Mahle Motorsport Forged Piston Kit - BMW M2 Competition, M3 and M4 3.0 S55 - M2 Competition (S55)

Absolute Performance Piston Set

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RRP: £1,415.76 (inc. VAT)

Our Price: £1415.76 (inc. VAT)

Fully Fitted: £1,415.76 (inc. VAT)

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Mahle Motorsport Forged Piston Kit - BMW M2 Competition, M3 and M4 3.0 S55 - Mahle

• The piston of choice for the very best engines
• Set of 6 pistons complete with rings & pins
• Optimized slipper skirt style forging
• Maximized top and second ring lands
• Hard anodized top ring groove
• Larger valve pockets to accommodate up to +1.0mm larger valve diameters
• 1mm deeper valve pockets for performance camshafts
• Steel nitrided 1.0mm top, 1.2mm napier 2nd & 2.8mm oil ring set
• Approximately 50g lighter than the factory piston
• Increased crown thickness for improved durability

BMW S55 3.0 Pistons don't get any better than the Mahle Motorsport PowerPak forged piston kit. 

Mahle's PowerPak piston assemblies include forged pistons, piston rings, pins, and wire locks--all in one race-proven package. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. Low drag rings, steel pins, and round wire locks to complete the Mahle PowerPak package.

Pumaspeed have built and prepared some very highly specified S55 engines in the U.K. For all motors running over 800 bhp we exclusively recommend the Mahle Motorsport piston range.

PowerPak piston sets are Mahle Motorsport’s high volume shelf stock program developed for high performance enthusiasts and engine builders that want uncompromising reliability. The forged piston kits are made from upgraded 2618 alloy for added strength and to allow for increased detonation resistance. 
 

Technical Specifications:
Model - BMW M2 Competition, M3 and M4
Engine - S55 3.0l
Bore - 84.00mm
Stroke - 89.60mm
Rod Length - 144.35mm
Compression Height - 32.4mm
Pin Diameter - 22mm
Crown Volume - (-)10.5cc
Piston Weight - 325g
Compression Ratio - 10.2:1
Ring Layout - 1.0, 1.2, 2.8mm

Mahle Motorsport are the undisputed technology leader in the piston field. With over 100 years of rich heritage Mahle Motorsport pistons have won championships at all levels, including Formula 1 seasons with 16 out of 18 race wins supporting six of the ten teams, nearly two decades of straight wins at Le Mans, and championships in all three top levels of NASCAR.

Strong, lightweight, low drag forging superior to the traditional full round design. Mahle Motorsport pistons are produced on German manufactured custom forgings per part.

Every Mahle Motorsport piston is machined to exacting tolerances with focused attention given to the radial flatness of the ring grooves. A flat ring groove is essential in achieving and maintaining the best seal possible. The quality of the ring grooves is so critical to peak and lasting performance, that Mahle designed and built the machinery used to machine the ring grooves for its Motorsport piston assemblies.

Mahle Motorsport proprietary Grafal anti-friction skirt coating is like no other on the market. It is graphite impregnated to reduce drag like many other skirt coatings, but this is where the similarities end. The screen print application provides superior adhesion and is designed to last 100,000+ miles. The unique properties of Grafal reduce the harsh contact between the piston skirt and cylinder bore, resulting in much less wear on the bore and significantly reduced piston skirt fatigue. A dry phosphate coating provides the signature grey appearance to the Mahle piston. This dry lubricant coating provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during initial start-up or break-in of engines to protect against galling and micro welding. The piston crown is still machinable. Hard anodised ring grooves provide extra protection against ring groove micro welding for extreme duty applications.

Piston failures can often be traced back to poor and inconsistent pin bore quality or design. The pin bores on every Mahle Motorsport piston are finish machined using CNC equipment specially designed and manufactured by Mahle to precisely control shape, size and alignment. This added control allows for advanced designs and flexibility, resulting in unmatched consistency and performance. Mahle manages every small detail with the type of precision and expertise you would expect from the worlds piston technology leader.

Every Mahle Motorsport piston is supplied as standard with a high strength, light weight, German manufactured gudgeon pin. Other manufacturers offer high strength pins as a cost upgrade, with Mahle they are supplied as standard.

Mahle pioneered the use of piston ring simulation and computer development tools to engineer rings that provide free horsepower by successfully minimizing friction. Mahles ultra flat ring flanks and precision finish also maximise ring to piston sealing. The difference is evident on the dyno and the track.

Please note these are supply only. Fitting is not available. 

Mahle Motorsport Forged Piston Kit - BMW M2 Competition, M3 and M4 3.0 S55

There is no fitting cost available for this product.

Pumaspeed Performance Distribution

Pumaspeed have a specialist distribution team that can dispatch the Mahle Motorsport Forged Piston Kit - BMW M2 Competition, M3 and M4 3.0 S55 to any destination worldwide.

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The Mahle Motorsport Forged Piston Kit - BMW M2 Competition, M3 and M4 3.0 S55 product has been listed by Pumaspeed as fitting the following vehicles:

M2 Competition (S55)

M3/M4 (S55)