wah, ur top speed is 175km/h? how was the pulling power at 160kmh? thats really good weh haha
actually, i found that kelisa 1st gen and 2nd gen has different pipe size. what i did was i went to stranger's car and take a ruler and measure the diameter of tailpipe haha :D, if i assume same diameter across exhaust system, 1st gen is 1.3" and 2nd gen is 1.25". its actually not 1.4" as all people been talking
if sound is a concern, swap the muffler to bigger inlet one. i think marco's muffler is 1.6" inlet sflow. swap to 1.8" straight muffler. u should get better launch and sound too but powerband may shift a bit higher in rpm range from what u have now
personally, i like 1.4" pipe and straight flow for kelisa manual because with this setup, the car is snappy and you dont need to rev 4-5k during launching to feel the "g-force". 3k launch u got the g-force feeling d, perfect for fast and furious in bustling town traffic haha
if ur willing to wait, i have asked a pro in the states to help me in length tuning our kelisa intake and exhaust system for 3rd harmonic pressure wave. ive given all info about the stock engine to him (valve events, intake/exhaust port size, rod length, bore/stroke etc), the only holdback now is i havent got our valve stem and valve head diameter so im gonna go spare part shop and measure them. he will calculate using pipemax software which is famous among engine tuner in drag and circle track in the states because the software takes into account specific details of an engine to come up with an exhaust and intake spec
once ive got the result and check if the spec makes sense for road use, ill post it up for reference
---------- Post added 07-29-2011 at 12:03 AM ---------- 6 hour anti-bump limit - Previous post was 07-28-2011 at 11:46 PM ----------
campro cps try supercircuit brand. spec and quality looks top notch