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I swapped a V8 into my BRZ

Written By Ravi Maraj on Sunday, Oct 28, 2018 | 02:37 AM

 
Timelapse of my LS engine swap. Music is cheesy but pays homage from the video game that got me into cars when I was a kid, Sega GT2002. IG: @raviraviravi for more pics, vids, and general tomfoolery Some info: I bought my BRZ in 2013. After 5 years of FA20 life, I swapped in a dry-sumped, cammed, 6.2L LS3 from a Corvette and mated it to a short ratio Tremec T56 MagnumXL transmission. Total weight increase was ~100lbs, largely due to the transmission, maintaining roughly the same weight distribution as stock. I choose to run a 3-stage Aviaid dry sump system because this car will see heavy track abuse and I didn't want to deal with oil starvation. The 2.5 gallon dry sump tank sits behind the passenger seat in an enclosed aluminum firewall. The car dyno'd at 442whp/407lb-ft on 91 octane. It's enough power to make first and second gear unusable. I'm using a GM E38 ECU to manage the engine and the stock Subaru ECU to manage the body side. I fused together the stock corvette engine harness to the stock subaru harness using a CAN gateway unit, which allows for all body-side ECUs like EPS, Tach, Speedo, ABS, TCS, smart entry, etc to work like stock. Some notable timestamps: 0:05 - Rewiring the stock corvette engine harness to mesh with the subaru body 0:30 - Swapping our the trunnion bearings to solid brass bearings 0:42 - Swapping in a higher capacity fuel pump 1:12 - Fabricating a custom radiator mount (later modified to be angled) 1:19 - Engine assy 1:49 - Cutting out the trans tunnel brace (worst part of the swap) 2:34 - Engine trans going in 3:29 - Creating an adapter plate for the GM pedal 3:43 - Creating dry sump oil lines 3:59 - Harness integration 4:13 - Dry sump plumbing 5:10 - Engine start! Special thanks to: Brian, Patrick, Jose, Evan, Faizan, Cameron, Todd, Eric, and Michelle