F80 M3 VBOX Acceleration Results: 4.2s 0-100kmh / 0-62mph

[ake]

Originally Posted by Needsdecaf

Not to mention what we pay for the cars in the base case. 1/3 to 1/2 or even 1/4.

I cannot even put down as many angry smileys as I need without totally ruining this thread.

I'm so glad to have the chance of a lifetime here in the States!

[paddy335]

8.8 to 160, that's impressive.

uae have you done any in-gear tests?

[uae247]

Edit: I thought i was quoting the M5 Vbox results from the thread

I saw this but consider that the poster used this setting in the Vbox

2% slope
1 foot roll was used
0-60mph (vs 0-100kmh)

I would still have the M3 rather than my M6.

[uae247]

Originally Posted by paddy335

8.8 to 160, that's impressive.

uae have you done any in-gear tests?

Not really

What is the benchmark everyone looks for?

[Johnmd]

Originally Posted by uae247

Edit: I thought i was quoting the M5 Vbox results from the thread

I saw this but consider that the poster used this setting in the Vbox

2% slope
1 foot roll was used
0-60mph (vs 0-100kmh)

I would still have the M3 rather than my M6.

M3s have never been about straight line speed. It's a track car.

I guess a lot of these M5 comments are coming because people used to make claims that it would be similar/close performance.

[Audio Fan]

Thanks UAE. That's impressive numbers in sandy conditions. As for the M6 guys, nothing is put to rest. I'm not saying one is faster than the other over any distance or to any level, but conditions play a big roll. I've seen a comparo where they couldn't get either of a GTR or M6 below 4.99 to 60. The best the M6 did was 5.5. I think it was TFL Car.

Plus, if you can pull a 3.8-3.9 or better, as BMW promises or better and you don't have turns, elevations, etc., things will only get better.

Just have enough confidence not to poo poo on a great guy's thread, as soon as he posts numbers.

[gmd2003]

Originally Posted by uae247

Not really

What is the benchmark everyone looks for?

60-130 mph is what people look at for acceleration because it takes traction out of the picture . My Vbox numbers were from a 0 slope 3.8 sec 0-60 , 7.5 0-100 , 11.6 @ 127.4 1/4 mile , 8.15 60-130 mph , 82 degree temps . I appreciate everything you've done , and don't mean to attack you ,you're opinion or you're thread , I'm just responding to those who had unrealistic expectations about the M3/4's straight line performance , that's not what the car is about .

[pkimM3r]

Originally Posted by Boss330

Wow, those are some impressive numbers!!!

0-1000m in 22.0s @ 246km/h. Thats pretty close to the factory quoted 21,9s time.

1/4 mile in 12,2 with a 191,5km/h trap speed. Thats 120MPH trap speed!!!! Stock M5's trap around 120-122MPH AFAIK.

Don't remember the other comparable M5 times at the moment (like 0-200 or 0-250) but it seems like you are pretty close!!!

BTW: Noticed that it didn't shortshift from 1st to 2nd on this run. It revved all the way to 7000rpm before shifting up (still 600rpm before the redline, but not at 6000rpm as in your last video. More traction perhaps?)

EDIT:

BMW M5 (non CP) does 0-200 in 13,0s - The M3 did a 13,4s...

http://www.autobild.de/artikel/bmw-m...t-4175597.html

BMW M5 CP does 0-200 in 12,3s

http://www.auto-motor-und-sport.de/v...72.html?show=3

that is pretty impressive. im also impressed the 0.7s advantage from a cp m5. thought it was only a mild hp bump but i guess an underrated bump as well?

[Audio Fan]

Originally Posted by gmd2003

60-130 mph is what people look at for acceleration because it takes traction out of the picture . My Vbox numbers were from a 0 slope 3.8 sec 0-60 , 7.5 0-100 , 11.6 @ 127.4 1/4 mile , 8.15 60-130 mph , 82 degree temps . I appreciate everything you've done , and don't mean to attack you ,you're opinion or you're thread , I'm just responding to those who had unrealistic expectations about the M3/4's straight line performance , that's not what the car is about .

Where did you run these numbers?

By the way, we all know the 6 is a beast. We just want the 4 to be beastly as well.

[Audio Fan]

UAE, can you tell us how the M3 and M6 feel relative to each other during straight line acceleration? Does the M3 just seem quick or do you get the sense of lots of power through the runs?

