add-ons

I don't think it would matter either way. I would think however that boxer engines may be more efficient by design. One thing is for certain- with the lower center of gravity you get a LITTLE BIT better handling and less roll-over risk.

 

subaru had some problems with piston slap in the EJ-25 back in the late 90s, but they fixed the problem pretty quickly. i haven't heard about any unusual wear due to configuration.

 

Great News...for me.

pistons are actually oval too. that reduces wear and friction.

 

Here's a nice little discussion about the development of the Boxer by Subaru.

http://www.mypersonaldrive.com/SubaruDrive-Sum02/Piston-Cranky.asp

 

Anyone know the rod length? The rod ratio, or the length of the rod divided by the stroke, greatly effects cylinder wall sideloading, and thus wear. Longer rod ratios are usually considered better. They also have effects on the VE of the motor, as different rod ratios have slightly different pistons positions at some crank angles (anything but TDC and BDC really).

 

Anyone know the rod length? The rod ratio, or the length of the rod divided by the stroke, greatly effects cylinder wall sideloading, and thus wear. Longer rod ratios are usually considered better. They also have effects on the VE of the motor, as different rod ratios have slightly different pistons positions at some crank angles (anything but TDC and BDC really).

porche seems to like this cofiguration, :wink: