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Not a lot of answers on this thread regarding the type of coolant in these aluminum rads.
No ones got anything to comment about???
Well, for my cars n trucks with brass radiators and heater cores they get ethylene glycol.
The daily driver (PT Cruiser) and Ferrari get the organic based stuff that is supposed to be friendlier to aluminum radiators and cores per the manufacturer's specs.
Well, for my cars n trucks with brass radiators and heater cores they get ethylene glycol.
The daily driver (PT Cruiser) and Ferrari get the organic based stuff that is supposed to be friendlier to aluminum radiators and cores per the manufacturer's specs.
.
Do you mean the Hybrid organic acid technology (HOAT) stuff?
There's a major difference between organic acid technology (OAT) coolants and HOAT coolants. Just trying to be crystal clear lol.
As always, I've been doing some light interweb reading, trying to keep my sanity and common sense about me.
"The main difference is green Prestone is silicate based, versus Zerex G-05, which is HOAT (Hybrid OAT) based. Prestone also makes OAT based coolant, so the differences will depend on the type of Prestone used.
The silicates in green Prestone have a short useful life, and then they begin to separate from the rest of the solution. Once they separate, the inhibitors will stop inhibiting and corrosion will start.
OAT coolants are made without silicates, and they have a longer service life. OAT coolants use different corrosion inhibitors. There are several types of OAT based coolant and the type of inhibitor determines the type of OAT. I used an OAT based coolant with an inhibitor called 2-ethylhexanoic acid (2-EHA) once. Just once. I don’t use anything with 2-EHA anymore. That’s because the one time I used it, was while installing a brand new radiator in a certain red sports car. Within 14 months, the coolant had devoured the new radiator (confirmed by a very good radiator shop). 2-EHA is also known as Dex-Cool, but not all OAT based coolants are Dex-Cool. Some OAT coolants use inhibitors other than 2-EHA.
Zerex G-05 is a HOAT coolant. Hybrid coolants are OAT coolants with a little silicate added. They last a long time and don’t devour engines and cooling systems."
I thought at first I would toss Prestone Extended life in my new motor + radiator... after reading the above... methinks a HOAT coolant would be a better idea.
I had some time this afternoon after work so I worked on doing some test fits. What I discovered was my big 4" radiator is really big! (I already knew that) so the fan does not cover the entire radiator surface. I don't want to cover the part of the radiator that is not covered by the fan as that will restrict airflow when I'm moving. I have gone to enough car shows and have seen other fan conversions that don't cover the entire radiator. The good part about this modification is the fact that the controller is programmable so I can tweak as necessary. Also this fan can really move some air so I'm very optimistic that this will work out fine and keep my engine cool and keep air flowing through the condenser so I can keep my beer cold at an idle.
2 40 amp Bosch relays and a 30 amp breaker mounted on a custom bracket I fabed up for looks. Currently sitting where I may mount it. The small gauge wires you see in the photo is from the controller. I still need to wire up the high current circuit.
I will do more work on it this weekend and finish the brackets and get it spinning.
Wow, it's been awhile since I have been here and since I have done this modification over 7 years ago it's still running strong especially when plowing lots of snow. Unfortunately, the motor has died from too many miles lol but we are building a new 390 for her. I never expected this thread to take off like this lol well talk to you all later
Ha. Well thanks all for the info.
I ended up getting an AL rad, 18x26 AL baking/cookie sheet and a 2in tall Spal 30100400 fan since trying to find stuff for the 4.9/300 that would fit.
So far, driving around in 100deg weather, she hardly hits the N on the scale with a 175 thermostat. Did have to get new hoses.. AL rad wasn't exactly 'direct fit'.
Love it.
This dude right here.
But I got it at 174.00 shipped. Just watch, they frik'n fluctuate the price up and down ever few days lol.
If you do: Lower hose: Gates 21048. No cutting, just bend a bit and go.
Upper hose: Masterpro 21216. Cut to fit. Looks too big on motor side, but works fine clamped well.
Really easy to wire up. The fan can be found for $70 shipped on ebay. Single stage, but.. it's not going to get hotter than 105~ish here. So, this is it. Works great. I'll move around some of these wires.
11-01-2017, 08:23 PM
