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05-25-2020, 02:28 AM | #23 |
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Yes they do. I've seen it a few times now. And they let you know from 2 miles back. Brights flashing like "STAY OUT OF THIS LANE."
But it works because people pay attention, and only use the left lane for passing. ANd there are honestly not so many high speed wrecks here. It's a good car culture.
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05-25-2020, 10:10 AM | #25 | |
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Sure, there will be slightly more wear and tear, since prolonged operation at higher RPM, but oils these days are really good. So as long as you stay on top of the maintenance I don't see any major downside. If anything fuel and tire costs are the main issues.
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05-25-2020, 11:19 AM | #26 |
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I love to see women putting on make up or folks reading the paper or a book while driving.
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05-25-2020, 11:46 AM | #27 | |
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05-25-2020, 12:23 PM | #28 | |
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05-25-2020, 01:03 PM | #29 | ||
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1) Every car has it's "comfortable" range of operation. The M2 will easily cruise at 240-250kph. At 268 it is near redline in 6th gear. 6600 rpm or so, and it takes longer to get there. It is not drag limited, like a lot of less powerful cars, it's rev limited. I think the DCT has an advantage here with the 7th gear, but then the electronic fuel cut off kicks in. But this is where good oil comes into play to extend life of the engine at sustained high RPMs. I'll come back to this later. 2) My wife has a Golf station wagon here. 1.4l Turbo with the DCT. 150 hp, 168 lb-ft. It gets up to about 180 kph in decent haste. From 180 to 220 it's ehhh, and it takes a looooong time to get to 235 kph where it is drag limited. The happy range for that car is under 220 I would say. But the engine RPM at that speed is only 4500. So high load on the engine, but at lower RPM. 3) So why does good motor oil go a long way? At high load, and particularly at high RPM it will stay thick enough to lubricate all the fast moving bits, while staying thin enough to get into the tight places. I used to have a 2014 Mustang GT with the 5.0L Coyote motor. I tracked that car a lot. And I did oil analysis to make sure it was happy. And it was. With 7000 miles of city driving, and 8h of track time at sustained high load and high RPM, the oil was still 50% through it's life cycle, with expected viscosity across the temps, and with good amount of life in additive packages. That car by the way pulled HARD till about 150mph. Then is started feeling it's own aerodynamic profile. I've had it up to 165mph before and it was still accelerating, but I ran out of road, and I'm sure there wasn't much left anyway. and finally 4) The thing that hurts cars a lot more than using them hard within their design parameters, is modifying them without good understanding of what these mods do. Running more boost, higher RPM limits, more fuel being injected across the board is what really does the damage. It can overpower the cooling capacities of the car, thus shortening the life. But if you have a unmodified car, and you stay up on maintenance, use it like it was meant to be. High load, high speed and all. Quote:
You are right. Polish roads are narrow, much more crowded and vodka runs deep. Crashes are big and plenty, as speed and overtaking have become a form of drug.
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6MT, Driver's Package --> SOLD 2018 Camaro SS 1LE. Because race car! "Redline a day keeps the mechanics away" Last edited by 5.M0NSTER; 05-25-2020 at 01:11 PM.. |
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05-25-2020, 01:35 PM | #30 | |
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05-25-2020, 04:29 PM | #32 |
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Apparently this was a "safe" stunt....until a family of four makes a lane change and the Audi RS6 penetrates their car from behind at 140 MPH.
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Last edited by racerbruce; 05-26-2020 at 07:49 AM.. |
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05-25-2020, 04:30 PM | #33 | |
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If the clearances are tight, normal break in is fine, if the clearances are a bit on the wide side, hard break in is needed. Many Mustang V8s consume a quart per 1000miles. And in my opinion it's because they have wider ring gap, necessitating a harder than usual break in. My Coyote ate 1/2 a quart in the first 3000 miles. Than I took it to the track, right at the 3k mile mark. It ate another 1/2 quart in the first 2 morning sessions, and not an ounce more till I sold it at 35k miles and 5 years later (including another 12 track days). This tells me it needed more heat to properly seat the rings than one can get on the street. That's my hypothesis anyway.
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05-25-2020, 05:55 PM | #34 |
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05-25-2020, 07:32 PM | #35 | |
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My UK M5 friend -
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Such command of the language!
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06-16-2020, 11:32 PM | #38 |
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