PPM-RACING Custom 4032 Forged Pistons for BMW N54 Turbo Engines.
PPM is proud to release the product you have all been asking for! Our new range of PPM pistons compliment our existing con rod lineup and are a must for your high power engine build. Specifically designed for professional racers, our pistons are ready to cope with the stresses of high compression, high RPM and mega boost. Our engineers have combined the highest quality alloys, the very latest forging & machining technologies and then topped it all off with cutting edge coatings. The result is best pistons on the market, ready for any abuse you can throw at them.
Pistons forged from 4032 grade aluminum alloy CNC machine pins Each piston de burred by hand Machined ring grooves for low-drag, light-weight rings Asymmetrical valve pockets Precision milling for maximum weight savings without compromising strength Anti-friction coating skirt coating reduces drag, scuffing, friction and cylinder bore wear Phosphate coated (read more below) High performance rings, H13 Heavy Duty Pins & locks included in piston kits
PPM's forged pistons phosphate coating gives the gray appearance. This is a dry lubricant coating which is permanently bonded to the piston surface, as opposed to a thermal film coating which can wear off.
This phosphate coating provides a lubrication to the pin bores and ring grooves until the engine oil reaches operating temperature, most importantly during cold start scenarios, protecting against galling and micro-welding.
Compression Ratio like OEM 10.2:1or for Big Boost 9.5:1
Piston Available Size OEM 84mm, 84.50mm, 85mm, 85.5mm, 86mm
These are made to order and manufacturing time is 6-8 Weeks.