3,75 running great
AO Car Of The Year Winner 2015
Join Date: Dec 2003
I think the bore spacing is 90mm between cylinder axes so with standard 83mm bore you get just 7mm thick wall between cylinders.
AH Motorsport can suply you 84mm pistons so you should be able to get from 1970 ccm to 2016 ccm. Maybe you could go to even to 85mm to get something slightly close to 2,1 engine but not much further.
For 2,2 engine with 91mm stroke TS engine has you would need something like 88mm bore and thats not posible
I am not sure if I remember correctly, but AO user marko has a 2,1 TS with something like 200PS...
147GTA,Grigio Metallico,Imola leather,3.75l conversion,ported heads,F575 TB,Carbon plenum,Stainless manifolds,EQ pipes,Supersprint silenced cat back,18" GT multispokes,KW V3,Galfer 6pot 355mm,Brembo sport rear
147 1.6TS, Nerro,Beige Interior,Galfer Extreme Brake kit,2,0TS intake manifold,Custom ex. manifold,200CPI cat,Supersprint silenced center + OO backbox,GTA spoiler,GTA side skirts,GTA headlights,Blaupunkt LA MP74 + Focal + MacAudio + Dynamat + HERZ subwoofer