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      02-09-2013, 03:00 AM   #217
swamp2
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Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

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Quote:
Originally Posted by Robin_NL View Post
Nice theory and I agree with that theory, but PRACTICALLY the Excellent Fantastic Masterpiece M3 V8 with >8000rpm is put in the WRONG (read way TOO heavy, meaning feeling lazy at lower and normal revs ) vehicle called E90/92/93.
There is no debate that lighter weight with fixed power is better. There is also no debate that an improved power to weight ratio makes for a faster vehicle. Lastly, there is no debate that most enthusiasts would have preferred a lighter E9X M3.

Quote:
Originally Posted by Robin_NL View Post
Why does a 1M with way less POWER eat the M3 almost for breakfast in any circumstance.
Well, unfortunately that is patently false. However, the reason the 1M comes close the the M3 in some circumstances is because of simple physics in line with Bruce's post.

1. It is very likely underrated.
2. It has an over boost feature which BMW claims makes extra torque but not extra PEAK hp, which either way certainly makes more power at some rpm.
3. It is lighter than the M3 ultimately giving it a close power to weight ratio.

Thus when driven properly and aggressively it is a bit slower than the M3.

In case you missed the part of the debate about power vs. torque it implicitly means those for things all else equal (most importantly weight).

Quote:
Originally Posted by Robin_NL View Post
We all know a M3/1M etc can go to 60 in about 4.5 seconds , can do 155mph or even more
The M3 has got to 60 mph (with 1 foot standard US roll out) in 3.9s. And delimited one can get past 180 mph. The 1M can do neither.

Quote:
Originally Posted by Robin_NL View Post
I know this is a US based site I like very much, but how many of you have tried to go to 60 in 4.5(ok maybe a lot) but the 155mph I guess not many of you/us. (Me >100 of times being near the German border so to speak) . The same theory for going around a track in XX:XX time. We all know you need to put the DTC etc to low/off to get the best results. How many of the M drivers do that actually. (I do) Not many I'm sure(worldwide and on this site). So theory and practice are 2 totally different worlds.
Since when does an aggressive driver make a smart automotive engineer or physicist? I don't care how fast you can drive, you clearly do not understand the basics of automotive performance, specifically with regards to the classic torque vs. power debate.

A couple other other key facts:

1. You do realize that torque is meaningless without also knowing gear ratios? That is basically what hp tells you, the combination of torque and rpm. That is why hp tells much more than torque.

2. At any given speed if two equal weight cars accelerate the one producing the higher power at that speed will ALWAYS pull on the other car. This is an absolutely non debatable issue stemming from basic physics. The relevant equation is simply a = P/mv, acceleration is power/mass x velocity. Try to substitute torque into the equation and you have a requirement to know rpm! I only said at the same speed, not the same rpm. Get it now?
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E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |
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