Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Time to build a motor, what options have others found?

boarder1995 · 07-08-2014, 11:59 PM

I've got a fully functional stock, non-FI FA20 motor currently and am even running the cost numbers on various upgrade paths.
FA20 basis:
Turbo, ~$6k, 100+# weight
Supporting mods (clutch, driveshaft, oil cooler, fans, etc) $2k?, +50-100# weight?
Exhaust, $1k (already bought this)
Built motor once stock one is windowed, ~$6k, additional weight?
Max peak power = 700hp?, very peaky, not broad power. But, it's still a boxer FA20 motor!

LSx basis:
LS2 motor, $6k?, +100#?
LSx adapter kit, trans, $8k, +100#?
It's not a FA20 boxer motor, in a BRZ/FRS it's odd sounding, perhaps even kind of boring, but it's got easily 400-700+hp, with a broad power band with gobs of torque all over the place.

07-08-2014, 11:59 PM	#49
boarder1995 Senior Member Join Date: Jun 2012 Drives: 2013 Subie BRZ Limited, black, 6MT Location: Texas Posts: 125 Thanks: 38 Thanked 22 Times in 16 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I've got a fully functional stock, non-FI FA20 motor currently and am even running the cost numbers on various upgrade paths. FA20 basis: Turbo, ~$6k, 100+# weight Supporting mods (clutch, driveshaft, oil cooler, fans, etc) $2k?, +50-100# weight? Exhaust, $1k (already bought this) Built motor once stock one is windowed, ~$6k, additional weight? Max peak power = 700hp?, very peaky, not broad power. But, it's still a boxer FA20 motor! LSx basis: LS2 motor, $6k?, +100#? LSx adapter kit, trans, $8k, +100#? It's not a FA20 boxer motor, in a BRZ/FRS it's odd sounding, perhaps even kind of boring, but it's got easily 400-700+hp, with a broad power band with gobs of torque all over the place. Last edited by boarder1995; 07-09-2014 at 12:30 AM.