Next Gen BRZ thoughts

[Broseph]

Originally Posted by Payload

Buy default the FA20 is capable of a bit over 300 hp+ without the use of a turbo or super charger.. The engine software just has to be tuned properly, that's all.. Investors in tunning hardware have already given us the key to unlock the performance output of this engine.. That's why they have not given us a turbo charger.. This engine already has a very high compression ratio 12.5/1.0 those are comparable to compression ratios of a bolt on super charger compressor.. There was no need for a turbo or super charger unless your drag racing the car or looking to put on and extra +175hp to the stock performance specs.. You'll just ruin the engine if your looking to put those gains on a stock engine.. So yeah, Toyota will have to start up another engine design from "scratch" to make sure its reliable and safe to their customers if your looking to get over +385 hp out of this FA20 engine..

Nope and nope.

[Payload]

According to a fuel injector calculator I used on line I'm getting about ~320 hp out of my engine.. It's a stock engine I didn't add any force induction compressors to the FA20 block.. All I did was pay about $400 for an openflash tunning tablet and I began researching and learning how to manipulate the software settings for the last 1.5 years...

[NoHaveMSG]

Originally Posted by Payload

According to a fuel injector calculator I used on line I'm getting about ~320 hp out of my engine.. It's a stock engine I didn't add any force induction compressors to the FA20 block.. All I did was pay about $400 for an openflash tunning tablet and I began researching and learning how to manipulate the software settings for the last 1.5 years...

Come out with that tune and sell it and you will be one rich mofo.

[Sapphireho]

Originally Posted by Payload

According to a fuel injector calculator I used on line I'm getting about ~320 hp out of my engine.. It's a stock engine I didn't add any force induction compressors to the FA20 block.. All I did was pay about $400 for an openflash tunning tablet and I began researching and learning how to manipulate the software settings for the last 1.5 years...

If you time the spark plugs you can push it to 380.

[The Red One]

"Again, where's this $45K coming from? I bet they could pull off a base model for $32K.. "


Easy, convert Can$
An impreza is a 2L WRX is 2.5 T . Up north we dish out a $12K for that.
BRZ RS 2020 is already at 38K now up here.

[Broseph]

Originally Posted by weederr33

If you're not worried about warranty, just spend some time reading around on the forced induction threads. There are plenty who have added a supercharger or turbo and enjoy it. There is literally hundreds of threads about adding FI and the supporting mods to do it. Idk why it has to come like that stock for you if you are not concerned with warranty. You'd be better off adding the kit of your choice and then going from there. Just don't get greedy for power. If you expect 350-500whp from this car like your beemers, it won't happen reliably brother.

THANK YOU for your sensible post man. Cheers to you.



Not looking for 500HP. I've had almost every semi-modern Subaru engine made - many Stg2 catless EJs, FA20DITs, now the FA24DIT in the Ascent (have an AccessPort on it already) and am very excited about that engine going into other platforms. STI being a big one.

I've always loved how the BRZ drives and it is such a funner platform over the bigger, taller, heavy, AWD drivetrain-loss WRXs/STIs I've had. Done with the EJ, been there, done that. I haven't owned one since I got rid of my RWD Bimmer.

Almost pulled the trigger on a new M2C and just not feeling the whole thing (not to mention they're currently untunable since BMW locked out the ECU and the S55s have the crank hub spin problem - could be a REAL big problem if tuned). Anyway, as soon as I heard a bunch of well-timed rumors about the new FA24DIT possibly going into the new twins, it got the gears turning again. Had no idea what a sensitive topic it was here as I've NEVER freakin' hung out on this site before besides random guest lurking over the past 8 years, despite people thinking I've had another account, lol.

[Payload]

In the summer time I tune the FA20 ecu btwn( 245-260)hp, because personally I want to keep this car running very well and it's to humid in NYC during summers, very humid/hot air reduces the performance output of any engine particularly this one because it had a higher compression ration than any 4 cylinder car on the market and that fact probably still stands valid today.. However, on the other hand in the fall/winter I've been tunning the engine between (280-320)hp because engines in general like to breath cold air and it's a more suitable performance environment, its like having being offered a natural cold intake reservoir, which results to suitable atmospheric conditions, espeacially when at high wind speeds..

[soundman98]

Originally Posted by bcj

Heard from other bench racers that have never driven one either.

Have another look at the torque curve.
Huge initial low torque that's ideal for city work and 1-2 gear corners in the hills.
I've had mine up at that altitude as well many times.
All I'm hearing is the Mo Powa trombone tune in a different key.

Hertzawurlitzer or whoever the CO dealer is was selling every one that they could latch onto.
They were selling deep into surrounding states too because they could cut the price closer than Scion with the one price deal.
The 9 to 1 production Toy to Sub didn't help the situation that much.

heuberger motors was the dealer.

they refused sell me a car because i wanted to go out there to pick it up, and they wouldn't accept the down payment to hold one of the most common colors on the market in the most commonconfiguration.

so they must've been selling well...

Originally Posted by NoHaveMSG

This doesn't use any special ram air intake now does it?

blast from the past!

