WILLALLRACING LUBBRICANTS ARRIVING SOON
WR35TM 10L GR6 Transmission Fluid -10L
In conjunction with transmission technology partner Borg Warner, Nissan developed their own special transmission fluid for the R35 GTR. It is costs around $100 US per litre (gearbox holds 10 litres), and needs to be changed often (every 1800 miles if the vehicle has had track day use). Many owners are finding this to be overly expensive and has gained the GTR a reputation as being extremely resource hungry when driven hard or in a competition environment. The Willall Racing plan was to develop a superior longer lasting lubricant that would slow gearbox wear to a near standstill and allow more conventional servicing schedules.
ANALYSIS
Nissan were correct in advising of regular changes, as samples we took from our test vehicle at the 1800 mile mark showed that (under Filtergram testing conditions) fine particles of metal, some as big as 200 microns existed within the transmission. The problem here is that small bits of metal, make more bits of metal, and the whole process results in spiralling and accelerated wear rates. Laboratory testing proved the factory GR6 fluid to provide very little high temperature lubrication, allowing metal to metal contact on the gear faces, creating premature wear conditions, and giving limited 'cushion' to first gear when Launch Control is activated.
DEVELOPMENT OF WR35TM
Blending and then testing a suitable high quality gear oil solution required a two pronged attack. Protecting the gears against wear and metal/metal contact was already well researched, but making this fluid then work correctly with the Borg Warner wet clutches and deliver factory feel through the driveline was the challenge. The perfect balance was achieved after extensive testing, with WR35TM delivering stock clutch feel, reduced gearbox noise, and lower operating temperatures. The best news though is that the wear rate of the gearbox was slowed over 150 times by reducing the metal/metal contact of the gears
ANALYSIS
Nissan were correct in advising of regular changes, as samples we took from our test vehicle at the 1800 mile mark showed that (under Filtergram testing conditions) fine particles of metal, some as big as 200 microns existed within the transmission. The problem here is that small bits of metal, make more bits of metal, and the whole process results in spiralling and accelerated wear rates. Laboratory testing proved the factory GR6 fluid to provide very little high temperature lubrication, allowing metal to metal contact on the gear faces, creating premature wear conditions, and giving limited 'cushion' to first gear when Launch Control is activated.
DEVELOPMENT OF WR35TM
Blending and then testing a suitable high quality gear oil solution required a two pronged attack. Protecting the gears against wear and metal/metal contact was already well researched, but making this fluid then work correctly with the Borg Warner wet clutches and deliver factory feel through the driveline was the challenge. The perfect balance was achieved after extensive testing, with WR35TM delivering stock clutch feel, reduced gearbox noise, and lower operating temperatures. The best news though is that the wear rate of the gearbox was slowed over 150 times by reducing the metal/metal contact of the gears
WR35DF 1L Diff Fluid -1L
WR35DF is a fully synthetic 75W-140 Limited Slip Differential fluid specifically developed and tested in the R35 GTR front and rear differential assemblies. Engineered to drastically reduce the amount of binding suffered in the rear differential during slow speed cornering (particularly under full cold conditions) WR35DF utilises unique Solid Boundary technology to smooth rear differential chatter and drastically slow the wear process that occurs in these differentials under track conditions.Top level protection is guaranteed for the front R35GTR differential which runs a critically low quantity of fluid from the factory and can suffer from extreme temperature rise. The low friction of WR35DF reduces temperature of the front differential dramatically and provides smooth and quiet operation under all conditions
WR35MO 10W60 Engine Oil 10L
High load track testing has enabled Willall Racing to formulate a specific oil blend for the R35 GTR and its unique Plasma Bore equipped VR38DETT engine. Aims of WR35MO development were centered on eliminating the R35 GTR tendency to use engine oil between changes, and protect the bore walls of the engine from premature wear. To do this WR35MO has over 15% greater film strength and viscosity at 100 degrees celcius (212F) than the standard oil resulting in better oil pressure under extreme conditions and greater engine protection.
The key benefits of switching the R35GTR to WR35MO are:
Tested and developed in an R35 GTR for R35 GTR applications
VR38DETT oil consumption eliminated
Much greater oil film strength at 100 degrees than factory fill
Plasma bore protection improved via increased oil film strength
Cooler oil temperatures due to friction reduction
Increased bearing life
Stable under wide environmental conditions
100% Synthetic
The key benefits of switching the R35GTR to WR35MO are:
Tested and developed in an R35 GTR for R35 GTR applications
VR38DETT oil consumption eliminated
Much greater oil film strength at 100 degrees than factory fill
Plasma bore protection improved via increased oil film strength
Cooler oil temperatures due to friction reduction
Increased bearing life
Stable under wide environmental conditions
100% Synthetic
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