MX5 Parts Spares - Product Review For - MX5 Performance Induction System Parts for Mk2 2.5 1998 2005 - IL Motorsport Cold Air Induction Kit, MX5 Mk2 2.5
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Average Customer Review: 3.5 of 5 Stars! [After 5 Reviews]

IL Motorsport Cold Air Induction Kit, MX5 Mk2/2.5
IL Motorsport Cold Air Induction Kit, MX5 Mk2/2.5
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£296.12
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by Frederick Davie
Date Added: Friday 23 December, 2011
3 of 5 Stars!
Just as a reply to the very negitive review - arranging a 'cold-air' intake system is the cheapest form of tunning going.
Try comparing the ambient air tempreture against the tempreture of the air in the induction tract (or underbody temp. in the region of the intake filter) THEN do the sums!

You can end up with something like a 30 to 40 degree tempreture differential. Compare then the density of air at the different temps and you will see that the 'cold' air density is so much higher ie more oxygen per unit charge.
Run that against the stociometric(?) ratio (ideal fuel to air ratio) and you see that you can get more fuel in per charge the colder the intake air.
Failing all that guff! - take out the plot on a cold and frosty morn!.

The IC engine basically is an air pump - the more air that passes thru it the more fuel that can be added (and burnt) therefor increasing power.
Ease the path of the air into the engine as much as is practical and use 'cold' air!!

Dare I say it perhaps the kit in question is not very well engineered - ie the cold air bit is achieved but the inlet tract is so convoluted, filled with obstructions or a poor choice of filter - all tending to negate the cold air advantage.