "spare" right and left rotation TRS drives on the Superboat and Sutphen we can throw on there for testing purposes as well as a pile of Mirage props. Should we stick with the Konrad or swap on a TRS? As-is, the boat porpoises badly at cruising speed and seems to want to walk the stern when you hit the gas hard (and especially on re-entry if you have some air under it).

Thanks for the help!

Sparky, sorry for the thread-jack. I'll be interested to see how your project turns out. We boat out of Falmouth and are often on Buzzards Bay so we'll probably see you out there. I will say that we've been impressed with how solidly the Excalibur is built and especially for an older boat. You can land it hard without it shaking, groaning, etc.

Yea we run from onset to oakbluffs and everywhere in between woodshole, magansett, bassett island, is ussually where we are at. With the excalibur im hoping to be able to run down to Narragansett more often though. Barring any blown up engines or similar mishaps this season is looking like 100% for me hahah

And yea they are a really nice boat much better than some of the other 24 footers, the fact that the entire deck is glassed on to the hull really helps i think.

I just talked to pepe he says that he cant remember exactly what the perfect x for TRS was, but he remembers that whatever the mercruiser stock spec for the x was, it was 2 inches over that and the boat would run perfect. He actually told me to call up mercruiser and find out what the old x was supposed to be see if i can get one of the guys to look it up on the microphish. He also told me to check with some others first too cause his memory could be wrong.

Now DBA this will be useful to you, he says that whatever you do dont put a left hand drive on a 24 footer, it was funny that he brought it up cause i didnt even ask about it. He said he did that one time cause merc was backordered for right hands and the boat ran like sh*t, really squirrely and so bad he had to take the boats back and switch them to right hand drives. He said it didnt make any sense to him because he thought that it would help the boat not lean over as much but for whatever reason it just doesnt work

Call nopper. I know his boy has a excal 24. He has had it a while so it should b dialed. Trs boat.
lot of 24 7 on buzzards bay for 14 season

im gunna stop by nopper 2moro. Im hoping he has a jig i can borrow or rent

I think i might own the boat you are thinking of, the only other excalibur i know of is that ironman one but thats a bravo boat. either way i went by nopper he told me that 1 to 1.5 over stock is where to cut it but that honestly he would just cut it where it was. Now that i think about it if i even raise the x my exhaust will come out through part of the deck so yeah chances are im just going to cut it where it was

Was thinking iron man. Idk it was b1.
Ya with my b1 [email protected] my exh is right up a against the rub rail

good luck!

My Dad's 1978 24' Excalibur had a 400/454 TRS with the prop shaft set about 7" below the bottom.
My 1989 24' Pantera 330/454 Bravo had the prop shaft about 5" below; same with my 1997 24' Superboat.
My 22' Donzi has the prop about 7" below but it's a round bottom at the transom not a straight V all the way back like the Pantera and Super.
Personally I believe having the prop 5" below is a good place and will work with both 3 and 4 blade props.

I started with TRS at X 18 then changed to B1 at X 17.75

well there are some issues w the transom. loving life right now

Where did you take it?

I'm hoping he will make right before I trash anybody

What was wrong?

meh its not imprnt

Whoops....my bad.....sorry for the confusion. There's a excal 24 around here called "iron man"

Funny concidence though.

Well i took the boat back and the guy made right as far as im concerned.

If you want pm me. I've got the # for a very good , very fair $ fiberglass guy in new bedford.
Lil red has a good glass guy in Bristol ri