12:05 Garage- ’70 Duster build
I've been a little OCD about getting the idle on the car tuned perfectly. I started using some of the advanced idle features to try and smooth it out further. I'm relatively happy with the way it is currently. I don't think it will ever have a flat line for idle due to the lopey camshaft. It does oscillate a little, but I can select a section on the data below and it will average out the numbers. The average RPM is usually within 5RPM of the target RPM. I'll take that as a win. The reason I'm sharing this is because of the red line on the bottom with the two peaks. That's coolant temperature. Since I've gotten this thing running again, I'm blown away how great the cooling system is. This is the same radiator and long block that was in the car previously and the cooling system was never this efficient. Now, I did have a Mezierre water pump before and now I have a stock style, mechanical 8 blade pump. I'm sure it's the pump that has helped and perhaps maybe the EFI helping it run nice and cool. Anyway, let's look at the coolant data. The first peak is at exactly 180 degrees. The temp drops because the thermostat opens. The next peak is at exactly 185 degrees. This is where the computer turns the fans on. Notice it starts coming down again after that. Science bra! I realize most people know this is how it works, but it's neat to actually see the data behind it.
The spikes of the other lines at the first peak is me blipping the throttle. It was just coincidence that it happened at the same time.
I've been a little OCD about getting the idle on the car tuned perfectly. I started using some of the advanced idle features to try and smooth it out further. I'm relatively happy with the way it is currently. I don't think it will ever have a flat line for idle due to the lopey camshaft. It does oscillate a little, but I can select a section on the data below and it will average out the numbers. The average RPM is usually within 5RPM of the target RPM. I'll take that as a win. The reason I'm sharing this is because of the red line on the bottom with the two peaks. That's coolant temperature. Since I've gotten this thing running again, I'm blown away how great the cooling system is. This is the same radiator and long block that was in the car previously and the cooling system was never this efficient. Now, I did have a Mezierre water pump before and now I have a stock style, mechanical 8 blade pump. I'm sure it's the pump that has helped and perhaps maybe the EFI helping it run nice and cool. Anyway, let's look at the coolant data. The first peak is at exactly 180 degrees. The temp drops because the thermostat opens. The next peak is at exactly 185 degrees. This is where the computer turns the fans on. Notice it starts coming down again after that. Science bra! I realize most people know this is how it works, but it's neat to actually see the data behind it.
The spikes of the other lines at the first peak is me blipping the throttle. It was just coincidence that it happened at the same time.