WRXshaneWRX

iTrader: (1)

what if any increase in cc can be done with a 20ltr cdb? is that how ppl get the 2.2?

stevebt

iTrader: (8)

mine is sitting at 2.5ltr

WRXshaneWRX

iTrader: (1)

now thats interesting, what did you do? just new crank, rods and pistons?

911

The 2 litre CDB can be bored and fitted with a longer stroke Cranks to give the '2.2' engine (actually just over 2.1)
It can be stretched to 2.35 and beyond with custom liners.

The RA versionshave oil squirters to cool the underside of the pistons.

You can get CDB ripe for boring for about £200, but they will need mods for the late model cranks which have the end thrust bearings in a different place to the original crank.

WRXshaneWRX

iTrader: (1)

mine has the under piston sprayers already....i can get pistons and rods myself, but where is best to get the crank and work done, any ideas..also any ideas on costings for the work to get it to 2.5

stevebt

iTrader: (8)

The block was overbored from it's 2.0 to 2.5 and re-linered with high quality steel liners and honed for the (lateral) Wisco forged pistons giving 3 thou clearance. The rods are forged (lateral).
Bottom end is 2.5 crank blueprinted on ACL race series bearings. The block decks were checked and machined for flatness/trueness prior to build

911

WRX:
Mark at Lateral can do the block work as can several, but try David on Welcome to the API website for the machining and crank supply.