looking for small improvements

[spocksleftball]

Originally Posted by Viperoni

After spending 5 minutes on google, here's a dyno of a full pulley set that gained a maximum of 4.5hp on a civic:
http://www.importtuner.com/powerpage...s/viewall.html

I have a lightweight flywheel waiting to go on, but im personally not sold on pulleys for two reasons:
1) the weight is already fairly close to the center, compared to a flywheel
2) You lose the harmonic dampener, if the OEM pulley has one (not sure if this is the case for the Yaris)

Exactly so. A few ounces of pulley weight mean nothing. Flywheel I get, but I am not ser up to go into the engine here in condo rules land. I am considering the header, but without the midpipe this is another boondoggle.