I would be interested in a pair if you could figure out the reverse rotation, have no desire to have reverse rotation engine,

sorry
i had a total brainfart on post 80.
trs reverses rotation in the lower with gear on carrier instead of in nose.
alpha 1 gen 2 reverses rotation in lower by simply running in reverse but the carrier is shorter.

Hello SlowRyd. I pm you yesterday. I want to shorten my
Bravo lower and I wanted to talk to you about
Getting a deep enough weld. And cutting down the vertical shaft. I want to run my drive on surface. Taken out 4" to do so.

Hey man I just saw this in my email. I can give you a call tomorrow to talk about it but I can tell you now 4 inches isn't possible. You don't have the space on the vertical shaft between the bearing and you prop wouldn't fit with a bravo upper. You would have to have the scx4 upper to have prop clearance.

Konrad 540. Much stronger upper and very similar to the Bravo lower

SlowRyd, what is the dimension you are looking for from the input shaft C/L to the prop shaft C/L?

Yea, that's an awesome effort, but considering I still blew a TRS upper after about 150 hours with 600hp (lowers only lasted 60-80), whereas my Konrad went 430 hours before the lower went (and I'm guessing that's cause I only changed the gear oil twice in 7 years). For me, anything over 550hp will never be in front of a bravo, TRS, or any combo of the two - just no damn fun.

Stay under that 550 or so and this is a great way to get more speed out of a TRS setup, for sure.

It sounds great ,would be alot easier than raising motor and drive on my 23 Daytona no room,,in my 4 inches below bottom,how would a 5 blade cleaver work on a stock trs? 330 Hp,soon to have more. Nice job Ryd

ever figure out how to get it to work with twins?

Only option is a cam change to reverse the engine

I would be inttested in one

Final product. Randy it all summer long without a single issue. I tore it down over the winter for inspection and everything looked great. Also added a nose cone to maybe see if a little more speed. http://i584.photobucket.com/albums/s...316_164635.jpg

Looks great

The finished product is a masterpiece! Not only does it look great, it sounds to be reliable. Did you have a chance to compare the speed with and without the nose cone? Could you post a few more close up photos?

What rpm are you turning and speed? What prop size?

I am interested if you decide to build more. Please keep me posted and safe boating!

problem is almost 20k for a pair to put on what most of these boats are of 20-30k value at their age.

would it be possible to shorten a trs lower to benefit the x dimension? I get that you wouldn't gain any durability but at least performance would be improved.

http://i584.photobucket.com/albums/s...330_181129.jpg
http://i584.photobucket.com/albums/s...330_181129.jpg
http://i584.photobucket.com/albums/s...330_181129.jpg

Haven't had a chance to compare speeds yet. But it has turned a 31 B1 6300

Im sure that is possible just not 100% sure the -4.750 depth is possible. But it can definitely be shortened

any amount would be an improvement even just a couple inches. Would you be willing to take on a project like that or do you know anyone who could? PM if you would like.

That is so impressive! Nice work!!

I cant see how the effort could be justified. TRS lowers are weaker and slower than bravos. AND they are hard to find without damage-rot. Bravos still avail new. AND OP has to re-design this job to do it to the TRS. He already has had success with the bravo. it looks like somewhat skilled labor and rather a lot of it. if you or anybody is gonna pay him to build you a shortie for your TRS, you cant justify not buying a bravo lower to have him start with.

Yes I can shorten a pair of trs lowers but like dereknkathy said I would have to completely retool to do so.

reversing the rotation. yes, you can reverse the engine rotation and turn the borg pump plate to run with it. can a TRS upper run backwards? and the bearing carrier side gear is the reason the right trs lower is the weak link. they made gen 2 alphas like that basically running them in reverse with reverse shimmed up a little better. they never put over 310 hp in front of them them though. there is a whole lot of twin small block gen 1 alpha boats out there. running both props the same way doesn't feel noticeably different. at least not at the speeds most older twin TRS boats are used to seeing. I don't see how two props turning the same way would be a real deal breaker for most peple.

Nice
 

Im almost ready to put my 23 in ,im 3 years behind u,wen u had it without the had steering ,is that why. It was poor handling,or was it the trs. Gearcase,did the nosecone help the trs? Thanks

The gearcase took care of the ill handling issues. The rams made it more stable in the rough water. I wouldn't run a nose cone on a trs lower because of such a low prop shaft depth

I gotta ask,why,cut the water with a sharp tool not a dull one,thanks

best way to explain. Did you ever see a tie down strap start flapping in the wind. Now think about an egg in the wind. It won't ever flap. Air and water are very similar one is just thicker.

that's a good explanation 6.
made me think of this, about 30 seconds

the trs is already a long gear case as it is and adding a nose cone to a lower that is that deep in the water only creates more drag.

As usual I'm late to this party but want to commend SlowRyd sharing a great display of American ingenuity and craftsmanship- cool stuff!

Gearcase
 

Yeah that thing is a beauty

hi. have you decided if you are going to crank some of these out for the general public, and a price and time frame to do these? or is this a hobby-one off? Ooh, just had a thought. Bravo 3 same case essentially. you could re-introduce the Blackhawk...sorta.

I would be willing to build these for people and they will be built on a case by case basis. I would project a 4 to 8 week build time depending on the build. Price will solely depend on options. Anyone that is interested feel free to pm me

Gearcase call me
 

My boat needs one the low drive sucks 631 902 4665

you do realize this is what konrad did. trs upper with bravo lower. used their own housings to update and marry the two.

Not really bud. Konrad has there own drive that they designed as a Konrad 540. They then built a bellhousing helmet to attach it to a trs gimbal. On top of that the only option for lowers is 2 inches shorter than a trs. Mine is 4.750. Also, and I could be wrong here, I do not believe they offer different gear ratios. I understand that my lower isn't for everyone but it does fit and application that I do believe before me there were no other options.

My application is same as yours 23 daytona trs. 9 below =slow
 

Call when u can it would be my best fix for my boat

Trs
 

Ok I give up going bravo how high can I go trs. Is 24 bravo is 22 fiberglass is anything how about 4 below center pod???

Sorry tripps. I just saw this. I will call you in the morning.

Reach out when you can , 985 774 1005