lobuxracer

iTrader: (2)

Torque at the engine doesn't mean much. Area under the torque curve means a lot, and gearing takes care of the rest. Torque at the wheel is what really counts. Rather amazing how fast those F1 cars accelerate with less than 400 lbft of torque. And if it really was all about torque, everyone would own a diesel. They rule for torque.

I only care about the power curve because I can fix torque with the gearbox as the F1 cars so elegantly prove.

FD3SISF

iTrader: (2)

Time to try out some runs with the E63.

dmvp29

This is correct. Area under the torque curve (normalized for weight) is the best approximation for performance. Gearing and other factors also come into play, so even that is not perfect.

But citing peak horsepower is just a really bad way to assess straight line performance. I don't understand the industry's fascination with peak HP. peak HP/weight is slightly better. Area under the torque curve is a lot better, if you had to cite just one number.

anxiouz

iTrader: (9)

RCM83

iTrader: (1)

Ya I really love the C63, considered getting one but couldn't find one close to test drive, found an F real close and the rest is history. A used F is honestly probably a stretch for me financially and a much higher car payment would probably not be wise. If i had money to burn I probably would have picked up a C63 but for me I can't afford the car and random stuff breaking all the time. With the F I don't feel like I ever need to worry about it (plus it was 1700 for an extra 4 years of coverage)

ISF001

And more...






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2URGSE

I agree with the area under the curve, was just giving an idea of the car's advertised power since it ran away from the 'F'.

PhiDeltBee

iTrader: (1)

Well, I give credit where it's due. He pulls me ever so slightly (C63 AMG P31 package). We went out and had a little fun tonight and I just couldn't quite yank him. We went a few times from around 40 to 100 and I jump ever so slightly and he'd real me in by the time we got off the gas. Was really hoping to be right there with him but it just wasn't happening. I guess a tune would be my only saving grace. That's a fast car.

Lexura1414

iTrader: (6)

Did you go at it from a dig?

PhiDeltBee

iTrader: (1)

Same from a dig. I was thinking I just couldn't hook up, but it didn't matter. He was driving with the car in automatic. I was in manual and sport mode and bouncing the limiter ever so slightly. Just couldn't take it. It was VERY close, but no matter what, I couldn't pull. I'm a bit bit disappointed but it is what it is. I thought I could take him after beating an E63, but I didn't. I must say the P31 is an impressive car. It does make me feel better that he beat a Boss 302 much worse.

Lexura1414

iTrader: (6)

So, is he completely stock that he was driving it only in automatic? Was he that completely confident that he could beat you? Or is the AMG really faster in automatic?

Sorry for the questions..

DRE1615

First vid may have been me. I always had the edge against my buddy's M3. Makes me miss the isf.

ToothDoc

I'm actually surprised that the C63 walked you. HP vs. HP wise, with full headers and exhaust you guys should be similar (unless he's underrated) and then the 200 pounds. Wait, did you keep the subs in?

AussieISF

I test drove the C63 yesterday with the performance package. The salesman told me "we're doing big deals on these at the moment because we have 5 demonstrators we need to sell". He was trying to get me to hop over from my F to a C63 by taking over my loan and increasing the monthly payments slightly.

I took it for quite a long drive, and there are pluses and minuses. Maybe I went into it thinking the C63 would be a torque monster, but when I really got into it, I didn't feel it had that much more than my F with an exhaust. It did sound good, but so does my F. The C63 sounds more agricultural and muscle car, the F sounds a bit more race car like.

The F felt more nimble to me, the C63 really needed some finesse in laying down power to prevent wheelspin.

The interior was nice, but so is the F. The F's seats are more comfortable. The F is probably more reliable. The C63 has more street cred. And the list goes on.

At the end of the day, I simply could not find a reason to switch over. The C63 would be very tempting if I didn't already have the F, but as it is now, it's not big enough for me to switch over and contend with higher running costs and possibly less reliability.

PhiDeltBee

iTrader: (1)

He actually DOES believe its underrated. He thinks its more in line with 510hp, but they cant advertise that. Much like how BMW has their 335i. It ran more like a CTS-V! Yes, I did have my sub in and it's probably 50lbs. Also had 3/4 tank of gas to his 1/2 tank. Remember it was VERY close. He was just barely inching on me. He said I was much faster than a Boss 302 he had beat up on.