Lohen Forged Crate Engine N14 - Config 1

Lohen recommends this engine configuration for MINI owners who wish to refresh their old engine or improve the reliability of their current stock N14 MINI engine by replacing items that have a history of failure for high-quality alternatives.

About Lohen Crate Engines

Lohen has used experience and knowledge of the MINI N14 engine (EP6 engine platform) to produce a remanufactured performance Crate Engine that strengthens the areas we see as common failure points. The Lohen N14 Crate Engine is suitable for the MINI Cooper S 2007 – 2010 or MINI JCW 2007 – 2012 and is supplied on an exchange basis.

All engines are re-built in-house by Lohen to OEM or higher specification (based on the components used) from donor units that have been checked for tolerances and overall condition. Cylinder bores are checked for ovality and are either honed or bored-and-honed for the right size piston to the correct tolerance. Cranks are checked for size, wear, and damage before they are re-used and, where appropriate.

The Lohen Configuration 1 engine uses Forged Pistons and connecting rods to strengthen the bottom end of the engine. The N14 short block is assembled using new piston rings, Mahle Motorsport bearings throughout as well as ARP bolt and stud kits.

Heads are checked for straightness, then pressure tested as well as having the cam tolerances checked. They are reassembled with OEM specification components such as Intake Valves and exhaust Valves, and all rockers and lifted are changed.

All engine components such as the block and cylinder head are thoroughly cleaned and prepared prior to assembly and all engines are re-assembled using brand new gaskets, seals, and chains.

Please note - Lohen Crate Engines are supplied as timed-up bare units without any other bolt-on ancillaries. The engines are therefore shipped dry and require final assembly and fluids prior to installation and starting.

If required, Lohen can supply a fully built engine for an additional charge. We also offer professional in-house installation and running in service at our workshop.

Exchange Donor Unit Surcharge
Lohen will apply a surcharge to every engine sold unless a donor unit is supplied and it is deemed to be in rebuildable condition.

Optional Extras

Lohen offers a range of extras to a selection of Lohen Forged engines to allow customisation.

N14 Engine Installation kit is suggested when installing a Lohen Crate Engine. Click Here For full details about the Lohen N14 Crate Engine Installation Kit - in summary, this includes 1 x running in oil, 2 x engine oil changes. oil filters, gaskets, coolant, water pump, thermostat, oil pressure sensor, necessary bolts.

Crank Shaft Balancing and piston matching
Balancing the crankshaft is important when building a performance engine. Weight out of balance from the centre point has a direct relationship to engine speed so, for those pushing the MINI engine harder, it is vital the crankshaft is balanced to improve the durability of the engine and, in particular, the engine bearings, reducing engine vibration and improving performance. We suggest that this process is completed using a single mass flywheel.

Choice of Camshaft
Lohen offers MINI OEM camshafts as standard but this can be upgraded to the Schrick performance inlet and exhaust camshafts. The Schrick camshafts are profiled to increase the duration the valves are open. This increases the volume of air and fuel entering the cylinders and allows for a greater amount of power to be developed. When selecting the Schrick camshaft option, please note Supertech titanium retainers will be substituted for the Schrick made option to run with the camshaft. This is reflected in the pricing for the Schrick camshafts.

• Supertech Forged Pistons 
• Supertech Piston Ring Sets
• Supertech Forged Connecting Rods
• ARP 2000 Connecting rod bolts
• ARP 2000 Head stud kit
• ARP 2000 Main bolt kit
• Mahle Motorsport Big end bearings
• Mahle Motorsport Main bearings
• OEM specification intake valves
• OEM specification exhaust valves
• Supertech bronze valve guides
• OEM specification rocker arms and lifters
• MINI valve springs
• Timing chain kit
• Lohen gasket kit
• OEM oil pump 
• Rocker Cover

Lohen offers professional, in-house fitting for all products at our workshop in Eccleshall, Staffordshire. Here are the important things you need to know:

Fitting Cost - £1500. Includes installation and running on the dyno. 

Fitting Time - 20 hours

Required Additional Items/Services - N14 Engine Installation kit is suggested when installing a Lohen Crate Engine. Click Here For full details about the Lohen N14 Crate Engine Installation Kit - in summary, this includes 1 x running in oil, 2 x engine oil changes. oil filters, gaskets, coolant, water pump, thermostat, oil pressure sensor, necessary bolts. 

Lohen Recommends - Inspecting clutch and flywheel operation while the engine and gearbox are out and replacing as necessary. It's also an ideal time to add a differential for a performance upgrade. Consider the Quaife ATB for road and track day use or the 3J Driveline LSD for track specific work. 

Why do we apply a surcharge?
A surcharge is charged because Lohen recondition and re-use certain components, such as the head, crank and the crank case. We do this to reduce costs to customer and components will only be used if they pass strict inspection criteria. Any wearable components are completely replaced in the upgrade process.

How it works
The surcharge applies when a donor engine is not supplied back to Lohen or the condition of the donor engine is deemed by Lohen to be beyond re-buildable (i.e. major damage to head, crank, block bores or external parts of the engine.)

Once the donor engine is received Lohen will assess and measure the unit for tolerances and issue any appropriate refund of the surcharge within 7-10 working days. Should certain components within the donor engine be deemed unusable the surcharge will be only partially refunded. Please contact the sales team for full information.