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 Kia Optima GT 2017 at rm179k

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Remnant_T
post Jul 22 2017, 05:41 PM

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QUOTE(dares @ Jul 22 2017, 05:10 PM)
Even the throttle butterfly valve comes after the intercooler, not before the turbo.

We misundersood liao, it'a actually a brand new engine technology patented by Prof Jay

- Has a Plenum BEFORE the turbo
- Plenum has a valve that opens and closes to the turbo
- Has a wastegate that "dumps excess air", whatever that means. Or he simple renamed "BOV" to "wastegate".

Prof Jay what is the name of this new engine ah?

Did I twist any of your words? if yes pls correct me ah notworthy.gif
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I am impressed at u guys, still can layan him until now.
constant_weight
post Jul 22 2017, 06:46 PM

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QUOTE(Remnant_T @ Jul 22 2017, 05:41 PM)
I am impressed at u guys, still can layan him until now.
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This is the most entertaining soap drama after our country politic. Really appreciate everyone that layan him all this while, it made my day. Good laugh, my grumpy mood gone, and can't help myself to troll him a bit too.
SUSskyblu3
post Jul 22 2017, 07:09 PM

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Can see who in this thread bother to debate until the core comes home. You guys should become politicians.
TSjayraptor
post Jul 23 2017, 10:32 AM

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QUOTE(dares @ Jul 22 2017, 05:10 PM)
Even the throttle butterfly valve comes after the intercooler, not before the turbo.

We misundersood liao, it'a actually a brand new engine technology patented by Prof Jay

- Has a Plenum BEFORE the turbo
- Plenum has a valve that opens and closes to the turbo
- Has a wastegate that "dumps excess air", whatever that means. Or he simple renamed "BOV" to "wastegate".

Prof Jay what is the name of this new engine ah?

Did I twist any of your words? if yes pls correct me ah notworthy.gif
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@K3nnYkl82 reply together

You already twisted my comments by posting your own made up assumptions on things that I never specified such as location of layout. You really don't know or pretend don't know. Same old dirty politics strategies where few of you posting twisted points saying these are from me trying to make others believe what you all said are true. However, facts vs rumours and false twisted comments, facts always win.

If you're just googling and read from layout or diagram, maybe that is how you misinterpreted turbocharger layout like wkc5657 earlier. If you guys mod your cars like what you guys claimed in your twisted comments, think the air intake probably failed to suck air in causing engine stalled. I'll sure laugh at you ah Beng modified car wrongly until mati engine on roadside.


TSjayraptor
post Jul 23 2017, 10:53 AM

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QUOTE(wkc5657 @ Jul 22 2017, 04:31 PM)
1) Conventional torque converter automatics derive drive ratios through combination in engaging of multiple shift element groups of compound planetary gearset. 1 additional drive gear ratio is really not a simple as +1 physical gear. It is so difficult to understand that even real transmission engineer will need a piece of paper to draw out and laydown the calculation.

2) Proton did make inspira with lancer chasis components, but is the interior materials exactly the same as lancer? The wheels size pun tak sama....

3) I guess lexus also "lied" to the whole world on the GS :
[attachmentid=8983603]
[attachmentid=8983604]

Oh ya, 1 more thing regarding the 2003 vios and dugong vios, dugong vios has 50mm more wheelbase. Mana ada sama chassis? Can you fact check? Do you want to do this to yourself? Embarrass yourself again?
"valve in plenum that opens where air is drawn in by the spool on intake side"

Isn't this throttle butterfly??

Then throttle butterfly at intake buat apa for turbocharged car if the wastegate works like described?

Got mixed up with diverter/BOV which also nested at the intake? But this one for different purpose leh??

Unless his turbo got another separate air intake source la.....
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1) you should check the size of gears in new conventional 6AT gearbox and old 90's 4AT gearbox before you come here and post crap.

2) p1 took only the chassis, not the whole lancer gt chassis complete with unibody.

3) Lexus doesn't lie, only Koreans do.

Vios dugong, you don't know that chassis is just the frame, you can adjust the wheels placement? Like sylphy g11, its chassis is modified out of sentra n16. That's why many toyota haters attacked dugong and present vios.

The turbocharger, I have not specify the layout, what do you based on to assume? You probably don't know what plenum, bypass mean? Go pop up your car on sale (that has turbo) bonnet then check the layout. The turbo actually has 1 spool in exhaust while another has an alternate hose branched out from air intake after the filter. If there's no valve there as per your claim, are you saying the air flows into 2 hoses after the filter?
K3nnYkl82
post Jul 23 2017, 01:48 PM

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QUOTE(jayraptor @ Jul 23 2017, 10:32 AM)
@K3nnYkl82 reply together

You already twisted my comments by posting your own made up assumptions on things that I never specified such as location of layout. You really don't know or pretend don't know. Same old dirty politics strategies where few of you posting twisted points saying these are from me trying to make others believe what you all said are true. However, facts vs rumours and false twisted comments, facts always win.

