13hp Predator (420cc)
- Thread starter DoonerFunderburk
- Start date
- Tags 13hp 420cc predator
:shrug:
I was just mainly curious about it. I read one thread where I guy took his engine (dont remember the hp) and modded it up with some performance parts and it dynoed at 9hp when he was done. wouldn't it have been cheaper to start with a 13hp engine and possibly get 20hp from it? You see what I am getting at? What is the benfit of not starting with the higher hp engine? :shrug: 
Harbor Freight use to list it at 16hp. Loncin who is the manufacturer lists it at 15hp.
15 Horse power series£ºG420F/G420FD - Loncin lndustries
Duromax blue 420cc ones are 15/16hp as well.
Harbor Freight lists it as a REPLACEMENT for 13hp engines.
15 Horse power series£ºG420F/G420FD - Loncin lndustries
Duromax blue 420cc ones are 15/16hp as well.
Harbor Freight lists it as a REPLACEMENT for 13hp engines.
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@RMM,
Not trying to argue, but Honda lists its 390 cc as net 11 hp.
Honda Power Equipment: Honda Generators, Lawn Mowers, Snowblowers, Tillers
@All
Not to steal the thread, but does anyone make a flywheel that can handle higher RPM's and still be able to use the Honda 20 amp charging system? :shrug: I don't care about racing, I would like to build a fat tire bike around the 420 Predator, add on the Honda 20 amp charging system (cheaper to do this than buy the Honda 390 with the charging system) and get additional performance out of it. The only problem is that the couple of places I have looked at performance parts for the 420 cc engine do not have flywheels that can be used with a charging system (I guess because most people building up these engines want to race them). I'd like to be able to keep the starter, run lights and have a 12V outlet. Not looking for 10K rpm capability, but getting to 5K or 7K rpm would be about what I would be looking for.
Paul
Not trying to argue, but Honda lists its 390 cc as net 11 hp.
Honda Power Equipment: Honda Generators, Lawn Mowers, Snowblowers, Tillers
@All
Not to steal the thread, but does anyone make a flywheel that can handle higher RPM's and still be able to use the Honda 20 amp charging system? :shrug: I don't care about racing, I would like to build a fat tire bike around the 420 Predator, add on the Honda 20 amp charging system (cheaper to do this than buy the Honda 390 with the charging system) and get additional performance out of it. The only problem is that the couple of places I have looked at performance parts for the 420 cc engine do not have flywheels that can be used with a charging system (I guess because most people building up these engines want to race them). I'd like to be able to keep the starter, run lights and have a 12V outlet. Not looking for 10K rpm capability, but getting to 5K or 7K rpm would be about what I would be looking for.
Paul
rmm727- Gotcha. Thanks for the info. I did notice that at HF the shelf tag showed the 212cc as 7hp instead of the advertised 6.5hp. And my kids have a go kart with a Subaru 169cc and it says it is 6.5hp. Doesn't seem like there is a hp standard on these little power plants.
texasfabguy- Have You seen anyone that has added the magnets to the billet flywheel? Or is there anywhere that tells how to add them? I was wondering the same thing as paul_probus.
texasfabguy- Have You seen anyone that has added the magnets to the billet flywheel? Or is there anywhere that tells how to add them? I was wondering the same thing as paul_probus.
Tex,
My biggest concern with adding them myself is balance. Wouldn't that throw them out of balance? Also, being ignorant of how they're attached, would it be possible to attach them so that they stand up to the higher RPM's? I would even be OK with one of the billet flywheel suppliers attaching them for me and re-balancing the flywheel, if they're willing to do that (obviously at an additional cost). I am just not sure any of the suppliers would do that. :shrug:
Paul
My biggest concern with adding them myself is balance. Wouldn't that throw them out of balance? Also, being ignorant of how they're attached, would it be possible to attach them so that they stand up to the higher RPM's? I would even be OK with one of the billet flywheel suppliers attaching them for me and re-balancing the flywheel, if they're willing to do that (obviously at an additional cost). I am just not sure any of the suppliers would do that. :shrug:
Paul