Trying to get 170HP from a Cooper Engine

It is possible , Mini Mania UK has a customer who has obtained 228 bhp from the Cooper.

He used 4 throttle bodies,and reverted to a cable from the pedal, also used an aftermarket ECU from DTA in Manchester, ( Motec could also do this) , used the Minimania cylinder head with our big valves ,  he did however use titanium rods /crank  (custom,)  and a lot of other internals -pistons, rings, and he runs at  11000  rpm.

When finished he spent a lot of money to get 228hp

The bigger valve head and billet race cam (skimmed a bit for higher comp ratio) would push him close to 170 (stock rpm) -and would make more than this with raised rpm limit in remap 7200 rpm -this would require also

1 oil cooler

2 aluminium rad -too allow the 7200 excess heat

3 4-2-1 header

4 larger throttle body

increased springs in head and retainers-all available

I would also suggest light weight fly/clutch and use the S 6 speed

over 180 would result -(5 speed suffers around this mark)

intake manifold breathing restricts output to 180 ish -unless throttle bodies fitted

All reported from Adam at Mini Mania UK