Best oil for 509 mercruiser supercharged mild build 787 hp?
05-18-2017, 06:18 PM
#12
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800hp is mild ? Don't let that fool you into running low weight oils.
05-18-2017, 07:57 PM
#14
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I ment that it's a mild build.....only 4.5lbs of boost....but I'm seeing oil temp of 140 deg....maybe 150 max...if I should be running 50 instead of 40 I will do it....just cuious of how big the difference is between the 40 and the 50 weight.....my lake isn't big enough to run this boat WOT fully trimmed....dyno sheet shows 5900rpm 787 hp.....ive seen about 5400 86mph....if I could beat the bag out of this boat everytime I would but realistically I'm not beating the tits off her every ride
05-18-2017, 09:59 PM
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I ment that it's a mild build.....only 4.5lbs of boost....but I'm seeing oil temp of 140 deg....maybe 150 max...if I should be running 50 instead of 40 I will do it....just cuious of how big the difference is between the 40 and the 50 weight.....my lake isn't big enough to run this boat WOT fully trimmed....dyno sheet shows 5900rpm 787 hp.....ive seen about 5400 86mph....if I could beat the bag out of this boat everytime I would but realistically I'm not beating the tits off her every ride
05-19-2017, 07:17 AM
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Oil temp is usually close to the same as water temps....motor does not seem to get that hot....not sure if there is an oil thermostat....I'll have to check
05-19-2017, 09:38 AM
#17
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My oil temps are no where near the same as my water temp!! Are you sure that correct because if thats true mine must be all kinds of jacked up lol.
05-19-2017, 11:15 AM
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