On July 9, 2020 at 6:23 PM, RichF said:

I think one of the responses said the Z-7 is 19'6" but it's not.  It's 18'6. I got a 150 4-stroke merc on it with a 22 or 23 pitch stainless steel prop.  The prop does have a couple small dings but nothing I think would rob performance that much.  We do have one power pole blade on the back which I'm sure doesn't help.  I ended up getting the SE Sport 400 (didn't want to drill into the motor just in case it doesn't fix the problem).  Eventually, I'd like to see how a 4 blade prop does.

Error on my part it's 18'6" whoops.

Tom

1 hour ago, Quarry Man said:

how did you install it? id be nervous drilling through my motor

No big deal, just six 1/4” holes through the anti-cavitation plate. You’re nowhere near any internal gears etc of the motor, can’t hurt anything in the motor drilling through just that section of aluminum. 

Tried the SE Sport 400 this evening and it's a MAJOR improvement. Thanks for the replies BR dudes!

On 7/10/2020 at 9:41 PM, RichF said:

Tried the SE Sport 400 this evening and it's a MAJOR improvement. Thanks for the replies BR dudes!

about to purchase it right now for the same reasons

4 minutes ago, Quarry Man said:

about to purchase it right now for the same reasons

Just an fyi, we lost about 3 mph at top end, which kinda sucks.

36 minutes ago, RichF said:

Just an fyi, we lost about 3 mph at top end, which kinda sucks.

uh oh

 

I only get about 42-45 so far in the few weeks ive had the boat

If the boat is setup properly, it should not loose speed.  The motor I have the SE300 on runs 82 with or without the hydrofoil. 

Motor is problem set too low.  Like I said, I find this to be a very common problem with people trying to run a foil.