6. God created turbolag, we created VGT, EFR, Twin Scroll, Plumb back BOV, ceramic wheels, ceramic bearings, ball bearings, billet wheels, ti-gamma wheels.

How do you arrive to the conclusion that turbo start spoolling at 1.4k rpm & instantly generate peak torque?

I langsung cannot brain your definition of turbo lag.

Well for the 1.4 TSI the peak torque does kick in around 1.4krpm to 2krpm IINM. Need to dig out my dyno graphs to show. But I agree, with these setups, it definitely runs out of breath at the higher top speeds.

to jayraptor's understanding, turbo basically "activate" itself at certain rpm set.

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.

I sort of think that he "Activated" us

Jaycraptheory never heard b4 meh? 1.4k rpm instant high speed spin, powered by jaycraptheology innovation vgthai from thailand with kerb weight of 50kg.

Nono, with his innovation, he means when u decelerate at 3.2k rpm and u wan to accelerate back, u will feel turbo lag becoz his system only.activate full speed boast at 1.4k rpm. Thus u need wait ur rpm drop back to 1.4k rpm first only u accelerate. Oo man.... u still need learn lot from jaycraptheory.

HAHAHAHAHAHA God created turbolag lolsssssss tak boley tahan lols

exactly what i had in mind. lol. to add on, VGT and twin scrolls turbos do not eliminate turbo lag, they only minimise it. there is still turbo lag no matter what. and when jayraptor said turbo "activates" after 1400rpm in his pug508 example, that's turbo lag before 1400rpm. and jayraptor, do u know this puny VGT turbos has it downside too? they tend to lose their breath earlier when approaching redline? 

to jayraptor's understanding, turbo basically "activate" itself at certain rpm set.

Awesome post but i doubt the fella understand anyway
Nothing much to add

Nono, with his innovation, he means when u decelerate at 3.2k rpm and u wan to accelerate back, u will feel turbo lag becoz his system only.activate full speed boast at 1.4k rpm. Thus u need wait ur rpm drop back to 1.4k rpm first only u accelerate. Oo man.... u still need learn lot from jaycraptheory.

I sort of think that he "Activated" us

hahahahahahahaha, pls stop making you more looking like a fool lah. i wonder have u ever own and maintain a turbo car your own. (dont tell me mere test drives) do you even ever mod a turbo car? do you ever understand how turbo works? omfg. LMAO!    

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.

lol. you and your "pressure" theory. my god. i dont know anything? its funny for you to ask a person with degree holder major in engineering that question. and since when i influence anyone to install bolt-on turbo in their ride in this thread? do not put words into my mouth you idiot. stop acting like you are some pro with your theory jargons based on engineers in those automotive companies. i have workshop owners and friends that are graduates in automotive engineering, ex-professional mechanics in various carmaker companies and trained professionals in car modding and tuning from overseas. stop acting smart but making a fool out of you here. 

Jason @ sleepwalker, if you reading this bro, pls look thru all his posts. deserve a holiday.

lol. you and your "pressure" theory. my god. i dont know anything? its funny for you to ask a person with degree holder major in engineering that question. and since when i influence anyone to install bolt-on turbo in their ride in this thread? do not put words into my mouth you idiot. stop acting like you are some pro with your theory jargons based on engineers in those automotive companies. i have workshop owners and friends that are graduates in automotive engineering, ex-professional mechanics in various carmaker companies and trained professionals in car modding and tuning from overseas. stop acting smart but making a fool out of you here. 

Jason @ sleepwalker, if you reading this bro, pls look thru all his posts. deserve a holiday.