Evans Coolant Temps

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Some get their panties all in a bunch so just making sure!! I did the same as your doing and ditched the Evans. I would try the 50/50 60/40 70/30 or which ever ratio you choose first and see what happens.


It’s NOT the Evans. Bet on that. You could run 100% straight antifreeze and the thing shouldn't overheat.

Just plain rediculous to blame the coolant. Why Evans is saying that, I can’t say. But I called Evans BEFORE I bought one part for my cooling system. I run 11.28:1 compression on pump gas on iron heads without detonation. Going to 11.6ish:1 when the head gaskets get here, and don’t expect issues. One reason I can run the CR that high is my coolant NEVER goes over 175, on Evans.
 
It’s NOT the Evans. Bet on that. You could run 100% straight antifreeze and the thing shouldn't overheat.

Just plain rediculous to blame the coolant. Why Evans is saying that, I can’t say. But I called Evans BEFORE I bought one part for my cooling system. I run 11.28:1 compression on pump gas on iron heads without detonation. Going to 11.6ish:1 when the head gaskets get here, and don’t expect issues. One reason I can run the CR that high is my coolant NEVER goes over 175, on Evans.

I like how your going on a tangent when the company themselves are telling me to go with a water/coolant blend and refunding my purchase. I've done everything they've asked and this is their latest request. Also I called BEFORE, DURING AND AFTER I purchased their product and purchased the supporting items they requested like a high volume water pump. I don't know what skin you have in this more than they do but cool your tits man.
 
True but I also don’t want to have to deal with what I’ll have to go through to get the 340 in my dads old bracket race car up and running. Took the rad cab off and just solid chalky calcium build up. Put the cap back on and went back to working on my dart lol.
The water pump lube is soluble oil it mixes with water, nothing will corrode in the cooling system. If you want to be super safe put two bottles in. I buy it at ACE hardware for $3 a bottle. I have put in every vehicle I have owned for the last 25 years,
 
The water pump lube is soluble oil it mixes with water, nothing will corrode in the cooling system. If you want to be super safe put two bottles in. I buy it at ACE hardware for $3 a bottle. I have put in every vehicle I have owned for the last 25 years,

If I had to guess the car had some hose water put in it at the track last time it was out...over 20 years ago. One of those deals where he would change it out next weekend but then life gets in the way. Once the dart is right that’s on the lift next.
 
I like how your going on a tangent when the company themselves are telling me to go with a water/coolant blend and refunding my purchase. I've done everything they've asked and this is their latest request. Also I called BEFORE, DURING AND AFTER I purchased their product and purchased the supporting items they requested like a high volume water pump. I don't know what skin you have in this more than they do but cool your tits man.


That wasn’t directed at you. But it’s not the coolant. You can believe it, but it’s NOT. It should cool with straight antifreeze and that’s not a coolant either.

What I’m saying is IF you have a high flow water pump and IF you are turning the water pump cranks speed or faster and it’s not cooling, it’s the radiator. Not the coolant. Not the fan.

That’s what I’m saying, and now I’m done saying it. You can continue to screw around or you can fix it. Buy the biggest radiator that fits the car without cutting it up, with 2 rows at least 1 inch and IF you don’t make more than 750 HP it WILL cool it.

Or not. You can chose to learn, or listen to people who are telling you straight bullshit. And that includes Evans.


I’m out. Do what you want.
 
Was probably directed at me. I’m not saying it’s totally the coolant, what I’ve been saying all along is that if the cooling system is just adequate with water adding Evans is going to require it to be more than adequate. This may or may not be the case here. Easy enough to switch back to regular coolant and see what happens before dumping more money into a new radiator.

Personally I don’t think the high flow water pump will hurt anything.
 
That wasn’t directed at you. But it’s not the coolant. You can believe it, but it’s NOT. It should cool with straight antifreeze and that’s not a coolant either.

What I’m saying is IF you have a high flow water pump and IF you are turning the water pump cranks speed or faster and it’s not cooling, it’s the radiator. Not the coolant. Not the fan.

That’s what I’m saying, and now I’m done saying it. You can continue to screw around or you can fix it. Buy the biggest radiator that fits the car without cutting it up, with 2 rows at least 1 inch and IF you don’t make more than 750 HP it WILL cool it.

Or not. You can chose to learn, or listen to people who are telling you straight bullshit. And that includes Evans.


I’m out. Do what you want.


You seem to be the biggest Evans defender but don't even follow their recommendations for radiators which i've included below for your benefit. Seems like they're are a lot of folks in the big block section talking about how great their cooling system is on their small blocks. Until you have put a RB in an Abody you don't realize just how much room that motor takes. Evans seems like a fine solution for those that are able to over radiator their car but guys like me who are tight on space and are borderline cooling it, it just won't work and thats what they even say on their own site. I've worked with the lead tech guy for weeks now and even he is suggesting water so again not sure what your stake in this is but I feel like i learned what Evans can and cannot and will be getting a full refund from them. Can't really complain just sucks it didn't work in my set up.

