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 LYN Proton INSPIRA Owners and Fans Thread V62!, Haven't die yet!!!

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Quazacolt
post Feb 17 2014, 12:19 PM

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QUOTE(nzh0920 @ Feb 17 2014, 12:14 PM)
Quazacolt
here
http://en.wikipedia.org/wiki/MIVEC
see the different???
lift means the "OPEN" or "kick in" that u guys mention, our MIVEC same like Dual VVT-I only, wan open? swap 4J10  laugh.gif
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i read that damn many times ady la, especially many months ago when k3 linked that to me as well and explained to me on the 4B1x MIVEC operation

there is still a kick regardless of the operation mode and is very evident on my dyno chart (refer to k3's previous explanation) as well as butt dyno feel.

i was also curious on the MIVEC timing advancement: if it's ALL GOOD, why couldn't it operate even earlier like 1.5k rpm? there is a reason why the stock MIVEC timing (for high speed/high rpm mode) have it triggered around 4.2k rpm right?
or the low speed high low modes that is probably what's giving off that enourmous torque/fun-factor.
Quazacolt
post Feb 17 2014, 12:34 PM

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QUOTE(nzh0920 @ Feb 17 2014, 12:27 PM)
sweat.gif  sweat.gif u ok mou
that one not kick, that one our engine characteristics , and yes MIVEC in our car operate since low rpm
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QUOTE(K3nnYkl82 @ Feb 17 2014, 12:27 PM)
you says u read many times i still think u do not understand lor ..
due to the highlighted sentence above
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it is as the video both of you guys linked, maybe i should rephrase the question:
why advance or retard the rotor timings at x rpm?

i think it's better if you 2 can slowly take the time to read my earlier questions and address them accordingly else it would be just a neverending roundabout misunderstanding sad.gif

or again if it's too much of a hassle to do it online i'm ok via offline too, better yet, direct explanation from the timings/mapping table with the stock/remapped mivec timing comparisons.
Quazacolt
post Feb 17 2014, 12:38 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 12:36 PM)
The Sqeezing Effect ... aduh .. how many times u wan me to explain taikor ...
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kacau you irl next time la lol notworthy.gif

QUOTE(nzh0920 @ Feb 17 2014, 12:36 PM)
ignition timing!
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ignition timing not interested for the time being, k3 said leng jor means leng jor lol!
Quazacolt
post Feb 17 2014, 12:38 PM

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QUOTE(kychong @ Feb 17 2014, 12:36 PM)
U write so long.... In summary. After remap, bagus la.
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yes bagus thumbup.gif
Quazacolt
post Feb 17 2014, 12:42 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 12:39 PM)
READ UP!

Makes me think that u really are JRP [Jay Raba Paha]
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thanks sifu notworthy.gif

=edit=
ah yes that's exactly what i needed, furthermore reference towards the GODLIKE engine
only thing left would be to co-relate them with the mappings thumbup.gif

This post has been edited by Quazacolt: Feb 17 2014, 12:43 PM
Quazacolt
post Feb 17 2014, 12:45 PM

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QUOTE(ktek @ Feb 17 2014, 12:44 PM)
can i say, twin cam enjin still got room to improve efficiency at the xyz rpm? so they implement vvt
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yes there's a LOT of room for improvements and as you can see from the wiki references linked, there are at least FOUR modes to play around on the timings!

the possibilities could be huge if not even endless biggrin.gif
Quazacolt
post Feb 17 2014, 12:57 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 12:52 PM)
DOHC engine advantage over SOHC ..

bigger surface for each Valve..
separate control for intake and exhaust cam ..

relate it to the squeezing effect ...
Bigger surface u will have problem during low end .. air fuel mixture lazy to move into the combussion chamber ..

(macam u take LRT .. if non peak hour .. u relax and walk in .. peak hour .. u kepit sardin also wan forcce in)
Non peak hour --> U DUN SQUEEZE IT
Peak hour -> U SQUEEZE iT

DOHC due to the larger surface is avantage during the high rev .. more surface .. more air can go in .. where else SOHC already choke itself .. not enuf air and fuel ..

SOHC -> LRT 100 meter long .. but only one door open at 1 meter wide..
DOHC -> LRT 100 meter long .. but open 2 door at 2 meter wide ..

so during peak hour .. u push me .. i push u .. into the train if we are running on SOHC
but if non peak hour ... we just walk in steadily..

Now DOHC ..
NON peak hour .. NOT many ppl .... but pintu buka besar besar ... sure all walk slowly into it .. (slowly mixture no gooding) ..
so ... DVVT / VVTI / MIVEC ... instead i buka the pintu 2 meter when the LRT stop .. i buka the pintu before the LRT STOP (sounds funny tongue.gif) .. so when the time i stop .. ppl will start rush in bcoz i gonna close it faster ... lolzzzz ..

Not a very good example.. but hope u get it .
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thanks a ton! that's basically addressed the DOHC question.

so the twin cams work on the exhaust and intake independently (as the previous god engine have actual picture illustration as well) as opposed to the older days of lifting/low or high cams (ala older vtec/campro etc).

understanding ok ya?
Quazacolt
post Feb 17 2014, 01:08 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 01:01 PM)
VANILA DOHC engine @ no DVVT or what so ever ...

u can change the intake cam to one kind .. exhaust cam to another kind (neglect the tuning part for now) ..
but SOHC u cant .. its 2 in 1 .

