[S13_Han]

GLOSSARY / ABBREVIATIONS

BOV Blow Off Valve
Releases back pressure from the TB

TB Throttle Body
This is the valve that regulates how much air enters the engine. When you put your foot on the accerator, it opens up letting in more air.

FMIC Front Mount Intercooler
When air is compressed, it heats up; and when air heats up, it expands.
The intercooler further increases the power of the engine by cooling the pressurized air coming out of the compressor before it goes into the engine. The intake air passes through sealed passageways inside the cooler, while cooler air from outside is blown across fins.

EFI Electronic Fuel Injection

AFM Air Flow Meter

NA Normally Aspirated
Means that air flows through an air filter and directly into the cylinders.

ECU Engine Control Unit
Monitors the Air / Fuel entering the engine. Adds more fuel if there is more air entering.

Mass airflow sensor
Tells the ECU the mass of air entering the engine.

Oxygen sensor
Monitors the amount of oxygen in the exhaust so the ECU can determine how rich or lean the fuel mixture is and make adjustments accordingly

Throttle position sensor
Monitors the throttle valve position (which determines how much air goes into the engine) so the ECU can respond quickly to changes, increasing or decreasing the fuel rate as necessary

Coolant temperature sensor
Allows the ECU to determine when the engine has reached its proper operating temperature

Fuel Rail
A pipe which supplies pressurized fuel to all of the injectors.

Turbocharged
They compress the air flowing into the engine. The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder.

Boost
The amount of pressure squeezed into each cyclinder.

Intake stroke
The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline.

Displacement
As the piston moves up and down, the size of the combustion chamber changes. It has some maximum volume as well as a minimum volume. The difference between the maximum and minimum is called the displacement and is measured in liters or CCs (Cubic Centimeters, where 1,000 cubic centimeters equals a litre).

Spark plug
The spark plug supplies the spark that ignites the air/fuel mixture so that combustion can occur. The spark must happen at just the right moment for things to work properly.

Valves
The intake and exhaust valves open at the proper time to let in air and fuel and to let out exhaust. Note that both valves are closed during compression and combustion so that the combustion chamber is sealed.

Piston
A piston is a cylindrical piece of metal that moves up and down inside the cylinder.

Piston rings
Piston rings provide a sliding seal between the outer edge of the piston and the inner edge of the cylinder.
The rings serve two purposes:
* They prevent the fuel/air mixture and exhaust in the combustion chamber from leaking into the sump during compression and combustion.
* They keep oil in the sump from leaking into the combustion area, where it would be burned and lost.

Connecting rod
The connecting rod connects the piston to the crankshaft. It can rotate at both ends so that its angle can change as the piston moves and the crankshaft rotates.

Crank shaft
The crank shaft turns the piston's up and down motion into circular motion just like a crank on a jack-in-the-box does.

Big End Bearing
The big end bearing connects the rod to the crankshaft and allows the crankshaft to spin in the "big end" of the rod.

Little End Bearing
The little end bearing connects the rod to the pin that connects to the piston. This is at the "little end" of the rod.

Sump
The sump surrounds the crankshaft. It contains some amount of oil, which collects in the bottom of the sump (the oil pan).

Camshaft
The valve train consists of the valves and a mechanism that opens and closes them. The opening and closing system is called a camshaft. The camshaft has lobes on it that move the valves up and down

Overhead cams
This means that the camshaft is located above the valves.

Timing Belt / Chain
A timing belt or timing chain links the crankshaft to the camshaft so that the valves are in sync with the pistons.

Dual overhead cams
Many high-performance engines have four valves per cylinder (two for intake, two for exhaust), and this arrangement requires two camshafts per bank of cylinders.

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USEFUL LINKS

Offset/wheel width calculator

How Stuff Works

[lovesil]

Good posting! Can't really think of much now.

Engine Damper
A suspension for the engine. Reduce the movement of engine when revving and hence gain torque improvement

[bootlegapparel]

To be accurate, In the last one, it doesn't require two overhead camshafts.

[S13_Han]

I might just take that bit out

[Ic3man]

what about not just engine. such as gearbox..
Strut towers etc..
big end bearing.
etc
but good work otherwise

[Slow Ride]

Very good idea. A lot of people (me included) need some of these abreviations explained.

While I'm here, what does SAFC stand for?

[Ic3man]

SAFC.. is a abbreviation for Super Air Flow Controller. basically an Apexi product that can change your air flow readings before they get to the ecu

[lpbarnes1984]

Don't mean to sound dumb, what was is a Power FC? the FC part has me confused.

