Super interest about cars in depth

zichuan

3 Apr 07, 21:48

hi all,

i am very interested to know more about cars in details specs, hope u guys experience can shet light to me noob. thx..

what is the difference between dohc & sohc ?

what is cylinders / value means ?

what is max power bph means ? why some rpm low some high, got purpose ?

what is max torque ?

how to see tire size and rim size ?

what is 2.0 DOHC i-VTEC / PGM-FI ? good ?

disc brakes vs drum brakes why is pro n con ?

why rims got so many sizes ? got differences ?

hid means what ?

what is vvt or vvt-i ?

what is cvt or cvt-i ?

what is abs with ebd ?

what is smart key ?

what is afs hid lights ? any good and purpose ?

what is ect ? for fuel ?

thx bros.. sorry to be noob, just hope this thread will serve more understanding for me and others, and others want to post behalf on any questions about cars, few free to post too.. cheers

CDL

3 Apr 07, 21:56

those are quite a lot of questions and to be honest i think you'd be better off googling all of it and just asking the questions which you can't find the answers to.

the nets full of plenty information and if u find the right articles you'll definitely be able to find out more.

nOrmalbOi

3 Apr 07, 22:22

I'm just gonna answer one question and hope someone continues.

DOHC == Double Overhead Cam(shaft)

SOHC == Single Overhead Cam(shaft)

The difference is 1 has 2 camshafts and the other as 1 camshaft. AFAIK, the camshaft(s) is/are used from anything from controlling valve angles to helping balance the engine a little bit. Not a pro in this but this is as far as I know.

Next better player for next question!

nOrmalbOi

3 Apr 07, 22:24

and for Honda questions, SHC is ur fren

Garage R

3 Apr 07, 22:28

Originally posted by zichuan:
hi all,
how to see tire size and rim size ?
why rims got so many sizes ? got differences ?

hid means what ?

can see tire n rim size from the tyres..go nearer to read..but some ppl see the rims only know what size it is liao..those are pros..like me Laughing

rim got different size..bigger nicer..but smaller better..so up to u lor..

HID means headlights that are very chio 1..u turn it on,it is deem for a sec..then shine brighty..damn nice.. Mr. Green

LH83

3 Apr 07, 22:41

Originally posted by Garage R:
can see tire n rim size from the tyres..go nearer to read..but some ppl see the rims only know what size it is liao..those are pros..like me
rim got different size..bigger nicer..but smaller better..so up to u lor..

HID means headlights that are very chio 1..u turn it on,it is deem for a sec..then shine brighty..damn nice..

Let me try to expand on those answers...

Different sized rims do somewhat affect your ride... Larger rims are nicer, but do somewhat affect handling of the car... not to mention fuel consumption... Not too sure about this, remember reading about this quite a while back...
In a way, yes, bigger LOOKS better... but sometimes smaller rims are better for fuel consumption...

HIDs stand for High Intensity Discharge lights... these are those very bright lights you see on some cars these days. Some cars come stock with them, others come as additional options... HIDs are not just chio... they do give off a more intense light than normal conventional headlights, but the danger is the glare they give off to oncoming traffic that could blind drivers if the lights are not directed to the ground. In such situations, HIDs are a danger to other drivers as they may temporarily blind oncoming drivers, causing them to lose their night vision and they might lose control of the car.

This is especially so when you're driving in areas that are not lit by any overhead lamps, where it is totally dark. If you get blinded by HID lights, there is a risk that you might not be able to see where you are going on the road... and might lose control of the car...

ypeich

3 Apr 07, 22:44

ypeich

3 Apr 07, 23:05

MillionDollar Question:
I would like to increase the horsepower of my car's engine. What's the best way to do this?

http://www.howstuffworks.com/question395.htm

Kuali Baba

3 Apr 07, 23:36

what is the difference between dohc & sohc ? Double and single overhead camshaft. DOHC means there are 2 camshafts controlling the opening and closing of valves. More expensive to manufacture though.

what is cylinders / value means ? No. of cylinders used in the engine. Cylinders are where air and fuel are combusted to push pistons.

what is max power bph means ? why some rpm low some high, got purpose ? Maximum power in Brake Horsepower. If developed at lower engine speeds it's more accessible, but after that the output decreases.

what is max torque ? Maximum twisting force developed by engine

how to see tire size and rim size ? E.G. 195/55R14: 195 denotes tyre tread width in mm, 55 denotes height of sidewall as % of tyre width, R denotes radial construction, 14 is wheel rm diameter in inches

what is 2.0 DOHC i-VTEC / PGM-FI ? good? total capacity of cylinders in engine is 2000cc/2.0 litres, i-VTEC and PGM-FI are a form of valve timing and fuel injection respectively. "Good" depends on more variables than these.

disc brakes vs drum brakes why is pro n con ? Disc brakes are more powerful for lighter vehicles but more expensive to manufacture.

why rims got so many sizes ? got differences ? Weight and appearance are considerations. Bigger rims mean tyre sidewalls have to be shorter and thus stiffer (aids cornering but makes ride more jittery)

hid means what ? High Intensity Discharge

what is vvt or vvt-i ? Variable Valve Timing

what is cvt or cvt-i ? Continuously Variable Transmission

what is abs with ebd ? Anti-lock Brakes with Electronic Brake-force Distribution

what is smart key? A keypod which causes the doors to unlock on their own when you approach the vehicle, and lock when you leave.

what is afs hid lights ? any good and purpose ? As above. Betterr illumination, more expensive

Before you ask more questions, go read up 'How Stuff Works'. Link has been provided above.

alleggerita

4 Apr 07, 00:03

Wow..very detailed answer Kuali Baba..haha..seems like I have nothing much else to answer..but you didnt answer about the valves..

Anyways, valves is openings in a cylinder head where fuel and air mixture goes in and it's also where exhaust gases goes out..and it's controlled by the camshaft above it..cylinders minimum needs 2 valves, one to let in fuel and air mixture in, one to let exhaust gas out..some got 3 valves, but not very common..Merc used to have the 3 valves design..now most common is 2- and 4-valves..for the 4 valves design, 2 valves are used for fuel and air mixture, another 2 for the exhaust gas.. Mr. Green

n0x

4 Apr 07, 00:21

super interest needs super initiative to backup boy....

for starters go www.howstuffworks.com

after which go en.wikipedia.org

or there is always google...

Laughing

no point posting stuff here.. unless u really cannot find... a lot of inaccurate information from pple will distort ur understanding....

sir_boris

4 Apr 07, 00:40

www.google.com

nOrmalbOi

4 Apr 07, 22:34

I guess the baba boi just answered all the questions. he must've been damn bored..

Laughing