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Discussion Starter · #1 ·
Does anyone have experience with all three i-6 cars (beyond just reading spec sheets)? I've seen a bunch of thread recently where generalized comparisons are made between the 540i and the sixes collectively, and this seems problematic. The 525i has 175hp, the 528i 193 hp, and the 530i 230 hp. That means that the hp difference between a 525i and 530i (55 hp) is nearly the same as the difference between a 530i and a 540i (63 hp).

We all know that the 540i is much faster than the 530i, but is the 530i superior to the 525i to the same degree? (Not sure where the 528i fits in, but I'd be interested in hearing anyone's comparisons between it and the other two sixes as well).
 

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The 525s have 184 hp. At least the 2001 does.

Edit: the 530 has 225 hp, making the difference 41 hp between the 525 and 530...
 

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A wise mechanic once told me: hp is what you read about, torque is what you feel :D

The shear displacement of the v8 is sufficiently significant to make the step from i6 to v8 much larger than across the i6 motors.

As for a 2001 525... that's only for the wagons. The sedans had the 530... Anyone know why bmw decided not to send us a 530it?
 

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Well, the 540i is a major step up, in OVERALL performance feel, throttle response, gearing, etc. For all variables, I don't think it's fair to even draw any conclusions from the 540i, based on performance with respect to any of the E39 I6 based models.

The whole of what the 540i offers is a package based on varying degrees of gearing, torque, power-band differences, overall feel, performance, sound. Too many differences (some may say minor until they actually experience first-hand) sum up to one whole completely different animal of a car, namely the 540i.
 

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Discussion Starter · #6 ·
A wise mechanic once told me: hp is what you read about, torque is what you feel :D

The shear displacement of the v8 is sufficiently significant to make the step from i6 to v8 much larger than across the i6 motors.

As for a 2001 525... that's only for the wagons. The sedans had the 530... Anyone know why bmw decided not to send us a 530it?
There are 525i sedans as well.
 

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Discussion Starter · #7 ·
Well, the 540i is a major step up, in OVERALL performance feel, throttle response, gearing, etc. For all variables, I don't think it's fair to even draw any conclusions from the 540i, based on performance with respect to any of the E39 I6 based models.

The whole of what the 540i offers is a package based on varying degrees of gearing, torque, power-band differences, overall feel, performance, sound. Too many differences (some may say minor until they actually experience first-hand) sum up to one whole completely different animal of a car, namely the 540i.
I don't think anybody has questioned the difference between a 540i and any i-6 car, which is why the question is not "what's the difference between a 540i and an i-6 car?"

What I am wondering is whether anyone has personal experience with more than one of the i-6 models and can compare their performance characteristics.
 

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Below, a few facts from Wikipedia. :yawn:

E39 (1996-2004)
E39
2001-2004 E39 sedan (US)
Production 1996-2003
Body style(s) 4-door sedan
4-door station wagon
Layout FR layout
Platform BMW E39
Engine(s) * 2.8 L M52B28 I6, 193 hp (144 kW)
4.4 L M62B44 V8, 282 hp (213 kW)
2.5 L M54B25 I6, 184 hp (137 kW)
3.0 L M54B30 I6, 225 hp (172 kW)
4.4 L M62TUB44 V8, 290 hp (216 kW)
Transmission(s) 5-speed manual
5-speed automatic
6-speed manual
Wheelbase 111.4 in (283 cm)
Length 188 in (477.5 cm) (sedan)
189.2 in (480.6 cm) (wagon)
Width 70.9 in (180.1 cm)
Height 56.5 in (143.5 cm) (sedan)
55.7 in (141.5 cm) (2000-03 540i sedan)
56.7 in (144.0 cm) (1997-99 wagon)
55.8 in (141.7 cm) (1997-99 540i sedan)
58.5 in (148.6 cm) (2000-03 wagon)
Related BMW X5
BMW M5

See also BMW E39 for more information

The BMW E39 was one of BMW's most successful cars, with several different models. These included:

* 1996***8211;2000 520i - 2.0 L M52B20 I6, 150 hp (110 kW)
* 2000***8211;2003 520i - 2.2 L M54B22 I6, 170 hp (127 kW)
* 1996***8211;2000 523i - 2.5 L M52B25 I6, 170 hp (125 kW)
* 2000***8211;2003 525i - 2.5 L M54B25 I6, 184 hp (137 kW)
* 1996***8211;1999 528i - 2.8 L M52B28 I6, 193 hp (144 kW)
* 1999***8211;2000 528i - 2.8 L M52B28 TU I6, 193 hp (144 kW)
* 2000***8211;2003 530i - 3.0 L M54B30 I6, 231 hp (172 kW)
* 1996***8211;2003 535i - 3.5 L M62B35 V8, 245 hp (183 kW)
* 1996***8211;1998 540i - 4.4 L M62B44 V8, 282 hp (213 kW)
* 1998***8211;2003 540i - 4.4 L M62TUB44 V8, 290 hp (216 kW)
* 1998***8211;2003 M5 - 4.9 L S62 V8, 400 hp (298 kW)
* 2000-2003 520d - 2.0 L M47D20 diesel I4 134 hp (100 kW)
* 2000-2003 525d - 2.5 L M57D25 diesel I6 161 hp (120 kW)
* 1997-2000 525td - 2.5 L M51D25TU UL diesel I6 115 hp (85 kW)
* 1996-2000 525tds - 2.5 L M51D25TU OL diesel I6 143 hp (105 kW)
* 1998-2000 530d - 3.0 L M57D30 diesel I6 181 hp (135 kW)
* 2000-2003 530d - 3.0 L M57D30 diesel I6 190 hp (142 kW)
 

