turbo yes

[ryude]

Originally Posted by Dragonitti

If it's a supercharger, I would hope it would be a roots type.

I'm hoping it's twinscrew.

[mele63]

I'd love to see a factory-backed bolt-on supercharger package from TRD or SPT but I am skeptical due to the 12.5:1 compression ratio....meaning we may have to wait a few years for special model to come out.

[Ryephile]

Originally Posted by ryude

I'm hoping it's twinscrew.

I think his point was anything positive displacement. Twinscrew ~~ TVS >> classic Roots, of course. A centrifugal would be less desirable since boost is RPM proportional.

Since we're talking TRD here, roots is most likely, yes?

[ryude]

Originally Posted by Ryephile

I think his point was anything positive displacement. Twinscrew ~~ TVS >> classic Roots, of course. A centrifugal would be less desirable since boost is RPM proportional.

Since we're talking TRD here, roots is most likely, yes?

I've never seen TRD use anything except roots.

[Sabastian]

If they do a supercharged version, I hope it ends up being an actual factory model with bigger brakes, more aggressive suspension tuning, etc. I think I would much prefer that to an aftermarket bolt-on.

[cassidy0998]

definitely going to be roots if it's true. Toyota has offered them on many of their vehicles for years.

This would make sense - I've heard of people asking Toyota if there was going to be a turbocharged version of this car - their replies of "absolutely not" make more sense now.

I hope I'm not getting my hopes up for nothing though...

[Motordyne]

Originally Posted by ryude

I'm hoping it's twinscrew.

It will be.
Notice the article said it will greatly increase low end power.
TRD is already doing a lot of work with belt driven Eaton based superchargers.

[mokinbird87]

Twin scroll turbo set up would be what I want as it provides a flat torque curve and instant response...

[Infernal]

has anyone ever heard of someone supercharging a boxer/flat4 ?

[ryude]

Originally Posted by Motordyne

It will be.
Notice the article said it will greatly increase low end power.
TRD is already doing a lot of work with belt driven Eaton based superchargers.

Roots is a pump, it draws the air through the inlet, the air heats up against the casing causing heat\turbulence. Cheap to build, easy to tune, and tends to be more efficient at lower boost levels.


Twin Screw is a compressor, it draws the air through the inlet and compresses the air within the screws. Less heat\turbulence, more expensive, better at higher boost levels.

Twin screw has less parasitic loss compared to a Roots, but you're talking 5-10 HP in our power range.

OEM's use roots style because they are reliable and cheap.

TS are used in lots of after market and racing applications.

[Levi]

Originally Posted by mokinbird87

Twin scroll turbo set up would be what I want as it provides a flat torque curve and instant response...

WOW, TURBO and INSTANT RESPONSE in the same sentence. Tell me of any turbo engine that has throttle response as a naturally aspirated engine?

The best turboed cars - 911 Turbo, 1 Series M, M5 F10, MP4-12C - all have turbo lag and cannot match the responsivnes of 911 GT3, M3 E9X, LF-A, Ferrari.

A supercharger can be a better solution if you want more power without losing throttle response. Audi S4 with Supercharged V6 is a better car than BMW 335i with Turbocharged I6. However Audi handling sucks.

[youngxlos]

Everyone always talks about turbo lag... from my experience there is barely any lag, and its only noticeable wen I'm in like 6 gear in the highway and i put my foot down, takes about 1 second to hit boost then the car is off.
So unless your using a massive GT35R you'll barely notice lag, I have a GT2860RS and when i put my foot down the car goes, there is no lag, and I'm using 9.0:1 CR

Supercharging to me is stupid, it takes power to make power, turbos dont.
we can sit here and argue about it all day, its all personal preference if they make a factory supercharged good for them, ill still rather turbo mine.

[Jah1mon]

Originally Posted by youngxlos

Everyone always talks about turbo lag... from my experience there is barely any lag, and its only noticeable wen I'm in like 6 gear in the highway and i put my foot down, takes about 1 second to hit boost then the car is off.
So unless your using a massive GT35R you'll barely notice lag, I have a GT2860RS and when i put my foot down the car goes, there is no lag, and I'm using 9.0:1 CR

Supercharging to me is stupid, it takes power to make power, turbos dont.
we can sit here and argue about it all day, its all personal preference if they make a factory supercharged good for them, ill still rather turbo mine.

I couldn't agree more. Elimnating lag, or making it less noticeable takes the right compression ratio and proper turbo sizing. Both of which Subaru can match. I do hope they go this route with a Sti model.

[ryude]

All turbocharged cars have lag, whether you perceive it or not is not the argument.