105 chrysler - how fast?

fishinrado

Petty Officer 2nd Class
Joined
Nov 8, 2006
Messages
137
have the above 78 motor in great running condition (so far) mounted on a 1975 or so fiberglass crestliner v-hull. re-mounted the pitot after cleaning it out by forcing water through it using a small kids medicine srynge. fits the plastic tube perfectly! had it out last night. read 32 tops on the speedometer. sound right or close to right? what is the needed speed to pull an adult waterskier??? thanks, oh boating masters...........
 

Racer

Cadet
Joined
Jun 21, 2007
Messages
23
Re: 105 chrysler - how fast?

The speed sounds close.

My dad had a 70hp chrysler on a 15' tri-hull and it topped at 29-30. It would pull 2 adult skiiers out of the water without too much trouble. I think you should be fine pulling a skiier.
 

QuadManiac

Petty Officer 1st Class
Joined
Jul 2, 2007
Messages
391
Re: 105 chrysler - how fast?

get or borrow someones GPS to verify. Pitot speedos are famously inaccurate.
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: 105 chrysler - how fast?

If you have the option, play around with props. You might squeeze 2 or 3 MPH more. You can pull a skier out on two skis, but deepwatering a slalom skier might be a little dicey. You will need an experienced skier to get out. You have plenty of speed for skiing: you need about 22 mph; 18 for wakeboarding. And definitely buy a tube.
Also, I forgot to mention: Play around with the tilt pin if you do not have power tilt and trim. The optimal setting is to have the cavitation plate parallel and even with the bottom of the boat. You may even be able to raise the engine on the transom by one inch. Those mid-legs were 1 inch longer than the later Chrysler and Force one piece lower unit midlegs. Tilt one pin closer to the transom to pop out a skier--not necessary with a wakeboard.

If you can scratch up props, (Try The Chrysler Crew) you would want a 13 X 17 for skiing for hole shot and popping out skier and a 13 X 19 for general use and top end. If you absolutely can not find a 13 X 17, I have one with a few dings in it. It is serviceable now but should be repaired. So if you need to talk about it contact TonyonMemory@yahoo.com
 
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