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mangler · 12-05-2021, 11:51 AM

In a sea of misinformation, it is hard to keep track. For a while subaru.com had the BRZ compression ratio at 13.5:1. Subaru Canada now says 12.5:1. AFAIK the GR86 was always stated as 12.5:1. It seems unlikely (i.e. costly) that they would make the compression different on the twins. Does anyone have the final word on this?

12-05-2021, 11:51 AM	#1
mangler Member Join Date: Dec 2021 Drives: 2007 Saturn Vue Location: Ontario Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	BRZ engine compression 13.5:1 or 12.5:1? In a sea of misinformation, it is hard to keep track. For a while subaru.com had the BRZ compression ratio at 13.5:1. Subaru Canada now says 12.5:1. AFAIK the GR86 was always stated as 12.5:1. It seems unlikely (i.e. costly) that they would make the compression different on the twins. Does anyone have the final word on this?