Subaru FA 20 engine internal modifications tips and traps with turbo and supercharger
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- Опубликовано: 2 июн 2014
- www.mrtperformance.com.au
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This model is supported by EcuteK factory ECU tuning software with the option of the Race Rom upgrade for added features.
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All these videos are so good, nobody does this. Truly, just wanted to say thank you.
thanks we appreciate your feedback :)
There's just something about an Australian explaining Subarus that adds legitimacy to their statements...
I hope the videoo helps
Brett your amazing and extremely knowledgeable. Thank you
I appreciate the information! Just what I was looking for! Great video !
Great vid. Following for sure. Thanks for posting. Will keep looking for updates.
Great to hear an Aussie accent pushing the envelope. Well done.
thanks we appreciate your feedback :)
thanks leant a lot waiting for more
thanks for an excellent demonstration
what your technical advice, if consider this engine for the experimental airplane
as you may well know, Subaru engine has a good reputation for auto-convert engine for general aviation
great information here thanks!
Thanks for the amazingly thorough video Brett. How good would the Harrop and the Cosworth bolt on Supercharger kits be with their own tune? Are they in the safe zone without needing engine mods?
Hey so I'm debating in my head what I should do. What are the main difference between having a machine shop do you cylinder heads or getting like an iag stage 4 cylinder head? Can the stock heads make around 600whp with a stage 3 block?
I have a question. I have a 09 wrx. Goal is 400whp. To maintain that power with reliability, will all I need is forged pistons and rods?
Hi dear thanks for posting good videos , I have a question if you can help
Do you think FB25 Subaru non turbo timing chains fit FA20 turbo Impreza WRX or not ?
If you answer, it might help me lots
What do you think price range is to change to forged pistons and rods
Hi i am located in america but i just baught a used fa 20 dit from a 15 wrx with 20k miles on it. Im looking to forge the pistons and close the deck. Do you have any advice on any manuals that i can order for installing the engine thank you.
So I've seen the BRZ, own an FRS and obviously know about the Toyota GT86, but I guess now there's a Toyoutar 86 probably somewhere in Australia I'm guessing. Lol, jokes aside, great video. Haven't got much info on upgrading FA20's engine internals elsewhere
One question for you.... What oil is in your shop cars?
Did you ever go over bearings for the FA20 build?
how available is this in the states? or do I need to ship to you
What would be the ideal oil temp for these FA20 engines ? Some people say 85c others say 85c is a little too cold for these engines and that 90c is ideal. What's your take on it ?
As always great video, that said why did subaru use such a ridiculously small oil filter, as small as my Kawasaki motorbike
I am wanting to boost my Gt86 but i am seeing so many videos of people blowing their cars up as shortly after boost. It is not making me super keen on boosting it.
So i understand this is an old video, however:
From what i gather to make the fa20 na boosted reliable you need the follow bits:
Oil cooler
Pistons with lower compression, and rods
Better cooling upgrades
Valves and retainers
Ive read things about the coil packs being bad on these cars too? Is that something you guys have discovered ?
What are the most common changes that needs to be made on the fa20 86/brz engine for an avo turbo kit?
bestcall us
nice work thanks
thanks we appreciate your feedback :)
How much did it all cost??
You mention upgrading to forged pistons. Is "piston slap" a concern? I'd like to know how you got around this phenomenon as it's apparently an aspect that's overlooked in daily driven cars with aftermarket forged pistons.
+PIK we have not seen any problems
How better?
having had a few years now with these engines, do you still feel the FA 20 used in the WRX (turbo applications) is a capable platform? long term, have you seen issues with the cam chain and components? Feel free to comment me offline if you like.
damn good engine!
Is it really critical to use oil 0w20?
My subaru is 2.5XS with the engine fb25b. Manual specifically says the 0w20 should be used on this engine. But some subaru technician say that instead of 0w20 can be used 5w30 even recommend (where I live weather is much colder than in Australia. During winter Temperature can drop below 25C). At the the moment my car runs on 5w30 and I replace the oil every 7k km. I'd like to hear you opinion on this moment.
