Ok,,,big bravo spline prop shaft. Agree u can use Bravo props.

Let me see u do that on your 43 BT with 800 HP ,,,failure 100%.

The fountain of youth ( RACEBOAT ) is way lighter then most plessure boats.

Everybody says rated @ 800 !!!! By whom ??????

It is nothing else then a new style TRS !!!!!!!!!!!!!! THATS FACT.

Better then reg. Bravo ,,yes,,,newer then TRS and still getting parts ,,yes. comparable to a speedmaster #3,3'a,4.or 5 ABSOLUTLEY NOT !!!!!!!!!

Same with B-max ,,they say its better then any Bravo,,,,the upper yes,but the rest is still a bravo.

Now the ace drive from konrad ( bravo conversion ) yep,,thats a good product,,the 520 and 540 is a TRS replacment,,,nothing more.
Trs was rated @ ~600 maybe the konrad with newer style downshafts is ~ 650 REAL HP ,,thats it.
#3 is 700, #4 is 750, #3'a and 5 is 800 REAL HP RATING !!!!
Can u stick a XR ( Bravo ) on a 1000HP engine ??? , absolutley if u take it easy and know what your doing the thing will live,,,does it make sense ? ,,NO !!!

Get real people !!!!!!!!!!!!!!!!!!

Thanks to all it's been very interesting.

The moral of the story is IM STICKING WITH MERCURY!! F**K that aftermarket junk!!

Thats just an ignorant statement.

The Ace drive IS a 540 with a stand off box to house the tranny. So I guess that the Konrad drive is good after all. Have you ever seen the inside of a Konrad? To say that it is the same as a TRS shows you have no idea what you are talking about. How does Merc come up with their drive specs? How do you think Konrad does? It is not some arbatrary number that they came up with from thin air.

Why don't u post a picture of both internals ,,,so we can see how Konrad came up with there own design and MUCH better parts ?!

TRS/KONRAD is the same thing,,,,,just a newer housing and look.
SLOW & OUT DATED !!!! The SSM drives #3,4,3'a and 5 maybe out dated ,,,but still better and stronger then a konrad.
The nice thing about a konrad is if u have/had a TRS its a perfect fit replacement,,,,altough i think its cheaper and better to replace with a XR or IMCO !!!!!!
If u have a SSM its the best to leave it.
So how did they come up with the HP rating #'s ???????
Show us !!!!!!!!!!
I never said its a bad drive,,,i just said its crazy money for what u get !!!

If u like them .....fine , more power to u !!
But a used Konrad is what 10 K ????? I can get 2 # 5's or ~8 TRS or 4 XR's for that + with XR's i garantie u the boat is ~10MPH faster and about 400 pounds lighter in the stern !,,,see my point !!!
And thats used !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

U know ,,,i run 806 DYNOED HP in my boat ,with a tranny on a #4 big shaft.
How about we do a test ?????? U give me a Konrad with all the bells and wisles, and after i showed u that i slowed the boat down ~ 6-8 MPH and after i blew it up (racing like i do now ) i give it back to u and then we talk.
And please don't tell me i have 6 HP to much !?

I will take Dollars word for it thanks. They loved the 3a to Konrad conversion and said it was a huge success, as did a person earlier in the thread that actually did it. But hey what do they know, certainly not as much as you, some one who has obviously never seen the drive or knows what is in it..

So u say ,,,,,a 3a is not stronger then a Konrad ????

And you are correct ,,what do i know .LOL

U know i had people telling me jumping out of an airplane is cool and they liked it,,,would i do it ? NO ,,but what do i know.


By the way ,,,i am willing to learn,,,show me pictures of the parts ( TRS / Konrad ) !!
Later

I will get them next time I have time. I am not saying stronger but you indicate the same strength they according to you are both rated for 800 hp! Bearings are way larger, shafts all larger, case is thicker and more ridged, better oiling system, larger universals, better transom assembly......

Like I said of the many many many drives that they have sold they have very few failures. I have seen Kurt run his to the matt for LONG stretches in rough water and he is running 750 hp and has never blown a drive. There are aplications out there with well over 1000hp hooked up to these things. I know of a new aplications from a board memeber that will be almost 1300hp, it will be interesting to see how it goes with that. There are peole blowing up #3's, #4's and even #6 drives all the time, does that make them bad drives? How often has Mercury offered to come and drive your boat to help set it up? Konrad went to this guys house and helped him out with his boat, seems like very good customer service to me.

I have pictures...