I am new to this forum. I eventually stumbled apon this forum after looking for some info on my Mazda 616. Hopefully i can get some info and tips on my rebuild. I can't really find a lot of info about this car. Especially not the 1.6 na engine. It seems that most people do a rotary conversion.
I bought a 1971 Mazda 616 4 door about 2 months ago. I want to use the car for gymkhana racing as well as some fun on the road. I do not want to cut it apart and build a full race car as that would just be stupid and a waste of a fairly good body.
My plan is to restore the car to a fairly original looking state, with some small subtle changes and some engine and suspension mods underneath the skin. basically a classic car with that i can also use for some fun
The car still has the original 1.6 4 cyl na engine in. It had a terrible knock!! So cant be used as is.
The gymkhana class that I want to compete in is up to 2L normally aspirated rwd. The obvious choice would be to put a 2L 16V engine in, BUT I want to use the car as a hobby and have fun with it without ruining my bank balance completely.
I decided for now to just rebuilt the original motor and modify it a bit to get more power. Maybe in the future when the rest of the car is sorted out I can do an engine transplant.
So far i have found absolutely no info or performance "advice" on the 1.6 engine. So i am following the "normal" route of mods... higher compression, bigger carburettor, head port and flow, branch, freeflow exhaust, ballance and cam. I hope this all works good together.
I will post some pics of what i have done so far.