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-   -   Lack of Power 1990 VIP (https://www.offshoreonly.com/forums/do-yourself-boating-budget/228820-lack-power-1990-vip.html)

chappjw 04-21-2010 07:24 AM

Lack of Power 1990 VIP
 
I just got a 1990 VIP 18' with Ford 302 and it tops out at 47 MPH. I am happy with the way it runs but it almost drowned me to death trying to pull me up on ski. Is there something I can do to get it to accelerate and plane out faster?

bajabob 04-21-2010 08:19 AM

smaller prop or a 4blade prop you got to run your boat wide open see wt your rpms are . then you will no wt prop to get

Griff 04-21-2010 04:01 PM

More prop blades. A Merc High Five prop will put it on plane in a few seconds.

chappjw 04-21-2010 09:05 PM

Thanks, I will check out the tach nest time I'm out.

chappjw 05-23-2010 08:19 AM

My rpm are at 4400 right where they should be at WOT. Still has trouble pulling me out of the water on ski. The prop I have on is 14 1/2 x 19. Any suggestions?

Donzi Dude 05-23-2010 09:26 AM

Did you try bigger skis?:D
just kidding, we have a 02 21 ft VIP we use for a ski boat with a 5 liter motor and it will pull up 2 grown men turing a 21P 3 blade prop, we turn about 5200 rpm at wot and get about 53mph, you may have a diffrenet gear ratio and need to try a lower pitch prop

NOPUN 05-24-2010 01:40 PM

Get a CHEVY LOL :evilb:

FIXX 05-24-2010 03:39 PM

Fixx
 

Originally Posted by chappjw (Post 3117453)
My rpm are at 4400 right where they should be at WOT. Still has trouble pulling me out of the water on ski. The prop I have on is 14 1/2 x 19. Any suggestions?

I thoughy the 302 should max out @ 5k

wjb21ndtown 05-24-2010 04:13 PM

Cheapest solution seems to be to try a 17 pitch prop.

jtmarten 05-26-2010 07:29 PM

Try a 15p prop, you don't need to to go that fast to ski, just need a great holeshot.


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