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Old 08-29-2014, 04:31 PM   #1
jon6.0
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Engine Ice Coolant for blower

Just did a drain, flush, and fill with Engine Ice coolant. Going out in a few to test it. If I didn't have HP Tuners and the ability to turn on the pump it would have been a huge pain in the booty.
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Old 08-29-2014, 06:29 PM   #2
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In for the data....
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Old 08-29-2014, 08:09 PM   #3
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Old 08-29-2014, 08:35 PM   #4
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Maybe 1F to 2F less while cruising. 109F outside and it was running 120F to 122F IAT2. When the sun goes down I will go do some 1st-4th pulls.
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Old 08-29-2014, 09:22 PM   #5
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Quote:
Originally Posted by jon6.0 View Post
Just did a drain, flush, and fill with Engine Ice coolant. Going out in a few to test it. If I didn't have HP Tuners and the ability to turn on the pump it would have been a huge pain in the booty.
How are you turning on the coolant pump via HP Tuners?
Thanks.
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Old 08-29-2014, 09:45 PM   #6
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How are you turning on the coolant pump via HP Tuners?
Thanks.
In the VCM scanner. Under displays and then VCM controls. Then click the boost tab. After that once you connect you can click "on" for the intercooler pump.
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Old 08-29-2014, 09:48 PM   #7
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Key on, engine off...



Or you can set the pump to come on in the calibration as soon as the key is turned on, still with the engine off...

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Old 08-29-2014, 10:25 PM   #8
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Sweet! I was just looking for this, an hour ago.
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Old 08-30-2014, 10:36 AM   #9
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Got some good data this morning.

78F outside. 90F-92F cruising at 80mph. 100F cruising at 100mph in 5th. 104F-110F cruising at 110-120mph in 5th.

Slowed down and let it get to 92F IAT2. Did a pull to the top of 3rd and 4th. 120F IAT2 at the top of 4th. Did it again a couple miles later and saw 122F IAT2. I need to do some pulls when it's 100F outside.
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Old 08-30-2014, 11:50 AM   #10
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More data.

91F outside. Cruising at 90mph in 5th 106F IAT2. Slow down to 70mph and do a 3-4 pull to the top of 4th.

Run #1 126F IAT2

Slowed down and let it cool down to 108F. The following pulls were done one after the other as soon as it hit 108F IAT2.

Run #2 127F IAT2

Run #3 127F IAT2

Run #4 127 IAT2

Run #5 131F IAT2. Finally saw hot heat soak with the fifth run.
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2011 C6, 750rwhp, forged LS3, ported LSA heads, Vortech Ti-trim, 227/243 115+4 Lunati cam, ported LS3 intake, Alky Control methanol, Pfadt sways/shocks/trans mounts, Pfadt tri-y headers(Sold 6/28/14)
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Old 08-30-2014, 12:12 PM   #11
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http://youtu.be/AW1ljjNKdmc
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Old 08-30-2014, 04:41 PM   #12
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How often does the intercooler pump come on and whats the duration of run time. I've noticed that once I started monitoring my IAT's, my temps on the IAT2 has been in the 128-154 range and that its steady until I see it rapidly drop from time to time while cruising. It's usually pretty humid and temps outside are in the 88-95 range.

What would be a normal IAT2 temp range of a stock LSA with ambient air temp of 93F?

I would be very interested in using this for my car.
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Old 08-30-2014, 05:08 PM   #13
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Something sounds weird then. My IAT2 is 12-15F above ambient while cruising. I was seeing up to 145F with the stock blower coolant in 105F ambient temps. I would have your blower coolant level checked. It sounds like it might not be full or the pump isn't working right.
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Old 08-30-2014, 07:11 PM   #14
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What were the comparable numbers before the coolant change?

Tony
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Old 08-30-2014, 07:22 PM   #15
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What was your injector duty cycle on runs 2, 3, or 4 just curious.
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Old 08-30-2014, 08:51 PM   #16
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Quote:
Originally Posted by RLHMARINES View Post
How often does the intercooler pump come on and whats the duration of run time. I've noticed that once I started monitoring my IAT's, my temps on the IAT2 has been in the 128-154 range and that its steady until I see it rapidly drop from time to time while cruising. It's usually pretty humid and temps outside are in the 88-95 range.

What would be a normal IAT2 temp range of a stock LSA with ambient air temp of 93F?

