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      08-15-2009, 07:15 PM   #1
CrimsonIvy35i
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M3 at 340 KM/H

Check out this video, of this m3 doing 340km/h!! That is Ferrari territory there! I don't know if this is a repost, but aplogizing in advance!

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      08-15-2009, 07:36 PM   #2
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Typical BMW speedo error, Way high. If he was doing 300-310 he should be happy.
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      08-15-2009, 08:00 PM   #3
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Umm the M3 cant do 211 mph, infact it cant even hit 200 mph.
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      08-15-2009, 08:18 PM   #4
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uh yes without limiter can go around 200. maybe your diesel cant but the M3 can
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      08-15-2009, 08:21 PM   #5
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+1 on a speedo error.
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      08-15-2009, 08:22 PM   #6
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Quote:
Originally Posted by bobbyd1961 View Post
uh yes without limiter can go around 200. maybe your diesel cant but the M3 can
I doubt it. The car would probably be drag limited well before 200. I'd say without a speed limiter you'd see 190 max.
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      08-15-2009, 08:37 PM   #7
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Well it probably isn't stock. Note in the title 460 PS which is about 450 HP and 8,800 rpm is also only with a raised limiter. Agree that 340 kmh is still optimistic but this probably isn't a stock M3.
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      08-15-2009, 09:02 PM   #8
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Quote:
Originally Posted by bobbyd1961 View Post
uh yes without limiter can go around 200. maybe your diesel cant but the M3 can
BS M3 cant do 200mph stock. You have no idea what you are talking about. Back up your comments with facts, which you wont be able to because the M3 CAN NOT do 200 mph. The m3 doesnt even have the gearing to pull it off.
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      08-15-2009, 09:16 PM   #9
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Speedo error FTW!
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      08-15-2009, 09:26 PM   #10
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My calculations indicate that a 6MT E9X M3 with stock gearing and tire sizes will hit 312 kph @8300 rpm, and 331 kph @8800 rpm IF it can generate the necessary power. Depending on the wind conditions, modifications, and if you factor in some speedo error, 340 kph on the speedo might be possible.

Actually, if you freeze the video when the speedo indicates 340kph, you can see that the tach reads about 8500 rpm, which corresponds to a real speed of 320kph IF the tires are stock size.
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      08-15-2009, 09:42 PM   #11
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that fool topped his car off lol
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      08-16-2009, 09:14 AM   #12
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Quote:
Originally Posted by lucid View Post
My calculations indicate that a 6MT E9X M3 with stock gearing and tire sizes will hit 312 kph @8300 rpm, and 331 kph @8800 rpm IF it can generate the necessary power. Depending on the wind conditions, modifications, and if you factor in some speedo error, 340 kph on the speedo might be possible.

Actually, if you freeze the video when the speedo indicates 340kph, you can see that the tach reads about 8500 rpm, which corresponds to a real speed of 320kph IF the tires are stock size.

The M3 has a final drive at 3.846:1 Which might make it possible to reach 200mph if the limited is removed, but its still would be a hard task. However who knows it if has the power or the aerodynamics to pull it off. the 190's sounds more realistic. Everytime a super car hits 200mph you always hear about it being done by some magazine or tester. Still havent heard anythign on the M3 hitting 200mph, Im sure someone will but 340kph, is very hard to believe consider the a bunch of other cars which are much faster then the M3 cant even pull that off. Insert your example here.
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      08-16-2009, 07:35 PM   #13
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Quote:
Originally Posted by Dieselino View Post
The M3 has a final drive at 3.846:1 Which might make it possible to reach 200mph if the limited is removed, but its still would be a hard task. However who knows it if has the power or the aerodynamics to pull it off. the 190's sounds more realistic. Everytime a super car hits 200mph you always hear about it being done by some magazine or tester. Still havent heard anythign on the M3 hitting 200mph, Im sure someone will but 340kph, is very hard to believe consider the a bunch of other cars which are much faster then the M3 cant even pull that off. Insert your example here.
I already said that 340 kph on the dash is most likely speedo error, and also said 320 kph actual might be possible with mods (note the capital "IF" in my previous post). I also said it depends on the modifications and wind conditions--meaning a stock car would most likely not be able to do it regardless of where its redline is. However, the description of the video claims the car has ~450 hp. You objected to gearing, and I said gearing is not a problem if the rev limit is increased slightly to about 8500 rpm. If you take Tightie's FI car out for a ride in the autobahn, and if you are stupid enough to see what it can do, I bet that it will hit 320 kph actual speed or more. There is a $35 simulator called CarTest. If you really want to know if 450 hp is enough, buy it and get a rough "estimate" of how much power is required. I don't know if it models underbody flow effects at high speeds, but it does perform a basic drag calculation. It's pretty accurate otherwise. Maybe Swamp, who owns a copy, can run a test if he is reading this?
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      08-16-2009, 09:48 PM   #14
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Okay.....the stock DCT 7th gear is tall enough for 208mph at 8400rpm...so with more power and a higher redline its possible....but speedo error at that pace would be around 5%.....which puts him at about 201mph....plausible given the stated 460HP....

http://www.rbracing-rsr.com/aerohpcalc.html

E92 is .310 drag with a 23.36 frontal area for an effective frontal area of 7.24 or about the same as a corvette Z06
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      08-16-2009, 10:20 PM   #15
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Wow! I hope that 5% error on the speedo is correct because I'm about to receive a 60 km/h over speeding ticket on the autobahn. Man o' man, it's about 450 Euro, lol.....
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      08-17-2009, 01:38 AM   #16
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When car mags do real world top speed tests not even the big hitters can reach 200mph. R&T couldn't get a Murcielago to 200 even with taping all the gaps and removing the side mirrors, it only hit like 197.

Watch an event like the Silver State classic to see what it takes to go a legitimate 200mph, it's not easy and there are very few cars that can do it without a lot of work.
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      08-17-2009, 07:46 AM   #17
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Quote:
Originally Posted by FStop7 View Post
When car mags do real world top speed tests not even the big hitters can reach 200mph. R&T couldn't get a Murcielago to 200 even with taping all the gaps and removing the side mirrors, it only hit like 197.
My understanding is that all Murcielagos are rated at 205+mph top speed by Lamborgini (even the 572 hp version). They won't provide false ratings--for a company like Lamborgini, too much to lose if the specs are proven to be false. If the magazine couldn't do it, the car might not have been running optimally or wind/road conditions got in the way.
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      08-17-2009, 05:34 PM   #18
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Quote:
Originally Posted by FStop7 View Post
When car mags do real world top speed tests not even the big hitters can reach 200mph. R&T couldn't get a Murcielago to 200 even with taping all the gaps and removing the side mirrors, it only hit like 197.

Watch an event like the Silver State classic to see what it takes to go a legitimate 200mph, it's not easy and there are very few cars that can do it without a lot of work.
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