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Old 05-29-2019, 07:53 PM   #1
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Cooling ideas?

So I live down south in Louisiana. It gets hot and humid. I have been driving the gto every day for the past few weeks and on my commute in the afternoon I sit in bumper to bumper traffic. My coolant temps get up to about 217 and my trans temp gets to 207. Then once they get there, I get on the interstate and it donít drop but to 210-212. Iím not liking that. I put two bottles of redline water wetter in today and it only helped by about 3 degrees. Lol.

So hereís what I have. Stock radiator. I actually just bought it new about a month ago so Iíd rather not change that right now. I have a cheap trans cooler up front inbetween the radiator and intercooler. I thought about getting a better trans cooler and maybe relocating it under the car in one of the muffler areas with its own fan. Maybe put a fan on the one I have. Put some fans on the intercooler to draw more air in? What you guys think?

Iím really not too keen on an aftermarket radiator. Short story. My buddy bought three. None of them fit correctly. Including a mishimoto. And the trans cooler in them was nothing but a tube.
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Old 05-30-2019, 03:50 AM   #2
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What about removing the lower grill in front of the intercooler.
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Old 05-30-2019, 04:58 AM   #3
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Another turbo problem...ha. just had to.

Removing the lower grill wont do much. Id suggest trying to do heat managent in the bay. Turbo blanket? Oil cooler would probably help quite a bit. Moving the trans cooler out from the front of the radiator would also. Fans will only help prolong temp rise when stopped/slow moving. I believe its around 30mph that fans arent moving more air than is being fed anyways.
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Old 05-30-2019, 05:00 AM   #4
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try diverting that air to see if flow to radiator increases with speed rather than decreases.

Sounds like an easy thing to try would be things that can be put back. Like the lower grill.
Do you have a radiator cover (air baffle) on it?
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Old 05-30-2019, 05:16 AM   #5
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FYI, I have a derale atomic cooler with fan and thermostat that I used for 3 of my 6 transmissions.

The transmissions may of not worked, but this thing did.

I'll sell it to you cheap since its just sitting around my bedroom collecting dust.

I recommend flushing it for piece of mind.

I'll get a photo of it tonight.
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Old 05-30-2019, 06:25 AM   #6
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I would recommend the Procharger Fans.
https://shop.brutespeed.com/ATI-MF00...MF007I-063.htm
At what temp do you have the stock fans set to come on at? I had the Prochager fans activating at 195.
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Old 05-30-2019, 07:33 AM   #7
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Quote:
Originally Posted by Sacrifice...View Post
Another turbo problem...ha. just had to.

Removing the lower grill wont do much. Id suggest trying to do heat managent in the bay. Turbo blanket? Oil cooler would probably help quite a bit. Moving the trans cooler out from the front of the radiator would also. Fans will only help prolong temp rise when stopped/slow moving. I believe its around 30mph that fans arent moving more air than is being fed anyways.

LOL, it ran a little warm before the turbo (205ish but the trans ran like 180-190) If you modify an engine...stroke, more compression, turbo, supercharger....its pretty normal for it to run hotter. especially with a stock cooling system like mine is.....so your point is invalid.....lol

Quote:
Originally Posted by LS2-GTO...View Post
try diverting that air to see if flow to radiator increases with speed rather than decreases.

Sounds like an easy thing to try would be things that can be put back. Like the lower grill.
Do you have a radiator cover (air baffle) on it?

the cover over the top of the radiator is in place. not sure what you mean by diverting the air? which way? The bottom cover under the car that goes from the lower bumper to the radiator support is missing. I had to remove it for intercooler clearance. I thought about making another one.

Quote:
Originally Posted by DangerNoodle...View Post
FYI, I have a derale atomic cooler with fan and thermostat that I used for 3 of my 6 transmissions.

The transmissions may of not worked, but this thing did.

I'll sell it to you cheap since its just sitting around my bedroom collecting dust.

