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NRW Design Aluminium Valve Cover Set (S65)

NRW Design Aluminium Valve Cover Set (S65)

NRW Design Aluminium Valve Cover Set (S65)

£1,440.00

In stock
0 out of 5

£1,440.00

Benefits of the NRW Design Valve Cover:

  • Aluminium is not microporous and will not oxidize or corrode
  • Aluminium is a proven material for valve covers used by many manufactures across many different models for decades. In fact, the BMW S85 V10 valve covers are aluminium (and do not leak)
  • 1:1 design means the NRW Design valve covers is an identical copy of the original S65 valve cover. All ancillary parts like gaskets, bolts, oil cap, cam sensors, plug tubes, oil separators, and coil packs work just like the original
  • Powder coated with choice of colours and finishes
  • Cheaper than the original BMW valve covers
  • Lifetime warranty!
  • BMW OEM oil filler cap included with every valve cover set!

For custom orders, please obtain your colour code from the Prismatic Coating Colours Site here, and add an order comment with your selected code.

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Description

NRW Design Aluminium S65 Valve Covers

Problem Statement:  The factory S65 valve covers are made from a Magnesium Alloy.  While very light, Mg is known to become microporous.  Over time gasses leak though the Mg material and form “pimples” on the valve cover surface.  As it worsens, these pimples start to corrode the material underneath the factory coating.  This continued cycle over time accelerates the oxidation of the covers leading them to fail and leak oil through the corroded areas of the valve cover.  Mainly between the gasket channels.  The Mg valve cover is notorious for leaking around the edge due to oxidation and corrosion to the material having contact with air and water vapor which can not be fixed with a simple gasket replacement.

Solution: NRW Design has created the first and only true 1:1 design aluminium valve cover for the BMW S65.

Benefits of the NRW Design Valve Cover:

  1. Aluminium is not microporous and will not oxidize or corrode
  2. Aluminium is a proven material for valve covers used by many manufactures across many different models for decades.  In fact, the BMW S85 V10 valve covers are aluminium (and do not leak)
  3. 1:1 design means the NRW Design valve covers is an identical copy of the original S65 valve cover.  All ancillary parts like gaskets, bolts, oil cap, cam sensors, plug tubes, oil separators, and coil packs work just like the original
  4. Powder coated with choice of colours and finishes
  5. Cheaper than the original BMW valve covers
  6. Lifetime warranty!

NRW Design valve covers are die casted from A383 alloy.  This material was chosen by NRW as it is a far superior aluminium alloy to others, due to its properties for this application.  Not all casts are the same and material choice is the big deciding factor for longevity and stability of a product.  Other companies claim their cast products have seen a 10x fold return due to issues using cast.  Yet their metal choice (6061) is the main reason for their issues.  The buying public hears the term 6061 aerospace grade and thinks it’s the far superior metal.  But 6061 is an extruded metal not recommended for all casting purposes.  The downfall is when making 6061 a molten metal and cooling it to a solid, it does not allow for grain structure formation, making it less suitable for casting.  Creating issues down the road such as cracks and weak metal that will fatigue much quicker.

NRW Design has been in the design process of an alternative valve cover for the S65 for some time now – way before any of these other companies started to appear on the radar.  They in fact looked at making a billet version first, coming up with several designs for these covers.  There appears to be at least 3 different companies around the world that have all come up with a design for their cover and if you look closely, you will see they all have something in common.  Its missing a huge design BMW included in their original design.  They are missing the high-pressure hump located almost midway down the cover close to the oil separators (PCV system). When the NRW Design, active Aerospace Engineers, examined this feature, it was clear it was there for a reason.  This is to help control pressures and oil blow by inside the valve cover.  Simply put it’s a vacuum pump design to help with pressures around the oil separators. This is something they felt could not be tampered with as it could affect the PCV system and or the reliability of your engine and its components.  These other companies are neglecting this main feature of the OEM design due to cutting cost by being able to use thinner material and less machining time.  If they were to incorporate this feature back into their design, their costs could almost 2x in material and machining cost.

That being said, NRW Design went to seek a different direction to solve the downfalls of the factory valve covers.  They chose the casting process for these covers as many covers in the industry are cast – including the S85 from BMW.  It’s been a method forming aluminium that goes all the way back to 1895 by a guy named William “Billy” Johnson.  This method is nothing new and has been mastered time and time again.   Over the past few months, we have worked on perfecting the method by working with our own CNC moulds to get the correct thickness and tolerances.  After the cast process, NRW then take it to our CNC shop where they QC and inspect for any discrepancies and imperfections.  Once QC is completed, they then chalk it up in their CNC machines where they mill out the spark plug holes as well as cam sensors and others.  NRW also go in and thread all the screw holes verifying each task.  Once they complete the CNC process, they then go back though yet another QC check, making sure each valve cover is ready to head to Powdercoating.  This is where its possible to customize the covers to the wishes of our customers.

NRW have independently had their covers tested for integrity, metallurgy, and material composition.  This was done to ensure that the product will hold up though the test of time without an issue to the end user.  NRW’s goal was to create a cost-effective product, that did not compromise the integrity of the engine and its components, and that solved the issues such as oxidation and corrosion of the factory valve covers all while giving the customer the ability to customize their valve covers.

We feel the NRW Design valve covers have reached and exceeded their goal to manufacturing an alternative solution to the factory covers.  NRW back this up with a lifetime warranty on all manufacturing issues associated with their covers.  Each cover is independently serialized and that allows NRW to track quality control as well as provide assurance that each set of covers is genuine.