>>248621Also,
V4 is not an engine layout. (Well, it is but I can almost gaurentee unless you've played with old Puegots or 1950-1960 era 2-stroke Saabs that you've never seen one).
4 cylinder cars these days use what's called an INLINE layout, as in all the cylinders are arranged in a strait line.
Your Subaru has what's called a HORIZONTAL layout motor, or a BOXER as it's sometimes called (usually when specifically referring to Subarus, but not always)
So, we've got Vs, inlines, and horizontals.
A "V" engine is just an inline that has been split in two and bent at the bottom, so the cylinder banks create the "V" in question.
A horizontal engine, is just an overstretched "V" engine, where instead of the cylinders being arranged strait up and down, or slightly angled outwards, they move in a (You guessed it) Horizontal fashion, or flat on their sides.
This all has to do with balancing the engine, see all the pistons don't move at the same time to the same places with eachother. They're all offset in different orders to be in different places at different times so as to provide a counter-balance to the shaking/torquing forces created by the piston flying through the cylinder.
If you cared enough to do the mathematics to discover how you would "Time" the engine (Decide when which pistons will be where and when they will fire) a "V4" engine, you'll quickly discover that your balance will never be perfect and the motor will shake itself to bits.
So how to you combat this? Easily! Keep banking those cylinders over until they are flat on their sides, and the forces begin to cancel themselves out and you have a smoother running engine.
Technical rant achieved.
Tl;Dr: You don't have a v4, you have a boxer-4, horizontal-4, or flat-4. Get it right.
