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07-14-2013, 03:24 PM | #1 |
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Road trip and top end test (we don't need no autobahn in West Texas)
Took a road trip to Lubbock for a bowling tournament this weekend. The fun begins outside of Coleman on TX153 all the way to Sweetwater on I-20. Then you wait until you get out of Snyder on 84 and you are free to stomp on it to Post. Lot's of open road with no other cars and straight stretches to run it out.
The TX153 part has plenty of broad curves that can be taken at 100 with stretches into them that you can get to 150+ on. With AC on I was able to get 157 but no more. I had several miles of open road when I tried. I was the only car on the road at the time and I had to get to the middle and drive with both hands because it's not a great road for this kind of speed. I downshifted to 4th from about 95 in 7th and floored it. Ran it to 6500 in each gear and then shifted. It was doing around 140 when I shifted to 7th. Made it to 157 in 7th gear and it just wouldn't go anymore. No notice from the car that this was the limiter but since it was only running around 5500 RPM (glancing at HUD), I think that was the case. I had the AC on and was only in sport on the gas but it was sport plus on steering and suspension as well as S3 on shifting. I made a number of tests downshifting to 4th at 90 from 7th gear and then flooring it. Lot's of fun to 140 but it moves more slowly from there. It's a kick to drive the car at 100+ for mile after mile. I did this without the use of a radar detector, there is actually no jurisdiction for speed control in a lot of these areas because there is no magistrate for 20 miles or more in any direction. This is what you get out in West Texas, lot's of empty space and room to run your car as fast as you can without any one bothering you. Course if you blow your engine out there, it's a long way back to wherever you came from. ![]() Here is the route on google. https://maps.google.com/maps?saddr=a...mra=ls&t=m&z=7 On the way back, going through Lampasas, I passed a black E-90 M5 with plates 2008M5. A woman was driving it and I honked, she was startled at first but then realized I was in an M5 and she waved back. Fun trip but didn't bowl too wonderfully. I mainly entered this tournament because I wanted to make the road trip, the field was too strong for me to do much good anyway. Last edited by wrsbmw; 07-14-2013 at 05:30 PM.. Reason: Adding a picture of high speed bug death goop |
07-14-2013, 04:25 PM | #2 |
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Drives: 2013 M5 SSII
Join Date: Aug 2012
Location: San Diego
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157 speedometer indicated? I've seen 165 on the speedo. Which is probably the true 155mph limiter.
The AC compressor will actually deactivate if needed for performance, so that's not slowing you down. Drive safely our there ![]()
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07-14-2013, 04:33 PM | #3 | |
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What I would really like is no limit.................... |
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07-14-2013, 04:47 PM | #4 | |
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07-14-2013, 04:52 PM | #5 | |
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07-14-2013, 05:02 PM | #6 | |
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07-14-2013, 05:02 PM | #7 |
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The gearing calculator shows me that 5,000 rpm in 7th would be 191 mph!!!! Is your M5 a manual trans car? And perhaps you hit the limiter in a lower gear, but as you continued to upshift it just stayed at your indicated 157 mph? I don't know if the electronic limiter would allow the car to continue to upshift while limiting the speed? I would guess it might.
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07-14-2013, 05:07 PM | #8 | |
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07-14-2013, 05:15 PM | #9 | |
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I await the tune that will allow this limit to be eliminated................. |
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07-14-2013, 05:32 PM | #10 |
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Me too! The gearing on this car is such that theoretically, if you had enough HP to push it, it could cruise at 191 mph at 5,000 rpm. That .67 : 1 7th gear is made for high speed operation! Maybe that's why the European version has a limit of 190 mph. Autobahn sustainable performance would be impressive.
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07-14-2013, 05:38 PM | #11 | |
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I am now over 4000 miles on my car and I have only had it 2 months. It hasn't asked for any oil yet either. |
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07-14-2013, 05:48 PM | #12 | |
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It will ask for oil at some point if you do any high rpm driving. |
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