what prop due to going from 88 to 115

[surrender]

Old 88 lost two rings and due to my screwing up old block i found a running 115. so i was running a 15 in but what does.everybody thinl i ll need? boat is a17 mckee

 

[dazk14]

Re: what prop due to going from 88 to 115

What year are these motors?

Try to track down a tach. You can use your 15p for a baseline, although I'm a little surprised your not using a 17p on that 88HP rig.

 

[surrender]

Re: what prop due to going from 88 to 115

The 88 is a 1996, the 115 is a 1994. have a tach. Havent run 115 yet, 88 would run 5500-5600 wot. Motor can still be raise one more hole but with the 15 had blowout during tight,upper end speeds. I think i'll try the 17 to start.

 

[emdsapmgr]

Re: what prop due to going from 88 to 115

You will need to go at least one prop size. The 94 115 is a bubble back crossflow-considered sort of a high perf engine, when compared to the old 88. What ever prop you decide on, keep it in the 5600 to 5700 range on that engine. Stainless props have more cup and therefore more bite in the corners than aluminum props.

 

[surrender]

Re: what prop due to going from 88 to 115

So the 115 puts ou that much more hp?. i have a 17 inch prop so i ll basline with that. Sound good