What MPG are you getting after going F.I.

modme · 03-27-2013, 05:46 PM

The only way that turbos increase MPG is by decreasing the engine size. Car manufactures use turbos in the cars to create the same amount of horsepower with a smaller displacement engine.

For example, BMW 335 uses twin turbos to enable a 3.0 liter engine to output around 300bhp. Without turbos, the same engine would probably require a 3.5 liter to make the same power. At idle and cruising, a 3.0 liter engine will use less gas compared to the 3.5, therefore you "increase MPG by turbos".

However, slapping on turbos on the same engine with same displacement will NOT increase MPG.

03-27-2013, 05:46 PM	#11 (permalink)
modme Enthusiast Member Join Date: Mar 2009 Location: NY Posts: 345 Drives: G37 Rep Power: 16	The only way that turbos increase MPG is by decreasing the engine size. Car manufactures use turbos in the cars to create the same amount of horsepower with a smaller displacement engine. For example, BMW 335 uses twin turbos to enable a 3.0 liter engine to output around 300bhp. Without turbos, the same engine would probably require a 3.5 liter to make the same power. At idle and cruising, a 3.0 liter engine will use less gas compared to the 3.5, therefore you "increase MPG by turbos". However, slapping on turbos on the same engine with same displacement will NOT increase MPG. VDC_OFF likes this. __________________ GTM Twin Turbo Stage 2\|GTR Turbo/Engine Gauges\|KW V3 Coilovers\|HKS Exhaust\|Oil Cooler\| Vossen CV1