Prop size ?

[joker]

Hello everyone I have a 1987 Gulfstream 232 . I bought this Grady it had the original engine 5.7 260 hp merc. In 2014 I had to repower. Bought a 2014 GM marine 5.7 vortex engine rated at 314 hp great engine. My prop size is 14.5 x 17 . With this prop I only get 3300 rpm @ WOT I should be @ 4800 ? Everyone tells me my prop size is too large. If anyone has a Grady of this configuration what prop size are you running would love to experiment with props but no one in my area have an exchange program
Thanks

 

[Rbaskins]

15×15

 

[seasick]

Using the general rule of thumb, reducing the pitch by 2 inches would increase the revs by 400. That would still be out of spec. Are you sure all cylinders are firing?

 

[Ky Grady]

You guys are replying to a 2.5 year old question.

 

[seasick]

You guys are replying to a 2.5 year old question.

I can't remember what I did 15 minutes ago. Am I supposed to remember 2 1/2 years ago?

I should look back and see if I said the same thing.