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Engine terms...

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plex
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Engine terms...

Postby plex » July 3rd, 2005, 7:34 pm

PORTED ! The inlet and exhaust ports in the cylinder head are machined/ground out to carry a volume of air/fuel mixture into the engine.

Polished! The ports in the head are polished to remove casting marks. This helps to reduce turbulence and friction, allowing the air to move more freely.

Big Valve Head ! The cylinder head is fitted with bigger diameter valves to increase the flow volume, with the area under the valve head machined out to suit.

High Lift CAM! Upgraded camshafts with lobe angles and lift height altered to increase power, by allowing more fuel/air past the valves as they are basically open longer.

Balanced ! Pistons and con-rods are balanced in weight to avoid any unwanted vibration and uneven stress on the crank. The crank is dynamically balanced whilst moving like and standard wheel to avoid any vibration.

Solid Lifters ! Machined parts to replace the hydraulic lifters for the valve opening operation, usually used to gain a higher rev range restricted by the oil driven original design.

Bored Out! This term just means that the cylinder bores have been machined to accept oversized pistons, therefore making the capacity of the engine greater.

Lightened Flywheel ! Either a machined standard cast iron flywheel, or for higher revving engines, a purpose built lightweight jobbie usually machined from billet steal. This will allow the engine to rev quicker, though a smooth idle may be sacrificed.

Forged Racing Pistons ! High quality forged/machined racing pistons that are used to once again replace inferior factory ones. They are designed to be light weight, can withstand far higher revs ranges. Only of use in a highly tuned motors.

Vernier Pulleys! Aftermarket cam pulleys that directly replace the standard items. They incorporate a lockable adjusting mechanism to allow fine precision valve timing to gain maximum power in desired areas.

I learning here, correct me if i wrong here with my terms...

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~Vēġó~
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Postby ~Vēġó~ » July 3rd, 2005, 10:31 pm

Solid Lifters ! Machined parts to replace the hydraulic lifters for the valve opening operation, usually used to gain a higher rev range restricted by the oil driven original design.



was wondering whether there is some replacement for the gdi!

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Greypatch
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Postby Greypatch » July 4th, 2005, 10:43 am

nice post man ...ah saving this sheit

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bleedingfreak
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Postby bleedingfreak » July 4th, 2005, 11:39 am

Good... so where the rest? :twisted:

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bleedingfreak
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Postby bleedingfreak » July 4th, 2005, 11:49 am

Links to Glossaries and Dictionaries and etc :D

Hundreds of definitions! Lots of technical jargon for us techies too! :)
http://www.autoglossary.com/

Illustrated Auto Glossary - Just a handful, but helpful and useful nonetheless
http://www.samarins.com/glossary/

This one take win! Look at entries! :shock: :shock:
http://www.enjoythedrive.com/glossary/

Automotive Insurance Glossary
http://www.libertymutual.com/omapps/Con ... Red&c=Page

Some commercial terms as well as technical terms
http://www.seriouswheels.com/car-glossary.htm

plex
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Postby plex » July 4th, 2005, 6:02 pm

fellas add to it..make it a sticky if u like...

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TurboDrive
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Postby TurboDrive » July 4th, 2005, 7:07 pm

Good stuff man. Something worth saving.

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bleedingfreak
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Postby bleedingfreak » July 4th, 2005, 9:30 pm

Yeah this Stickifiable :mrgreen:

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Postby Maserati » July 5th, 2005, 1:00 am

good post

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~Vēġó~
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Postby ~Vēġó~ » July 8th, 2005, 9:39 am

even more good links.....take ah ^BumP^ fuh dat........

plex
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Postby plex » July 8th, 2005, 12:26 pm

bleedingfreak, good links.. 8)

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Yeo
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Postby Yeo » July 8th, 2005, 2:09 pm

Excellant info!

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bleedingfreak
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Postby bleedingfreak » November 2nd, 2005, 3:07 pm

This never get Sticky?

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flatline
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Postby flatline » November 2nd, 2005, 3:15 pm

now it is

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VW_Exec
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Postby VW_Exec » November 2nd, 2005, 3:17 pm

HOORAY FOR FLATLINE....

:?

