4a032 ii hp?

[citizensoldier]

Whats the horsepower of the 4A032 II motor? This is the little apposed 4 banger found on gensets,air compressors,lube trailers and so on.
I am trying to do a conversion to a electric motor and need to get the HP rating and RPM correct..

 

[frodobaggins]

Military rates it at 6hp. It can do more. I think 3600 rpm.

 

[mdlbldrmatt135]

Yep 6 hp, 3600 RPM

 

[M543A2]

I have one on a welder. It definitely is over 6 HP. Google it and you will find info from guys using them on ultralites. If I remember right they are getting 12 to 18 HP.
Regards Marti

 

[Speddmon]

Lane,

I have one in the lube trailer, the military rates it at 6HP at 3600 RPM, but I've seen results in a google search of up toward 20 HP before (since the military under rates the HP output of it's engines).

Keep in mind though, because of the torque characteristics of an electric motor, you probably will not need as large of a motor as you have in the engine...if you replace a 10HP electric motor, you'll want to get at least a 15HP engine because as the load increases an electric motor will create more torque the slower it goes whereas a gasoline engine will only produce torque till you slow the engine down below the maximum torque RPM rating, then the engine will begin to slow way down and stall.

So it's going to be the reverse for an engine to an electric motor, but with the military ratings of their engines, if you got a 6HP electric motor 3600 RPM, you'll probably be good.

 

[frodobaggins]

You're gonna spend a good bit for a 6hp or so electric motor.

 

[citizensoldier]

You're gonna spend a good bit for a 6hp or so electric motor.

I have ways...lol.. We were figuring half the horsepower of the gas motor but keep the same RPM and pulley for the electric.. I think a 3HP on 220 would do the job.. Just for giggles anyone have one for sale? I think its a 1inch shaft but I will double check that..

 

[frodobaggins]

I have ways...lol..

Well hook me up ! I always have needs for electric motors

 

[Speddmon]

Lane, you might want to go with at least a 5HP motor.

HP is HP, no matter the source, electric or internal combustion. The difference as I stated above is the torque curve of the different sources. If the load requires 6 HP, it's going to need a 6 HP motor. The only reason you need a higher HP engine is because of the HP to torque curve of the internal combustion engine.

If you can get the 3 HP motor cheap enough, and have use for it later, if it's not big enough for your current project then go for it. If it were me, I would get at least a 5 HP motor.