PISTON METRO TURBO MEGA 9.4cr +40 ONLY 9.38cc DISH
P22357-40

£77.25 exc vat

£92.70 inc vat

In stockIn stock
Sold as a single piston and although for Turbos is from original Rover casting and tooling to run on 5psi turbo boost. Now with 9.38cc. They use our mega ringset C-AJJ3379-40.

If using more boost you need to be working on a lower CR with a total cylinder volume of 55cc in piston/block/head gasket and cylinder head.

Also when increasing boost pressures it is essential to have a modified ignition advance/retard curve to prevent detonation and ensure the inlet charge temperature does not exceed 40 degrees C by the fitment of a suitable intercooler.

If our advice is not followed it is very likley you will break the ring lands on your new pistons.

£77.25 exc vat

£92.70 inc vat

In stockIn stock

Recommended usage 1 x P22357-40 to fit one mini.
Block Components & Pistons - Qty 1

Kit contained products

Race quality Single piston ring pack for Mini Spares Evolution Pistons which also fits Mega and Omega pistons. This uses 3 piece oil ring 4mm and 2 of 1.2mm compression ring.



Sold per piston so 4 packs required per engine.

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What is the purpose of ACL Race series bearings?
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