Cooling System

DailyDriverSst · 08-22-2021, 09:21 PM

Finally got my build "done". Went for a 30 mile drive (split in half), 90-98* ambient, and water temps hovered 215-225* with the header on highest setting trying to shed heat.

Iron block, Iron head, Cometic MLS gaskets. Block is half-filled (I asked for 1/4 fill, machinist didn't listen). EFI.

It took 9 minutes for coolant to go from 90* to 212*.

After an hour of cooldown, it went from 245* (heat soak) to 185*.

It took 9 more minutes to go from 185* to 235* then came down to 228*.

It makes 6 pounds of boost at 3000 and 10 pounds at 6000.

I'm going to add a Craig Davies booster pump (9051) in the heater hose line to recirculate with engine off. But is there anything I can do with the primary system?

I'm going to fatten it up a little in the EFI tune and considering adding water-methanol off a RPM switch at 3,000 with a 2GPM nozzle at the blower and 1GPM in the hat.

It has a 180 thermostat with three 1/8" holes, and an AFCO aluminum radiator.

I'm just not sure what else I can do?

08-22-2021, 09:21 PM	#1
DailyDriverSst Junior Member Join Date: Dec 2017 Posts: 53 Likes: 0 Liked 4 Times in 4 Posts	Cooling System Finally got my build "done". Went for a 30 mile drive (split in half), 90-98* ambient, and water temps hovered 215-225* with the header on highest setting trying to shed heat. Iron block, Iron head, Cometic MLS gaskets. Block is half-filled (I asked for 1/4 fill, machinist didn't listen). EFI. It took 9 minutes for coolant to go from 90* to 212. After an hour of cooldown, it went from 245 (heat soak) to 185. It took 9 more minutes to go from 185 to 235* then came down to 228*. It makes 6 pounds of boost at 3000 and 10 pounds at 6000. I'm going to add a Craig Davies booster pump (9051) in the heater hose line to recirculate with engine off. But is there anything I can do with the primary system? I'm going to fatten it up a little in the EFI tune and considering adding water-methanol off a RPM switch at 3,000 with a 2GPM nozzle at the blower and 1GPM in the hat. It has a 180 thermostat with three 1/8" holes, and an AFCO aluminum radiator. I'm just not sure what else I can do?