g'day all,
i thought i'd see what some of the knowledgable people on this forum thought of porting and polishing heads *looks at sydneykid*
The reason for this is a mate of mine with an NA Z32 300zx is looking for a bit more guts out of his engine and came across the idea of getting this done.
for the record his mods are: exhaust (headers + cat-back), filter, ecu re-tune.
For the proting itself, what do people reccommend? ie changing valve sizes and complete job, or just a bit of a port? keep in mind this is regarding a non-turbo car...
and what kind of power gains are to be expected on a car putting about 150rwkw at the moment?
For the price one would pay is porting worth it? how much is a good price keeping in mind that its a V6 and there is 2 x heads... I think he had a quote of about 1200 but that included changing to bigger valves i think.
when i heard this i thought a cheaper and also effective idea might be to shave the head for better compression? your thoughts? power increases?
sorry for the abundance of questions but i'd love to hear a bit from everyone as this is something that not many consider (generally better mode for turbo cars bang-for-your-buck wise) and i know its a more intricate process on NA cars...
i also read page 76 in HIP #37 which as porting an SR20DE and that was heaps of help.
cheers,
Waz.