I would be very interested in using this for my car.
Sounds like you have air in your system and could use a good bleed.
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Old 08-31-2014, 06:12 PM   #17
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What was your injector duty cycle on runs 2, 3, or 4 just curious.
Not sure. I was using my DashLogic. I can tell you my long term fuel trims are -8% to -9% though.
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Old 09-14-2014, 11:17 PM   #18
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Quote:
Originally Posted by jon6.0 View Post
Something sounds weird then. My IAT2 is 12-15F above ambient while cruising. I was seeing up to 145F with the stock blower coolant in 105F ambient temps. I would have your blower coolant level checked. It sounds like it might not be full or the pump isn't working right.
Quote:
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Sounds like you have air in your system and could use a good bleed.
I had my dealer check it on Friday and I even showed them photos of my temp readings that I took with phone on the ride over. They did the checks and informed me everything was working properly and they also said that the tech had another tech ride along with him using a laptop to help diagnose my system. Everything was to GM spec as far as temp range and intercooler pump operations

Now here is the kicker, I now have a much lower IAT2 reading and she settles out about 8 to 12 degree above my IAT reading. :thumb up: So something was obviously not working right or maybe it was air bound as you guys mentioned. My dash logic has just really paid for itself because I would have never known I had an issue and she would have been just pulling power all the time.

Thanks for the help guys.
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Old 09-14-2014, 11:27 PM   #19
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Originally Posted by RLHMARINES View Post
I had my dealer check it on Friday and I even showed them photos of my temp readings that I took with phone on the ride over. They did the checks and informed me everything was working properly and they also said that the tech had another tech ride along with him using a laptop to help diagnose my system. Everything was to GM spec as far as temp range and intercooler pump operations

Now here is the kicker, I now have a much lower IAT2 reading and she settles out about 8 to 12 degree above my IAT reading. :thumb up: So something was obviously not working right or maybe it was air bound as you guys mentioned. My dash logic has just really paid for itself because I would have never known I had an issue and she would have been just pulling power all the time.

Thanks for the help guys.
Awesome!
This is why it's so important for people to be able to datalog, or at least be able to see what's going on with these cars.
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Old 09-14-2014, 11:30 PM   #20
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Old 09-15-2014, 10:51 AM   #21
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Originally Posted by RLHMARINES View Post
I had my dealer check it on Friday and I even showed them photos of my temp readings that I took with phone on the ride over. They did the checks and informed me everything was working properly and they also said that the tech had another tech ride along with him using a laptop to help diagnose my system. Everything was to GM spec as far as temp range and intercooler pump operations

Now here is the kicker, I now have a much lower IAT2 reading and she settles out about 8 to 12 degree above my IAT reading. :thumb up: So something was obviously not working right or maybe it was air bound as you guys mentioned. My dash logic has just really paid for itself because I would have never known I had an issue and she would have been just pulling power all the time.

Thanks for the help guys.
I don't think the service reps at the dealers really understand these LSA supercharger coolant systems that much. I had several problems with cooling that were missed by my service reps at the dealer before I got to the point that I was taking care f my own car. It is very difficult to get all of the air out of the system, especially if you don't have an aftermarket reservoir. If you get the supercharger really hot it boils more fluid and you get more air. When an air pocket hits the stock pump it automatically turns off so it won't run dry and get destroyed. Once the pump turns off you just keep driving with no coolant circulation and if there is coolant in the inter cooler it will eventually boil if it is not circulating making the problem worse. I recommend getting a reservoir and checking the level regularly because the air eventually circulates into the reservoir.

Quote:
Originally Posted by white ZL1 View Post
Awesome!
This is why it's so important for people to be able to datalog, or at least be able to see what's going on with these cars.
+1
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Old 09-15-2014, 11:23 AM   #22
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It is very difficult to get all of the air out of the system, especially if you don't have an aftermarket reservoir. If you get the supercharger really hot it boils more fluid and you get more air. When an air pocket hits the stock pump it automatically turns off so it won't run dry and get destroyed. Once the pump turns off you just keep driving with no coolant circulation and if there is coolant in the inter cooler it will eventually boil if it is not circulating making the problem worse. I recommend getting a reservoir and checking the level regularly because the air eventually circulates into the reservoir.
I plan to get the D3 reservoir and the Ron Davis heat exchanger is on my to do list also down the road.
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