MINI R56 N14 JCW Big Turbo Engine
One of our latest projects was this MINI R56 N14 engine which was rebuilt to a very high specification to take a big turbo kit. This was achieved by using lower compression CP pistons and a closed deck block to be able to handle much higher cylinder pressures. This build can easily handle 400+ hp in it’s current form. Full engine spec is below…
ZRP connecting rods
CP Carillo 10:1 pistons
King bearings
ARP main and head stud kit
Cometic MLS head gasket
Ported cylinder head
Supertech valve springs
G&S custom +0.5mm inlet valves
G&S custom Nimonic exhaust valves
G&S spring retainers and collets
Catcams camshafts
Genuine MINI timing chain kit
Genuine MINI rocker arms and lifters
Genuine MINI oil pump
The Engine Lab oil pump chain tensioner
Cerakote and heat wrapped sump
MINI R56 N14 Cooper S Rebuild
This MINI R56 N14 Cooper S engine came into us with a low oil pressure issues after it had been ‘rebuilt’. After a full strip down of the engine we found many issues including a clogged oil pump, worn out camshaft journals, excessive crankshaft end float, excessive piston to cylinder clearance, etc.
After a complete rebuild using Wiseco 77.50mm pistons and ZRP connecting rods, this N14 is ready for another 100k plus miles!