If you're just googling and read from layout or diagram, maybe that is how you misinterpreted turbocharger layout like wkc5657 earlier. If you guys mod your cars like what you guys claimed in your twisted comments, think the air intake probably failed to suck air in causing engine stalled. I'll sure laugh at you ah Beng modified car wrongly until mati engine on roadside.
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Boss apa I do?
I agree with ur genius answer also tak betul ah?
U tak makan ubat today? Or period?
constant_weight
post Jul 23 2017, 03:05 PM

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QUOTE(jayraptor @ Jul 23 2017, 10:53 AM)
1) you should check the size of gears in new conventional 6AT gearbox and old 90's 4AT gearbox before you come here and post crap.

2) p1 took only the chassis, not the whole lancer gt chassis complete with unibody.

3) Lexus doesn't lie, only Koreans do.

Vios dugong, you don't know that chassis is just the frame, you can adjust the wheels placement? Like sylphy g11, its chassis is modified out of sentra n16. That's why many toyota haters attacked dugong and present vios.

The turbocharger, I have not specify the layout, what do you based on to assume? You probably don't know what plenum, bypass mean? Go pop up your car on sale (that has turbo) bonnet then check the layout. The turbo actually has 1 spool in exhaust while another has an alternate hose branched out from air intake after the filter. If there's no valve there as per your claim, are you saying the air flows into 2 hoses after the filter?
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Conventional AT planetary gears system is really not as straight forward as popping one gear in. Gears size relation with gear ratio is extremely complicated. Actually add one full planetary gear set give 2-3 additional gears (including reverse) depending on who control the sun gear, who control the ring gear, and if sun gear and ring gear move in same direction. Mind blowing stuff, go take a look.

Exhaust side and intake side of a turbocharger are completely isolated except one shaft for god sake. Air don't flow between both housing. Exhaust gas push the the turbo to spin from the moment engine start, it spin really fast at idling. Depending on the turbo 20,000 rpm is common at idle. Through the shaft, it spin the intake spool that act as a pump to push more air into the engine. Again since the idling. The so called "turbo activate" is not an physical switch on, it is merely a increase torque perception feels by the driver when the turbo spin faster enough (which translate to higher boost and higher torque). BOV or wastegate active then the driver lift of the throttle. With sudden resistance that block the high pressurized air from going into the cylinder, the back pressure goes back to the intake turbo side which significantly slow down the turbo speed and create excessive stress to the shaft connecting both side of the turbo. This will either break the shaft or the turbine blade. The solution is BOV either mechanically valve or electronics controlled like the Civic 1.5TC. BOV used to be dumping the air out to atmosphere, but in today strict environmental friendly way, we dump they back to the intake after the filter and before the intake side of turbocharger.

Yea, there is a valve, but the way you interpret how the valve function is completely off. I serious don't care your perspective toward Korean car, but please get the turbo working principle right.

Gosh, I guess I just joined the F&F political party.

This post has been edited by constant_weight: Jul 23 2017, 03:13 PM
K3nnYkl82
post Jul 23 2017, 03:19 PM

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QUOTE(constant_weight @ Jul 23 2017, 03:05 PM)
Conventional AT planetary gears system is really not as straight forward as popping one gear in. Gears size relation with gear ratio is extremely complicated. Actually add one full planetary gear set give 2-3 additional gears (including reverse) depending on who control the sun gear, who control the ring gear, and if sun gear and ring gear move in same direction. Mind blowing stuff, go take a look.

Exhaust side and intake side of a turbocharger are completely isolated except one shaft for god sake. Air don't flow between both housing. Exhaust gas push the the turbo to spin from the moment engine start, it spin really fast at idling. Depending on the turbo 20,000 rpm is common at idle. Through the shaft, it spin the intake spool that act as a pump to push more air into the engine. Again since the idling. The so called "turbo activate" is not an physical switch on, it is merely a increase torque perception feels by the driver when the turbo spin faster enough (which translate to higher boost and higher torque). BOV or wastegate active then the driver lift of the throttle. With sudden resistance that block the high pressurized air from going into the cylinder, the back pressure goes back to the intake turbo side which significantly slow down the turbo speed and create excessive stress to the shaft connecting both side of the turbo. This will either break the shaft or the turbine blade. The solution is BOV either mechanically valve or electronics controlled like the Civic 1.5TC. BOV used to be dumping the air out to atmosphere, but in today strict environmental friendly way, we dump they back to the intake after the filter and before the intake side of turbocharger.

Yea, there is a valve, but the way you interpret how the valve function is completely off. I serious don't care your perspective toward Korean car, but please get the turbo working principle right.