[Suave]

Originally Posted by gmd2003

It's actually 118.9 mph . Which on the drag strip because you act the last 60ft would be around 116mph . The 121 traps you quoted are from the strip or avg last 60 ft speeds from mags not raw GPS data . The 60-130 mph is >10 sec so it's over 1 sec slower than a standard M5 at those speeds ( the fastest stock 60-130 m5 time we've seen is high 8.6 . It gets to 200 km/hr which is a little over 124 mph in 13.x seconds . My M6 CP did 0-130 mph in 12.x seconds and 8.19 60-130 mph stock so it's about 2 sec off my car in both respects . ( that's a lot , and puts to rest any is it faster than an M5/6 talk ) . It also is clearly faster than an E92 M3 in both trap and 60-130mph so we can put that to rest too .

I would be wary of making definitive conclusions based on results executed on less than optimal conditions. This was a public road with a bend on a very hot day with an amateur driver. I guarantee that once chris Harris, randy pobst and others do their track testing they will be at 3.7-3.8 and 11.8/11.9. This car is faster on twisties, track, and straight line than a stock M5-M6...Well that is until the upcoming new models come out but even then it would only best the f8x in straight line.

[ybbiz34]

Originally Posted by M4TW

Most use a one foot roll out which will give you a better time. There was some wheel spin to. With the 1 ft roll out, you might have hit 3.9. The 1/4 mile at 12.2 @ 118 mph is pretty awesome and probably bang on if you take into account not using the roll out and the 2 meters more needed for a 1/4 mile. I think with less wheel spin an 11.9 is doable.

You can also play around with short shifting at about 6200 after 2nd gear as others have recommended.

You're a champ. Thanks!!!

Sometimes the one foot roll out times are slower. Launching from a stop, you can use the brakes to let the revs build a bit.

My C63 is usually quicker launching from a stop or with Race Start than with roll out (which usually generates more spin).

[M5Rlz]

Originally Posted by Suave

I would be wary of making definitive conclusions based on results executed on less than optimal conditions. This was a public road with a bend on a very hot day with an amateur driver. I guarantee that once chris Harris, randy pobst and others do their track testing they will be at 3.7-3.8 and 11.8/11.9. This car is faster on twisties, track, and straight line than a stock M5-M6...Well that is until the upcoming new models come out but even then it would only best the f8x in straight line.

I agree... His numbers are impressive none the less and its definitely a low to mid 11 car if all it gets are the same mods as the 63tu [exhaust, intake, piggyback, downpipes, meth]... Maybe 10s since nobody on m5post has had this entire setup at the track... Our best only had back tires, piggyback and downpipes and got 11.08.

Originally Posted by gmd2003

60-130 mph is what people look at for acceleration because it takes traction out of the picture . My Vbox numbers were from a 0 slope 3.8 sec 0-60 , 7.5 0-100 , 11.6 @ 127.4 1/4 mile , 8.15 60-130 mph , 82 degree temps . I appreciate everything you've done , and don't mean to attack you ,you're opinion or you're thread , I'm just responding to those who had unrealistic expectations about the M3/4's straight line performance , that's not what the car is about .

I haven't seen anyone say it would be faster than an m5/m6 although I've not been reading 100s of pages haha.. I can only speak for myself, but I was really just hoping to see a lighter weight car that has the potential once modded to be as good if not better than our cars stock or as good piggybacked.

And it seems based on this data to be at least remotely capable of reaching at least my desired goals for the car, which I'm happy about lol.

[uae247]

One more video of the exhaust from outside
It pops
crackles
and spools

[MrCsquared]

Thanks again uae. Really appreciate all the data. Very impressed with the numbers given the conditions.

These are the numbers us amateur drivers can expect. I'm sure there will be lower times but this is what I expect personally.

This pull appears to be a significant improvement over your first launch video. (obviously due to the 10 degree drop as well as the different shift points)

[Johnmd]

Originally Posted by Suave

I would be wary of making definitive conclusions based on results executed on less than optimal conditions. This was a public road with a bend on a very hot day with an amateur driver. I guarantee that once chris Harris, randy pobst and others do their track testing they will be at 3.7-3.8 and 11.8/11.9. This car is faster on twisties, track, and straight line than a stock M5-M6...Well that is until the upcoming new models come out but even then it would only best the f8x in straight line.

