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SVT Shelby GT500
IAT2 ranges 40-50* above ambient with HE/fans
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<blockquote data-quote="Bad Company" data-source="post: 15615449" data-attributes="member: 141815"><p>Yes I know what the OP question was about. My comprehension of the reading of following posts is that a number of people believe that once the bypass valve is open that the air never passes through the intercooler. That it passes from the SC inlet elbow to the bypass system and the lower intake without passing through the intercooler. Hence the belief of high IAT2 readings.</p><p></p><p>I was trying to clear that misconception up.</p><p></p><p>Now why are the IAT2 readings high? Well that could be caused by many issues. Has the tune been altered to bring the intercooler pump on earlier or not? Does the car have the cast iron exhaust manifolds or headers? Why would that matter? The cast iron manifold will act as a heat sink to raise under hood temperatures when the car isn't moving. Does the car have a 170*F thermostat? The engine block, heads, supercharger and intake manifold are all heat sinks that will radiate heat back to the inlet air stream of the idling engine, along with radiating heat under the under the hood of the engine bay area. Does the car have the older style intercooler pump that has a 50% lower water flow rate of the 13/14 cars? A lower water flow rate pump doesn't transfer the same amount of heat in the form of BTUs from the intercooler to the HE. </p><p></p><p>I'm sorry if my trying to explain how the bypass valve works upset you, but my comprehension of what I was reading was that people believe that the air enters from under the hood at the air filter and travels straight to the lower half of the intake manifold without ever passing through the intercooler and that THIS was WHY the IAT2 temps where so high driving at low load engine conditions or sitting in traffic. </p><p></p><p>I'll leave you to your discussion without any further input to upset you</p></blockquote><p></p>
[QUOTE="Bad Company, post: 15615449, member: 141815"] Yes I know what the OP question was about. My comprehension of the reading of following posts is that a number of people believe that once the bypass valve is open that the air never passes through the intercooler. That it passes from the SC inlet elbow to the bypass system and the lower intake without passing through the intercooler. Hence the belief of high IAT2 readings. I was trying to clear that misconception up. Now why are the IAT2 readings high? Well that could be caused by many issues. Has the tune been altered to bring the intercooler pump on earlier or not? Does the car have the cast iron exhaust manifolds or headers? Why would that matter? The cast iron manifold will act as a heat sink to raise under hood temperatures when the car isn't moving. Does the car have a 170*F thermostat? The engine block, heads, supercharger and intake manifold are all heat sinks that will radiate heat back to the inlet air stream of the idling engine, along with radiating heat under the under the hood of the engine bay area. Does the car have the older style intercooler pump that has a 50% lower water flow rate of the 13/14 cars? A lower water flow rate pump doesn't transfer the same amount of heat in the form of BTUs from the intercooler to the HE. I'm sorry if my trying to explain how the bypass valve works upset you, but my comprehension of what I was reading was that people believe that the air enters from under the hood at the air filter and travels straight to the lower half of the intake manifold without ever passing through the intercooler and that THIS was WHY the IAT2 temps where so high driving at low load engine conditions or sitting in traffic. I'll leave you to your discussion without any further input to upset you [/QUOTE]
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IAT2 ranges 40-50* above ambient with HE/fans
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