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Cobra Forums
SVT Shelby GT500
IAT2 ranges 40-50* above ambient with HE/fans
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<blockquote data-quote="fishpick" data-source="post: 15612207" data-attributes="member: 182347"><p>[USER=124025]@Catmonkey[/USER] : I know that bypass temps are higher, and why, and how the bypass works - BUT - the issue still remains the PCM is gonna pull timing when it sees high numbers for IAT - regardless of if the bypass is open or closed (and I'm using IAT as the post-boost value, so in my posts IAT and IAT2 are interchangeable, I'm not all fancy with 2 temps like you Cobra / GT500 guys). So "cruising" or idling at the line before the tree goes green - pretty sure is going to increase the IAT's while the blower is on bypass and and cause initial timing to be pulled until your IC gets a chance to cool enough air for the PCM to give it back to you...</p><p>So if you are cruising - and the Corvette guy rolls up - and you want to show him he overpaid... you are not "at your best" if your IAT's are sitting at 135-ish because you have been bypassing for a long time...</p><p></p><p>And, again, the fact I see the temps plummet when I jam on things and generate boost shows the IC/HE is working just fine (which is why I said that above)... And why driving more aggressively keeps the temps down...</p><p></p><p></p><p></p><p>And therein lies the challenge - right? Those temps are higher than one would like for just "cruising" - so - I go back to what I suggested to the OP - it could just be that the under hood air temps are making things look hot!</p></blockquote><p></p>
[QUOTE="fishpick, post: 15612207, member: 182347"] [USER=124025]@Catmonkey[/USER] : I know that bypass temps are higher, and why, and how the bypass works - BUT - the issue still remains the PCM is gonna pull timing when it sees high numbers for IAT - regardless of if the bypass is open or closed (and I'm using IAT as the post-boost value, so in my posts IAT and IAT2 are interchangeable, I'm not all fancy with 2 temps like you Cobra / GT500 guys). So "cruising" or idling at the line before the tree goes green - pretty sure is going to increase the IAT's while the blower is on bypass and and cause initial timing to be pulled until your IC gets a chance to cool enough air for the PCM to give it back to you... So if you are cruising - and the Corvette guy rolls up - and you want to show him he overpaid... you are not "at your best" if your IAT's are sitting at 135-ish because you have been bypassing for a long time... And, again, the fact I see the temps plummet when I jam on things and generate boost shows the IC/HE is working just fine (which is why I said that above)... And why driving more aggressively keeps the temps down... And therein lies the challenge - right? Those temps are higher than one would like for just "cruising" - so - I go back to what I suggested to the OP - it could just be that the under hood air temps are making things look hot! [/QUOTE]
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SVT Shelby GT500
IAT2 ranges 40-50* above ambient with HE/fans
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