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How much power from lower intake temps?

How much extra power can you get from lowering intake temps?

8 Celsius drop in temperatures gave a 5% increase in engine power.


The Test

I recorded an 8.3 Celcius reduction in air temperature reducing acceleration time by 0.3 seconds, between 115km/h and 140km/h


How much horsepower does that equate to?

Using the StrikeEngine engine power calculator

Engine produced 159PS at 9.3 Celsius and 151PS at 17.7 Celsius.

An 8 Celsius change in temperature gave the engine an extra 5% of power or in this case 8PS.

For such a small change in temperature the difference in power is huge.

This test was on a normally aspirated engine.

Can you imagine how much lower temperatures will have on a turbo vehicle whose intake manifold temperatures are much higher than ambient temperature?

Anything that can be done to lower the temperature of the air entering the engine is a good thing, even if it only lower the temps by a few degrees.


This page was last modified Sep 21, 2019 @ 5:30 pm



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This article is in these categories: Engine, Information, StrikeEngine Blog, StrikeEngine TV, Tuning





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