454 Crusader Performance

DjPro

Seaman
Joined
Sep 8, 2003
Messages
66
Is there anyway to improve performance on twin 454 crusaders? Boat is a Tiara 3100 1988. The boat currently tops out at 30 knots. Can any modifactions be made to improve the speed without reducing low end or out of the hole speed?
 

Boomyal

Supreme Mariner
Joined
Aug 16, 2003
Messages
12,072
Re: 454 Crusader Performance

What is your rpm at current WOT? and what is the redline for your engines. You're shootin in the dark w/o this info.
 

snapperbait

Vice Admiral
Joined
Aug 20, 2002
Messages
5,754
Re: 454 Crusader Performance

Tiara 3100 is a beautiful, well built, and heavy cruiser... <br /><br />Spent my day in the engine compartment of a 3100 Tiara with twin 454/350hp crusaders, mostly cursing at the engine mounted fuel filters.. <br /><br /> Anywhooo... Top's 30 knots @ 4400rpm.. Thats right where it should be, and thats about all you'll ever get out of it without some very major engine mods, or upgrading to diesels.... With all of that comes the need for new props, shafts, and other equipment.. It adds up $$$$ quickly... Too much HP can snap a shaft, which is not pretty... <br /><br />My advice... Keep the bottom clean, keep the engines tuned, cruise at 20 knots and be happy.... Whats the big hurry anyway... :D
 
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