Quote:
Originally Posted by Kodename47
Would be interesting to see if the underbody aero would be massively affected. For example blown diffusers utilise the heat and extra airflow under the car, so it's not always a bad thing. It does depend on some factors though. You might find it actually helps improve airflow coming under the front bumper for example, splitter or not. I'd imagine having no lower splitter would see the front bumper create way more of an issue than this plate.
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Whether it's a massive effect is hard to say imo. I'm pretty sure the blown diffuser effect is more due to the exhaust gas having a higher relative velocity than the air in the diffuser than it is the heat. The engine bay heat doesn't really flow so much as it needs extracting, and in an FR layout it would have to be dumped at the front of the car. So it slows that air, which in turn means slower air through the diffuser.