UAMate Use 0w40 syn
Did you mean 25F? 25 Celsius is quite warm. Japanese FA20 recommendation is 0w20, the lower the number before the W (winter rating) the easier it is to startup in freezing weather and circulate. Full synthetic is best. Number after the W is the viscosity at high temperatures. If you drive with heavy load or on a track, a heavier oil is ok, but not too much especially is colder weather, because VVT depends on the oil. 5w-30 is ok to use as well.
You got me at "twin charged" :-D
Hi , how much HP i can charge my stock gt86 engine for daily driver and to be reliable without internal modification .Thanks.
2Fast 4U varies but general limit most people agree is safe is about 250-270bhp. You may can get 300 or more but I’m just giving you the safe number.
The perfect blend of Toyota and Subaru = FA
Hope to see a 2.5 FA style for the STI
dont hold your breath :(
Can't be bored past 2.1.
What's considered high boost for the bra frs fa20 engine?
thats a very broad question, we do know that the conrods are the weak point due to design, anything over stock boost they bend
:(
How much does it cost to build or strengthen an engine I have a turbo kit on my fa20 but I want to keep it from blowing
Ricardo Quezada you should be fine of you have the stock block and your under 340ish horsepower
The guy said to get stronger springs so i guess that but ive only seen rocker arms go out because of mis shifting and going into super high RPMs
You could still run the stock comp if you convert to e85. Or, and this is why I really hope subaru has the foresight to keep port injection possible on the head, you can run isoproptyl or deionized water through the port injection system and ramp up the pressure for the DI. 11-12:1 plus boost shouldn't be a pipe dream. You really shouldn't have to give up revs for boost, especially if, like you said, the motor is going to have a complex twin charging system. It's, IMO, giving away a lot to gain a little. You can run a snail with a efficiency curve way up in the rev range and torque-fill the low-end with your super, all you gotta do is rethink your fuelcharge.
It just sticks in my craw to see people chase power out of a DOHC system and run OHV rev-ranges. Less so in a flat4 or flat 6, but especially so in turbo v6s, especially 60 or 90 degree vee's. It's like, just adopt an inline 6 platform or a OHV v8 platform. You'll sound better and go farther. Looking at you Nissan and big german saloons.
I would like to get a solid 300Hp from my stock FA20 Toyota 86 Brett, any recommendations on which good components to do this?
Aussie MGTOW lolz buy the sbd 500x 300+hp with stocks engines and ecutek tune
@@ken6440 That is a good kit but I am after driveability, not just straight up power, the turbo has its place when it comes to outright racing but the superchargers handle a better curve range and they have linear acceleration.
Aussie MGTOW they also put more stress on the internals. But as far as superchargers go, the Harrop and Edlebrock are awesome.
@@IgoByaGo No arguments there on those SC's, they are very well made.
What fa20 was that? Brz or wrx?
Fizzy Elf BRZ the new wrx has the FA20T and that has a long block and a turbo mounted under the engine.
1: did the new valve springs help?
2" why didn't you take the plastic cover off the FA20?
3: how and where can I get the supercharge (initial spin)/turbo (final infinite gearing) kit for my 2014 XV? I'm already pushing 293 normally "aspirated' (GDI) on my homemade intake. What the heck y'all think it might do with your kits?
+Mike Murphy best call us
One of the biggest if not the biggest limit to your RPM is valve springs because they are responsible for getting the valves shut after being opened. If your spring cannot push the valve shut quickly enough, you get valve float where the piston head impacts the valves. So better springs will close them quickly, allowing your car to safely rev higher.
to bad these folks are in Australia. Any good shops like this in the us?
j.e.d. 80 Crawford Performance
There are tons here in USA. Check out MAP.
What's MAP?
"English Racing" hands down is the best shop for dsm and Subaru's.
Did he say $20,000 in mods in that STI engine? WTF??? Total race spec or what??
Aluminium... Aluminum. WHICH IS CORRECT???
neemguy81 Both
Aluminium
Naturally Aspirated ********************