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beatr911 · 01-20-2010, 01:33 PM

The roller valve train is a popular mod for reducing friction, it certainly wouldn't hurt mileage iether. Piston and head ceramic and friction reducing coatings seem like a good idea for a high output engine. Helps control heat issues. They have DIY products these days so the cost may not be too bad. I'd try it if I was rebuilding.

Be sure to play with cam timing. I advanced my Ford 2.3 OHC cam 9* and got a very noticeable boost in low-end torque. Easy and relatively cheap. Shortly after, I went to bigger and heavier wheels/tires so I can't isolate the cam timing change mileage effects.

01-20-2010, 01:33 PM	#12 (permalink)
beatr911 Master EcoModder Join Date: Feb 2008 Location: West Coast, USA Posts: 516 B2300 - '96 Mazda B2300 SE Focus - '05 Ford Focus ST The red car - '00 Honda Insight Thanks: 6 Thanked 77 Times in 56 Posts	The roller valve train is a popular mod for reducing friction, it certainly wouldn't hurt mileage iether. Piston and head ceramic and friction reducing coatings seem like a good idea for a high output engine. Helps control heat issues. They have DIY products these days so the cost may not be too bad. I'd try it if I was rebuilding. Be sure to play with cam timing. I advanced my Ford 2.3 OHC cam 9* and got a very noticeable boost in low-end torque. Easy and relatively cheap. Shortly after, I went to bigger and heavier wheels/tires so I can't isolate the cam timing change mileage effects. __________________ Good design is simple. Getting there isn't.