A brief guide to the first stages of Silvia S12 Engine modification

[s13eater]

if you go on fj20.com, it will tell you what part you will need to stop chain rattle,its a ratchet tentioner off of an old mazda i think, the part number is on the site.i think if you give wayne at chipwizards a ring, then he could put you straight on tuning the n/a fj20, as he used to race one.