300HP or less without AC........................4 rows: ½” tube copper/brass
300HP to 400HP with AC........................2 rows: 1” tube aluminum
400HP to 600HP.......................................2 rows: 1.25” tube, aluminum
600HP and above.....................................3 rows: 1” tube aluminum
OR 2 rows: 1.5” tube aluminum
 
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Was probably directed at me. I’m not saying it’s totally the coolant, what I’ve been saying all along is that if the cooling system is just adequate with water adding Evans is going to require it to be more than adequate. This may or may not be the case here. Easy enough to switch back to regular coolant and see what happens before dumping more money into a new radiator.

Personally I don’t think the high flow water pump will hurt anything.

Right and Cold Case didn't even want to sell me a rad until I tried a 50/50 mix, seem like good guys there too. They also brought up another potential factor which is my EFI install and motor are new. Both with under 2 hours of run time with maybe 20 miles on them. Cold Case said they have seen set ups run hotter while the EFI figures itself out. So if 50/50 gets me to the point I can cruise around and enjoy my car I'll me more than happy to do a drain and fill every 3 years.
 
Been a month or so and wanted to document where I’m at and have learned through this whole thing in case someone finds this years from now.

Evans provided me a full refund for 5 gal of coolant even tho I was only able to recover 3 gal from my system. They also refunded the reflectometer I purchased as well. All they asked was for a copy of the invoice from Summit and sent me a check a day later.

I tried 50/50 and while temps did kinda lower (220) they were still higher than I felt comfortable with. So I took the money I got back from Evans and ordered a 26” radiator for a B/E body from Cold Case. The only modifications I had to make whether 2, 1/4” holes in the rad support and 2, 1/4” holes in the radiator. I nut and bolted the radiator through those holes.

Now the reason for the 26” wasn’t for any increase in coolant or air flow over a radiator space (hence why I didn’t go hog wild cutting the rad support up). The man goal was more room for fans. As has been discussed even the 22” rad I had was able to cool the motor down it was the fans that were too weak. So now that I have a 26” rad I was able to put 2 12” fans pulling. I’m using Spal “medium” depth fans that are rated for 1200cfm each. For comparison the old 10” fans I had were no name ones that came with the rad and were rated for 800 but that was questionable.

180 degree thermostat, still have the high flow water pump but mainly because I figured it was already installed and not leaking so I didn’t want to mess with it. I’ve sat in the shop for 20 min and with no external air flow over the motor and it settles in at 190. It was mid 80s and stupid humid the day of the test.

Needless to say I’m very happy now and honestly had I know that I didn’t have to cut up the car to get the advantage of a 26” I would have done it from day one.
 
So the coolant wasn’t the problem from day 1? Kim
Coolant wasn’t the problem but didn’t help. 50/50 brought the temps down but not enough for me to be happy.

Evans was good to work with as a company. But even they say you will see an increase in temperatures in OEM set up (read just enough cooling ability) and should over build if you want the same temps as you see with 50/50. My problem really came down to no room for more powerful fans to keep temps in check at idle.
 
Coolant wasn’t the problem but didn’t help. 50/50 brought the temps down but not enough for me to be happy.

Evans was good to work with as a company. But even they say you will see an increase in temperatures in OEM set up (read just enough cooling ability) and should over build if you want the same temps as you see with 50/50. My problem really came down to no room for more powerful fans to keep temps in check at idle.


Evans is meant to work with a cooling system that can handle the job. It’s not a miracle cure.

I’m pretty sure I said the same thing earlier in this thread and the Evans was not the issue. I’d be everything I have if you put Evans in it right now, the temperature wouldn’t go up 1 degree.

EDIT: see post 155.
 
Thanks for the update & glad that you got it sorted out. Its good to hear that Evans made it good for you, not everybody will do that.
 
....yes...?
Glad you got it figured. My set up with the ECP 2 row with 2 12" paddle fans(3300cfm total) and a electric PRP 35gallon pump are not cooling my filled 511. I'm gonna try the bigger meziere pump. Think its 44gallon pump. This combo will cool very good with milodon mechanical pump with 17" flexfan and shroud. My problem is cooling at speed only. Idle cooling no problem.
 
My 68 Dart I have a 505 , Edelbrock RPM heads, hi flow 440 Source water pump , 180 degree thermostat 26" BeCool radiator 2 row , flex fan and shroud , 90s degree temps outside it will get as high as 190 195 sitting in traffic start moving back down to 180 , 185 . Had the same set up in my 71 GTX with a 515 Except it was a Champion radiator ,same temps. With a steel fan it would cool even better. I am not a fan of electric fans unless there is not room for a manual fan and shrouds on either are a must. 50/50 is all i will run all the other crap out there i have tried with poor results for the money spent.
 
