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Kodename47 · 10-06-2016, 04:28 AM

Going from the MY17 BRZ document that was posted up here somewhere, the engine changes are:
Increased cylinder block rigidity
Greater piston durability
Changed valve stem finish
Improved roughness of camshaft journals
Optimized fuel pump drive cam
Optimized internal shape of rocker arm pivots
Changed shape of fuel system components
Changed fuel pressure sensor
Upgraded to next-generation fuel pump
Changed shape and material of intake manifold
Optimized flow channels of air intake system
Changed specifications of air cleaner element
Changed shape of EPF (Exhaust Manifold)
Changed material of EPC-R (Front Pipe)
Changed material and shape of exhaust pipe system
Changed specifications of cam angle sensor plate
Changed ECU hardware
Changed engine harness
Changed material of oil spacer
Changed specifications of alternator
Installed new battery condition sensor
Changed specifications of crank angle sensor
Changed shape of crank angle sensor plate
Changed diagnostic specifications of O2 sensor

So no, not many changes. My interested to see the intake system and exhaust manifold changes, both will probably end up being cheap to buy from those that replace them and might see some benefit. Also would like to see what change in O2 sensor, have they gone for a true WBO2 like many others do these days, or just changed the logic in the ECU?

10-06-2016, 04:28 AM	#7
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,632 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	Going from the MY17 BRZ document that was posted up here somewhere, the engine changes are: Increased cylinder block rigidity Greater piston durability Changed valve stem finish Improved roughness of camshaft journals Optimized fuel pump drive cam Optimized internal shape of rocker arm pivots Changed shape of fuel system components Changed fuel pressure sensor Upgraded to next-generation fuel pump Changed shape and material of intake manifold Optimized flow channels of air intake system Changed specifications of air cleaner element Changed shape of EPF (Exhaust Manifold) Changed material of EPC-R (Front Pipe) Changed material and shape of exhaust pipe system Changed specifications of cam angle sensor plate Changed ECU hardware Changed engine harness Changed material of oil spacer Changed specifications of alternator Installed new battery condition sensor Changed specifications of crank angle sensor Changed shape of crank angle sensor plate Changed diagnostic specifications of O2 sensor So no, not many changes. My interested to see the intake system and exhaust manifold changes, both will probably end up being cheap to buy from those that replace them and might see some benefit. Also would like to see what change in O2 sensor, have they gone for a true WBO2 like many others do these days, or just changed the logic in the ECU? __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook Last edited by Kodename47; 10-06-2016 at 12:40 PM.