Quote:
Originally Posted by bschloop
I saw that renault_megane_dci is opening up his exhaust ports, would this be likely to net me gains? I will definitely be at least cleaning and polishing them up a bit. along with the intake. since that costs nothing and can only make the engine run better.
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I think polishing the exhaust is good, but as I recall you should not polish the intake. I've heard of using offset woodruff keys to advance cam timing, but haven't ever used them myself. Look at the pickup coil or where it attaches to to see if you could advance the ignition timing - this I've done, but I probably wouldn't have if I hadn't had several sources on how much could be advanced and aftermarket stator plates were available for the engine as well.