whats the right size prop??????

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fishkiller

Seaman
Joined
Oct 30, 2004
Messages
72
have an 83 75hp chrysler model 758h3f. anyone know where to check for what the original stock prop was? currently have a 19 on it(needs replaced) and moter came with a 'spare' 21 pitch that looks brand new but I was thinking it would be better to go with what the motor came with. thanks :)
 
JB

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: whats the right size prop??????

Check Engine FAQs for Prop Selection, Fishkiller.
 
Realgun

Realgun

Commander
Joined
Jul 31, 2003
Messages
2,484
Re: whats the right size prop??????

Depending on the load the boat is runing you should be using a 17 pitch you really really need to know the rpms you are running at WOT=WIDE OPEN THROTTLE. Because there is an RPM range you need to be in to get the best performance. And I am sorry I don't know the range yours uses.
 
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