0-100km/h specs provided accurate?

[Smartmax85]

hi all, would like to ask does the specfication of the 0-100km/h timings provided by manufacturers accurate?

[Cerano]

depends on manufacturer to manufacturer.

 

bmw, mercedes tend to underestimate their own vehicle specs

[YellowFlash]

hi all, would like to ask does the specfication of the 0-100km/h timings provided by manufacturers accurate?

 

usually not so accurate because condition for the timing is different, like probably they have higher octane fuel with cooler weather and professional drivers for better launch and gear shifting(if manual).

[Smartmax85]

maybe let me just add , lets say common family cars , and taking all conditions as optimum,

and being launch perfectly.

just curious as always wondering could the stock timing can actually be met as stated in the specification?

[Cerano]

maybe let me just add , lets say common family cars , and taking all conditions as optimum,

and being launch perfectly.

just curious as always wondering could the stock timing can actually be met as stated in the specification?

 

well i believe their test driver is of a certain weight

 

fuel tank filled to how many %

[YellowFlash]

maybe let me just add , lets say common family cars , and taking all conditions as optimum,

and being launch perfectly.

just curious as always wondering could the stock timing can actually be met as stated in the specification?

 

our weather here not as cold and also fuel octane lower, hard to get same timing...

[Cerano]

our weather here not as cold and also fuel octane lower, hard to get same timing...

 

yes

 

even sea level is very important.

 

an NA engine i read will lose 10% of performance with every 1000feet

[YellowFlash]

yes

 

even sea level is very important.

 

an NA engine i read will lose 10% of performance with every 1000feet

 

haha, didn't know this but i guess its gotta do with air pressure/density...

[Cerano]

haha, didn't know this but i guess its gotta do with air pressure/density...

 

read it somewhere.

 

yeah thin-ness of the air

[Smartmax85]

so given all optimum conditions. it cant be met?

[questionedfish]

read it somewhere.

 

yeah thin-ness of the air

 

means the car is actually less efficient at , say, genting?

[YellowFlash]

means the car is actually less efficient at , say, genting?

 

probably that's why u hear ppl saying car feeling breathless when driving up? haha could be part of reason la since atmospheric pressure is lower.

[XEvolutioNX]

you can lump a turbo in it to get all the air u want.... think like that would't lose much power

[Cerano]

you can lump a turbo in it to get all the air u want.... think like that would't lose much power

 

yes turbo/supercharged engines do not have as much of a power loss

[Cerano]

means the car is actually less efficient at , say, genting?

 

depends.

 

if its cold/ air is much denser. horsepower can be affected by as much as 20bhp.

 

but if you wanna talk like genting, its thinner too

[YellowFlash]

yes turbo/supercharged engines do not have as much of a power loss

 

bro, ur merc is kompressor engine(ie supercharged) right? kompressor engine is for all mercs engine?

[Cerano]

bro, ur merc is kompressor engine(ie supercharged) right? kompressor engine is for all mercs engine?

 

correct supercharged. no la

 

only the M271 engine I4.

 

but now got the new CGI turbo M271 engine liaos.

 

if its the M272 V6 engine its all NA

 

same for the AMG M156 V8

Edited June 8, 2010 by Cerano

[YellowFlash]

correct supercharged. no la

 

only the M271 engine I4.

 

but now got the new CGI turbo M271 engine liaos.

 

if its the M272 V6 engine its all NA

 

same for the AMG M156 V8

 

icic...haha, i don't have much knowledge bout merc engines... maybe will do some reading up..