Why do diesels accelerate so slowly even with high torque?

[Cerano]

Have u ever drag race with Sonata Taxi? From traffic light, l slam full throttle. My car launched ahead. Sonata Taxi catch up & overtake me. At that time, my speed already 80km/h.

 

Modern diesel engines max torque is over a range of RPM, like 1,600 - 3,000. Diesel car is used for its fuel efficiency. Manual car is popular is Europe because of preference. FC difference btw manual & auto is not that great except mayb DSG.

 

yes i drag with sonata before. the taxi cannot catch up. my load was driver + 1 passenger. I have ~350nm and double his bhp. somemore my weight much lighter

 

i would think that the sonata's 0-100 is >>8 seconds so any 325 and above would smoke it

Edited May 30, 2010 by Cerano

[Blackseal]

Yap, even new Benz cab also noisy from the outside. I wonder is it because of the design of what, generally diesel cars are noiser, if not, it is just a matter of time, IMHO.

 

Regards,

 

Generally speaking...4 pot diesels are noisier, more vibration....and more clattery....but 6 pots and above diesels are more refined and almost no clatter at all....almost on par or the same as a petrol engine...

[Ferraricalifornia]

i still swear by V12 petrol engines though....

 

that's the best money can buy!!!

[Fcw75]

I swear by VW Touareg R50. V10 TDI, 800Nm of torque. What more can one ask for?

[Ferraricalifornia]

I swear by VW Touareg R50. V10 TDI, 800Nm of torque. What more can one ask for?

 

 

Audi's V12 TDI found on the Q7???

 

haha....

 

[Fcw75]

Audi's V12 TDI found on the Q7???

 

haha....

 

You are right! 1000Nm of torque.

 

But it's sold here? At least VCS tried selling the R50.

[Ferraricalifornia]

they limit the torque on the Q7 V12 TDI....

 

i think it produces over 1100nm-1200nm....

 

gotta limit is as on the 65AMG models from Mercedes AMG range too....

 

anything more than 750Nm is kinda useless for fast off-the-line acceleration....

 

the wheel will keep spinning, without the car moving forward much....when you floor the throttle...

[Blackseal]

they limit the torque on the Q7 V12 TDI....

 

i think it produces over 1100nm-1200nm....

 

gotta limit is as on the 65AMG models from Mercedes AMG range too....

 

anything more than 750Nm is kinda useless for fast off-the-line acceleration....

 

the wheel will keep spinning, without the car moving forward much....when you floor the throttle...

 

A good traction control will cure that spinning problem

[Boyboy]

hehe but brudder the diesel tax how much ah?

 

what tax

 

u mean road tax or tax on fuel? mine G plate lah

[Ferraricalifornia]

for commercial vehicles use, there isn't a penalty tax imposed on them....

 

as for cars though, its now $1.25/cc only for Euro 4 & above compliant vehicles....

[Ferraricalifornia]

A good traction control will cure that spinning problem

 

 

there's a limit to everything one....

 

too much is too much....

 

with over 1000Nm in a car (bar huge heavy vehicles like buses and trucks),

 

the LSD or traction control systems are spinning with the tyres as well...

 

haha...

[York]

Generally speaking...4 pot diesels are noisier, more vibration....and more clattery....but 6 pots and above diesels are more refined and almost no clatter at all....almost on par or the same as a petrol engine...

 

the later version 1.6hdi 16v engine built by PSA grp for citroen berlingo & peugeot partner....is very quiet...can feel like driving a petrol powered car. :)