1981 Caravelle 185 hp WOT 5800..!!!

sandgate

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Jul 4, 2006
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Happy 4th of July all...
First post in a year since changing upper gears 800 stringer..I seem to have forgotten what gear ratio i replaced the original ones with.. it was an 800 stringer without the true course steering so i used the origanal casing..been over a year now and just got her in the water the other day for the first time...1981 caravelle 185hp 305 gm with a 14 1/2 X 19 prop..first boat and first time i've turned a wrench on one...all went well...a little shaky start with the old gas, but once the black smoke and coughing cleared after 5 minutes..runs like a CHAMP..6 hours total now..fingers crossed...anyhow...this is the orginal prop with new upper gears and now WOT is a screaming 5600...son likes the hole shot for wakeboarding..comes up on plane in a few secounds and thottle back to 21 mph at what i think is high at 4000 rpm..op maual says WOT 42-4600...question is...guess i'm under propped now..any suggestions on what size would do for all around best performance..?? Top speed is around 40 mph on guage.. Not 100% sure on my prop size as the bottom fraction number on the prop is unreadable.....thanks for your time..!!!
 

WillyBWright

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Dec 29, 2003
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8,200
Re: 1981 Caravelle 185 hp WOT 5800..!!!

I can't imagine you could get up to 5800 without the motor grenading or floating-out. You might want to check the tach for accuracy. Many timing lights display RPMs. If you don't have one of those, I'll bet you know somebody that does. AutoZone and the like lend tools too.
 

sandgate

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Jul 4, 2006
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Re: 1981 Caravelle 185 hp WOT 5800..!!!

Thought it may be an indication problem..engine doesn't sound like it's turning that fast...actually sounds normal...will check out your suggestion though..apparently it wouldn't touch 4800 prior though...thanks much..!!
 

sandgate

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Jul 4, 2006
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Re: 1981 Caravelle 185 hp WOT 5800..!!!

I installed a set of gears from a 225 hp v8....could this change to what i have now going on...not too covinced as the in-accurate tach reading!!!
 

KaGee

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Aug 14, 2004
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7,069
Re: 1981 Caravelle 185 hp WOT 5800..!!!

Thinking maybe your result would be just the opposite with that gear set, slightly less that max WOT. Sure your donor had the proper gear set to start with?

But Willy suggested the proper thing... verify the tach reading before panicking.
 
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