Did i ask for a list of price? NO.
i only asked whether anybody change their tyre size from 205 to 215 and if they know the price just put it.

Is that too much to ask?

if you're rude that i can be rude too.. :-)

Air filter?

K&n drop in?
Increase horse power?
Worth to get?
Void warranty?

Question?

just an air filter always can remove it

you just only removing it for warranty purpose if they dont let you to claim after that still can putting it back
just a 3 min job

Went drag racing at Cyber yesterday..
i lost to a Kia Koup... v.dissapointed. 

Its Time to sell off my lala, and get TRD..

but ya la, pickup was slower than the kia koup. His horsepower is 156, on a 1200kg car.
My 143 hp, on 1350 car.. couldnt win.
No problems at launch. it was just that my pickup was slower. I expected my shifting to beat his, but..
my car was a bit heavy as well, with an extra passenger at my side.


Time to trade in, for new Vios tee-ar-dee.

welcum new arrival to my family... 

u need to go really technical if you wan to learn about how to make more power..
u first have to know the basic of the engine .. ours is of coz the 4 stroke otto cycle..
then u need to know what is mivec... we have both in the intake and exhaust cam.
AFR is part of the big picture here.

mapping is NOT a SOFTWARE .. its a SETTING.. u dun simply plug another car setting into another car .. especially different engine.

The few things u gonna play with is..

Ignition timing
intake mivec
exhaust mivec
AFR
u can touch the throttle response as well if u want.

Key point is WHEN to BURN ..
What are the mixture ? lean or rich ? .. lean u get more power .. potentially kaaaboom it as well .. Need to know where to stay healthy .
too much advance of timing u burn the fuel before it reach TDC (top dead center) .. causing explosion earlier than it should be.. piston forcing upwards and mixture exploded expanding it downwards..

the stroke of the engine also affect the timing.. longer stroke u do not need to advance the timing so much coz timing calculated by DEGREE .. while shorter stroke u need to advance the timing more..

Rocket science ...

yupz... he is our macgyver here... we started 2yrs ago with the remap thingy... different versions of map for different cars n setup... during supercircuit group buy theres even a map for it as most of us in the group buy went for dyno to further touch up the afr to squeeze out all the juice there is but still on the safe side thus reducing knocking issues etc... 

still remember when botack uploaded a map for rich mixture to a mod but then dekit it n did not revert back to stock map... his car exhaust was spitting fire like ebo x... 

nah .. for those interested

Fuel Burn Rate

Fuel burn rate is always FIX .. of coz diff brand diff octane got differences..

but the key point is u want everything to burn at around 10-15 degree after TDC ... (if u dunno what is TDC .. then u better forget what i am trying to express)

take 1.8 engine as an example ..
1.8 engine has a 77.4mm stroke .. 1 rotation is 154.8mm

---------------------------------------------------------------------------------------------------

at 3000 rpm (rotation per minute) .. per second = 3000/60 = 50 rotation per second...

one rotation is 360 degree..

1 second / 50 rotation = 0.02 second / rotation @ 20 milisecond to complete one 360 degree @ 1 rotation

20 ms / 360 degree = 56 micro second = 1 degree

---------------------------------------------------------------------------------------------------

at 6000 rpm  ... per second = 6000/60 = 100 rotation per second ..

1 second / 100 rotation = 0.01 second / rotation @ 10 milisecond to complete one 360 degree

10 ms / 360 degree = 27 micro second = 1 degree

----------------------------------------------------------------------------------------------------

from the 2 example above .. u can see at higher speed the time require to travel per degree is shorter at higher rpm ... but the fuel burn rate is always FIXED for the same fuel .. hence logically .. u have to advance the timing more at higher RPM so that u manage to burn everything at 10 - 15 degree after TDC ..

That would be a NO .. lolz
coz if u dig back here .. there are some GOD that will take avantage of it ..
and he pump load map to your car not even knowing how the engine works.. 

Bro... K3 not free with Inspira anymore....

We have moved forwards towards a better future where we get more chicks and more face...

I already forgive .. its not i dun wan to share .. no choice d ..
I will be damn busy with chicks ... chicks magnet ...

Harlow.. dat's cause u driving a PROTON....
K3 now drives a VIOS TRD... ok

Did u just call K3 NO BALLS?

That's it man.... get prepared to have your car SLAMMED! 

Thank you for your detail explanation at first.    I have the passion to go deeper into Automotive Engineering, since I was in secondary school, but UTM don't want me...    That is a history.

Then I study it a bit and a bit by myself, from the Internet, books... but it's not enough. I consider myself is having basic knowledge on internal combustion engine and some understanding on the new technologies like, CVT, MIVEC (valve timing technologies from different car maker, I assume, generally they are the same), ASC, ABS, and so on.

I read through some articles about AFR recently, and so I can understand those things you're trying to explain. I am really interested to go deeper in this, but I cannot find a proper study material on the Internet. Any recommendation?

By the way, love your rocket science! 

@San.Diego

Sorry... This is only a test.
Testing, testing...

Yo... You're there Diego?

Kerana lu banyak sorhai