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MINI - Reinforced engine parts
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MINI - Reinforced engine parts
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This category lists the trimetal connecting rod bearings available for the MINI 1.6 16-valve engine, code W10B16, fitted to the first-generation MINI Cooper and One.
Only one part family is stocked here today: a set of trimetal connecting rod bearings by ACL Race Series, in standard size and in repair sizes. Stronger than the original bearing, the trimetal shell is intended for tuned engines running under heavy load.
No other part family is listed for this engine code at present.
The N14B16 is a PSA-BMW Prince EP6D block, fitted to the MINI Cooper S R56 as well as the Peugeot 207 RC and Citroën DS3. This page covers the full build.
Block: DARTON MID liners, block guard, ARP head and main studs. Rotating assembly: SUPERTECH, WISECO or JE Pistons forged pistons, ZRP forged rods, forged crankshaft, KING RACING big end and main bearings. Cylinder head: SUPERTECH valves and guides, stem seals, uprated springs and retainers, sport camshafts, COMETIC head gasket. On the turbo side, TURBOSMART dump valve and wastegate actuator.
The N16B16 is the naturally aspirated version of the PSA-BMW Prince 1.6 16V block. Fifteen of the sixteen listings on this page are live.
Only one is specific to it: the WOSSNER forged piston set, offered in four versions depending on bore. The rest belong to the shared EP6 range listed from N12 to N18: ZRP forged rods, forged crankshaft, KING RACING big end, main and side bearings, ARP head studs, main studs and con rod bolts, SUPERTECH valves and guides, plus stem seals and valve springs.
The N18B16 powers the MINI Cooper S R56 and, as the PSA EP6, the Peugeot 207 RC, 208 GTI and RCZ as well as the Citroën DS3. Nineteen live listings on this page.
The heart of the page is the choice of forged pistons: four brands side by side, SUPERTECH, WOSSNER, WISECO and JE Pistons, in several bores and compression ratios. Around them, everything that holds the boost: COMETIC head gasket in several thicknesses, ARP head studs, ZRP forged rods, KING RACING bearings, SUPERTECH valves and guides, TURBOSMART dump valve and wastegate actuator.
This page gathers the parts for the W11B16, the supercharged 1.6 16v Tritec unit. The bottom end is rebuilt with forged pistons from WISECO, WOSSNER, JE PISTONS and SUPERTECH in 77.00mm, 77.50mm and 78.00mm, compression ratios of 8.3:1 and 8.5:1, a forged crankshaft and forged connecting rods, plus KING RACING big end bearings from standard to +0.50. The cylinder head takes SUPERTECH valves, springs, guides and stem seals, a COMETIC MLS gasket and ARP studs. ALTA Performance supercharger pulleys, NGK and MSD ignition, a SYTEC pump and POWERFLEX bushes complete the range.
This is the page for the B48 engine code, the direct injection 2.0 16v turbo four cylinder, sold as B48A20 and B48B20. The rotating assembly is rebuilt with forged pistons from JE PISTONS, WOSSNER and SUPERTECH, bores of 82.00mm and 82.50mm and compression ratios from 9.5:1 to 11:1, forged connecting rods and tri-metal big end bearings in standard, +0.025 and +0.25. The cylinder head is covered by uprated intake and exhaust valves, valve springs and stem seals. Clamping is handled by ARP head studs and main bearing studs.
The R53 built from 2001 to 2006 is the first modern MINI, based on the supercharged 1.6 16v Tritec W11B16A. This page gathers the NSB Concept stock for the whole generation, from the 163hp Cooper S to the 218hp John Cooper Works.
Pick your version in the sub-categories.
The R56 drops the R53 supercharger for the 1.6 16v Prince engine jointly developed by PSA and BMW, split into the N12, N14, N16 and N18 codes. Ten sub-categories separate the versions, from the naturally aspirated Cooper to the John Cooper Works GP.
Check your engine code before ordering.
Launched in 2015, the F56 is the only generation on this page to mix two engine layouts: the three-cylinder 1.5 turbo B38A15 of the 136hp Cooper and the four-cylinder 2.0 turbo B48 of the 192hp Cooper S and the 231hp John Cooper Works. Three sub-categories keep them apart.
Start from the right engine code in the sub-categories.
The N12B16 is the naturally aspirated 1.6 16V Prince engine of the MINI Cooper R55, R56 and R57. This page lists the ARP head fasteners reinforced for this engine.
Unleash the sporty character of your MINI with our exclusive range of high-performance forged engine parts. Turn your supercharged Cooper S R53 into a genuine hyped-up go-kart with forged WISECO pistons and ZRP connecting rods rated for over 250hp on the tough W11B16, or unlock your turbocharged Cooper S R56 Prince engine with JE PISTONS pistons and MANLEY Pro Series connecting rods to reach 300hp+ without compromising reliability. Owners of the new-generation F56 will find low-compression forged pistons, large-diameter SUPERTECH valves and CATCAMS camshafts to fully exploit the potential of the BMW B38/B48 engines. Our proven solutions turn even a standard Cooper into a genuine JCW GP killer.
Our exclusive three-click navigation makes configuring your bespoke MINI kit effortless. Prepare your R53 to relive the Monte Carlo spirit with 280hp, your R56 JCW to dominate track days at 350hp, or your F56 to outperform an official GP3. The W11B16 supercharged, N14/N18 Prince turbo and BMW B38/B48 engines all benefit from components proven in competition, with controlled power gains of 30 to 60%.
Enjoy Europe's best prices across the entire MINI performance range. Same-day dispatch before 5pm from our French stock, express delivery within 72 hours across Europe. Our technical expertise guarantees perfect fitment and optimal performance. MINI is a registered trademark. NSB Concept is an independent reseller. Check our configurator or contact our MINI specialists.
Q: Which pistons do you recommend for a 250hp Cooper S R53 supercharged build? A: Forged WISECO pistons, standard bore or +0.5mm, reinforced ZRP connecting rods with ARP2000 bolts — ideal for fully exploiting the Eaton supercharger's potential with a reduced pulley.
Q: Can your components handle a 350hp+ R56 N18 JCW build? A: Yes, combine forged JE PISTONS pistons at 8.5:1, MANLEY H-beam connecting rods, CATCAMS camshafts, ARP studs and KING Race bearings to make it reliable beyond 350hp with a hybrid turbo.
Q: Do you offer solutions for the new MINI F56 B38/B48? A: A complete range with bespoke forged pistons, BMW-compatible ZRP connecting rods, reinforced valves and SUPERTECH springs for Stage 2 and Stage 3 builds up to 300hp+.
