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If you don't have oil temp guages, get them. Having the oil heat up and thin out is a major cause of engine failure with this kind of boating. Back off at 260, measured in the pan.
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Syn Oil !!!
Originally Posted by PatriYacht
(Post 3531394)
If you don't have oil temp guages, get them. Having the oil heat up and thin out is a major cause of engine failure with this kind of boating. Back off at 260, measured in the pan.
Probably the hottest part of a motor for motor oil is when the crankcase oil splashes on the bottom of the pistons. A conventional oil is IMO not up to this extreme. I bet if you ask most of the offshore racers on the APBA circuit, they would be running syn oil. It all comes down to an oils ability to prevent shear and prevent metal to metal contact. IMO |
What size and type of engine is the thread starter referring to?
That makes all the difference in the world. |
Just re-read the thread. With 625 horse I wouldn't be worried about floggin it for a long period.
It's like anything else, if you drive it like you stole it, you're gonna have to rebuild it quicker that's all.... higher rpm, higher temps, higher cylinder pressure, inertia, more revs on the valvetrain... etc. etc. = faster wear. |
Originally Posted by SDFever
(Post 3530767)
The real answer to this question is directly related to how fat your wallet is.
Bottom line. Rich guys have spares of everything waiting for a failure and they have guys to do the work for them. Like most things in life, it comes down to money. :party-smiley-004: |
Originally Posted by Flying Tomato
(Post 3528303)
How long will you run wot???????
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What kind of speed are you running in a 24x7 with 625? That motor has to be barely working to push that light ass hull. My buddy has a 25 aggressor which is basicly the same boat and he has a 330 HP and he pegs the limiter every chance he gets for as long as he has too..
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Originally Posted by Mariah212Z
(Post 3531520)
This is the primary reason for a good synthetic motor oil.
Probably the hottest part of a motor for motor oil is when the crankcase oil splashes on the bottom of the pistons. A conventional oil is IMO not up to this extreme. I bet if you ask most of the offshore racers on the APBA circuit, they would be running syn oil. It all comes down to an oils ability to prevent shear and prevent metal to metal contact. IMO |
Originally Posted by POWERPLAY J
(Post 3534116)
Yes and no... when I change mine it comes out looking like I just put it in (every 15-20hrs) I use NAPA and can do it for way less than the synthetics. I don't rely on my fluids. I maintain accordingly.
The topic was in regards to WOT for long periods of time. Unless you are running an oil cooler or even if you are any type of oil breakdown is going to rapidly increase internal wear. Not sure how NAPA oil is going to compare to Amsoil Syn or any other syn. High performance engines require a high performance Syn Oil for High Rpm WOT operation. If you are running Conventional Oil, Yes you better be changing on a regular basis because you can never be sure on the degraded protection around the 20th hour?? IMO conventional oil is only good at best for breakin purposes only, and then switch syn to protect the investment.:drink: |
How fast???
Originally Posted by stlliberator
(Post 3534076)
What kind of speed are you running in a 24x7 with 625? That motor has to be barely working to push that light ass hull. My buddy has a 25 aggressor which is basicly the same boat and he has a 330 HP and he pegs the limiter every chance he gets for as long as he has too..
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