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O2BESOHUGE
01-26-2007, 01:04 PM
Someone Told Me 50 Hours On A Boat Is Equal To 2500 Miles On A Car

Is That About How You Figure It Up?

So My Boat Has 600 Hours...equal To 30,000 Miles On A Car Engine Like It

??

Anyone Know?

Mag_Red
01-26-2007, 01:07 PM
Good question:confused: So 1 hour= 50 miles Some one here will know an answer:)

Leroy
01-26-2007, 01:11 PM
O2B this is always an interesting topic. If you just did 30MPH for 50 hours then you just went 1500 miles. However the RPM's tend to be much higher on a boat doing 30MPH than a car doing 30MPH so generally factor in 2 or more and I normally figure 50 hours is 3-5k miles. If you factor in that some people will run WOT in their boat and almost no one does that in their car and you don't let your car sit for 6 months every year.......

I would say you are close!

bcampbe7
01-26-2007, 01:13 PM
What's the average MPH that your boat has seen?

Hours add up even when sitting in a cover listening to music.

If I had to guess I would say that these boats average about 25MPH over their lifetime. So an average of 25MPH over 600 hours would give you about 15000 miles.

My 2004 GMC Yukon has 1100 hours on it and almost 32000 miles, but you have to consider that the average MPH is higher.

DISCLAIMER:
I am sick so if that math does not work out it is the medicine talking. :D

PendO
01-26-2007, 01:44 PM
Someone Told Me 50 Hours On A Boat Is Equal To 2500 Miles On A Car

Is That About How You Figure It Up?

So My Boat Has 600 Hours...equal To 30,000 Miles On A Car Engine Like It

??

Anyone Know?

congrats on the new boat ... an 89' with 600 hours has just been broken in and is waiting for you to put it to work:) Your boat deserves at least 50 hours of use a year, otherwise it will feel neglected:)

G-man
01-26-2007, 02:10 PM
My ford has 14,000 mile and 400 hrs works out to about 35 miles per engine hour. I agree an 89 with 600 hours has a lot of life in it.

east tx skier
01-26-2007, 02:26 PM
I've got no science, math, or phys. ed. to back this up.

That said, given that your typcial car these days will, assuming proper maintenance, see 200,000 miles or more. The number I've always heard on these boats is, assuming proper maintenance, 2,000 or more hours before a rebuild. I don't think it's too much of a stretch to say that 1 hour = 100 miles.

Your mileage/hourage may vary. 600 hours is nothing. I've got 620 on my 93.

bbeach
01-26-2007, 03:01 PM
My chevy truck has an hour meter... I've got 68K miles on the truck and the hour meter reads just over 2000 hours...

etakk7
01-26-2007, 03:11 PM
I've got no science, math, or phys. ed. to back this up.

That said, given that your typcial car these days will, assuming proper maintenance, see 200,000 miles or more. The number I've always heard on these boats is, assuming proper maintenance, 2,000 or more hours before a rebuild. I don't think it's too much of a stretch to say that 1 hour = 100 miles.

Your mileage/hourage may vary. 600 hours is nothing. I've got 620 on my 93.

Sounds pretty accurate considering you need to change oil every 50 hours or so, which would be the equivalent of every 5000 miles on a car, which most of the newer cars are saying to do I believe.

pilot02
01-26-2007, 03:51 PM
Although at first this sounds plausible I'd highly dispute this logic.
There is no way 50 miles on a car would equal 1 hour on a boat. Think about it! Car's have transmissions and roll on wheels which combined reduce the load on the vehicle once it's moving. Does a boat get a reduction in strain on the engine and drive train at speed? I think NOT!!

