Quote:
Originally Posted by m21sniper
Doesn't matter because the AFR stays the same regardless. A clogged filter allows the motor to pump less air, but the puter simply compensates by squirting less fuel.
They've done tests you know.  |
Why it is true the AFR stays the same (I am not debating that) the pumping efficiency decreases. This in turn decreases the thermodynamic efficiency which in turn decreases the efficiency of the engine (mass flow being equal for "dirty" filter vs. "clean" filter)
Take a garden hose and suck on one end of it while the other end is free of obstruction. Then take your sock, coat it with dirt and mud, tie it on the end of the garden hose and suck on the free end. You will have to "work" harder sucking on the garden hose in scenario II to get the same amount of mass flow. The increased "work" or energy exerted for the same effect will reduce your "sucking" efficiency.
Oh boy this is getting too detailed
Speedy
__________________
1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party
1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II
Check on progress --->
www.porschehybrids.com/gallery/speedracing944
Favorite Road =
www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run)