I recommend flushing it for piece of mind.

I'll get a photo of it tonight.

Pm sent. Might be interested. I have to watch funds right now tho, taking the family on vacation and the wife is giving me a hard time about buying car parts.....
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Old 05-30-2019, 07:34 AM   #8
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Originally Posted by ocgoat...View Post
I would recommend the Procharger Fans.
https://shop.brutespeed.com/ATI-MF00...MF007I-063.htm
At what temp do you have the stock fans set to come on at? I had the Prochager fans activating at 195.

I have the fans coming on around 175. both. high speed kicks in around 178-180


Does that fan setup work better than the stock fans? You ever used one?

Last edited by Kfxguy; 05-30-2019 at 07:56 AM.
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Old 05-30-2019, 08:11 AM   #9
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What temp tstat are you running? Doesn’t matter when fans come in if water isn’t moving. Also even with a lower temp stat you’ll eventually be back at terminal temp but may buy you some time to get on the highway.
With moving the trans rad I think you’ll still realize that you need more volume to get a lower terminal temp. First I’ve heard of the mish not fitting right after a trim of the lower rubbers.
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Old 05-30-2019, 08:22 AM   #10
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Originally Posted by Kfxguy...View Post
I thought about getting a better trans cooler and maybe relocating it under the car in one of the muffler areas with its own fan. Maybe put a fan on the one I have. Put some fans on the intercooler to draw more air in? What you guys think?

these aren't bad ideas.

i'm not sure i like setups that sandwich a bunch of heat exchangers together.

since you have a turbo, you might want to consider doing a separate oil cooler as well, if you haven't already.

routing all the lines would suck. i think one of the problem with oil lines is that with longer lines, you end up not having as much pressure and have additional points of failure. just because of that, you may want to find spaces for them in front.

there isn't much real estate up in the front bumper, unfortunately.
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Old 05-30-2019, 11:34 AM   #11
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Originally Posted by Nothubertjfarnsworth...View Post
these aren't bad ideas.

i'm not sure i like setups that sandwich a bunch of heat exchangers together.

since you have a turbo, you might want to consider doing a separate oil cooler as well, if you haven't already.

routing all the lines would suck. i think one of the problem with oil lines is that with longer lines, you end up not having as much pressure and have additional points of failure. just because of that, you may want to find spaces for them in front.

there isn't much real estate up in the front bumper, unfortunately.

Yes you are right. I should do an oil cooler. I'm pretty sure that will help, Point of leak/failure id why i havent yet.







Couple tidbits. Accessed the hidden menu at lunch. Voltage at idle is 12.5-12.6. Hmmmm. Maybe the fans arent getting as much power as they could. Bigger alternator pulley is on the to do list now. Had to put an under drive pulley to give me room for the oil drain off the turbo.

Something else. Guy at work has a bone stock 2013 Boss 302 mustang. Standard trans. He said his temp in traffic is 210-217.
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Old 05-30-2019, 12:18 PM   #12
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Might want to just up the idle a couple hundred rpms.
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Old 05-30-2019, 12:45 PM   #13
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Quote:
Originally Posted by Kfxguy...View Post
Quote:
Originally Posted by Sacrifice...View Post
Another turbo problem...ha. just had to.

Removing the lower grill wont do much. Id suggest trying to do heat managent in the bay. Turbo blanket? Oil cooler would probably help quite a bit. Moving the trans cooler out from the front of the radiator would also. Fans will only help prolong temp rise when stopped/slow moving. I believe its around 30mph that fans arent moving more air than is being fed anyways.

LOL, it ran a little warm before the turbo (205ish but the trans ran like 180-190) If you modify an engine...stroke, more compression, turbo, supercharger....its pretty normal for it to run hotter. especially with a stock cooling system like mine is.....so your point is invalid.....lol <img src="https://www.ls1gto.com/forums/images/smilies/smile.gif" border="0" alt="" title="Smilie" class="inlineimg" />

Quote:
Originally Posted by LS2-GTO...View Post
try diverting that air to see if flow to radiator increases with speed rather than decreases.

