06-20-2012, 12:17 PM | #67 | |
Banned
100
Rep 1,265
Posts
Drives: 1973 Jensen Interceptor
Join Date: Oct 2011
Location: Shanghai, People's Republic of China
|
Quote:
BMW and Porsche both offer roadsters, the 2012 Boxster is a 2,900 lb low center of gravity flat 6 mid engine and the 2012 z4 weighs around 3,250 lbs. |
|
Appreciate
0
|
06-20-2012, 12:18 PM | #68 |
New Member
0
Rep 8
Posts |
EPS
I dont think the EPS system will live upto an M3 driver's expectations, but lets hope they get it right or else I will be looking else were next time I change my car.
|
Appreciate
0
|
06-20-2012, 12:26 PM | #69 |
Major General
4458
Rep 9,160
Posts |
|
Appreciate
0
|
06-20-2012, 12:31 PM | #70 | |
Captain
14
Rep 810
Posts |
Quote:
I would argue that 2 and 3 are what most people call the steering feel, while 1 and 4 are called, well, precision and effort. But I fully agree that all of them are very important. The best EPS might be able to get 1, 2, and 4 right, but 3 remains elusive. |
|
Appreciate
0
|
06-20-2012, 12:45 PM | #71 |
Banned
100
Rep 1,265
Posts
Drives: 1973 Jensen Interceptor
Join Date: Oct 2011
Location: Shanghai, People's Republic of China
|
I'm so glad you ve pointed that out, BMW thinks a perfect 50/50 is the way to go actually a slightly lighter steer axle weight is better. Look at f1 cars,super cars none have 50-50 weight distribution.
|
Appreciate
0
|
06-20-2012, 12:52 PM | #72 | |
Captain
45
Rep 852
Posts |
Quote:
Which of course means: we did a half-ass job when testing the new $120k M6 and found out too late that without the spoiler you will crash when traveling at high speed. Here's the thread: http://www.6post.com/forums/showthread.php?t=692330 |
|
Appreciate
0
|
06-20-2012, 12:59 PM | #73 | |
Major
148
Rep 1,201
Posts |
Quote:
If you weren't getting 3) in your S2000, maybe you should have gotten better tires? The S2000 had loads of road feedback. Point being that people are flipping out over this because they can't distinguish between electric steering and drive-by-wire steering.
__________________
'08 E90 w/ just boltons
'09 Z4 sDrive35i w/ just boltons |
|
Appreciate
0
|
06-20-2012, 02:09 PM | #74 |
Captain
14
Rep 810
Posts |
That is simply untrue. There are plenty of people on this board that know quite a bit about how an EPS works that have been participating in this debate. Show me the posts where anyone says anything about DBW steering, which doesn't even exist for passenger cars.
|
Appreciate
0
|
06-20-2012, 03:13 PM | #75 | |
Special Agent
74
Rep 1,731
Posts |
Quote:
__________________
[SIGPIC][/SIGPIC]
|
|
Appreciate
0
|
06-20-2012, 03:25 PM | #76 |
Major General
1075
Rep 5,660
Posts |
This may be a stupid question, but what are the benefits of EPS? And here's my next stupid question: what's broken about hydraulic steering?
I'm just curious. I've heard the rants about EPS. I've driven with it myself and, compared to what my e92 feels like, I'm not nuts about it, but I can live with it. As a practical matter, I'm not likely to buy an M3 (or M anything else) unless there arises a new reason more compelling than those that existed over the past quarter century.
__________________
Cheers,
Tony ------------------------------------------------------------------------------------------ '07, e92 335i, Sparkling Graphite, Coral Leather, Aluminum, 6-speed |
Appreciate
0
|
06-20-2012, 03:46 PM | #77 | |
Captain
14
Rep 810
Posts |
Quote:
In addition, EPS is more compact, easier to tune, and also cheaper to produce. Again, none of these is critical to cars like BMW, but they matter a lot to mainstream cars. So why do these factors affect our cars? I would guess that the suppliers will simply not develop or produce HPS any more. Keep in mind that both Porsche and BMW are buying their steering system from ZF. If parts companies like ZF no longer wants to maintain HPS line, which would be a wise business move as 99% of the market would not miss HPS, then you have no other choice but to tune the EPS the best you can. Or you can make your own steering rack, but apparently nobody does that any more. |
|
Appreciate
0
|
06-20-2012, 03:52 PM | #78 | |
Major General
5410
Rep 5,824
Posts |
Quote:
Even after the first press releases, you would be surprised on how many cars that BMW submit for initial launch photography and film work which are not final examples , some of which is why interiors are often filmed within the confine of studios later.
__________________
The M850i is evidence that BMW have got their mojo back when it comes to dynamic sports cars...
|
|
Appreciate
0
|
06-20-2012, 05:36 PM | #80 |
Banned
100
Rep 1,265
Posts
Drives: 1973 Jensen Interceptor
Join Date: Oct 2011
Location: Shanghai, People's Republic of China
|
|
Appreciate
0
|
06-20-2012, 09:05 PM | #81 | |
Colonel
154
Rep 2,882
Posts
Drives: 991/RR Sport AB
Join Date: Aug 2008
Location: 904 FL
|
Quote:
__________________
2014 Range Rover Sport Autobiography
2012.5 991 C2S 1978 Corvette |
|
Appreciate
0
|
06-21-2012, 02:21 AM | #82 |
Captain
40
Rep 622
Posts |
smoke coming out of the trunk on a brand new F30???? hmm.... I think Im going to stick to my e92 for a while....I havent had smoke come out of my trunk....I thought smoke usually comes out of the front of a car if something is on fire or burning... I guess there is just way to many wires back there because of all this technology they are putting in these cars.... Me personally would rather my trunk not be smoking driving down the road lol. Why cant M improve their engines and transmissions to be bullet proof and fast as hell but also keep to the basics that there is no way a EPS sytem is going to duplicate hydro steering
__________________
[SIZE="2"]Crimson Red E92 335i M-sport 6-speed with MHD custom stage 2+ flash only , 40% E85/93 mix,+ HRE P40S wheels, KW Clubsport, M3 sways,+BMW performance CF Mirrors, BMW Performance CF deck lid spoiler,+ CF interior trim, p3 vent boost gauge,+ LUX angel eyes (11.73@124mph on street tires)
|
Appreciate
1
zamboni1191.00 |
04-08-2014, 01:21 PM | #83 | |
Lieutenant
18
Rep 524
Posts |
Quote:
I think besides fuel savings, one of the primary reasons many cars have gone to EPS is so the cars can still be steered with the engine turned off (Start/Stop systems). This way you can prepare to change course next time you drive away from a stop, etc. BTW, the best possible power steering is hydraulic where the pump is spun by an electric motor. This provides all the benefits of steering feel with all the efficiency (and ability to steer with engine off) of EPS. It weighs a little more and costs a little more to implement, but EPS is too big a compromise to me. This hybrid system has been used in all the Porsche 997 factory race cars as well as the McLaren 12C.
__________________
1973 Porsche Carrera RS 2.7 Carbon Fiber (240hp & 1,890 lbs)
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|