Wonna talk about plenty of...TORQUE?
10-25-2002 | 02:34 AM
#1
Thread Starter
Moderator Alumnus
Joined: Oct 2000
Posts: 16,399
Likes: 8
From: Washington DC (NOVA)
Wonna talk about plenty of...TORQUE?
We here in America love torque. Down low especially. Check this out.
The new C 30 CDI AMG is the first diesel sports car according to Mercedes. I was checking out the specs of the engine:
Engine is a turbocharged 3.0 liter 5 cylinder inline (hmmm so Volvo-ish)
Power: 231 HP at (ready for this?) 3800 rpm !
Torque: 400 lb-ft at 2000-2500 rpm
On average this much torque appears to engines that make around 400 HP (at much higher rpm of course).
The engine redlines at 4600 rpm
0-62 mph in 6.8 secs for this car and top speed of 150mph.
I just cannot imagine how that much power at so low rpm would feel. In one word, I would describe it as... "effortless". Should be interesting to have had the opportunity to test-drive this car.
The new C 30 CDI AMG is the first diesel sports car according to Mercedes. I was checking out the specs of the engine:
Engine is a turbocharged 3.0 liter 5 cylinder inline (hmmm so Volvo-ish)
Power: 231 HP at (ready for this?) 3800 rpm !
Torque: 400 lb-ft at 2000-2500 rpm
On average this much torque appears to engines that make around 400 HP (at much higher rpm of course).
The engine redlines at 4600 rpm
0-62 mph in 6.8 secs for this car and top speed of 150mph.
I just cannot imagine how that much power at so low rpm would feel. In one word, I would describe it as... "effortless". Should be interesting to have had the opportunity to test-drive this car.
10-25-2002 | 07:17 AM
#5
Happy CL-S Pilot
Joined: Jan 2001
Posts: 9,215
Likes: 1
From: Nashua, NH, USA
Driving that thing is not fun, it like driving a truck, It hauls a ton of stuff but go nowhere fast....
The engine HP dies very quickly ... at 3800 rpm is the max HP and drops to lowest at 4600 rpm.... You need a freaking gearbox too!
The engine HP dies very quickly ... at 3800 rpm is the max HP and drops to lowest at 4600 rpm.... You need a freaking gearbox too!
10-25-2002 | 07:53 AM
#6
Midnight Marauder
Joined: Apr 2001
Posts: 1,356
Likes: 0
From: Baltimore
I don't know much about this car but I think it's going have traction issues. But then again it only has 231 HP.
Torque will get the car moving and keep weight from being an issue but HP is the measure of energy used so with such low HP numbers it's not going to be a rocket like you may think.
Of course it's going to be faster than my car but I don't think you want to have a car that has power numbers that far off from each other.
I wonder how fast those torque numbers drop off by the time the engine revs to 3800 for max HP? If they fall off fast then it's not soo good.
Torque will get the car moving and keep weight from being an issue but HP is the measure of energy used so with such low HP numbers it's not going to be a rocket like you may think.
Of course it's going to be faster than my car but I don't think you want to have a car that has power numbers that far off from each other.
I wonder how fast those torque numbers drop off by the time the engine revs to 3800 for max HP? If they fall off fast then it's not soo good.
10-25-2002 | 05:24 PM
#7
Grammar Police
Joined: Feb 2002
Posts: 196
Likes: 0
From: SF Bay Area
Originally posted by NOMAD
I don't know much about this car but I think it's going have traction issues. But then again it only has 231 HP.
Torque will get the car moving and keep weight from being an issue but HP is the measure of energy used so with such low HP numbers it's not going to be a rocket like you may think.
Of course it's going to be faster than my car but I don't think you want to have a car that has power numbers that far off from each other.
I wonder how fast those torque numbers drop off by the time the engine revs to 3800 for max HP? If they fall off fast then it's not soo good.
I don't know much about this car but I think it's going have traction issues. But then again it only has 231 HP.
Torque will get the car moving and keep weight from being an issue but HP is the measure of energy used so with such low HP numbers it's not going to be a rocket like you may think.
Of course it's going to be faster than my car but I don't think you want to have a car that has power numbers that far off from each other.
I wonder how fast those torque numbers drop off by the time the engine revs to 3800 for max HP? If they fall off fast then it's not soo good.
GOLDEN FORMULA: TQ * (RPM/5252) = HP
Thus,
TQ = HP * (5252 / RPM) = 231 * (5252/3800) = 319 ft-lb TQ.
So it has 400 ft-lb at 2000-2500, and 319 ft-lb @ 3800. Not too
shabby, I'd say, if you only are concerned with random jerks from 0-30 mph. The gearing will reduce that torque ridiculously though, with a redline half as high as hours.
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10-25-2002 | 05:41 PM
#8
The Acura Granddaddy
Joined: Dec 2000
Posts: 629
Likes: 0
From: Federal Way, WA
With that much torque you could put in some really tall gears to make up for the lack of high revs. Im sure AMG put some thought into getting this power to the pavement w/o the car having to sift like crazy.
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