Originally Posted by
nigel b
k20 engine and box fits fine
gearboxes are weak when using a turbo
just need springs/retainers
standard engines take about 400bhp before you need the liners doing
twinscroll efr is the way to go but you need to run a big turbo as they are really efficient engines
standard engines with just cams and decent exhaust get you 250bhp
There's a boy on you tube running 430bhp on a 130k mile unrebuilt engine and does regular track days. He has recently fitted a bigger supercharger I think he was aiming high 400's. Incredible engine I have an ep3 as a daily and it's a great car so responsive like no other n/a car I've driven.