And when u ADVANCE THE SOHC timing .. the exhaust timing will follow .. lolz .. (SAME GOES TO VANILA DOHC) .. but if u got DVVT .. the oil chamber can shift the timing of each individual cam accordingly .

cam timing u can change to advance or retard.. BUT STILL the DURATION IS THE FREAKING SAME.. just early open or late open the valve... (take consideration of the vacuum effect) ..
Lift is totally a different monster... when VTEC kicks in .. or older Mivecs .. or older VTTi .. (toyota celica last version got) .. its like changing the car to HIGH CAM suddenly when it kicks in .. the DURATION of the valve open can be changed .. and the opening of the valve can be bigger too .. by pushing the valve deeper in.
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i see, so what happens if we advance everything altogether at earlier timings? that would mean that you would not have low end power/acceleration, right? further more at low speed, air ram effect would not be achieved and if you squeeze the intake (and and loosen the exhaust?) that would mean the engine will be starved right?

got some ideas churning up in my head but i think best if this is taken offline whenever you're free hehe tongue.gif
Quazacolt
post Feb 17 2014, 01:09 PM

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QUOTE(nzh0920 @ Feb 17 2014, 01:04 PM)
QuazacoltDon't mention mivec kick in jo, later let other ppl laugh  laugh.gif
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that's very layman buttdyno feel ma... not everyone also can be technical (even myself also failed at at being technical ma laugh.gif )

later too technical jor, like YAB professor jayraptor, NO ONE understand lerh sad.gif
Quazacolt
post Feb 17 2014, 01:11 PM

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QUOTE(nzh0920 @ Feb 17 2014, 01:08 PM)
so lift is like the train open door bigger, while VVT control when the open the door? correct?
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from (exaggerated laugh.gif) understanding, lift is like the train throw away the doors and and then pick it back up when the passengers are in.
or eh the train transform into monster and start doing train driftings.

vvt can have control when to open/close the door, and how big it wants to close/open (squeezing effect as explained?)
Quazacolt
post Feb 17 2014, 01:18 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 01:15 PM)
Stop staying in the carburator days please..
Its electronic control d..
I can choose at low rpm low load this setting
Low rpm high load this setting
High rpm low load this setting and etc
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yes exactly! hence the endless possibilities on playing around the settings biggrin.gif

btw how does the engine determine speed? (eg: low speed high load)
from the mapping tables which has 0-100% (i assume that is throttle position?) and rpm, so that means rpm is the sole determination of speed while load is the throttle?
Quazacolt
post Feb 17 2014, 01:29 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 01:28 PM)
Nope
Load vs rpm
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load is determined by how much the transmission is "dragging" the engine?

essentially rpm is the by product of throttle so throttle positions is irrelevant in the ecu mapping, that understanding ok?
Quazacolt
post Feb 17 2014, 02:06 PM

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QUOTE(animegod @ Feb 17 2014, 01:50 PM)
maybe sifu can explain using pseudocode lor..
such as,

if (rpm <= 2k) load remap;
else if(rpm >2k) load default map;
etc...

like this everyone can understand ma...
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Imo no matter what also remap just for the sake of the ignition timing lol
Quazacolt
post Feb 17 2014, 02:39 PM

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QUOTE(kychong @ Feb 17 2014, 02:39 PM)
Today this forum very high level. sad.gif  i no study so high level.
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i tried to study and dropped out jor cry.gif
Quazacolt
post Feb 17 2014, 03:51 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 03:43 PM)
yup
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thanks biggrin.gif thumbup.gif
Quazacolt
post Feb 17 2014, 03:52 PM

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QUOTE(MEXTEMAN @ Feb 17 2014, 03:43 PM)
Tomolo lesson : MRT Door pulak....

Mind the door closing coz if not u lose your head or worse off d small head...
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you know, i just watched a youtube video of male to female gender reassignment video thanks to my friend linking it with the label "NSFL" (life, lol)

it was... shocking.gif shocking.gif
Quazacolt
post Feb 17 2014, 06:13 PM

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» Click to show Spoiler - click again to hide... «


nzh0920 omg i remember you dropped it when screwing the bracket on LOL!
nvm la haven't kena initial D with it yet laugh.gif
Quazacolt
post Feb 17 2014, 06:52 PM

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QUOTE(mercury99 @ Feb 17 2014, 06:40 PM)
load is determined by the MAF sensor reading
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K3nnYkl82 how does the MAF sensor determines engine load?
Quazacolt
post Feb 17 2014, 06:56 PM

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QUOTE(K3nnYkl82 @ Feb 17 2014, 06:53 PM)
The expert mention it.. U ask the expert la..
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sad.gif
Quazacolt
post Feb 17 2014, 07:15 PM

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QUOTE(mercury99 @ Feb 17 2014, 07:03 PM)
dont say till like that, you're still the sifu ma lol
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sifu, sigong dun wan explain, so please help notworthy.gif
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