Originally posted by asd
hey, hows the rs-5?
is it much faster than the rs12?
It's difficult to tell by words.....
OK,I will try to answer you by my poor english.
No matter 3-port or 5-port,their max HP should be the same.
HP is depend on how many rpm they can reach.So,mod 3-port may faster than 5-port engine without modify.The most difference between 3-port and 5-port is the reaction in low-mid rpm.5-port engines have more prompt reaction in low-mid rpm.
But if a mod 5-port meet mod 3-port .......
There are many people modify their engines in Taiwan.
Maybe you can DIY too.