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so if using an open filter a heat shield will improve power (as long as it works?)

the readings for fueling are taken before the air gets to the turbo? maf?
Yes for airflow. No for pressure and temp, they are after the intercooler(s)

so the ic trys to maintain that air temp taking away the extra heat caused by the compressor?
Yes to taking away the extra heat caused by the compressor

was getting it wrong by seeing the fmic as an extra cooler but its only there to negate the turbo heat effect?
An intercooler can't cool below the ambient air temp (it would be x degrees above), but it could cool below engine compartment temps.

or am i sounding daft.:confused:
:D
 
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dave :p


but thank you for clearing it up ;)

the more i think about this the more i realise staying awake during chemistry/physics should have been a priority
 
I'd love an open cone but im quite warey of having maf problems that they like to cause.
 
The reason your car runs better on a cold winters day is because freezing cold air is hitting the intercooler and cooling the charge more than normal, so colder, denser air is leaving the intercooler and entering the engine - NOTHING to do with the air filter.

I tested this theory myself using the Scangauge, which shows the intake temperature. I ran the enclosed K&N Apollo with a cold air feed, noting the intake temps, I went home, removed it and fitted an open cone in the same position as the K&N ... guess what ... no difference whatsoever in intake temps, but the car did feel more responsive with the open cone, sounds alot better too!!!

I'm still on my first MAF and have been running open cones for years. I'm currently running an Apexi filter which is dry, no oil.