Sounds like an easy thing to try would be things that can be put back. Like the lower grill.
Do you have a radiator cover (air baffle) on it?

the cover over the top of the radiator is in place. not sure what you mean by diverting the air? which way? The bottom cover under the car that goes from the lower bumper to the radiator support is missing. I had to remove it for intercooler clearance. I thought about making another one.

Quote:
Originally Posted by DangerNoodle...View Post
FYI, I have a derale atomic cooler with fan and thermostat that I used for 3 of my 6 transmissions.

The transmissions may of not worked, but this thing did.

I'll sell it to you cheap since its just sitting around my bedroom collecting dust. <img src="https://www.ls1gto.com/forums/images/smilies/thumbsup.gif" border="0" alt="" title="thumbs up" class="inlineimg" />

I recommend flushing it for piece of mind.

I'll get a photo of it tonight.

Pm sent. Might be interested. I have to watch funds right now tho, taking the family on vacation and the wife is giving me a hard time about buying car parts.....

I know just giving you a hard time. As much as it sucks to spend more a larger radiator is going to help.
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Old 05-30-2019, 01:53 PM   #14
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Originally Posted by Sacrifice...View Post
I know just giving you a hard time. As much as it sucks to spend more a larger radiator is going to help.



I know. Itís just hard for me to unass $400+ on something Iím probably gonna have to make work. Well from what I saw first hand with my buddy. But his was an 06 and mine is an 04 so I may not have the same issues. I think what Iím going to do is try one thing at a time and see what makes the most difference.
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Old 05-30-2019, 02:07 PM   #15
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I wanted mine to run a little cooler so I changed the the antifreeze mixture. don't get me wrong the engine still heats up but runs a little cooler in the FL heat and was the cheaper to do before changing fans, t-stats, diverters blah blah blah. I went from 50/50 to 70/30 water/ antifreeze with some purple ice. I would do 100% water but I wanted to keep the lubricants from the antifreeze, which I think are in the purple ice but I wasn't sure at the time. and obviously I used the orange stuff.

plus I did a complete flush and there was some crud that came out so I'm sure that also helped a bit.

I don't know what temps get like in the winter in LA, but in fl the last thing I need to worry about is freezing. I actually need to do a flush and a refill, its been more than 2 yrs. maybe what ill do next time is do a 70/30 mix in a 1gal jug and test it and then do a 90/10 mix and test it. as long as it protects to like 10*F-20*F ill be more than safe, I don't need to worry about those -0*F temps
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Old 05-30-2019, 05:12 PM   #16
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What temp thermostat are you running?

Puller fans are more efficient than pusher fans. But adding pushers to the front should help move more air over the stacked up heat exchangers you have.

You have the trans cooler in the radiator and an additional trans cooler in front of the radiator, right? How do you have it routed? Through the radiator and then through the auxiliary one?
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Old 05-30-2019, 05:33 PM   #17
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Originally Posted by The Black Mongoose...View Post
I wanted mine to run a little cooler so I changed the the antifreeze mixture. don't get me wrong the engine still heats up but runs a little cooler in the FL heat and was the cheaper to do before changing fans, t-stats, diverters blah blah blah. I went from 50/50 to 70/30 water/ antifreeze with some purple ice. I would do 100% water but I wanted to keep the lubricants from the antifreeze, which I think are in the purple ice but I wasn't sure at the time. and obviously I used the orange stuff.

plus I did a complete flush and there was some crud that came out so I'm sure that also helped a bit.

