Measure of Power (German and Jap cars)
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German: Alway measure their power (BHP or torque) on the wheels. They always take the average of a number of production cars. Audi, BMW and Mercedes do this.
Jap: Measure on the fly. But the time the power is transfer to the wheels, there is loss of power of 10%~20%. Tend to take the best performance of the production car.
I am not baise against Jap. Anyone cares to comments. -
i heard about that as well.
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and in eurpoe they measure power by Torque while jap ppl measure it by BHP....thats y u see theat european cars are very torquey (esp. mercedes) while cars like honda are very revvy but have little torque
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errrr, not true leh fren. torque is torque, power is power, u cannot compare torque with power, or power with torque. the unit of torque is Nm, the unit of power is Kw.Originally posted by AE86tofu:and in eurpoe they measure power by Torque while jap ppl measure it by BHP....thats y u see theat european cars are very torquey (esp. mercedes) while cars like honda are very revvy but have little torque
generally, cars with large displacement/ undersquare blocks tend to put out more torque whilst oversquare blocks tends to produce more power, so it comes as no surprise that continental cars produce more torque then jap cars. personally, i think continental cars offers a more refined ride as compared to the raw feeling of a jap mobile. if i got the dough and i m spoilt enough, i'd prolly go buy myself the M3.
in thepower department, i think there are differing schools of thoughts when it comes to producing power. the japanese are more for forced induction whilst the europeans tend to border on pure displacement advantage whilst retaining the NA charateristics. the most they do is supercharge, but seldom see them turbo charge their cars. -
but when they do, the results are wild beasts!!!Originally posted by tailslide:the most they do is supercharge, but seldom see them turbo charge their cars.
B.Engineering Edonis
Bugatti Veyron
Porsche 911 Turbo
Lancia Delta Integrale
Peugeot 205 T16 -
Ok this one I gotta agree...German cars are more refined...that one is a fact...Torque=acceleration BHP=top speed (correct me if i'm wrong) which is y u find that mercs have more pulling power even though their engine is only 2liters(I'm talking abt the older mercs with the square lights...not the current Supercharged E200s) in terms of torque they are more and they are better engineered which results in better reliablity...those cars can last for 20years man....and yes...NM is for torque..shucks...looks like I'm the only one measuring it in Ft/Lbs anyone knows the conversion rate? and those E200s fare better than a 2.0 accord or a mazda 6 2.0L (I'm talking abt those older mercs again)Originally posted by tailslide:errrr, not true leh fren. torque is torque, power is power, u cannot compare torque with power, or power with torque. the unit of torque is Nm, the unit of power is Kw.
generally, cars with large displacement/ undersquare blocks tend to put out more torque whilst oversquare blocks tends to produce more power, so it comes as no surprise that continental cars produce more torque then jap cars. personally, i think continental cars offers a more refined ride as compared to the raw feeling of a jap mobile. if i got the dough and i m spoilt enough, i'd prolly go buy myself the M3.
in thepower department, i think there are differing schools of thoughts when it comes to producing power. the japanese are more for forced induction whilst the europeans tend to border on pure displacement advantage whilst retaining the NA charateristics. the most they do is supercharge, but seldom see them turbo charge their cars. -
In Singapore, the low end torque is more important. Our roads have so many traffic lights. High end torque is great for over taking while cruising.
Anyway, you cannot have high torque and high bhp, you must sacrifice one of them unless you have huge displacement. That is why supercharge and turbo come in.
Have you guys try the new audi a4 1.8t? The mutitronic (aka CVT) gear box is a gem. It feels smooth and fast with very even accelation without even flooring it. Alas it is a front wheel drive. -
u can turbo a car and gain more torque too!
my airtrek turbo R which is 2l turbo, runs a low boost pressure, hence the power is lower at 240bhp even though it has the same engine as the EVO7. but the max torque of 343Nm comes out at a low 2500rpms, as opposed to the EVO7's max torque of 392Nm coming out at only around 4000rpms.
oh i've just remembered the europeans love to turbo their cars too, esp the scandinavian brands. all Volvos n Saabs have turbos. -
dun 4 get renault....they are the pioneers of turboOriginally posted by HENG@:u can turbo a car and gain more torque too!
my airtrek turbo R which is 2l turbo, runs a low boost pressure, hence the power is lower at 240bhp even though it has the same engine as the EVO7. but the max torque of 343Nm comes out at a low 2500rpms, as opposed to the EVO7's max torque of 392Nm coming out at only around 4000rpms.
oh i've just remembered the europeans love to turbo their cars too, esp the scandinavian brands. all Volvos n Saabs have turbos.