I have a Stamas boat that I am in the middle of restoring. It has 2 chevy 350's, with borg warner (sp) tranny's, and v-drives. Anyway, it has standard water pumps to cool the engines, and it had 2 Sherwood pumps to circulate the water to cool the tranny's, and v-drives. First, I am using the boat in Lake Michigan only, the water is very cool year round since it is such a big body of fresh water. I was wondering if there was any recommendation on possibly using 2 electric pumps to circulate the water? If so, what would a good unit be? Second, the transmission coolers were brass, with a honey comb in the center for the ATS fluid to run through, and the water would run on the outside to cool the fluid. Is this a more effective way to cool the fluid than with those expensive brass fitting? Just checking before I spend a few hundred on them to see if a better way to cool my engine and tranny's, in all honestly though, I am more worried about effectiveness than cost.
You would be playing with fire to use electric pumps to cool the transmissions and v drives. I doubt they would put out the volume of cooling water needed to cool them and have enough extra volume just in case. Besides, the raw water pumps also would cool the engines and exhaust systems if they are raw water cooled or they would cool the anti freeze and exhaust and transmissions with heat exchangers and oil coolers. Those transmission coolers should be plumbed into the raw water system using the same water that flows through the engines. Not to mention the reliability of the electric pumps vs engine driven pumps.