Also, there are other factors to consider such as the amount of shock cooling a boat is subjected to whereas a car's temp is more constantly regulated?

east tx skier
01-26-2007, 04:02 PM
If that was in response to my post, I want to reemphasize that I didn't consider any of those things. I also said 1 hr = 100 miles. :)

Harvey
01-26-2007, 04:08 PM
The average driver travels 15000 miles a year. A good figure for yearly use of a boat is 75-100 hours. I always look at it like 15K miles for every hundred hours. Remember engine is under load almost the whole time it is running (idle its not) and that the boat doesn't have to be running to be used.

TMCNo1
01-26-2007, 04:14 PM
If that was in response to my post, I want to reemphasize that I didn't consider any of those things. I also said 1 hr = 100 miles. :)


I can't find it now, but back in the spring of 2006 a fellow TT member (EngineNut? Not Sure) who works for Indmar answered a thread on this subject by saying that Indmar generally used the formula of 100 hours = 10,000 miles for comparison, confirming what I had previously been told by boat dealers and had read in boating magazine articles.

east tx skier
01-26-2007, 04:20 PM
And here I am throwin' darts at a board.

east tx skier
01-26-2007, 04:26 PM
Couldn't find that from engine nut, but found this from jski.

http://www.tmcowners.com/teamtalk/showpost.php?p=102230&postcount=11

airdrew99
01-26-2007, 09:39 PM
My mom has owned two Lincoln Towncars and both have averaged about 30-35mph throughout the life of the car.

JKTX21
01-26-2007, 09:45 PM
I dunno, I think the more important question is how you maintain your truck or boat.

I have 120K miles on my truck, but there's NO WAY IN HELL I'd trade up with my sister who has half the miles on her car. I have piece of mind that my truck will last probably another 100K miles, while her's will probably burn up in 50K miles IF she were to start taking care of it now.

east tx skier
01-26-2007, 10:01 PM
Maintenance is definitely key. The 2,000 hours number I've heard presumes that you follow things pretty close to the book. Baby it, and you could get a lot more. Neglect it, and 1,000 looks dicey.

Chief
01-26-2007, 10:21 PM
Maintenance is definitely key. The 2,000 hours number I've heard presumes that you follow things pretty close to the book. Baby it, and you could get a lot more. Neglect it, and 1,000 looks dicey.

Agree on the maintenance east. If you take care of anything it can last a life time. I believe boats with a closed loop cooling systems could be in the 3000+ range. If you change the oil on time, replace all filters on time, replace timing chains at the first sign of noise and winterize properly then you have no worries, but then again machines are machines: they do break sometimes.

east tx skier
01-27-2007, 11:36 AM
Oh yeah. And where there's water and heat, there's gonna be rust.

O2BESOHUGE
01-27-2007, 01:17 PM
Thanks Guys!

TMCNo1
01-27-2007, 01:48 PM
Thanks Guys!


Don't stop us now, we are all on a roll!:rolleyes: :D

TMCNo1
01-27-2007, 01:50 PM
Oh yeah. And where there's water and heat, there's gonna be rust.


I thought, "Where there is smoke there is fire"????????????????:D

CRAIGTHEMAN
01-27-2007, 05:28 PM
what is the main difference between a automobile engine and a marine engine block....i know that cam is usally different but what is different about the internals?

onelife247365
02-02-2007, 07:49 PM
no difference at all just a car engine that has been marinized. or added cam

Leroy
02-02-2007, 08:14 PM
That was discussed in another thread also.

http://www.tmcowners.com/teamtalk/showthread.php?t=14047&highlight=marine

the legend
02-03-2007, 10:30 AM
100 hrs = 10,000 milesSomeone Told Me 50 Hours On A Boat Is Equal To 2500 Miles On A Car

Is That About How You Figure It Up?

So My Boat Has 600 Hours...equal To 30,000 Miles On A Car Engine Like It

??

Anyone Know?

RJF
05-14-2010, 01:57 PM
I have read around that testing suggests boat engine life is reached at around 1500 to maybe 1700 hours for a gasoline engine. Diesel would be roughtly 4 times more. This is based on a well maintained engine.

