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Trs upper With a Bravo Lower

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Old 12-10-2015, 06:45 PM
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I am curious as to why? what is the advantage to a TRS upper? What is the advantage to a Bravo lower? Is it because the propshaft on the Bravo is a 1.25" XR shaft?
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Old 12-10-2015, 07:08 PM
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The trs has a strong upper the lower is the weak link,the trs uses angle cut gears in the lower and will break with some power the bravo lower uses straight cut net forged gears and are much stronger,i would think if there were more trs boats still around someone would build some straight cut gears ,billet carrier and 1.25 prop shaft,i don't think there is enough still around for this to happen,a konrad drive is pretty close to that idea
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Old 12-10-2015, 07:12 PM
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Quote:
Originally Posted by abones View Post
Curious what Gear ratio are you running?
It's gonna be 1.68 for now. I'm using what I have from left over crashed drives to get this project started
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Old 12-11-2015, 12:44 AM
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Good idea, I think there are more than you realize.
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Old 12-11-2015, 08:14 AM
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Looks great and a great idea

How do you reverse the rotation?

Mark
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Old 12-11-2015, 08:27 AM
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Looks great and a great idea .
How do you reverse the rotation?

Mark
That's the big issue right now for doing a twin conversion but I'm working at it. On my deal being a single and left steer I'm gonna switch to a left hand prop to make it drive forward in forward gear.
It's kinda screwed up that merc made the lowers different on the trs instead of the uppers as far as left and right goes.
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Old 12-11-2015, 09:33 AM
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Lock it in reverse. Make new gears ?
Great job buddy
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Old 12-11-2015, 10:15 AM
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My twin trs would need a reverse rotation motor. So if your lowers hold up it be worth it . New cam and dist. Gear firing order reversal.
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Old 12-11-2015, 10:19 AM
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I get 100 hours on a right lower and left never goes. Helical cut always pulls teeth. Trs needs straight gears like speedmasters.
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Old 12-25-2015, 07:54 PM
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Quote:
Originally Posted by MrCIG View Post
Looks great and a great idea

How do you reverse the rotation?

Mark
EDIT...
Transmission can not be modified for rotation.
Thanks Marc

http://www.marinemechanic.com/fpdb/B...ers-Manual.pdf
http://www.baadteknik.dk/Manualer/Mo...elvetDrive.pdf

Last edited by Rookie; 12-26-2015 at 11:15 AM.
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