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      06-18-2009, 09:13 PM   #1
johnsondg
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How she feels going 140+ mph...

So, had the day off and took the E92 M3 to a closed road for a little post break-in driving. Had her up to 140+ several times and this is what I observed (tell me if you guys have ever had the same experience). As far as the EDC settings go, I tested all three at various high speeds. Unless the road you are on is perfectly smooth and straight, I feel sport mode tends to feel less controlled and the vehicle slightly oscillates. Both normal and comfort modes felt a little more stable. Normal mode with the power button engaged seemed to feel the safest. Thoughts?
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      06-18-2009, 10:13 PM   #2
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Only 140+?

Push it even further beyond that next time......Maybe 170+ if you have the limiter removed.
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      06-18-2009, 10:46 PM   #3
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So, had the day off and took the E92 M3 to a closed road for a little post break-in driving. Had her up to 140+ several times and this is what I observed (tell me if you guys have ever had the same experience). As far as the EDC settings go, I tested all three at various high speeds. Unless the road you are on is perfectly smooth and straight, I feel sport mode tends to feel less controlled and the vehicle slightly oscillates. Both normal and comfort modes felt a little more stable. Normal mode with the power button engaged seemed to feel the safest. Thoughts?

Agreed. The track needs to be pretty smooth for Sport to be the fastest, IMHO.

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      06-18-2009, 11:41 PM   #4
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Where is this closed road?
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      06-19-2009, 12:03 AM   #5
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Where is this closed road?
juarez, mx
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      06-19-2009, 03:38 AM   #6
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140+ with springs definitely doesn't feel as nice as stock. In a way it's good though, kind of keeps me from going over 140+
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      06-19-2009, 08:50 AM   #7
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140+ with springs definitely doesn't feel as nice as stock. In a way it's good though, kind of keeps me from going over 140+
With Dinan's Stage I springs it feels rock solid and superior to stock.

Did you have your car aligned after your install? Which springs? Too big a drop and compressing the bump stops too much at speed would not be nice.

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      06-19-2009, 10:24 AM   #8
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where in the hell in Charleston are you getting multiple runs of 140+? i sure would like to go there.
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      06-19-2009, 12:18 PM   #9
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juarez, mx
Where at? Just curious. I live just across the border in El Paso, but with all the killings and kidnappings, haven't crossed in a while. Have you tried the Columbus highway on this side???
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      06-19-2009, 12:30 PM   #10
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I hit 160+ a couple of time a week (I know a secret place) and the car feels very stable and comfortable enough to maintain those speeds even with the top down. I never felt unsafe.
EDC=Comfort (I think)
RD Sport springs.
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      06-19-2009, 01:43 PM   #11
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Not really a closed road...more like a country road with little to no traffic. It's a remote road out in Summerville. There are a few. No one ever around. I use the V1 to stay out of trouble. And yes it's paved. Even better than I-26/526. Used to take my E46 ZCP out there once in a while. I can PM with details if you want.
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      06-19-2009, 01:49 PM   #12
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Not really a closed road...more like a country road with little to no traffic. It's a remote road out in Summerville. There are a few. No one ever around. I use the V1 to stay out of trouble. And yes it's paved. Even better than I-26/526. Used to take my E46 ZCP out there once in a while. I can PM with details if you want.
Would love to know your secret as well.
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      06-19-2009, 03:02 PM   #13
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I sure hope you keep yourself and car in South Carolina. We do not need that kind of driving in our state. We have enough crazies as it is on the highways. We sure as h*** don't need more.
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      06-19-2009, 05:06 PM   #14
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We have just as many crazies down here too...that's why I avoid them all and head for the isolated back roads.
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      06-19-2009, 06:36 PM   #15
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I just came back from doing my ED on my E92 M3. I hit 170 mph on the speedometer until the governor kicked in. I was driving on D without any adjusted settings. The car feels solid at 160 mph +. The only issue that I experience was under hard braking from 140 mph the front end wobble side to side. Anyone has experienced this under hard braking?
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      06-19-2009, 08:01 PM   #16
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... The only issue that I experience was under hard braking from 140 mph the front end wobble side to side. Anyone has experienced this under hard braking?
No, not at all. At VIR we were constantly slowing from 140 to around 50 with rock steady braking. How many miles are on your brakes? Is there any chance they got warped somehow? You probably need to have a pro check them over.

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      06-19-2009, 08:52 PM   #17
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As an instructor at a recent Street Survival School, I demonstrated the ABS in my E92 to a student. In order for the student to feel the effect, I wanted an extended period of ABS activity, thus I made two runs, probably in the 110 mph range. Full braking was applied, ABS functioning normally. No issues at all. Car tracked perfectly straight.
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      06-20-2009, 07:30 AM   #18
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Quote:
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No, not at all. At VIR we were constantly slowing from 140 to around 50 with rock steady braking. How many miles are on your brakes? Is there any chance they got warped somehow? You probably need to have a pro check them over.

Dave
400 miles
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      06-20-2009, 08:05 AM   #19
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400 miles
You've got a problem. BMW may be a little upset if you tell them it's unstable in braking down from 140 mph after they told you not to take it over 105 for the first 1200 miles.

Perhaps you hadn't even bedded the brakes well. I think that you need to take it easy for another 800 miles then have them do the service. Try some hard braking from 100 or so and report how that is to the tech when you take it in.

Don't hold it with brakes after hard usage. If someone were to brake from 140 to zero and then sit there and hold the car at a stop, in gear, before cooling the brakes, that would warp the brakes. Depending on the heat that you gnerate, it could take only one stop to ruin the rotors.

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      06-20-2009, 09:16 AM   #20
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I agree with dcstep.

Quote:
You've got a problem.
Unless you bedded in your brakes, no wonder the car shook its head. The pads /rotors were not conditioned to take the heat such a stop would have generated. Depending upon what you did next will probably be key in what damage you have done. If you have continuing problems, all in all, sooner than later you will need to have BMW look at it.
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      06-20-2009, 08:38 PM   #21
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I think 400 miles is enough time to bed in the brakes. But I will test it again from 100 mph when I get it back in five weeks.
The rotors are not warped, otherwise I would have felt them under braking. My test from 140 mph was done on the autobahn with plenty of time for the brakes to cool off.
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      06-20-2009, 09:13 PM   #22
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Quote:
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140+ with springs definitely doesn't feel as nice as stock. In a way it's good though, kind of keeps me from going over 140+
huh? I'm strongly wanting to get RD Sport springs, but I hate to hear that they'll affect my m3 in a negative way.

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I hit 160+ a couple of time a week (I know a secret place) and the car feels very stable and comfortable enough to maintain those speeds even with the top down. I never felt unsafe.
EDC=Comfort (I think)
RD Sport springs.
So you feel that with springs, the m3 feels perfectly fine at those speeds?
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