Prostar (Powerslot) Engine RPM at 36mph

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Originally Posted by EJ OJPROP

The prop you are running needs to be replaced. A standard 14 X 18 LC 1 1/8" 4-blade should lower the RPM at 36 as well as WOT.

Should be 1:1 (3600rpm to 36 mph)and just because you saw 4800rpms with that prop don't mean your gunna see 48mph. But you will save some wear and some gas.

I had a 1990 ps 190 351 power slot. Sometimes footin in the fall on Telico both spedo's would pick up trash and you have to use the tach to tell what your speed is.

Peace W