that's true. Anyway, i took master jay advice. Ditch my K3 long long time ago so that i dont butt hurt in RV. Now, i'm a proud owner of jap car. I guess i change to jap car due to the superior strategy offered by jap car maker. How to resist it?

erm .. let me correct that for u ..
instead of "superior strategy offer by th jap car maker" ... you should says .. master jay superior strategy that offer to the jap car maker..

thanks for correcting me. Ayam happy with what i have now.
jayraptor thank you

I had tested optima gt, Passat 1.8t & 2.0T.

Passat 1.8t - its a fast car, fast but not really punchy, a lot better than civic turbo (speed). very comfortable and nice nvh, the speeding comparable to GT but GT has more punchy feel.

Passat 2.0t - its explosive punchy fast.....very GOOD suspension, better than GT

optima GT - punchy & linear, like gentleman, not rush & explosive... if compare to Passat..but I prefer GT more, as bigger space & linear accelerating that can make my family sitting behind feel better.

Passat is good, but I just feel the interior space is smaller a bit....GT is D segment which meet my target, but smaller if compare to my current gen accord.....it's feel more mature interior, especially the red leather,niceeee... (Passat interior is nice & like very advance high tech, but it's not my like, maybe i'm getting old)

it's hard to look for a D segment car with 2.0cc turbo at around rm200k.
if accord turbo is out.....it's good choice, but damn, the services of a POPULAR BRAND is shitttt !!!!!!! because they cant manage to service so many carssss that they sold out....

now CRV is out....
now I have to advance 3-4weeks booking for service.....lets see have to advance 2 months booking for service or not in the end of the year.

I just got my Honda accord back yesterday from insurance claim at kah motor, it took 3 months !!!! %@&$&#^$#&(&$@(*$&(* , just for claim new left front light, front bumper, bonnet and some cover at bottom engine......

Finally, a useful post from someone who actually test drove the Optima GT... where did you manage to get a spin, fong928...?

kia plentong branch in jb. the salesman said they drove GT, sportage diesel and sorento diesel from kl to jb branch for test drive car purpose.

Pretty telling for someone with revolutionary, industry pioneering, earth shattering statements of facts :
1) the +1 gear behind 4AT = 5 speed AT
2) 50kg anti roll bar
3) the everlasting olfactory goodness of conti car interior
4) the oh so light that a baby can lift the frame
5) mercedes has no assembly plant in thailand

Now can add :
- sonata new rise die die is whole new model even when hyundai HQ say it is facelift
- turbocharger will "activated"
- wastegate actually opens before turbocharger activates

无敌最寂寞...invincibly jahil

Really 1000% totally "convinced" of this

U miss out something
Timing belt slips all the time causing vvti not efficient
Timing chain does not slips it's better for vvti
And something regarding smell as well

You reminded me of this, from way back when.

He "taught" us, turbo only activate at certain RPMs. At other RPMs it is practically just sitting there doing nothing So I made this graph to illustrate his "teachings".



This post has been edited by dares: Jul 21 2017, 11:10 AM

How dare you missed an important point into his latest "feature thesis lecture" notes :

Wastegate is open before turbo kick in yo

This post has been edited by wkc5657: Jul 21 2017, 11:16 AM

I'm sorry!!



This post has been edited by dares: Jul 21 2017, 11:23 AM

he high ke........

i guess if his turbos instantly reach max boost upon activation, the wastegate must be open for the sake of safety.....

Please la, Tau Salah d please correct ur graph to reflect wastegate open before turbo activate

The graph ngam la!

Volvo is in deep shit, the drive-e range of engine timing belt driven. I guess the slipping that "makes" it more efficient??



If wastegate is open, where can build up enough exhaust pressure for the turbocharger to reach surge line?

Unless, it's a new secret proprietary invention of electric motor driven turbocharger that has a specially made on/off switch. But then, if that's the case, why the heck need exhaust driven turbine and wastegate? Normal exhaust ducting kan dah cukup?

Wakau, tiba-tiba "activated", the car "activated" "warp speed" to send you (and maybe some innocent souls) to heaven from the corresponding epic torque steer and loss of traction.

This post has been edited by wkc5657: Jul 21 2017, 01:41 PM

you can build some pressure, sikit je i guess....

a slightly less angular version of dares graph can be created, wastegate bukak till hits those rpm's then tutup suddenly when it hits activation...... you can build 'some' boost but god... that would be an utterly utterly stupidly system... max boost would probably have to be be set so low.... and off 'activation' you will still be forced to spin the stupid turbine regardless...

basically its a design so dumb, the campro iafm (which imo is also in so many ways pretty silly) will probably perform miles better than it. we should cukur, nobody has ever hired him to design an engine.

Ur head ngam,

It's not stated timing belt or chain!
If it's belt u have to reflect slippage..

子曰 朝聞道夕死可兮
未曾想 吾未及而立之年而得窺天道
老天待我 不薄啊

Seems like cannot work, if the wastegate closed at elevated rpm, the exhaust pressure will be quite high. But if your boost limit set too long, the wastegate will definitely buka balik in a very short moment of time. If not, the elevated exhaust back pressure will stall the engine.

In your proposed setting, the car will almost be like a running hi hat...tsss...tsss...tsss...tsss.....

Highest level of enlightenment

Automotive nirvana....

This post has been edited by wkc5657: Jul 21 2017, 03:04 PM

yup it will definitely do that!! 100% but he mau hit that max instantly, what to do..... #jaydesign

This post has been edited by lsm1991: Jul 21 2017, 03:07 PM