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-   -   Supercharged Engines...Life expectancy (https://www.offshoreonly.com/forums/general-boating-discussion/87609-supercharged-engines-life-expectancy.html)

ActiveFun 09-27-2004 02:57 PM

Re: Supercharged Engines...Life expectancy
 
I dont understand how you guys are getting so many hours. I have a BDS 871 @ 5lbs making about 700 hp. I change the oil every 10-15 hours and had to rebuild at about 250 hours. The motor runs amazing but 700 hours??

WickedWon 09-27-2004 03:22 PM

Re: Supercharged Engines...Life expectancy
 
How many hours ? Man is this thread misleading to some perspective buyer. Blower motor failures are not a result of dirty oil IT'S CYLINDER PRESSURE AND HEAT ! ie. broken pistons and valves, neither of which are lubrication related. If you don't use the boost they last, if you do they don't. It's really that simple.

Tonto 09-27-2004 03:50 PM

Re: Supercharged Engines...Life expectancy
 
You tell 'em big Jim
I hope to get 400+ hrs out of my NEW CHIEF'S, but I also know that ANYTHING can happen. And yes I stay out of the boost most of the time, I just like that fast cruise :D .

Robert

Comanche3Six 09-27-2004 03:53 PM

Re: Supercharged Engines...Life expectancy
 

Originally Posted by Dave M
300 Hrs = 8 seasons for you? Where do you live? I run 75-100 hrs per season. Gladd to hear you are having good luck with your motor.

NJ. I only use it on the weekend, and the most of the good spots are close to where I launch. The boating season is short. The crap weather lasts forever. That's the dish.

thedonz 09-27-2004 03:58 PM

Re: Supercharged Engines...Life expectancy
 
I hear ya Tonto,...nothing like cruising at 70-75 mph only pushing 3500-3800 rpms :D :D

Comanche3Six 09-27-2004 03:58 PM

Re: Supercharged Engines...Life expectancy
 

Originally Posted by WickedWon
How many hours ? Man is this thread misleading to some perspective buyer. Blower motor failures are not a result of dirty oil IT'S CYLINDER PRESSURE AND HEAT ! ie. broken pistons and valves, neither of which are lubrication related. If you don't use the boost they last, if you do they don't. It's really that simple.

Oil isn't just a lubricant, it is a coolant also

Comanche3Six 09-27-2004 04:02 PM

Re: Supercharged Engines...Life expectancy
 

Originally Posted by robyw1
If I built it, it would last 500 hours with no horsepower loss. :)

Roby

You're hired


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