Hmm Cutting The Plastic Under The Engine Bay?

[BLOODUK]

Just wondering is it worth cutting the plastic underneath one of the engine bay grills , but leaving the left side on as to cover the alternator stop water getting on it... would this keep the engine cooler? i just dont see the point of an engine grill if its underside is covered up with plastic.

Your views?

[G200]

it would probably be better to remove but the only thing is what water could come into contact with under there. Maybe not from rain but washing car, tidal wave etc.

[Karma Supra]

You'lll probable find it runs WARMER with it removed! The engine voer has ample louvres over the top, fans/ailflow blows cold ait in at the sides, it runs over the engine cooling it and escapes from the top as warm air, also sucked out by a venturi effect. by removing the lower plate the air will just escape under the engine, significantly reducing the cooling airflow over it

The cooling systems on some cars rely on a bottom plate!

[midmotorsteve]

You'lll probable find it runs WARMER with it removed! The engine voer has ample louvres over the top, fans/ailflow blows cold ait in at the sides, it runs over the engine cooling it and escapes from the top as warm air, also sucked out by a venturi effect. by removing the lower plate the air will just escape under the engine, significantly reducing the cooling airflow over it 

The cooling systems on some cars rely on a bottom plate!

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i think.. not 100% that he means the part of the engine lid, not the undertray... maybe wrong

[Bibbs]

I think Toyota designed it like that for a reason .. only other thing I can suggest is try it .. get a spare and a few temp sensors and see what results you get.

[BLOODUK]

Thanks for the replies ;)