Engine = The Campro under the inspira hood

Load = slang:  eyeful—used in the phrase get a load of

So its like

"Get a load of my sexy campro engine!!"

or

"My Campro engine is loaded yo!!!"

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vrooom vrooom~
(*jalan-jalan family holiday, PD)

Hey, are you referring to the engine load found in the engine management system or when extracted from the OBDII connection?

There are 2 kinds of loads that OBD reports: calculated load and abs_load.

Calculated load:
Goes between 0 to 100%. At full throttle, calculated load is always 100%. Very roughly speaking, this is the % of currently available torque you are using. For example, if the car can produce 75 ft.lb at 2000 rpm, and at 2000 rpm you are making 50 ft.lb, the calculated load will be 50/75 = 66%. If you downshift to a lower gear, but still only require 50 ft.lb but rev at 3000 rpm, the calculated load will be different. If this car's max torque at 3000 rpm is 100 ft.lb, then the calculated load will be 50/100 = 50%.

I said very roughly, because what the sensors are really measuring and calculating is air flow (air flow means fuel flow, which usually makes torque).

Abs_load:
Very roughly speaking, more of an indicator or comparison between how much this air+fuel engine is using compared to a really good NA engine at full throttle (assuming same displacement at the same speed). A typical NA engine will have abs_load at about 95% at full throttle. A boosted engine will have higher calculated load, because the higher pressure caused by turbo or supercharging will force more air into the engine.

Here is a detailed page which will give you lots to think about.

What they are good for:
Assuming you are using some sort of OBD connector to your phone, and you can record all these data, you can use these info instead of a dyno test. This of course cannot tell you how much actual hp is at the wheels, but if you want to know if putting on a 4-2-1 header (or any intake/ exhause part) helps with breathing, this will do it fine enough.

Do some full throttle runs through the rev range, then swap out the header and repeat. You can compare the abs_load at various revs to see where the 4-2-1 header helps. This is actually better than a dyno in some ways, because you are actually seeing if the engine can breathe better with these mods.

Alternatively, you can see the plain air flow numbers (usually in g/s) recorded by the mass airflow meter. Anyway, OBD datalogging is f***ing great and you should all use it for verifying if your mods work. I don't because I don't have mods. Yet.

R3 skirt fan/user ah? Heheh
Dun forget to get R3 mat!

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Hi lynners,

When I drive in highway just now, at about 130km/h? this noise pebble-hit-like appears out of nowhere and really scare the hell out of me..
(I suspect it's from the front hood)

Anyone occurs to face with this problem before? 

I dont know how to attach audio, but here's the recording that I've made.
( http://www.online-convert.com/result/e6a6a...0840390684e495f )

u need to buy k3nnykl82 a milo ais to discuss further...

he is the one who remap all the cars here... outsider go to the extend copy his altered afr mapping when got the chance to access their remap ecu during 'installation'...

Haha, nice~
No, i dont have the mat, the skirts arent even the original set from p1.. try ask our resident r3 rider williamhohoho lolz

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 ...

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

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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

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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

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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 ..

What is a DRL? HID?