Gosh, I guess I just joined the F&F political party.
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Prof Jay is getting harder to babysit lately, agree with him also Salah .disagree give him explaination he will deem u as salesman for the other party (which ever he says no good). Then he will use all his "fact" to win u based on his experience
dstl1128
post Jul 24 2017, 06:29 AM

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QUOTE(K3nnYkl82 @ Jul 23 2017, 03:19 PM)
Prof Jay is getting harder to babysit lately, agree with him also Salah .disagree give him explaination he will deem u as salesman for the other party (which ever he says no good). Then he will use all his "fact" to win u based on his experience
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Cannot just simply agree without any challenge.
K3nnYkl82
post Jul 24 2017, 07:49 AM

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QUOTE(dstl1128 @ Jul 24 2017, 06:29 AM)
Cannot just simply agree without any challenge.
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It's a declaration la, how to challenge
U see how he can create non existent facts, then if u challenge where is the article or white paper,he will ask u go Google urself la (but it page 404) lol

This post has been edited by K3nnYkl82: Jul 24 2017, 07:50 AM
wkc5657
post Jul 24 2017, 11:01 AM

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QUOTE(jayraptor @ Jul 23 2017, 10:53 AM)
1) you should check the size of gears in new conventional 6AT gearbox and old 90's 4AT gearbox before you come here and post crap.

2) p1 took only the chassis, not the whole lancer gt chassis complete with unibody.

3) Lexus doesn't lie, only Koreans do.

Vios dugong, you don't know that chassis is just the frame, you can adjust the wheels placement? Like sylphy g11, its chassis is modified out of sentra n16. That's why many toyota haters attacked dugong and present vios.

The turbocharger, I have not specify the layout, what do you based on to assume? You probably don't know what plenum, bypass mean? Go pop up your car on sale (that has turbo) bonnet then check the layout. The turbo actually has 1 spool in exhaust while another has an alternate hose branched out from air intake after the filter. If there's no valve there as per your claim, are you saying the air flows into 2 hoses after the filter?
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Fuyoh....garang nya.....

1) Buka 6AT, compound planetary gear set; buka 4AT, also planetary gear set. The difference between both is more than 2 gears leh.....

Eh...don't tell me mistaken the final drive gear as the +1 gear behind??!!

2) Oh...like that ar...

3) Lexus did a drastic facelift on the GS and called it a facelift = honest; Hyundai for sonata new rise did the same and announced it as facelift = lying .....Ok, i "get it".

4) In the age before modular platform, modified platform still equal same as previous. Ok "got" what you meant.

5) Boss, there are not only 2, but 3. For conventional turbocharged engine, besides the normal intake flow, 3 more flow back to the intake side, EGR, PCV and diverter/bypass. And between them, only EGR has link between exhaust end and intake end. But only flow 1 direction, from exhaust back to intake....what you wrote there points it more towards the diverter/bypass valve....or i think i need to get some glasses changed or restudy my inggerish....

Added simplified diagram :
Attached Image

Yes, i got it from google. If this is "fake news" to you, kindly enlighten us with your drawn diagram.

This post has been edited by wkc5657: Jul 24 2017, 11:25 AM
TitanRev
post Jul 24 2017, 11:13 AM

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QUOTE(jayraptor @ Jul 22 2017, 09:23 AM)
There is no chart that can show fixed turbocharged engine torque. Your first test vs 2nd, 3rd, 4th and so on will give you different reading especially on a car that is moving on the road. The wastegate valve opens at fixed rpm eg. Twinscroll turbocharger at 1200rpm, yes it'll open whenever reaching 1200rpm. The max torque however varies at no fixed rpm which is why turbo engine specs put 1200-4000rpm depends on situation. Any turbo engine specs chart that show flat peak torque from wastegate valve open rpm 1200-4000. If you read the chart as fixed peak torque, then you're not reading the chart correctly.
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Just want to correct your mistake. Wastegate don't rely on RPM to work it works based on boost pressure.
dares
post Jul 24 2017, 12:13 PM

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QUOTE(TitanRev @ Jul 24 2017, 11:13 AM)
Just want to correct your mistake. Wastegate don't rely on RPM to work it works based on boost pressure.
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His "wastegate" is different from our "wastegate".
dares
post Jul 24 2017, 12:26 PM

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QUOTE(jayraptor @ Jul 23 2017, 10:53 AM)
The turbo actually has 1 spool in exhaust while another has an alternate hose branched out from air intake after the filter. If there's no valve there as per your claim, are you saying the air flows into 2 hoses after the filter?
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Kesian never heard of Diverter Valve(also known as recirculation or blowoff) and Positive Crank Valve.

user posted image

This post has been edited by dares: Jul 24 2017, 12:34 PM
K3nnYkl82
post Jul 24 2017, 01:09 PM

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QUOTE(TitanRev @ Jul 24 2017, 11:13 AM)
Just want to correct your mistake. Wastegate don't rely on RPM to work it works based on boost pressure.
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Please... Dont twist his words ok.
He does not make mistake
wkc5657
post Jul 24 2017, 01:42 PM

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QUOTE(dares @ Jul 24 2017, 12:26 PM)
Kesian never heard of Diverter Valve(also known as recirculation or blowoff) and Positive Crank Valve.