Originally Posted by NoHaveMSG

Thanks I have never seen a base WRX before most are mid spec 34-35K

All I am saying is it doesn't make sense for a turbo car. That is all anyone is saying. The only person being defensive and emotional about it is you. Pardon us for being a bit jaded about the subject. It's only been argued for the last 8 years. I personally don't even believe we will get an FA/FB24 based engine in the next car. Not that it maters, I will keep beating on mine until it meets it's demise.

[ame]https://www.youtube.com/watch?v=aQNGUzDgzmI&t=61s[/ame]

[86MLR]

Originally Posted by Broseph

Well, if they do end up turbocharging it, heads are going to explode here.
It’s going to be messy for sure.

Fingers crossed.

Mine is turbo 🤯🤯🤯🤯🤯🤯🤯

[NoHaveMSG]

Originally Posted by Broseph

THANK YOU for your sensible post man. Cheers to you.



Not looking for 500HP. I've had almost every semi-modern Subaru engine made - many Stg2 catless EJs, FA20DITs, now the FA24DIT in the Ascent (have an AccessPort on it already) and am very excited about that engine going into other platforms. STI being a big one.

I've always loved how the BRZ drives and it is such a funner platform over the bigger, taller, heavy, AWD drivetrain-loss WRXs/STIs I've had. Done with the EJ, been there, done that. I haven't owned one since I got rid of my RWD Bimmer.

Almost pulled the trigger on a new M2C and just not feeling the whole thing (not to mention they're currently untunable since BMW locked out the ECU and the S55s have the crank hub spin problem - could be a REAL big problem if tuned). Anyway, as soon as I heard a bunch of well-timed rumors about the new FA24DIT possibly going into the new twins, it got the gears turning again. Had no idea what a sensitive topic it was here as I've NEVER freakin' hung out on this site before besides random guest lurking over the past 8 years, despite people thinking I've had another account, lol.

You do know the FA has oiling issues?

Search "FA20 oiling" and "oil pressure" on this forum. Tons of threads of people who have been trying to fix it. I have a larger pickup going in my spare motor.

Even NA. That is what stopped me from slapping a turbo on mine.

[Payload]

Yea you deffinitely can get it up to +380 hp with a stock FA20 block but if your using stock port injectors your duty cycle will definitely be around or over 85% and according to fuel injector guide installions it's noted that the duty cycle should be at (X<=80)% or (X<= 75)% under safe operating conditions. I was informed in a forum i read about 1.5 years ago on this ft86club site by a guy, he had test studies and to back it up he posted graphs attached to his comments that our stock port injectors are operating at approximately 54% .. So it would be wise to shop around and by new port fuel injectors that are rated for 350cc/min or greater.. I'm operating my vechicles fuel injectors at a duty cycle of approximately 71%, with these stock port injectors this may be the highest duty cycle I'm willing to push my stock port injectors under my ecu tune..

[KR-S]

Originally Posted by Payload

Yea you deffinitely can get it up to +380 hp with a stock FA20 block but if your using stock port injectors your duty cycle will definitely be around or over 85% and according to fuel injector guide installions it's noted that the duty cycle should be at (X<=80)% or (X<= 75)% under safe operating conditions. I was informed in a forum with test studies to back it up with graphs attached that out stock port injectors are operating at approximately 54% .. So it would be wise to shop around and by new port fuel injectors that are rated for 350cc/min or greater.. I'm operating my vechicles fuel injectors at a duty cycle of approximately 71%, with these stock port injectors this may be the highest duty cycle I'm willing to push my stock port injectors under my ecu tune..

You're so convinced that you're making 300+ hp... why not take your car to a reputable dyno and prove it? It doesn't take a genius to figure out that you're not going to make the numbers you claim with an N/A Subaru 4.

[Payload]

Well it's more expensive and that's why manufacturers have these websites so you can make a quicker decision which is safe and conservative so a buyer will not have to waste extra time and money trying figure out if they should buy a particular aftermarket part because a lot of testing had to be done to insure the performance of the mod and its already done for you, in this way it's faster to calculate horsepower and torque rating so you can buy their fuel pumps and injectors without feeling as if you bought a product that will ruin your car.. I daily drive my scion frs 2013 and I have over 120k I'm trying to cut cost and enjoy myself.. One day I will dyno test it, when I get another gt86, kinda need two of these cars in my six years of having one.. Just to dedicate one gt86 for track driving purposes..

[Payload]

Lol, I was unsure of this as well, now I'm convinced, I feel the difference when I drive it, with just a good tune and no added force induction bolt -ons you just can't get rid of low torque output in the beginning stages of the lower end techcometer gauge, that's the big part of what it means to have a naturally aspirated high compression ratio engine, its so you can feel every bang for your buck, from the low very low end to the highest end until you reach the top of changing to the next gear or gearing up. I usually change it at 5,000rpm or 5,500rpm when I'm driving to feel the performance of it on an expressway..Once you work your way up through 4,500rpm and beyond the torque pull from the momentum and sound of this engine becomes so much more intense than the stock settings.. If you had a turbo version I imagine that the torque I feel at 4,800 rpm would be well noted at numbers approx. to (2,700-3000)rpm. In a turbo driven car because of boost you get higher torque ratings earlier which gives you a vantage point in horse power gains but boost doesn't last forever espeacially when it has to re-spool time and time again ..