SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: jnorton on October 11, 2008, 09:55:28 AM
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hey guys new to the site just bought a new boat 19 ft daytona mini day cruiser it has a zz 4 small block need 2 know what weight oil 2 run royal purple brand and should i run a oil stablizer like lucas any help would be great
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I run Valvoline VR1 20-50 racing oil. No stabilizer. Welcome to the site. Pics?
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hey guys new to the site just bought a new boat 19 ft daytona mini day cruiser it has a zz 4 small block need 2 know what weight oil 2 run royal purple brand and should i run a oil stablizer like lucas any help would be great
Hey jnorton, welcome to the site, is your ZZ4 stock? if so run a 5w-30 synthetic, should work out fine, we normally run Amsoils 0W-30 Racing in our SBC that has a hydraulic roller, seems to be a good choice...Do you have an oil cooler or at least a large pan?
Good luck
GT
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stock crate motor full roller dont know how to post pic having problems
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no oil cooler and i dont know about the pan is it the thickness of the oil i should be woried about for the bearings or is it the breakdown of the oil i should be woried about 5 w 30 and 20 w 50 thats a big diffrence in oil isnt it any help alot of questions on a lame subject but dont want to screw up the motor thanks
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i use the r/p 20/50 in my race boat and the oil temp is about 250 when we shut it down. the oil pressure stays good, my bearing clearances are probably looser than yours ???
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The problem we have experienced with the ZZ4 is the higher viscosity oils tend to pump the lifters up and they run too much oil pressure for my taste, small blocks don't need a lot of volume or flow, as long as there is 40-50 PSI at speed you should be fine, the reason for the larger oil pans and/or an oil cooler is with smaller capacities the oil goes around quite a few times with nothing to cool it down (just gets hotter) with a larger pan and more oil the oil makes fewer trips around and takes more heat, the synthetic will help this, the added bonus of a larger pan is reduced windage (foaming) and less likely to suck the pan dry resulting in a loss of oil pressure.
In 1997 we ran a ZZ4 for 40 min. at 6100 RPM with no problems (WW jetboat), the oil temp got to about 295 degrees (guage only went to 325*) and still had 40 pounds of oil pressure, so they will take a lot, had it not been synthetic oil, I'm sure the results would have been less favorable.
I don't like addatives, especially with synthetic, if anything, run a product proven to be compatible with synthetics...
Good luck...BTW where are the pics of this badboy?
GT
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so 20 50 any synthetic oil brand is best choice
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82 daytona
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The syn vs dino debate could go on forever. If you have high oil temps(like GT said) synthetic is best.
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82 daytona
i need more pics ;D we all love pics here ;D ;D
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02 daytona
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nice pic and very cool ride!
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thanks nathan72 for the help
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so 20 50 any synthetic oil brand is best choice
IMO I think thats too high, I would say at the highest 10W-40, just my opinion though...These things are capable of utilizing 65# oil pressures, but have never seen one do it...BTW if you ever have to tear into it, pick up the "hot cam", that thing will wake up scared...I use Amsoil only because I am a dealer....
GT
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bought it from a good friend 4500 super clean boat and runs pretty good going to put blower on over the winter hopefully
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thanks for the help on the oil how much is the amsoil a qt
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82 daytons
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thanks for the help on the oil how much is the amsoil a qt
PM sent
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that boat is the same asmy buddies, but his is an open bow...i love them daytonas
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thats the first bow rider i have seen is it a retro fit it looks cool
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The syn vs dino debate could go on forever. If you have high oil temps(like GT said) synthetic is best.
this is the only reason i switched
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Nice ride! welcome ;D ;D ;D
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that boat is the same asmy buddies, but his is an open bow...i love them daytonas
if you mean by retro fit that it started its life as a closed bow then went to a shope to have this done then yes...