| The more they pressurize the incoming air, the more heat content the air will have.. sortof like the principle of how a diesel engine works: compress the air so much that its temperature rise is great enough to ignite the fuel without spark. Intercoolers are solely to lower the temperature of the air so that once it gets into the engine, compresses, and the plug fires, the volatile mixture doesn't go off all at once: that being detonation. Given that you have upgraded intercoolers, you have raised the threshold of the boost level that detonation will occur at as compared to stock ICs, which is why I said that you are probably OK, but given that this time of year presents its own environmental challenges for boosted applications (heat), you might want to kick that down a notch to be on the safe side. So, its not a matter of if the turbos are blowing hot air - they always are - the question is how hot is that air and how much can you cool it back off through the intercoolers prior to intake. FWIW: on a 70 degree day at 18psi on stock turbos at sea level, the discharge temperature of the compressed air is 301F by around 4500RPM. Your intercoolers, on the same day, are bringing that down to around 115F and re-condensing the air by a proportional margin. Given proper intercooling and racefuel, you could run stock turbos all the way to their peak potential of around 21psi and you would make the most power as compared to any lower boost level on the same setup. So, just because they are blowing hot air doesn't mean you can't cool it and make more power. :)
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