Quote Originally Posted by yebo
it is what is called the "ferrari tune up". pedal to the metal all the way tune up. the guys at ferrari do it, hence the name. they say it works, cleaning not only the exhaust but also any deposits in the valves, pistons and cylinder head. so i do it once in a while but not really 200 kph but just almost to the red line of the engine, say put it in 3rd gear only. i do it at nlex and just keep it under 120 kph. and since my car is a/t then under 120 kph at 5500-6000 rpm means 3rd gear (invecs II kasi, pag 4th gear e 3200 rpm lang ang abot).

pag naka-neutral hindi pwede since the throttle will be partly open only. in fact you can red line the engine at neutral with the throttle only 1/3 open in most engines. dapat fully open throttle so there will be more exhaust gases to sput out the carbon.
Tama si sir yebo... don't do this in neutral. Best is a few third gear runs on the highway, and you should also let it decelerate in gear.

Better yet, go to the BRC during track days and RWYB competitions. Ten minutes on track will clean out everything.