Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - How much power does a supercharger really take to run?

niky · 08-20-2016, 08:50 AM

If I recall from Thomas Knight, to get about 7 psi on a 2.4 liter engine, they needed about 15 horsepower from their electric motor set-up.

Which may not seem like much... but that's a piddling amount of boost for a piddling amount of engine (errh... relative to most supercharged American iron).

When you start talking about big displacement American iron and big boost numbers, that drain can rise fast. It takes a lot of power to compress air.

Here's one scientific test... right on the first page of Google search:

http://www.dragzine.com/news/lose-po...-loss-testing/

Up to 353 hp at 32 pounds of boost.

Yowzah.

08-20-2016, 08:50 AM	#3 (permalink)
niky Master EcoModder Join Date: Aug 2010 Location: Philippines Posts: 2,173 Thanks: 1,739 Thanked 589 Times in 401 Posts	If I recall from Thomas Knight, to get about 7 psi on a 2.4 liter engine, they needed about 15 horsepower from their electric motor set-up. Which may not seem like much... but that's a piddling amount of boost for a piddling amount of engine (errh... relative to most supercharged American iron). When you start talking about big displacement American iron and big boost numbers, that drain can rise fast. It takes a lot of power to compress air. Here's one scientific test... right on the first page of Google search: http://www.dragzine.com/news/lose-po...-loss-testing/ Up to 353 hp at 32 pounds of boost. Yowzah.