Given that I would expect a boat engine to be calculated a factor of 90 to 100 to compare to a cars engine life. My calculation is purely based on an engines life.

I have owned many cars that I run hard, soft and everywhere in between and they still last 135,000 miles plus. If you can't get a boat engine to last this long then maybe the boat engine manufactures just aren't trying hard enough to provide good engines. I wil assume they are doing there best.

vision
05-14-2010, 02:48 PM
I think based on expected longevity, 100 times the hours is a good rough estimate of the "miles" on a well maintained boat engine. Besides how it is run (cruising, pulling, etc), and how it is maintained, consistency of use may also affect engine longevity. Running the boat frequently with less time sitting may extend an engine's life.

That is the excuse I am using to try to get out every weekend.

5280Hawk
05-14-2010, 03:31 PM
3000 hours would be unreal!

at 100 Hours a season, thats 30 Years! and 100 hours a season is tough to get unless its a Resort boat.

06197ttlq9-footer
05-14-2010, 03:32 PM
You can do all the math you want, even get a GPS and track your mileage like a road trip. But miles are not important. What you are looking for is an indication of how long it will last. Properly maintained(Oil change every 50 hours) at the most you will get 2000 hours before you will need to go into the motor( I bet it happens before that mostly) and.....WHEN you do go into the motor it will be because the boat is worth it. It may not be you, you may sell it, but somebody will spend the money to breath new life into the best competition ski boat ever made. I would guess the average MasterCraft owner is lucky to put 50 hours a year on their boat. That's 40 years(time to buy a new boat).

vision
05-14-2010, 06:06 PM
Certainly many factors affect how much use your boat receives. But, 100 hours a season in the warmer climates is not unusual.

My 08 has 320 hours.

woobiedmd
05-14-2010, 06:37 PM
All this talk makes me feel better. I bought an'88 prostar last year with 500 hours. This year at 570 she's still a baby!:)

mccobmd
05-14-2010, 06:42 PM
I get 100 hours on the boat but only about 40 per year with the engine running. But then again, I don't own a tube. Not bashing tubes, just noticed that tubers hang on longer and go harder with speeding up and slowing down. I've always kind of thought watersports are like highway miles, get a speed and keep it is easier than start and stop. (If you get up and stay up that is)

woobiedmd
05-14-2010, 06:48 PM
What are your other 60 hours?

mccobmd
05-14-2010, 07:53 PM
Floating, relaxing, swimming for my 9 year old, resting up for the next set for the rest of us

83SuperSlot
05-14-2010, 09:37 PM
I just bought my boat from the original owner... I ran the motor for 20 minutes and checked the oil and it looked like it was brand new... it showed me that the oil and filter were changed religiously... the boat has over 1200 and is beautiful... I'm taking it for my first water test Sunday... I can't wait!

BTV
05-14-2010, 10:40 PM
Would hours surfing be harder on a boat engine? Not on plane, lots of ballast. We put most of our hours on surfing during the day when its too rough to wakeboard. Should we change oil more than every 50 hours?

Kyle
05-15-2010, 05:52 AM
Would hours surfing be harder on a boat engine? Not on plane, lots of ballast. We put most of our hours on surfing during the day when its too rough to wakeboard. Should we change oil more than every 50 hours?

Not to be an A HOLE but would you change the oil in your truck less than 3000 miles if you towed a trailer and boat weighing 4000 lbs. You have a MC use it and have fun. They will take a likin and keep on tickin. Change every 50 hours and you will be good. Use a quality oil or do maintenance at your dealer. Your engine can take the abuse of ballast.

Imagine this..... I put a 30 ft baja with twins behind my Avalanche the other day and was way over weight for the truck. I never once thought I needed to change the oil or my transmission fluid when I got back.