Faster than a stock m5/m6? uh?

[pkimM3r]

doesnt sound that good but performance you cannot deny.

[M6-Coupe]

Originally Posted by bimmerj

I think you are correct. Damn these laws.

LOL!

[Karmic Man]

What's so hard about launching the car with DCT and mashing the accelerator afterwards?

If it takes the skill of an F1 driver to get to 11s than it is not really a 11s car for most owners. Who knows about the road conditions? May be it's actually a downward slope with strong winds behind the car.

I may get the M4 eventually but let's be realistic about the straight line performance of a 430hp,1500kg+/- car. It's no M5/M6 and may even be slower than the current C63AMG E507. Yes, you can brag that it has more than 430hp with 20hp-30hp hidden somewhere but somehow I don't think so.

[swamp2]

Thanks OP. Nice to seem some real data. We all really appreciate these "pre-magazine" instrumented results (even if only Vbox).

For the benefit of those of us Americans obsessed with 0-60, the posts title should note NO ROLLOUT. This is a sub 4 second run to 100 km/hr and thus also to 60 mph with roll out. More on that later.

Looks like I pretty well NAILED most major metrics way back in late 2010. Have a look here. There sure wasn't much known about the car that long ago, we even thought it might be called an F32 M3... From that post:

Originally Posted by swamp2

At a glance - F32 M3 Performance Predictions:

• 0-60 mph: 3.7 - 3.9 s
• 0-100 mph: 8.6 - 8.8 s
• 0-200 kph: 13.2 - 13.6 s (for our metric friends!)
• 1/4 mi time: 11.9 - 12.1 s
• 1/4 mi trap: 116 - 119 mph

The car is also performing just as I have simulated assuming 455 hp and 430 ft lb of torque and with all unknowns from the above work removed, primarily weight, drag and gearing (and yes assuming some slightly better numbers for some contests will be achieved with some highly skilled drivers). Yes, there can be little doubt that the car is underrated. Although we can't definitively say 455 hp yet. I think especially given the 400m time, the car is at least 450 hp, 450-460 is completely consistent with these results.

1 foot roll outs do make a significant difference, about 0.3 s for the 1/4 mi and about the same 0-60. A roll out is just that the timer does not even start until the car moves 1 foot. Here are the simulation results showing with roll out and no roll out. US drag racing and most if not all magazines use the 1 foot roll out. 1/4 mile vs. 400m does matter as well. See below:

By the way the methodology behind the tables below is a physics based vehicle simulation program. It certainly isn't perfect but with good inputs and careful customization is can be highly accurate. There is a bit more on the inputs and methodology in the first link above.



Comments:

• The car is eventually going to get some 0-60 runs between 3.6-3.9 sec. My simulations are a bit optimistic with the off the line traction model (3.5 s)
• The car is clearly going to break a 12 sec 1/4 mi time, especially under the US standard allowing the 1 foot roll out.

And for our metric friends...

[Powaup]

Originally Posted by uae247

One more video of the exhaust from outside
It pops
crackles
and spools

F'n great this video really convinces me that the car sound awesome with stock exhaust

[uae247]

Originally Posted by swamp2

Thanks OP. Nice to seem some real data.

Looks like I pretty well NAILED most major stats way back in late 2010. Have a look here. There sure wasn't much known about the car that long ago, we even thought it might be called an F32 M3... From that post:

The car is also performing just as I have simulated assuming 455 hp and 430 ft lb of torque and with all unknowns from the above work removed, primarily weight, drag and gearing. Yes, there can be little doubt that the car is underrated.

1 foot roll outs do make a significant differences, about 0.3 s for the 1/4 mi and about the same 0-60. Here are the simulation results showing roll out and no roll out. 1/4 mile vs. 400m does matter as well. See below



Comments:

• [SIZE="3"]The car is eventually going to get some 0-60 runs between 3.6-3.9. My simulations are a bit optimistic with the off the line traction model (3.5 s)[/size
• The car is clearly going to break a 12 sec 1/4 mi time, especially under the US standard allowing the 1 foot roll out.

And for our metric friends...

We need to tell us now about the stocks :-)

But you were on target

The car feels like it can do more with
A better launch
Better rpm-I can adjust the launch rpm using the cruise control stalk

11 seconds is possible.
I will try with the 1 foot roll out tonight
Lets see