M5 5.5L V10 Twin Turbo?

[digger]

bigger diameter wheels slows the acceleration

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Hallo scottiedavies,

 

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[djfux69]

345 is huge!! thats 12 inches of rubber. wow i wonder what fuel consumption will be like with tires like that. i think they should run a 225 front definetly, i hope they dont go wide all the way around, handling will be very strange, but i cant beleive 345, that was the countach tire size in the rear!! i cant wait till they come out. anyway let me know if you find anything else out.

[bleh]

bigger diameter wheels slows the acceleration

not if your having problems with traction.

it also depends on the transmission that its geared with. the guys at bmw are not idiots. acceleration will not be problem . this car will be insane.

[thepolarfoxqx]

225 in the front? handling will be inferior. 255 is more realistic for the front, maybe larger - up to 275. 345 is reasonable for a rear wheel drive car with 550hp. Possibilities are there for them to be slightly smaller, but the number i keep seeing is 345. That is the same size rim used on the X5 4.6is. They'll get more aggressive with the rear axle to offset size.

[thepolarfoxqx]

Motor trend, about the most reliable name in automotive journalism let out their first E60 review, and their preview of the E60 M5.

The official models

525i - 184hp I6

530i - 225hp I6

545i - 325hp V8

M5 - 500hp V10

They said the ride of the 530i was very firm, the steering was artificially quick, the car reacted too violently to steering inputs, and had to be gotten used to to be comfortably driven (a first for a BMW). The interior is pretty good, the driveline is nearly a carry-over.

The M5 - will not have pnuematic valves

it will although have 10 throttle bodies (no valvetronic), the latest variable valve timing, direct injection, and no less than 500hp.

They said final engine tuning is not final, as of now it is 500, but could reach as high as 550 by production.

Redline is set at 9,000rpms

curb weight is 3,700lbs.

0-60 is a viper tieing 3.9 secconds as of now.

[digger]

i read in a european mag (can't remember the name) that BMW are thinking of increasing displacement of the V10 to 5.8L to give about 550hp. alot of speculation i know ,but i think we'll have to wait to get the final specs. When is the official release date anyway?

[mv]

i doubt whether m5 will hit 100kph in 3.9s...it will more likeky hit it in 4,5s imo...m6 may be able do it under 4s...but that's just a speculation

[Kevin321]

i am sure that the m5

will do 0-60 in under 4s. i herd that the

m6 will have more than 600hp is this

true

[thepolarfoxqx]

guys, these aren't my numbers, the appeared in this month's motor trend.

there is an entire article about E60 M5. They say that 3.9 is the current number, typically they aren't wrong, and give the conservative number. They said 760Li would have at least 420hp, as high as 440. It debuted with 440. They say M5 will have atleast 500 - up to 550. They say as of now, with 500hp, it will run in 3.9.

On paper, it does work.

It has 19" rear rims - wide ones!

[mv]

just a note:you might be talking about 0-60 mph accel...i'm talking about 0-100kph accel...see the difference in those 4kmh?

i'm sure that case of 0-100 in 3.9 is not gonna happen.

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Hallo scottiedavies,

 

schau doch mal hier zum Thema Zubehör für BMW M (Anzeige)? Eventuell gibt es dort etwas Passendes.

[GIR]

And the difference between 0-62mph and 0-100kph is what exactly?

[digger]

not much 62mph = 99.758km/h

but 60mph = 96.54km/h

the latter usually adds about 0.3 - 0.5sec to get from 60mph to 100kph

[thepolarfoxqx]

100km/hr is 62mph. I am pretty confident, that if it maintains average acceleration through 2nd gear over this 2mph span, then it will take it less than .1 seconds to get from 60 to 62mph.

[GIR]

Most manufacturers list the same time for 0-100kph and 0-60mph. The little extra doesn't matter that much.

[mv]

i wouldn't say...bmw m5 hit 100kmh in 5.3 s...and guess how long it took to hit 60mph...someone here said 4.8s.

[thepolarfoxqx]

.5 secconds to get 2mph faster? unless there is a 2-3 shift there, I don't think it takes that long. Have you driven an M5? I promise it doesn't take it that long in 2nd gear to get 2mph faster.

You realize, that if it accelerated 4mph/seccond on average (2/.5), it would take it 7.5 seconds to get from 30-60.

There has to be something fishy - like a 2-3 shift there for it to make that much of a difference.

[Dresol]

I just have to say that the new M5 will not get any turbos. The M-people at BMW will not use any turbos. They want the engine to work on its own without any help from turbo or a kompressor. The M5 engine should get 500 bhp said the workers at the BMW-factory in Munich. But there will be a engine for the 5-series with twin-turbos and 380bhp though.

[GIR]

I don't get it. Even though they have a 500bhp engine they're still going to have a 380 bhp twin turbo engine. Doesn't make sense to me. WHy would they ever do a thing like that.

[thepolarfoxqx]

i am pretty sure the twin turbo 380hp engine got scrapped.

too close in output to the 545, as well as high development costs.

[digger]

The time difference for 60 - 62mph obviously depends on the the cars

0-60 time, unfortunately not all of us can drive an m5 so for more common cars a 0 - 60 time of 8 sec would probably equate to 0 - 62 in 8.5 sec ,as for my current car (no gear change either). However for an m5 with a 0 - 60 time of about 4.8 sec a 0 - 62 time of 5 sec is a reasonable guess. you'll be suprised how quick 0.2 or so seconds goes by.

[thepolarfoxqx]

i know, i am going sherely mathematically here.

I think you underestimate exactly how quickly a car that does 0-60 in 4.8 accelerates

like - your head and the headrest are one until you back off the gas.

[digger]

one last comment:

bmw m5 tested dec2002 Motor magazine (Australia)

0 - 90 km/h 4.52sec

0-100 km/h 5.24sec

giving

90 - 100 0.72sec

so the last 3.5km/h (2 mph from 60-62mph) should take 35% of this time which is 0.25 sec.

can't argue with numbers!!

[thepolarfoxqx]

fair enough.

that still doesn't get you to 5.3 in the 0-100kph

4.8+.25+ 5.05 (you also should consult the car's torque band in thsi matter. it may be reaching in or out of it in this particular area of acceleration.

[Dresol]

The only reason why the BMW M5 use about 0,3 sec. more from 60 to 62 is because BMW has limited the 2nd-gear to 60,5mph, it takes a while to get the 3rd-gear in.... But the M5 accelerates faster then the Audi RS6 in 0-125 mph. The M5 reaches 125mph after 17,1 sec, while the RS6 reaches 125mph in 18,9 sec. That's not bad 8)

[thepolarfoxqx]

that isnt' bad at all, especially seeing as RS6 has 56 more horsepower.