prop question

[posfit]

I'm new to boats and I have a question. The gear I have right now I have is:

25 in. El Lobo
Fiego 7L
Castle 80
12000 MAH 7.4 Li Po

I put this info into a calculator I found (on here I think) and it said that an Octura X445 would give me a HOT ESC but 34 MPH and 5 Min run time (I know not to use this set up) But, if I used and X632, I would have no heat problems, 34 MPH and 12 min. run time. Does this sound right? (what is the difference?) And If so, how can I get a 3/16 in. prop to fit a 1/8 in shaft?


Thanks for any info.

[BoatDoc]

to fit the prop you can get a piece of brass tubing that will slide onto the shaft and then the prop will slide over that. i'm in the middle of setting one of those hulls up right now. using nemesis 8s, castle 80 and fuller's hardware. you might want a better battery, as 1200's aren't that good. i can't look at the #'s in FEcalc because i don't have that motor in my version. i'd start with the 632, or 432 and work up from there.