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I've owned both the 2.5 and the 3.0 (in a manual X5) and I can tell you that even with the extra weight of the X5, it was faster than my manual sport 525i.
 

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Discussion Starter · #10 ·
QUOTE: Below, a few facts from Wikipedia.


Again, I was asking for personal experience, not spec sheets. I wouldn't waste forum space by asking a question that could easily be answered by 5 minutes of web searching (I'd just ask one of my research assistants).

Thanks for copying the wikipedia entry, but I've seen it, along with the bimmer mag article, and was looking for someone's experience.
 

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525i didn't start until 2001 model year...sedans and wagons.
 

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I drove a 525 and 530 when I was car-shopping, and there is a very noticeable difference.
 

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5 series vs new 1 and 3 series engines

You wanna talk about differences between 5's engines, check out the new 1 and 3 series engines vs the 520's. We are in the process of getting a new car to replace the SUV (Denali) we dont need anymore. I love, love my 530, it is my daily commuter. But when comparing the 300HP 1 series and the twin turbo 300+ 3 series vs the under 300 hp 5 series and the HP to weight ratio, the 5 series will be eating dust to these smaller cars. What gives?
 

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You wanna talk about differences between 5's engines, check out the new 1 and 3 series engines vs the 520's. We are in the process of getting a new car to replace the SUV (Denali) we dont need anymore. I love, love my 530, it is my daily commuter. But when comparing the 300HP 1 series and the twin turbo 300+ 3 series vs the under 300 hp 5 series and the HP to weight ratio, the 5 series will be eating dust to these smaller cars. What gives?
The 135i and the 335i have the exact same motor and power output. They are smaller and lighter than the 5 series and put out over 300hp so of course they will be faster. What's not to understand?
 

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I have a fully loaded 525 and my dad has a 530 (both with the sport packages). General driving on both highway and streets, I personally can't feel a huge difference unless I'm driving balls out WOT, in which the 530 will edge out the 525 in acceleration.

Although driving either makes me miss my old modified Grand Am oddly enough- running low 15's feels remarkably fast compared to my 5. lol But I didn't buy the 5 for speed.
 

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I have owned both 525 and 530

I had a 2002 525i and drive for 57K miles before it was totaled in an accident. I then bought a 2003 530i and have been driving it now for 28K miles. The difference is quite noticeable. The 530i has more useful torque and greater upper end horsepower. However, it seemed like the I6 in the 525i was a little smoother - less power, but smoother. I know its not just my cars, I drove other 530s and think the engine sounds and feels a bit rougher - but in a good way that lets you know there is just a bit more power. I love my 530i and with regular maintenance, good fuel (at least 91 octane) and my recent VANOS seals update, I have been told by several people including BMW mechanics that it is one of the smoothest and best driving 530s they've seen for its age. That's the real beauty of the I6 motor - its not the brute, raw power and torque, but the smoothness and consistency of power delivery of a well maintained inline motor. I do recommend the 530 over the 525 if your driving style is sporty. Its just better for that application. :thumbup:
 

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Discussion Starter · #20 ·
I had a 2002 525i and drive for 57K miles before it was totaled in an accident. I then bought a 2003 530i and have been driving it now for 28K miles. The difference is quite noticeable. The 530i has more useful torque and greater upper end horsepower. However, it seemed like the I6 in the 525i was a little smoother - less power, but smoother. I know its not just my cars, I drove other 530s and think the engine sounds and feels a bit rougher - but in a good way that lets you know there is just a bit more power. I love my 530i and with regular maintenance, good fuel (at least 91 octane) and my recent VANOS seals update, I have been told by several people including BMW mechanics that it is one of the smoothest and best driving 530s they've seen for its age. That's the real beauty of the I6 motor - its not the brute, raw power and torque, but the smoothness and consistency of power delivery of a well maintained inline motor. I do recommend the 530 over the 525 if your driving style is sporty. Its just better for that application. :thumbup:
Thanks taking the time to answer, bro :thumbup:

I see you have a modded 5 and just 2 posts - got any pics around??
 
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