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Paragon Manual Gearbox HP rating

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SpeedDemon651
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Joined: Mon Jun 18, 2018 6:16 am

Paragon Manual Gearbox HP rating

Post by SpeedDemon651 » Tue Jun 19, 2018 8:10 am

I was curious if anyone knows what the Paragon manual gear box is rated for HP wise ?

Typically mated up behind a 283, I'm told they are pretty bullet proof but was wondering what HP they would hold or is the week link with this setup, it's matting to the crankshaft via a key way ?

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drrot
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Re: Paragon Manual Gearbox HP rating

Post by drrot » Tue Jun 19, 2018 8:14 am

I don't have an exact number but I see them in Jersey Skiffs that put out some serious power.
Jim Staib
www.finewoodboats.com

1931 Chris-Craft 26' #898 http://www.finewoodboats.com/1929%20Chris26.htm
1929 Chris-Craft 28' #3107 http://www.finewoodboats.com/1929%20Chris28.htm
1947 Penn Yan 12' Cartopper WXH474611
1950 Chris-Craft 22' Sportsman U-22-1532
1957 Chris-Craft 26' Sea Skiff SK-26-515
1968 Century 17' Resorter FG-68-174

SpeedDemon651
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Re: Paragon Manual Gearbox HP rating

Post by SpeedDemon651 » Tue Jun 19, 2018 8:31 am

Your totally right. I forgot that they typically run these.

davidvn
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Re: Paragon Manual Gearbox HP rating

Post by davidvn » Wed Jun 20, 2018 12:55 am

When we use this transmission on engines of higher power than the original 185 hp we add an extra steel and bronze plate. This increases the surface area making it less likely to slip and reduces the shifting effort to put the transmission in gear. Anyone interested in our technique please feel free to contact us.

SpeedDemon651
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Re: Paragon Manual Gearbox HP rating

Post by SpeedDemon651 » Wed Jun 20, 2018 5:18 am

davidvn wrote:
Wed Jun 20, 2018 12:55 am
When we use this transmission on engines of higher power than the original 185 hp we add an extra steel and bronze plate. This increases the surface area making it less likely to slip and reduces the shifting effort to put the transmission in gear. Anyone interested in our technique please feel free to contact us.
I'd be interested in seeing how that is done, do you have any pictures of how its modified ?

Thanks JWH

jim g
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Re: Paragon Manual Gearbox HP rating

Post by jim g » Wed Jun 20, 2018 10:39 pm

The stock Paragon 25XE manual gearbox will handle up to a stock 350 which is around 270hp at the crank. Anymore then this you should have the drum machined out to add another set of plates.

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