I don't know what temps get like in the winter in LA, but in fl the last thing I need to worry about is freezing. I actually need to do a flush and a refill, its been more than 2 yrs. maybe what ill do next time is do a 70/30 mix in a 1gal jug and test it and then do a 90/10 mix and test it. as long as it protects to like 10*F-20*F ill be more than safe, I don't need to worry about those -0*F temps

You have to consider you have a lower boiling point with less coolant and more water, as well.
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Old 05-30-2019, 05:41 PM   #18
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You have to consider you have a lower boiling point with less coolant and more water, as well.

water boiling point is 212*F, 50/50 boiling point is about 223*F. the cars run at about 212, so with 10% antifreeze ill still be above that, granted not by much. I've had good success with the 70/30, maybe ill just keep it at that, ill have to do some research
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Old 05-30-2019, 06:30 PM   #19
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Well, with a big heat snail pumping hot air into his engine, making his oil toasty, and more heat going into the engine just from the additional a/f being burned, i think he would like a margin of error up top in case he makes a real hard run,

Last edited by Nothubertjfarnsworth; 05-30-2019 at 06:37 PM.
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Old 05-30-2019, 06:37 PM   #20
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That sentance is missing a comma, i think.

OK NVM i fixd it.
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Old 05-30-2019, 07:17 PM   #21
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Well, with a big heat snail pumping hot air into his engine, making his oil toasty, and more heat going into the engine just from the additional a/f being burned, i think he would like a margin of error up top in case he makes a real hard run,

yea man I hear ya, does that waterless system work better as far as cooling, or is the only benefit that there's no water. I know its a pita to do the swap but maybe the juice is worth the squeeze
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Old 05-30-2019, 07:51 PM   #22
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Originally Posted by The Black Mongoose...View Post
Quote:
Originally Posted by Nothubertjfarnsworth...View Post
You have to consider you have a lower boiling point with less coolant and more water, as well.

water boiling point is 212*F, 50/50 boiling point is about 223*F. the cars run at about 212, so with 10% antifreeze ill still be above that, granted not by much. I've had good success with the 70/30, maybe ill just keep it at that, ill have to do some research

The boiling point raises under pressure. Boiling point raises 2-3 degrees per lb of pressure. So 18psi cap would raise it up to 266ish

Last edited by Sacrifice; 05-30-2019 at 07:55 PM.
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Old 05-31-2019, 05:49 AM   #23
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What temp tstat are you running? Doesnít matter when fans come in if water isnít moving. Also even with a lower temp stat youíll eventually be back at terminal temp but may buy you some time to get on the highway.
With moving the trans rad I think youíll still realize that you need more volume to get a lower terminal temp. First Iíve heard of the mish not fitting right after a trim of the lower rubbers.

running a stock tstat. The trans fittings would not screw in because the hole was too small inside the fitting on the radiator. I saw this with my own eyes, I was gonna drill it for him but he decided not to drill on a new radiator.
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Old 05-31-2019, 06:41 AM   #24
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I have the fans coming on around 175. both. high speed kicks in around 178-180


Does that fan setup work better than the stock fans? You ever used one?

Yes, it came with the Procharger Kit. I monitored coolant temp in traffic and even in the summer they would bring coolant temp down while stopped. I never ran my procharger setup with stock fans, but I assume there's a reason Procharger included it.
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Old 05-31-2019, 06:42 AM   #25
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Originally Posted by Corndog...View Post
What temp thermostat are you running?

Puller fans are more efficient than pusher fans. But adding pushers to the front should help move more air over the stacked up heat exchangers you have.

You have the trans cooler in the radiator and an additional trans cooler in front of the radiator, right? How do you have it routed? Through the radiator and then through the auxiliary one?

