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SVT Shelby GT500
Any actual IAT gains from trunk ice tank with no ice on the street?
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<blockquote data-quote="Willie" data-source="post: 16231209" data-attributes="member: 14133"><p>Correct. No difference adding a rear tank from replacing the stock front reservoir with a larger capacity unit.</p><p></p><p></p><p></p><p>I can only quantify results from my personal experience. But first, my rear system does not include an HE. The reason is simple. With ice, the temps are significantly lower than ambient, so a HE would RAISE the temp, not lower it. I also have a dual temp gauge that reads before and after the intercooler (in the intake). I built the rear system for track use only (controlled environment), never on the street, because..... if I were to use the rear system on the street, the temps slowly rise and there is no way to cool it back down.</p><p></p><p></p><p></p><p>At the track, I put in four or five bags of ice prior to a pass but I do not switch to the rear system until just prior to the burnout. Trust me, as soon as the rear system is flowing, I can see my temp gauge drop like a rock, and when the coolant temps drops like this, the IAT2 temp also drops very quickly... On a 110 degree summer day with my front system cruising at 45 mph and a starting IAT2 of 135 degrees ish, I switch to the ice bagged rear system. I watch my coolant temp gauge drop a rate of about two degrees per second until it stabilizes around 50 degrees. My IAT2 drops about one degree per second until it bottoms out around 70 degrees. This is a fully warmed up motor, 190 ish degrees engine temp, on a 110 degree day. BUT as the ice quickly melts, so do the temps return to "normal".</p><p></p><p>I don't have data under boost, but based on my temps at the start of a pass leads me to believe that even if the temps are FORTY degrees hotter at the end, it is still well below where the PCM starts pulling timing (125 deg ish IAT2). I really doubt it would be forty degrees hotter...</p><p></p><p></p><p></p><p>I use a Meziere pump on my rear system (I forget the gph, but much higher at the stocker), with a KB single channel BAP. I run this pump at 17 volts.</p><p></p><p></p><p></p><p>Aliens do!! Guess we haven't figured out how to stabilize Element 115 yet, lol...</p></blockquote><p></p>
[QUOTE="Willie, post: 16231209, member: 14133"] Correct. No difference adding a rear tank from replacing the stock front reservoir with a larger capacity unit. I can only quantify results from my personal experience. But first, my rear system does not include an HE. The reason is simple. With ice, the temps are significantly lower than ambient, so a HE would RAISE the temp, not lower it. I also have a dual temp gauge that reads before and after the intercooler (in the intake). I built the rear system for track use only (controlled environment), never on the street, because..... if I were to use the rear system on the street, the temps slowly rise and there is no way to cool it back down. At the track, I put in four or five bags of ice prior to a pass but I do not switch to the rear system until just prior to the burnout. Trust me, as soon as the rear system is flowing, I can see my temp gauge drop like a rock, and when the coolant temps drops like this, the IAT2 temp also drops very quickly... On a 110 degree summer day with my front system cruising at 45 mph and a starting IAT2 of 135 degrees ish, I switch to the ice bagged rear system. I watch my coolant temp gauge drop a rate of about two degrees per second until it stabilizes around 50 degrees. My IAT2 drops about one degree per second until it bottoms out around 70 degrees. This is a fully warmed up motor, 190 ish degrees engine temp, on a 110 degree day. BUT as the ice quickly melts, so do the temps return to "normal". I don't have data under boost, but based on my temps at the start of a pass leads me to believe that even if the temps are FORTY degrees hotter at the end, it is still well below where the PCM starts pulling timing (125 deg ish IAT2). I really doubt it would be forty degrees hotter... I use a Meziere pump on my rear system (I forget the gph, but much higher at the stocker), with a KB single channel BAP. I run this pump at 17 volts. Aliens do!! Guess we haven't figured out how to stabilize Element 115 yet, lol... [/QUOTE]
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Any actual IAT gains from trunk ice tank with no ice on the street?
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