Kyle
05-15-2010, 06:00 AM
I just bought my boat from the original owner... I ran the motor for 20 minutes and checked the oil and it looked like it was brand new... it showed me that the oil and filter were changed religiously... the boat has over 1200 and is beautiful... I'm taking it for my first water test Sunday... I can't wait!

I would bet if you did a compression test you would be good to go. If someone was that anal about their boat like I am then you should have a great toy.....Enjoy your summer and have a cold one for me.

06197ttlq9-footer
05-17-2010, 12:51 PM
Certainly many factors affect how much use your boat receives. But, 100 hours a season in the warmer climates is not unusual.

My 08 has 320 hours.

I've put over 100 hours on my boat in under 12mo. Probably going to do it this year. We foot all year round.

Thrall
05-17-2010, 02:03 PM
I've put over 100 hours on my boat in under 12mo. Probably going to do it this year. We foot all year round.

Lucky you!..............It snowed here Saturday!

06197ttlq9-footer
05-17-2010, 02:57 PM
Lucky you!..............It snowed here Saturday!

I am amazed at how long it snows in CO. I saw a weather radar the other day, rain covering the entire nation and White over Denver! I was like is that snow!?! It's 85 here! Hang in there dude.

Peace

SunCoast 83
05-17-2010, 09:04 PM
What is the conversion of boat engine hours to comparison to miles on a car???

Thanks

93Prostar190
05-17-2010, 10:20 PM
Good question ... I think some other threads on this site cover that topic .... on cars there are different types of mileage ... for instance you can have 10,000 miles of standard use and also have a car with 10,000 miles of highway driving mostly, and 10,000 miles of city use only.

All 3 scenarios will vary on their load and wear on components ... highway miles are usually the easiest on car engines and other auto components since start/stop driving is more taxing.

So mileage can have different effects ... that said .... how does that relate to boats? well boat use is more rigourous in many respects ...... boats spend more time in the upper RPM range than a car with a tranny and numerous gears .... boat engines tend to also avoid some of the temp extremes on the low side of the scale for lubricants, etc ...

So I think it is hard to compare parallels ..... well enough of my rhetoric ... you probably still want an answer ... in my mind I have always equated 500 hours to 100K miles (that is only in my mind)

My 2008 214 has just under 100 hours ... I tend to put about 50-60 hours a Summer on my ski boat. So in 10 years of owner ship .... around 500-600 hours ..... in car years ...... 10-12K miles per year ........ in ten years .... around 100K miles .... please excuse the loose translation but that is what I think is close.

Please apply all the standard disclaimers .... now back to waxing the hull ...

thatsmrmastercraft
05-18-2010, 12:10 AM
Lets make it more complicated. 100,000 miles on a 1/2 ton truck with a V-8 is different than on a Yugo with half as many cylinders.

With proper maintenance, the engine in your boat will easily last 1000 hours. It will quite likely hit 1500 hours.

You can also count on 150,000 miles from the engine in a modern car or truck with proper care.

My thoughts are 150,000 miles are roughly equivalent to 1500 hours.

FoggyNogginz
05-20-2010, 09:08 PM
We have 470 hours on a 2002! Try to go 4 days/week from May to October during beer season!

frog
07-10-2010, 10:35 PM
I was thinking of this and realized my car has a mile/hours meter.. for my car...
Elapsed Time: 618hr 37min 25sec,Driving distance 17822.9 Miles, Average speed 28.8

kkkeating
07-10-2010, 11:44 PM
During a good period of one season we GPS tracked miles and recorded gas consumed and hours used. We tube, waterski, wakeboard and wakesurf, what I consider an average inboard owner, with 100+ hours per year put on the boat. Average MPH was 9.3. For gas usage, it was 2 miles/gallon. I would of thought the MPH average would of been much higher, but then I noticed there's a lot of low speed usage such as picking up downed waterskiers, tubers, etc, getting people started on waterskis, tubes, etc, going through no wake zones, loading onto trailers, docking, anchoring etc.