Stock thermo.


trans cooler in radiator, additional cheap cooler in front the condenser. You know the pracket the steering cooler mounts to? thats where its mounted. really not the most efficient way of doing it.

the top trans line is rerouted to the additional cooler.
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Old 05-31-2019, 06:43 AM   #26
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Yes, it came with the Procharger Kit. I monitored coolant temp in traffic and even in the summer they would bring coolant temp down while stopped. I never ran my procharger setup with stock fans, but I assume there's a reason Procharger included it.

i'll call them and ask. thx.
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Old 05-31-2019, 06:47 AM   #27
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Originally Posted by The Black Mongoose...View Post
I wanted mine to run a little cooler so I changed the the antifreeze mixture. don't get me wrong the engine still heats up but runs a little cooler in the FL heat and was the cheaper to do before changing fans, t-stats, diverters blah blah blah. I went from 50/50 to 70/30 water/ antifreeze with some purple ice. I would do 100% water but I wanted to keep the lubricants from the antifreeze, which I think are in the purple ice but I wasn't sure at the time. and obviously I used the orange stuff.

plus I did a complete flush and there was some crud that came out so I'm sure that also helped a bit.

I don't know what temps get like in the winter in LA, but in fl the last thing I need to worry about is freezing. I actually need to do a flush and a refill, its been more than 2 yrs. maybe what ill do next time is do a 70/30 mix in a 1gal jug and test it and then do a 90/10 mix and test it. as long as it protects to like 10*F-20*F ill be more than safe, I don't need to worry about those -0*F temps


i may flush it and start over. I know my mix is probably more concentrated towards anti freeze. Every time i opened the system (cam...heads, heads and cam again....) i added a gallon of straight dex cool. That may be an issue there. What if I put it on the lift at work today (I pretty much drive it every day) and drain the whole radiator and just add water back? That would be a cheap/easy experiment.


I just ran out to the car and tested it. Gotta redo it because coolant was still hot from when I got to work. But it protects to 0f right now.

Last edited by Kfxguy; 05-31-2019 at 06:55 AM.
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Old 05-31-2019, 07:01 AM   #28
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i agree with aluminum core radiator option. Stock radiators are garbage on any newer cars these days with plastic tanks. I went through 5 different stock style radiators on my CTSV and all were sub par and leaked from somewhere. Ended up costing me a block because I didn't have enough antifreeze in engine during cold weather due to just adding water (cracked block above cylinder walls in the cooling jackets). I went with an Alradco radiator on the V and it was awesome, lowered temps by about 20 degrees sitting in traffic. Just built this 04 GTO and got a Coldcase unit from GTOG8TA.com and it was not a perfect fit but I'll say the fit is acceptable. Its a hell of a lot bigger than the stock POS and it works, that's the most important thing! LS's are notoriously hot running engines and if mods are added that increase power and heat generation then the stock radiators need to be upgraded. I feel your pain on spending $$ on something that doesn't fit well but in the end it will be worth it so you don't have to worry about those engine temps climbing and obsessing over your water temp gauge instead of enjoying your ride.
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Old 05-31-2019, 10:02 AM   #29
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WELL. Alternator died. Again. Good ole oreilly alternator. LOL. I'm currently trying to work this situation out. Getting a refund from oreilly, and getting one from autozone. Did your heart sink? Dont fret, they started carrying factory delco parts so I'm getting a delco unit. Definitely not an autozone reman. lol


was sitting in the drive through, toggling through the hidden menu, when i passed the voltage and saw 11.5v real quick...I went back. Then I thought it was a fluke because the check alternator light didnt come on, so i grabbed a fluke and checked the voltage . 11.7v at the battery.



went to a car show last night. Light blipped a couple times. check alternator came on briefly and then the light blipped once on the way to work. Thought it was just playing. Evidently it wasnt.
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Old 05-31-2019, 11:52 AM   #30
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Quote:
Originally Posted by Nothubertjfarnsworth...View Post
these aren't bad ideas.

i'm not sure i like setups that sandwich a bunch of heat exchangers together.

since you have a turbo, you might want to consider doing a separate oil cooler as well, if you haven't already.

routing all the lines would suck. i think one of the problem with oil lines is that with longer lines, you end up not having as much pressure and have additional points of failure. just because of that, you may want to find spaces for them in front.

there isn't much real estate up in the front bumper, unfortunately.

I was thinking about an oil cooler in the turbo feed line.
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