[Slow Ride]

Ic3man, on Apr 13 2005, 10:03 PM, said:

SAFC.. is a abbreviation for Super Air Flow Controller. basically an Apexi product that can change your air flow readings before they get to the ecu

Thanks for clearing that up man.

[pcheng206]

Hi,

i'm new to the forum, and this post is awesome for the turbo newbies..like myself.

can some one please explain to me, in laymans terms, exactly what the process is of the entire engine bay when the car is accelerating. i.e. from when the air comes through, proceeds into the filter - gets filtered.. etc to when it gets compressed with turbo and runs through FMIC, to the exhaust.

Thanks.

[Ic3man]

for pcheng.. check out www.howstuffworks.com

lpbarnes1984 - power FC is just a name branding. if it does mean something it might mean full computer. or something in jap. Sif i can translate jap. So i wouldn't worry.. and power fc or power fc pro cos there are multiple versions.
pro doesn't need AFM
.

[VH5150]

Ic3man, on Apr 13 2005, 11:22 PM, said:

for pcheng.. check out www.howstuffworks.com

lpbarnes1984 - power FC is just a name branding. if it does mean something it might mean full computer. or something in jap. Sif i can translate jap. So i wouldn't worry.. and power fc or power fc pro cos there are multiple versions.
pro doesn't need AFM
.

The Power FC Pro does need an AFM. You are thinking of the D-Jetro. The Pro has a rev-limiter and traction control.

[S13_Han]

Ic3man, on Apr 13 2005, 05:26 PM, said:

what about not just engine. such as gearbox..
Strut towers etc..
big end bearing.
etc
but good work otherwise

Yup, all of it would be good. Or what people are willing to add.

I'll make it look all flashy when I put it in the article and have everyone's name who contributed

[hollywood]

S13_Han, on Apr 13 2005, 02:46 PM, said:

but if anyone has any links to this sort of thing please post it up.

Here's a few.

Automotive Glossary
Automotive Definitions
AutoSpeak
Woman Motorist I can't believe they have this site.

[S13_Han]

Ooohhhh those links are wicked. Cheers

[Nissan.Skyline.R34]

thnxs for all those abbreviations and stuff......

[1990_S13]

hey those helped alot guys... thanks for th info/abbreviations lol

-Rs

[playboy]

more info and abbreviations here:

http://www.datsuns.c...h/carterms3.htm

[Edd-GTR]

SAFC actually stands for Super AirFlow Converter.... says so on the box

[I80SX]

Fuel Delivery Upgrade<------ covers everything from fuel pump, fuel regulator and injector upgrades.

[HYPR180]

RSM - rev speed meter
EBC - electronic boost controller
HUD - head up display

would you include fuel rail in 'fuel delivery'?

maybe a maths genious could put up the mesurement conversions like BHP to KW to PS and PSI to BAR, etc.....

to get the ball rolling...
BHP x 0.745 = KW
KW x 1.341 = BHP

[Ca18Det_85]

Thanks for that stuff ppls Geeze you have some posts up S13 Han

[LOCO 13]

whats imo?

[schift]

^ imo = In my opinion

Nothing to do with cars just random abbreviation

This post has been edited by wrpshh: 09 May 2006 - 11:27 PM

[izy180]

[quote name='HYPR180' date='Sep 29 2005, 12:02 AM' post='1646431']
RSM - rev speed meter
EBC - electronic boost controller
HUD - head up display

would you include fuel rail in 'fuel delivery'?

maybe a maths genious could put up the mesurement conversions like BHP to KW to PS and PSI to BAR, etc.....

to get the ball rolling...
BHP x 0.745 = KW
KW x 1.341 = BHP
[/qu



what does bhp stand for.?

[TonyL]

Chassis Number Decoding for Nissan Skylines

taken from - http://www.members.o...om.au/danlopez/
but modified to look better

Work in progress.

[schift]

Quote

what does bhp stand for.?

Brake Horse Power

[SLYEF]

dont shoot me im a noob, wat does 56k warn mean seen it a couple of times but have no idea of wat it is.

[TonyL]

JASMA (sometimes mistaken JAZMA) = The Japan Automotive Standard Muffler Association

It is NOT a brand, but a certification of Quality or someting like that
http://www.jasma.org/

[SR20_ACT]

SLYEF, on Oct 20 2006, 01:20 AM, said:

dont shoot me im a noob, wat does 56k warn mean seen it a couple of times but have no idea of wat it is.

"Warning 56k" is a warning for people who use 56k dial up modems. It will slow down (dramatically) their connection if they are looking at a thread with lots of photos.