I had a set of Q-IV's tweeked over the winter... now the starboard prop blows out when I kick in the blowers..I have to ease into the sticks slowly,... and if I break a wave the starboard blows out....MORE CUP NEEDED ????

Hello Dave,

Is it happening while plannin, cruising or is this at WOT? At what RPM and speed is this occuring? Please feel free to call and we will go over your information and come up with a game plan.

Julie
Throttle Up Propellers
727-531-2255

IM having a problem with the blow out also. Its happends when the boat lays out on plane i have to yank the stick back or it goes from 3000 when i hit plan to 420 as it lays dow with the blow out.
-Mike

I have a 30" QIV for my Fountain. It was labbed a bit to calm down the stern lift. I have to start off with drive and tabs down all the way and go with 1/2 throttle. As I start to pick up speed, 20mph, I start bringing up the tabs. As she starts to blow out, I back off a bit on the throttle and get those tabs up. By this time I'm close to 30 and on my way. But I have to be patient with it, it will get there. But you have a non-step hull, so a QIV is probably not the wheel for that boat. Try Bravo props.

Un i just got a 34 Labbed Bravo1 for the boat because i swapped the 509 for a 572 instead of 650 h.p. im going to with 900 so im going to try that
Mike