Honestly I'm pretty lazy to reply this as this clearly shows your lack in technical knowledge. But since it is already 5am in the wee hours and I need to waste some energy in order for me to sleep, here's my post.

What you need to know about pressure and density? Ideal Gas Law? Boyle's Law? Charle's Law? Seriously? And talking about intake, you say straight air intake won't draw in as much air as a 'bent' air intake? Those 4age's 1600cc are pushing more than 200hp with that setup and you're telling me it's not drawing enough air? Let's go to Jet engines then, direct ram air intake. Anything to say about that? It's still basically a 4 'process' engine as it still requires intake, compression, combustion and exhaust, just that it does it all at once. Air is sucked in direct from the atmosphere and it makes use of the ram effect at high speeds and altitudes.

You're saying the efficiency of a 2.0 NA will always be better than a Turbocharged 1.6L with the same power as a 2.0NA. Seems like you're missing the knowledge about volumetric efficiency here. Turbocharged cars will always be more efficient than NA engines as the turbocharger is harnessing energy from the exhaust which on an NA engine will be wasted, then using that energy and compressing air, forcing air into the cylinders, increasing it's volumetric efficiency. About FC, as long as you drive in vacuum during normal town drive your FC will remain the same or even better than when NA, and will definitely be better than one with a higher cubic capacity.

Reason we're comparing with a Vios is because the Vios is basically in the same category as a Forte, a basic everyday-drive point A-B car. If a Vios can be turbocharged, why not a Forte?

Yes I do know the function of a twin scroll and VGT, I'm just afraid that you don't. Seriously you're making a fool out of yourself saying 'wastegate-type' turbochargers are old school tech. ALL turbochargers used in petrol engines needs a wastegate else the boost level will just climb as the RPM increase until the engine kills itself from overboosting.

The way you're describing 'turbo lag' is as if you're describing a supercharger. Activates and deactivates? Bro, a turbocharger spins even when the engine is idling. When a turbocharger starts producing usable boost is a whole different thing, it doesn't 'activates' and 'deactivates'. Newer technologies can start producing usable boost at an earlier RPM than older turbo's with older technologies and hold that boost throughout a longer RPM range than an old-school turbo, but the way you describe it is totally wrong. What vents for low pressure and high pressure? All VGT does is changes the A/R ratio and exhaust flow in order to compensate for low-rpm and high-rpm driving thus creating boost at a lower RPM and then changing the nozzle angle to accomodate higher RPM operations. Some VGT Turbo's in Diesel applications do not require a wastegate as they don't rev that high anyways and does not produce that much gas flow but most petrol engines do. Volvo's VGT turbo's does have a wastegate built-in and a twin-scroll turbo definitely have a wastegate built in. They're taking technologies that had been long used in the aviation industry in jet engines and finally putting it to use in the automotive world.

For those who don't know what's VGT, HERE'S a simple description on what VGT is. For twin scroll, it divides the cylinder exhaust gas, thus seperating exhaust gas pulsations and improves the scavenging effect in a 4-stroke multi-cylinder engine. And yes there are also split to a small and large turbine for lower and higher engine rpm efficiency.

About your last paragraph, so basically a bolted-on turbo engine will die because it would choke the engine, eventhough with a turbo you're basically forcing air in? What a joke. I do agree that the wear and tear in a turbo engine would be slightly higher than an NA engine but with proper maintenance, both NA and turbo engines will last pretty damn long. What cleaning in specific are you talking about? Throttle body cleaning? top overhaul? Engine bay cleaning(LOL)?

Before you comment any further, do share what car are you driving and what car had you driven? Plus what had you modded on your car(or any cars) in that aspect? I see you have an atrocious reputation in AutoWorld forum i see

Anyways, good night.

talk like you are an expert

I doubt you know what pressure means and what purpose it serves in combustion engine. You don't know anything don't go and influence others to install turbo without consideration. You'll end up causing him killing the engine early and also causing him dearly should FC goes too high and his car lost resale value. Having wiring messed up could hardly get proper wireman to fix. Most of them can't fix, just to keep the electrical part barely functioning.

