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Waukesha engine

J

JOB

Member
There is a guy near me that has a early 30's Waukesha stationary power unit engine, model 6srl70e for sale. Does anyone know what the horse power of this engine would be. Or the cubic inches. What would something like this be worth? Thanks for any help
 
Per a 1945 Wauk spec sheet the 6SRL (70E is probably works code for orig eqpmt: carb, ign, etc, and maybe original user if a firm that bought a batch at a time) was a 43/8x51/8, 462cid, 45.9 NACC HP, which I assume (but don't really know) is equivalent to SAE (not Dyno) HP.
Have no idea of value or parts availabliity; Wauk Eng Hist Soc (wehs.me.com) if advised of all info on tag, might be able to pinpoint prod date, orig eqpmt, etc (they have no parts). They're all volunteer, so may not reply immediately.
6SRL and 6SRLR variation also a fairly popular truck engine; your local library should have 50's/60's Motor Truck manual listing many truck installations, altho power unit may differ from truck version. Good luck.
 
FWIW, looking at some taxable vs brake(dyno) HP figures for late 40"s cars, it looks like brake HP at the recommended RPM"s ranges from around 3 to 4 times taxable HP, BUT there are considerable variations, nor do I know if the same ranges would hold true for industrial engines like the Wauk.
 
I never heard of NACC horse power until now. I googled it and found the formular for NACC. My old VP4 Wisconsin is rated the same way. Sounds like everyone used it back it the beginning of engines. Learn something new everyday. Thanks

I did buy that engine, needs the magneto fixed and the clutch freed up and it might be on the road to running.
 
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