Mountune Fiesta ST Radiator Upgrade

[HardBoiledEgg]

It fits like shit yes


That's the world of aftermarket stuff. Mine has been in for over two years and 110k

 

[DaleFredriks]

How many of you guys have shaved the backside of the grill to aid the radiator cooling? Any data showing if that makes any noticeable difference in your coolant temps?

 

[jayrod1980]

I’m not sure about the effects, but I totally hollowed out my grill before I even replaced the radiator. To this day, after a few years, the radiator and intercooler have been the best mods I’ve done to my car. I would overheat all the time in Las Vegas with my huge DHM intercooler. With the Mountune CSC radiator, I never crack 200F on water temps.

 

[DaleFredriks]

Just completed the install in about 3.5 hours with a friend, only thing left is the coolant side. I got 1 gal Motorcraft orange concentrated, 1 gal distilled water, and a 16 oz bottle of rislone Super Coolant. How much of each is needed to get the 40/60 coolant/water mix? Should I pour the full water gal in then top off with the coolant, then add the super coolant after I do the first test drive?

 

[HardBoiledEgg]

I fill with water wetter and water. Top off the system with coolant.

 

[jayrod1980]

Just completed the install in about 3.5 hours with a friend, only thing left is the coolant side. I got 1 gal Motorcraft orange concentrated, 1 gal distilled water, and a 16 oz bottle of rislone Super Coolant. How much of each is needed to get the 40/60 coolant/water mix? Should I pour the full water gal in then top off with the coolant, then add the super coolant after I do the first test drive?

I used some water wetter (the safe kind?) but 75/25 water/coolant. I premixed it so when I went to add more after driving around and burping it, I just put more of the same to top off. You will love this radiator!