Iskender Kutlucinar
New Member
- Oct 21, 2019
- 6
- Boat Info
- 1985 SeaRay Weekender 300
- Engines
- Twin Crusaders 350 Cu/In, 270 HP each.
Hotter combustion temperatures gives better burn, give you more power, less pollutions. Just make sure both engines run at same temperatures, if you must change the thermostats, temp sensors and maybe the gauges as need iit. Engine temperatures are most important factor for longevity of the engines, second to good oil and ignition timing (such as single grade oil proven brand). Not necessarily synthetic or blend oil! I also recommend an additive called MOA (motor oil additive), not kidding. If anyone have some questions about engines maybe I can advise since I am qualified by SAE and engine designer.I know this is a few month old but; your engines came with 145 thermostats in it because Merc had no idea if the engine was going in a fresh water boat or a salt water boat. Boating on a Lake that never gets above 80 and spending most of my summers in the North Channel in 65 water at hull speed the temp gauges don't usually move above 125. I changed out my thermostats for 165 and the engines liked the warmer temps a lot better. They still only reach about 140 at hull speed but at 3200 they reach 165 in a few minutes.
Regards,
Isken.