My 68 Dart I have a 505 , Edelbrock RPM heads, hi flow 440 Source water pump , 180 degree thermostat 26" BeCool radiator 2 row , flex fan and shroud , 90s degree temps outside it will get as high as 190 195 sitting in traffic start moving back down to 180 , 185 . Had the same set up in my 71 GTX with a 515 Except it was a Champion radiator ,same temps. With a steel fan it would cool even better. I am not a fan of electric fans unless there is not room for a manual fan and shrouds on either are a must. 50/50 is all i will run all the other crap out there i have tried with poor results for the money spent.
Nice
Lose that flex fan for an 18 inch mopar fan and you will run cooler.
 
My 68 Dart I have a 505 , Edelbrock RPM heads, hi flow 440 Source water pump , 180 degree thermostat 26" BeCool radiator 2 row , flex fan and shroud , 90s degree temps outside it will get as high as 190 195 sitting in traffic start moving back down to 180 , 185 . Had the same set up in my 71 GTX with a 515 Except it was a Champion radiator ,same temps. With a steel fan it would cool even better. I am not a fan of electric fans unless there is not room for a manual fan and shrouds on either are a must. 50/50 is all i will run all the other crap out there i have tried with poor results for the money spent.
I will make one more attempt to make the electric fans/water pump cool the 511 with the bigger pump. If that dont work, i will go back to the flex fan/shroud and milodon mech pump.
 
I will make one more attempt to make the electric fans/water pump cool the 511 with the bigger pump. If that dont work, i will go back to the flex fan/shroud and milodon mech pump.
Read post #169
 
Read post #169
Yes, i read that post and had same results. Flex fans with shroud and mechanical pumps cool real nice. I know that. They do cost hp thou. Electric components for cooling are not easy to make work. I'm trying to cool it with electric components to get all the power i can to the rear wheels. Currently running 10.06@134 with a street car. Going into the 9's soon.
 
I to am using Evans Coolant, have a slightly built 318, have a 22" Champion 3 core alum. radiator, stock 5 blade none clutch mopar fan blade, with shroud , have a 180 degree thermostat, running a 16 lb cab on the radiator, only have about 150 miles on the engine, drove it a few time last year, Novermber was the last time to shop for State inspection, parked in garage over the winter, first time drove Sunday 6/28/20 , took to filled up gas tank, took short drive watching gauges as normal, temp was around 185 degree , as i pull into my drive way seen some steam from under hood, pulled into garage, had anifreeze 'Evans coolant ' coming out of the overflow bottle, did not have any type of problem last year and did not touch any thing since then, i am thinking maybe the 16 lb cap on rad is to low ? the temp. on the gauge in car was normal, it was very hot here on Sunday around 88 degree any thoughts ?
 
I to am using Evans Coolant, have a slightly built 318, have a 22" Champion 3 core alum. radiator, stock 5 blade none clutch mopar fan blade, with shroud , have a 180 degree thermostat, running a 16 lb cab on the radiator, only have about 150 miles on the engine, drove it a few time last year, Novermber was the last time to shop for State inspection, parked in garage over the winter, first time drove Sunday 6/28/20 , took to filled up gas tank, took short drive watching gauges as normal, temp was around 185 degree , as i pull into my drive way seen some steam from under hood, pulled into garage, had anifreeze 'Evans coolant ' coming out of the overflow bottle, did not have any type of problem last year and did not touch any thing since then, i am thinking maybe the 16 lb cap on rad is to low ? the temp. on the gauge in car was normal, it was very hot here on Sunday around 88 degree any thoughts ?

Might get more help starting a thread vs tacking onto one in the big block section about your 318 (small block).
 
I to am using Evans Coolant, have a slightly built 318, have a 22" Champion 3 core alum. radiator, stock 5 blade none clutch mopar fan blade, with shroud , have a 180 degree thermostat, running a 16 lb cab on the radiator, only have about 150 miles on the engine, drove it a few time last year, Novermber was the last time to shop for State inspection, parked in garage over the winter, first time drove Sunday 6/28/20 , took to filled up gas tank, took short drive watching gauges as normal, temp was around 185 degree , as i pull into my drive way seen some steam from under hood, pulled into garage, had anifreeze 'Evans coolant ' coming out of the overflow bottle, did not have any type of problem last year and did not touch any thing since then, i am thinking maybe the 16 lb cap on rad is to low ? the temp. on the gauge in car was normal, it was very hot here on Sunday around 88 degree any thoughts ?


Why are you running a 16 pound cap? You don’t need it. I run a 2 pound cap.

If you are pushing coolant out, you have other issues. Evans doesn’t make or need pressure.
 
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