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Rx
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Postby Rx » November 2nd, 2005, 7:04 pm

good job PLEX :!:

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redras
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Postby redras » November 2nd, 2005, 9:03 pm

really good post 8)

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Postby Cid » November 2nd, 2005, 9:42 pm

good info :!:

plex
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Postby plex » November 3rd, 2005, 2:10 am

flatline, thank you for putting this thread as a sticky..

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Rudman
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Postby Rudman » November 3rd, 2005, 3:42 pm

Yea flatline, good move.

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bleedingfreak
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Postby bleedingfreak » November 7th, 2005, 9:16 am

Hi Folks!

Just a lil more terms we should get acquinted with.

These are specific to tyres, wheels, etc.

Hope they help!


"bead" means that part of a tire, made of steel wires wrapped or reinforced by plies, that is shaped to fit the rim; (talon)

"bead separation" means a breakdown of bond between components in the bead;

"bias ply tire" means a tire in which the plies that extend to the beads are laid at alternate angles substantially less than 90 degrees to the centreline of the tread;

"carcass" means the structure of a tire without the tread and sidewall rubber;

"chunking" means the breaking away of pieces of the tread or sidewall of a tire;

"cord" means the strands forming the plies of a tire;

"cord separation" means the parting of cords from adjacent rubber compounds;

"cracking" means any parting within the tread, sidewall or innerliner of a tire extending to the cord;

"CT tire" means a tire that is designed to be mounted on a rim in such a manner that the flanges of the rim extend radially inward so as to be enclosed inside the air cavity of the tire;

"innerliner" means the layers that contain the inflating medium within a tire and form the inside surface of a tubeless tire;

"innerliner separation" means the parting of the innerliner from the cord;

"light truck tire" means a tire designed by its manufacturer for use on lightweight trucks or multipurpose passenger vehicles;

"load range" means a letter designation that indicates the maximum load rating of a tire;

"load rating" means the maximum load a tire is rated to carry at a given inflation pressure;

"maximum load rating" means the load rating at the maximum permissible inflation pressure for a tire;

"maximum permissible inflation pressure" means the maximum cold inflation pressure to which a tire may be inflated for normal highway use;

"open splice" means any parting at any junction of tread, sidewall or innerliner that extends to the cord;

"overall width" means the linear distance between the exteriors of the sidewalls of an inflated tire, including elevations due to labelling, decorations or protective bands;

"ply" means a layer of rubber-coated parallel cords;

"ply separation" means the parting of the rubber compound between adjacent plies of a tire;

"radial ply tire" means a tire in which the plies that extend to the beads are laid at substantially 90 degrees to the centreline of the tread;

"rim" means a support for a tire or a tire and tube assembly on which the beads are seated;

"section width" means the linear distance between the exteriors of the sidewalls of an inflated tire, excluding elevations due to labelling, decorations or protective bands;

"sidewall" means that portion of a tire between the tread and the bead;

"sidewall separation" means the parting of the rubber compound from the cord in the sidewall;

"size factor" means the aggregate of the section width and the outer diameter of a tire determined on the test rim;

"test rim", with reference to a tire to be tested, means any rim that is listed as appropriate for use with that tire in accordance with a tire and rim document where the document includes the dimensional specifications of the rim and a diagram of the rim;

"tread" means that portion of a tire that comes into contact with the road;

"tread rib" means a tread section running circumferentially around a tire;

"tread separation" means the parting of the tread from the carcass; (séparation de la bande de roulement)

"truck" has the same meaning as in subsection 2(1) of the Motor Vehicle Safety Regulations. (camion)

Taken from: Motor Vehicle Tire Safety Regulations, 1995
http://www.tc.gc.ca/acts-regulations/general/m/mvsa/regulations/mvts/001/mvtsr1-3.html

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pyromaniax
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Postby pyromaniax » February 19th, 2006, 5:51 pm

evrybody tell evrybody to make it ah sticky so flat line do it

"good call flatline,wow flat line" 0X

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Postby cacasplat3 » February 20th, 2006, 2:34 pm

good post :mrgreen:
Lightened Flywheel ! Either a machined standard cast iron flywheel, or for higher revving engines, a purpose built lightweight jobbie usually machined from billet steal. This will allow the engine to rev quicker, though a smooth idle may be sacrificed.

about the idling part, i hear that its because a spinning flywheel keeps the torque on the engine during idle, i noe its true for outboard boat engines but i not sure bout cars. aybody to confirm or reject.

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