575 SCI rebuild
#13
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Joined: Aug 2015
Posts: 12
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I went .030, cleaned head and deck, 525 roller cam(I think), Super Chiller w/slightly smaller pully, stock fuel system, stock MEFI
Cam I .610/298* E .632/306*
Press fit pins and cast iron heads
Stock oil cooler
703HP@5372 740TQ@4100
4# boost
92 octane
Ed Trihey @ Ed's Automotive assembled/dynod them
310 hours and still run the same based on top speed of boat hasn't lessened.
WOT oil pressure 38PSI@170F@5350RPM for 10 minutes+ freaked me out but 310 hours later I guess it works and it's easier on the distributor gear.
Cam I .610/298* E .632/306*
Press fit pins and cast iron heads
Stock oil cooler
703HP@5372 740TQ@4100
4# boost
92 octane
Ed Trihey @ Ed's Automotive assembled/dynod them
310 hours and still run the same based on top speed of boat hasn't lessened.
WOT oil pressure 38PSI@170F@5350RPM for 10 minutes+ freaked me out but 310 hours later I guess it works and it's easier on the distributor gear.
#14
Kendall 20-50, Wix and/or Quicksilver filters, 160-170max oil temp w/stock cooler.
Water pressure is 12-18# on one engine and 16-22# on the other.
What kind of temps are created just by pumping oil at higher pressure? Not to mention heat created at the cam/dis gears from the extra work load.
Low pressures and temps, and high hours must mean good flow.
Hey, whatever works.






