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Old 11-15-2019, 05:30 PM   #1
ZX1truth
 
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Cooling for my 427LSX TT bad boy! What's best?

In 90*F weather here in California with stop and go driving I am getting up to 232*F coolant temps and not liking it. I am running the AGP race intercooler so that is a big issue. Thinking about 3 things to change.....bigger alum radiator....higher cfm fans and a electric water pump to be controlled by my Pro EFI computer.
Flex a lite had a nice radiator /fan set up that they have now discontinued. So it looks like there is only Mishimoto ($400)or Be Cool ($900) for radiator options for a 2010 SS. Does anyone know of any other options?
Also.....can't seem to find any higher cfm aftermarket fan system upgrades either.....anyone know of any?

Anyone upgrade their cooling systems????
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Old 11-15-2019, 05:47 PM   #2
hammdo
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Aux water pump will get you 4° cooler — when moving, maybe 2 when not — I have a bigger rad (CSF), separate trans (auto) and oil coolers, plus all the hx coolers — still gets to 217° In the summer. More venting of the engine bay and a belly pan would help. I also created baffling to force the air through the radiator.

I’d see if you can baffle the air towards the radiator and eliminate areas where it can sneak around it — bottom, sides, top. Belly pan would help with pressure differences also...


I looked for fans, the only thing I founds was a JMS fan booster to run the fans faster at idle — that is another option.


It gets hot here too ;o)


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Old 11-15-2019, 06:43 PM   #3
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Check Ron Davis. I love my heat exchanger. Not cheap.
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Old 11-15-2019, 06:53 PM   #4
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Before you spend big money on parts, make sure you're directing air through the radiator.

I assume you/your tuner has lowered the fan turn on temps?

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Old 11-16-2019, 09:38 AM   #5
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I had a custom radiator made.
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Old 11-16-2019, 01:15 PM   #6
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Happy birthday Glenn! But hey I dont see coolant temp issues at all and I have the race intercooler, I would assume you have the 160 Tstat? Also running ethanol would help a ton. Get that dex coolant out of there and run all water with some water wetter.
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Old 11-19-2019, 10:35 PM   #7
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I'm pretty sure the highest CFM fans out are the PWM Spals. Copy Scuzz's set-up.
Aux cooling at the back of the car works great too. Brake up the cool job around the car more.
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Old 11-20-2019, 05:33 PM   #8
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Id look at a radiator from the guys at C&R. Also look into the tune. If on e85 richen up the idle and the temps will drop some. im assuming you already have a 160* stat?
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Old 11-21-2019, 07:46 AM   #9
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Just a note about the guys mentioning running a lower Tstat. If your car is running 230 degrees at idle it does not matter if you have a 120 degree Tstat or a 210 degree Tstat. Directing air flow is a big one. Scuzz that had his custom made has an awesome shroud that makes sure all air from the fans goes through the radiator and not pulled around gaps. A larger radiator can help increasing cooling capacity. Running a longer loop aux set up would fix it but probably be my last attempt. I don't personally like electric water pumps, I like a mechanical pump, just feels more reliable to me.
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Old 11-21-2019, 09:30 AM   #10
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If you have no risk of freezing you would benefit from straight distilled water and water wetter.
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Old 11-21-2019, 11:12 AM   #11
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ZX1truth, Scuzz and I are in the same boat; but Scuzz is way ahead of us. I don't have the stop-and-go getting hot issue but if I run at higher RPMs, I get hot 230*F plus. Still stock radiator and fans but did adjust the tune for the fans to come on faster, earlier. I'm thinking I'll try the DeWitt 1-1/2" tube radiator (versus the 1" tube) first, but that fancy shroud sure looks pretty.
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Old 11-21-2019, 11:50 AM   #12
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Quote:
Originally Posted by Greenhornet2 View Post
If you have no risk of freezing you would benefit from straight distilled water and water wetter.
This right here works really well. Had cooling issues on a blown 4th gen I had and this solved all my issues. Straight water and 2 bottles of water wetter worked wonders.
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Old 11-21-2019, 03:55 PM   #13
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Quote:
Originally Posted by dreksnot View Post
ZX1truth, Scuzz and I are in the same boat; but Scuzz is way ahead of us. I don't have the stop-and-go getting hot issue but if I run at higher RPMs, I get hot 230*F plus. Still stock radiator and fans but did adjust the tune for the fans to come on faster, earlier. I'm thinking I'll try the DeWitt 1-1/2" tube radiator (versus the 1" tube) first, but that fancy shroud sure looks pretty.
Just doing some deep thinking after my two margarita lunch. But do you guys with these 427 build think that your higher temps are due to having iron blocks and not necessarily an "inefficient" cooling system. The higher temp are likely due to the iron's lack of ability to dissipate hit as efficiently as aluminum. Seem like a reasonable trade off, strength for temps, but is this really even a "big" issue?
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Old 11-21-2019, 04:21 PM   #14
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I have a steel block, FMIC, upgraded radiator, A/C, etc. I even upped the pulsewidth on the stock fans, until it melted the OEM fan connectors.
When I lived in Vegas, the temps would typically be about 220 w/ A/C. I used distilled water and RMI-25. Even so, my oil temps would climb to uncomfortable numbers.
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