Yes, I owned and also maintained proper turbocharged engines and they come together with the SUVs, pickup trucks and cars. They were well made by Engineers that work for R&D in the respective brands, Ford, Hyundai, MMC, Toyota, Pug, etc.

Definitely not any Ah Beng with trial and error background that mod car like they think look like Need For Speed Underground or Fast & Furious means very good. They don't even know what pressure is. All they do, quote you custom ECU + intercooler + self made steel piping with style (not proper pressure calculation), normal wastegate turbocharger (prone to much lag), and have the diagnostic like machine to tell how much to boost. That's all. Nothing else, just tune according to how much the customer wanted. Then change large noisy & polluting exhaust. Final artwork, a car that would need to rev harder to move. Low end torque failed one.

What a bunch of modders that think those local modify workshop can come up with proper turbocharger that could generate optimum output, torque & FC? FYI, whatever those local modify workshops can do are limited to whatever custom kits they can bring in and tune from there. The piping are so badly done that they are not even as efficient as what car manufacturer can produce.

You can tune up the car to have more power but do not expect it to be as effective and efficient as those cars that come with turbocharger by default eg. Pug 508 1.6T, Mondeo 2.0T, BMW 2.0T, VW Passat 1.8T, etc. I call these cars that are sold with turbocharger well built with optimum efficiency. Optimum means able to focus on performance as well as FC & maintenance in long run.

Those owners who sent their non-turbo cars with NA engine to fit turbocharger at local modify workshops, those are nothing more than motorsport fun. In reality on FC saving or maintenance wise, they are nothing close to optimum.

Don't talk about Toyota, Honda turbocharger, they are not the best in this. You want to talk about efficient & optimum turbocharger, refer Ford, Pug, VW, BMW, Audi as these carmakers are more advanced in anyway. Japanese made are reliable but when comes to GDI engine, diesel engine, turbocharger/supercharger, NVH, handling and build quality, the conti are still ahead. Japanese made beat conti only in terms of sales, reliability & after sales service. They didn't beat conti in everything.

IMO..why turbo in an auto transmission car?

back to the topic... so any good suggestion to plant in turbo for my Forte as well? I can't be losing out to a Dugong..

AMG, Alpina, TRD, Mugen, AMS, etc, they are at least something like licensed modders in cooperation with carmakers. Therefore, these mods are professionally done as they done proper calculation and those air intake, exhaust, etc were done specifically for the make/models that they are made for.

We are talking about those who pull piping and install turbocharger, exhaust on their own here. If they only get 1 or 2 parts from TRD but the piping for air intake and exhaust are made of dunno where they get material, this is where the problem comes.

This is for those who still wanted to argue about ori Lancer GT '07-12 vs Inspira:
None of you bunch can tell the difference on the kerb weight Lancer GT 1385kg
compared to Inspira 16" rim 1335kg while with Inspira 17" rim + bodykit only at 1350kg. THis is not obvious enough on the difference. Stop taking the downgraded GT on website to compare. Who is the troll, you bunch ofcourse that rely so much on website. MMC technical department already hinted where the difference. If you bunch still unhappy and wanted to clarify further, check with MMC technical department. Why so afraid to check with them?

he only sworn by VGT and twin-scroll turbos from the peugeot, bmw, VW, Audi and etc. he say the conti more advance. but he didnt know the subaru are using twin scroll too. 

yeah i agree bro, it's old and rubbish.

i only changed the downpipe+exhaust, air filter+inlet hose and with it's stock ECU just remap with openECU together with the stock turbo...only manage to get 316whp/45kg torque from 250whp/36kg torque...really RUBBISH la!!!  

he only sworn by VGT and twin-scroll turbos from the peugeot, bmw, VW, Audi and etc. he say the conti more advance. but he didnt know the subaru are using twin scroll too. 

i think borg warners turbos are VGT too. mostly on golf gti, audi, focus st and etc.
vgt is good due to the variable vane in it for low end torque. but torque come too early isnt a great thing either. you lost your top end. golf gti lost their breath after 5k rpm. ntg is perfect, vgt is more expensive too, and this variable vane ought to get stuck by exhaust carbon, especially diesel engine.

V8 STi but that was long time ago

tuned by my mechanic...