Stock FA20 rods - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

BitusB · 02-25-2021, 11:10 AM

I’m leaning toward supercharging my future BRZ, and I’m wondering if the rods and other stock internal bits can handle around 50% increase in bhp and torque. Do the FA20D (BRZ) and FA20F (WRX) have the same engine aside from the turbo?

NoHaveMSG · 02-25-2021, 11:44 AM

Depends on what you are doing with the car and how hard you intend to drive it, supporting mods, fuel, ect.

There is a whole section of the forum dedicated to FI, maybe browse around different setups to get an idea.

The BRZ and WRX FA20's are not the same. WRX FA20 has stronger rods, low compression pistons(10:1 I think), bigger oil pump. It also does not have the Toyota D4S fuel injection system. It is direct injection only.

Milhouse86 · 02-25-2021, 11:51 AM

Why supercharger? Streetlight fun? Drag car? Road racing?

Sent from my Pixel 4 XL using Tapatalk

DarkPira7e · 02-25-2021, 12:44 PM

Keep low rpm load to a minimum (don't floor it under 3k rpm) and run under 300whp or 240wtq.

I'd you insist on a supercharger, go with a centrifugal unit and enjoy.
Check your oil level, keep on top of maintenance, and you'll be good

Irace86.2.0 · 02-25-2021, 08:15 PM

It depends on the car and the use, and maybe it depends on how much the car was seasoned before boost, but 50% more hp/torque is no problem. I’d imagine there is a fair number of us who are closer to having 100% more.

Decep · 02-25-2021, 08:18 PM

Spun bearings are far more common than broken rods. Caused by oil starvation and/or lack of maintenance.

Especially under 300whp.

mrntd · 02-25-2021, 10:13 PM

I’ve had my Edlebrock for a year and a half. I’ve had no issues at all. It recently dynoed at 287 whp. The driving experience is great. This is how it should be.

Decep · 02-25-2021, 10:49 PM

Year 2 with mine and almost 20k miles, problem free.

Total waste of money, but a lot of fun!

Goingnowherefast · 02-26-2021, 10:23 PM

If you don't track it, it's probably fine. If you track heavily it's gonna take a LOT of work to keep it alive..

02-25-2021, 11:10 AM	#1
BitusB Member Join Date: Feb 2021 Drives: 2020 BRZ rs Location: Kelowna BC Posts: 17 Thanks: 5 Thanked 4 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Stock FA20 rods I’m leaning toward supercharging my future BRZ, and I’m wondering if the rods and other stock internal bits can handle around 50% increase in bhp and torque. Do the FA20D (BRZ) and FA20F (WRX) have the same engine aside from the turbo?

02-25-2021, 11:51 AM	#3
Milhouse86 Noob Join Date: Oct 2013 Drives: 13' FRS, 13' F150, 17' A4, 69' 442 Location: MI Posts: 152 Thanks: 46 Thanked 102 Times in 57 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Why supercharger? Streetlight fun? Drag car? Road racing? Sent from my Pixel 4 XL using Tapatalk __________________ -2013 FRS/Black (Motor Blown/Under Construction) http://www.ft86club.com/forums/showthread.php?t=135599 -1979 Trans AM/Black (Sold) -1969 Olds 442/Orange with white racing stripes - 2017 Audi A4/Black

02-25-2021, 12:44 PM	#4
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,934 Thanks: 3,200 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Keep low rpm load to a minimum (don't floor it under 3k rpm) and run under 300whp or 240wtq. I'd you insist on a supercharger, go with a centrifugal unit and enjoy. Check your oil level, keep on top of maintenance, and you'll be good __________________ Turbo FR-S Build - Build Thread JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block

02-25-2021, 08:15 PM	#5
Irace86.2.0 Senior Member Join Date: Mar 2017 Drives: Q5 + BRZ + M796 Location: Santa Rosa, CA Posts: 7,884 Thanks: 5,668 Thanked 5,805 Times in 3,299 Posts Mentioned: 70 Post(s) Tagged: 0 Thread(s)	It depends on the car and the use, and maybe it depends on how much the car was seasoned before boost, but 50% more hp/torque is no problem. I’d imagine there is a fair number of us who are closer to having 100% more. __________________ My Build \| K24 Turbo Swap \| K24T BRZ SOLD

02-25-2021, 08:18 PM	#6
Decep Senior Member Join Date: May 2017 Drives: 2013 FR-S Series 10 Location: CA Posts: 1,073 Thanks: 172 Thanked 497 Times in 326 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Spun bearings are far more common than broken rods. Caused by oil starvation and/or lack of maintenance. Especially under 300whp. __________________ 2013 FR-S 10 Series ~75k (SOLD) RCE SS-1 Coilovers Corsa Catback Edelbrock Supercharger installed @ 50k

02-25-2021, 10:13 PM	#7
mrntd Member Join Date: Jan 2019 Drives: 2017 Series.yellow BRZ Location: Central Ohio Posts: 32 Thanks: 63 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I’ve had my Edlebrock for a year and a half. I’ve had no issues at all. It recently dynoed at 287 whp. The driving experience is great. This is how it should be.

02-25-2021, 10:49 PM	#8
Decep Senior Member Join Date: May 2017 Drives: 2013 FR-S Series 10 Location: CA Posts: 1,073 Thanks: 172 Thanked 497 Times in 326 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Year 2 with mine and almost 20k miles, problem free. Total waste of money, but a lot of fun! __________________ 2013 FR-S 10 Series ~75k (SOLD) RCE SS-1 Coilovers Corsa Catback Edelbrock Supercharger installed @ 50k

02-26-2021, 10:23 PM	#9
Goingnowherefast Senior Member Join Date: May 2019 Drives: AP2 S2000, 91 Miata 1.8L Rotrex 5MT Location: Detroit, MI Posts: 465 Thanks: 275 Thanked 299 Times in 187 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	If you don't track it, it's probably fine. If you track heavily it's gonna take a LOT of work to keep it alive.. __________________ 2022 Hyundai Elantra N 6MT SCCA TT S3//Will be back in an 86 eventually

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Stock FA20 Limits	RG4L	Forced Induction	52	01-09-2021 12:09 AM
machine work for forged rods with stock pistons?	Andew727	Engine, Exhaust, Transmission	17	07-27-2017 02:47 AM
FA20 Stock Capacity	Swivel	Engine, Exhaust, Transmission	143	04-08-2015 02:12 PM
WTB FA20 Stock	Cross	Want-To-Buy Requests	22	08-19-2014 02:59 PM
WTB FA20 Stock	Cross	Want-To-Buy Requests	1	08-01-2014 06:47 PM

User Name		Remember Me?
Password