Supercharged Engines...Life expectancy
 

I just completed 8 seasons with the same engine. No smoke, knocks, rattles, oil leaks or usage or connecting rods exiting through the oil pan. How about them apples?

Re: Supercharged Engines...Life expectancy
 

Your suppose to crank it and make it run however... :D

Re: Supercharged Engines...Life expectancy
 

I knew I forgot something.

Re: Supercharged Engines...Life expectancy
 

522ci BBC.....300 plus total hours

Re: Supercharged Engines...Life expectancy
 

how much boost, hp? How hard do you run them etc?

Re: Supercharged Engines...Life expectancy
 

4-6 lbs boost...some idling, some full throttle, mostly high speed cruising. A lot of oil and filter changes. No Airplane imitations. Never had a valve cover off.

Re: Supercharged Engines...Life expectancy
 

now that's what I want to hear......now, my two little friends, are you listening?....I am going to feed you a lot of clean oil and oil filters.......stay healthy will ya......

Re: Supercharged Engines...Life expectancy
 

How much HP. What kind of blowers? And did you build them or did you buy them?

Re: Supercharged Engines...Life expectancy
 

This engine was never qualified for horsepower on a dyno. Heres the parts list.
Modified 1150 Dominator.
B&M 250 supercharger
MSD ignition
AFR prepared Merlin Heads
Gil Offshore exhaust
Crane Hydraulic roller cam
pete jackson gear drive
Merlin block
JE pistons
Oliver Billet rods
Moroso Offshore pan
Weston Machine shop handled the machine work.
I assembled and installed. It still idles smoothly at 900rpm and rips up to 5000rpm without a single hiccup.

Re: Supercharged Engines...Life expectancy
 

Parts list sounds great except for the gear drive.

I've never heard of a gear driven timing set-up lasting very long in a marine application.

Harmonics/same rpm @ long duration = short life

Re: Supercharged Engines...Life expectancy
 

I believe the buzz will break a cast cam. The billet cam has no problem with it so far.

Re: Supercharged Engines...Life expectancy
 

7 years on 850 hp. 809 on dyno then head change and added 3.5 lb of boost not a prob. pushing 12,000k .........FOR SALE FRESH. WILL DYNO

Re: Supercharged Engines...Life expectancy
 

Pete Jackson gear drives is about 1 mile from my shop.... I drive past there all the time... I met his older brother "Kong" Jackson... he made hot rod parts back in the 50's... sadly Kong died a couple of years ago....... :( I've always heard there were problems running gear drives... hmmmmmmm. ) I'm glad to hear you've had success with them....... :D

Re: Supercharged Engines...Life expectancy
 

Thats alway been the problem Reed. You California guys always build the best parts. New Jersey guys will show you how to use them.

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That's the key. I have 200+ hours on my whipple charged 502. I change the oil every 20 hours. Zero problems! :cool:

Re: Supercharged Engines...Life expectancy
 

hey Clay Washington how are ya bud(i'm the one that was driveing the dully) how's lake travis doing. i hear it's starting to slow down over there. how r the girls. i loveeeeeeeeeeeeeeeee texas girls gether done

donz jr mike :D :D :D :D

Re: Supercharged Engines...Life expectancy
 

roflmao........... yeah............. right............... :D

Re: Supercharged Engines...Life expectancy
 

575's turned up innner coolers etc, i got 200hrs on em now,,
i think i will have the top ends and blower redone over winter.
want trouble free boating and think that would be a good idea.
your thoughts?
also what should it cost? :eek:
want it to keep runnin like this,,,, :D

Re: Supercharged Engines...Life expectancy
 

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.

Re: Supercharged Engines...Life expectancy
 

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

Roby

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??

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.

Re: Supercharged Engines...Life expectancy
 

Re: Supercharged Engines...Life expectancy
 

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.

Re: Supercharged Engines...Life expectancy
 

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

Re: Supercharged Engines...Life expectancy
 

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

Re: Supercharged Engines...Life expectancy
 

You're hired