ok a few things here, first the 170 has FOUR main bearings not three. granted it isnt the best set up with an inline engine, but it does well.
now on to turboing the 170;
1: first build the short block to handle the power. this means forged pistons, forged rods, and yes the factory forged steel rods frm the early motors will do nicely after polishing and shot peening, and adding stronger rods bolts from ARP. also balance and polish the crank.
2: prepare the head for turbo use as well, larger valves, port the valve pockets, install stainless steel valves and hardened seats and dont forget the ARP head studs.
3: turbo selection is important here, as well as whether you choose a draw through or blow through set up. you fuel system choice will also come into play here, carb or EFI. each has its pros and cons, let me know if you want me to elaborate on them. my choice if i decide to turbo my falcon 170 would be a blow through efi or a raw through carb set up. as for teh turbo itself, select one from an engine of similar size and base power out put, say the turbo from a stock early SVO mustang or tbird turbo coupe as these turbos would be a close match for the 170.
4: control your boost pressure. keep it no higher than about 10psi max boost pressure. that will push you poweres levels up pretty good and give you a safety margin for a daily driver.
5: installing a turbo isnt as hard as some make it out to be on an inline six, the stock exhaust manifold with a "J" pipe does a nice job. check this link for lots of good information on turbocharging the ford inline six;
now on to turboing the 170;
1: first build the short block to handle the power. this means forged pistons, forged rods, and yes the factory forged steel rods frm the early motors will do nicely after polishing and shot peening, and adding stronger rods bolts from ARP. also balance and polish the crank.
2: prepare the head for turbo use as well, larger valves, port the valve pockets, install stainless steel valves and hardened seats and dont forget the ARP head studs.
3: turbo selection is important here, as well as whether you choose a draw through or blow through set up. you fuel system choice will also come into play here, carb or EFI. each has its pros and cons, let me know if you want me to elaborate on them. my choice if i decide to turbo my falcon 170 would be a blow through efi or a raw through carb set up. as for teh turbo itself, select one from an engine of similar size and base power out put, say the turbo from a stock early SVO mustang or tbird turbo coupe as these turbos would be a close match for the 170.
4: control your boost pressure. keep it no higher than about 10psi max boost pressure. that will push you poweres levels up pretty good and give you a safety margin for a daily driver.
5: installing a turbo isnt as hard as some make it out to be on an inline six, the stock exhaust manifold with a "J" pipe does a nice job. check this link for lots of good information on turbocharging the ford inline six;
