New FR-S BRZ Technology Info! Engine specs, CoG, Drag Coefficient, Dimensions, etc.

[madfast]

Originally Posted by fred_boosted

My goal is 300 whp.

12.5:1 is still too high.

After market piston? 10:1? Is this possible?

Originally Posted by WingsofWar

people do aftermarket pistons all the time. especially to raise or lower cr

the only potential problem is the use of dished pistons to direct the DI spray when they use stratified charge for cold start. if we have full ecu control, perhaps we can turn off stratified charge, and thus no need for the dished pistons?

or we can hope for the aftermarket to fix things:

[Dave-ROR]

Originally Posted by fred_boosted

This will not stop me loving to build cars and DRIVING THEM!

Thanks for give me advices, I'm willing to learn from you guys! Always!

I just wouldn't expect any kits for awhile...

[Neutral_Eyes]

Great! 86 x 86 like I was hoping. Now, do we have forged internals?

[Dave-ROR]

Originally Posted by ryridesmotox

True... but when will that be? I'm guessing not long cuz with all these "leaks" Toyota has to know tuners and racers are going to use this car... and most of the racers will want to go FI so I see them "leaking" the ecu encoding fairly quick. Maybe they will even lower the compression a little bit.

I doubt they'll lower compression, doing so would reduce power too..

Toyota has been very strict on ECUs from what we've seen so I'm not convinced they'll open that up either.

I hope I'm wrong though. N/A builds benefit from it too

Hopefully it's not even a Toyota ECU, just a modified Subaru one :P

[skinsfn36]

As this will be my DD, and I'm sure many others, I'm still going to hope for a TRD FI option, I want this car and its warranty to last what its supposed to.

[madfast]

Originally Posted by Nurburgring

That dyno curve looks amazingly similar to the Honda F20C, albeit with lower rev limit and peak hp. Are we absolutely sure this engine is not running some form of variable cam lift?. I don´t mind, but I´m sure the press will bash it for "no torque" in every review, just like what happened with the S2000.

i've been looking around and it seems the 2GR-FSE also has the mid rpm dip in torque... on the promotional "dyno" only. on actual dyno runs, there isnt an obvious dip. so i attribute this to the scale of that "dyno". imo once we put this car on a real dyno, that tq curve should flatten out.

[skinsfn36]

Originally Posted by Dave-ROR

I doubt they'll lower compression, doing so would reduce power too..

Toyota has been very strict on ECUs from what we've seen so I'm not convinced they'll open that up either.

I hope I'm wrong though. N/A builds benefit from it too

Hopefully it's not even a Toyota ECU, just a modified Subaru one :P

I'm going to hope its a Subaru and Cobb can get their hands on it, but only time will tell.

[fred_boosted]

Ok, go head laugh at me.

[ryridesmotox]

Originally Posted by Dave-ROR

Agreed. But he was naming turbos in his post but probably doesn't even understand A/R, trim, etc.

You can easily throw a turbo kit on anything, but if you don't know how to do so you may have very unpleasant (or expensive :P ) results. That's all my point was.

True, but I'm sure most people don't understand that stuff... Most people think bigger is better. I'm thinking twin scroll turbo would be beastly on this motor.

[Ryephile]

Originally Posted by ryridesmotox

12.5:1 is retarded. You don't need that much for direct injection on a gasoline motor. And with that much compression they should be getting more power... something seems amiss.

Recall the FA20 is a cousin of the FB20, which only makes 140HP. Extracting 60 more HP while still meeting worldwide emissions with lowest-common-denominator fuel is quite an achievement. 12.5:1 static CR is nothing new; drag racers have been running over 13:1 with carburetors since at least the 60's. DI + 12.5:1 static CR is not terribly aggressive; other posters have already pointed out Mazda is doing 14:1 static CR with their Skyactiv engine, though they back it down to 13:1 for stupid garbage USA 87 octane.

[fred_boosted]

Originally Posted by Dave-ROR

I just wouldn't expect any kits for awhile...

Sure I can wait...

Not planning on doing custom stuff..

[tranzformer]

Originally Posted by ryridesmotox

True... but when will that be? I'm guessing not long cuz with all these "leaks" Toyota has to know tuners and racers are going to use this car... and most of the racers will want to go FI so I see them "leaking" the ecu encoding fairly quick. Maybe they will even lower the compression a little bit.

I know of racers that will prefer NA power over FI power. I think you are referring to the straight line 1/4 mile racers. This car isn't for that.

[Spaceywilly]

Originally Posted by ryridesmotox

Turbo builds are easy with the right parts... the hardest thing is making sure you have every piece you need all at once cuz once you start, your car is down until its 100% done... it takes a while too, I don't know how people think they can do a turbo upgrade in an hour and a half, lol yea right!

This is why I'm hoping it's cheap enough that I can keep my WRX. It gives you a lot more flexibility in projects if you have a second car up and running while the other one is down.

[Dave-ROR]

Originally Posted by fred_boosted

Ok, go head laugh at me.

Thank you.

I thought you guys are treat people gently like EVO and STi tunners did. But it seems not.

?

No one laughed at you. Your post spawned multiple conversations