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Ehehehe....have to be fair to car sifu jay, this time point sidikit correction for you sweat.gif

Although diverter valve and blow off valve serve the same purpose, the way it works a bit different. Diverter valve will recirculate within the intake stream while blow off valve will kentut out the extra air pressure. Meaning blowoff won't recirculate back into intake, only diverter valve will.

PCV full name = positive crankcase ventilation

*saw your sig, does the korean fanboy point to me kah?? rolleyes.gif

QUOTE(K3nnYkl82 @ Jul 24 2017, 01:09 PM)
Please... Dont twist his words ok.
He does not make mistake
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Add on :

He dictates his engineering and physics law and declares our blasphemy on those law

This post has been edited by wkc5657: Jul 24 2017, 01:44 PM
dares
post Jul 24 2017, 01:57 PM

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QUOTE(wkc5657 @ Jul 24 2017, 01:42 PM)
Ehehehe....have to be fair to car sifu jay, this time point sidikit correction for you  sweat.gif

Although diverter valve and blow off valve serve the same purpose, the way it works a bit different. Diverter valve will recirculate within the intake stream while blow off valve will kentut out the extra air pressure. Meaning blowoff won't recirculate back into intake, only diverter valve will.

PCV full name = positive crankcase ventilation

*saw your sig, does the korean fanboy point to me kah??  rolleyes.gif
Add on :

He dictates his engineering and physics law and declares our blasphemy on those law
*
You're right blowoff is different that it does not recirculate the high pressure air back to intake, but since both is used to relief the high pressure air charge after the turbo, I wanted to be sure to cover all my bases. You know la nanti prof tell me that's not a diverter valve that's a blowoff yada yada blah blah blah

Yep the V in PCV is Ventilation not Valve, thanks for the correction.

Who else does it refer to? laugh.gif

This post has been edited by dares: Jul 24 2017, 02:02 PM
constant_weight
post Jul 24 2017, 06:18 PM

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QUOTE(wkc5657 @ Jul 24 2017, 01:42 PM)
Ehehehe....have to be fair to car sifu jay, this time point sidikit correction for you  sweat.gif

Although diverter valve and blow off valve serve the same purpose, the way it works a bit different. Diverter valve will recirculate within the intake stream while blow off valve will kentut out the extra air pressure. Meaning blowoff won't recirculate back into intake, only diverter valve will.

PCV full name = positive crankcase ventilation

*saw your sig, does the korean fanboy point to me kah??  rolleyes.gif
Add on :

He dictates his engineering and physics law and declares our blasphemy on those law
*
Just to make sure Prof Jay don't cofuse, BOV nowadays go back to after the air filter, but before the MAF. For environmental reason. By definition your are right blow off don't recirculate back to intake since it is before MAF.

We have to be extra careful later Prof Jay make big fuss of our "mistake", another 10 pages learning what is air filter from him.
overfloe
post Jul 24 2017, 07:40 PM

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QUOTE(constant_weight @ Jul 24 2017, 07:18 PM)
another 10 pages learning what is air filter from him.
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Oo... if liddat, sure korean strategist went wrong by selecting improper filter media. Sure kena wan..
TSjayraptor
post Jul 24 2017, 08:59 PM

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QUOTE(dares @ Jul 24 2017, 12:26 PM)
Kesian never heard of Diverter Valve(also known as recirculation or blowoff) and Positive Crank Valve.

user posted image
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@wkc5657
@constant_weight

Both of you seriously have interpretation problem. Tone down to very general level, saying valve that activates turbo, you can point to wastegate and spool.

Explain again in more detailed to turbocharger plenum that has bypass inlet when rpm below turbocharger operating rpm, you go pointing at BOV.

I go further more simple, branch out hose, you go point at PCV tiny hose that is no bigger in diameter than your finger. Some more point to EGR now. Fuyoh!

I just checked Google where you guys get source, none of them show anything about the plenum that works similar to VIS. I doubt you'll understand, better I downgrade further to your primitive level. You breathe and eat through your throat, how come food doesn't go into your lung? Because the epiglottis and glottis valves that will close the trachea when you swallow food, it goes into esophagus then into your stomach behind your big belly. Same case with turbo, at low rpm masuk bypass inlet, higher rpm masuk turbo inlet.

This post has been edited by jayraptor: Jul 24 2017, 09:01 PM

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