Performance stats BMW 850?
Discussion
dme123 said:
MarshPhantom said:
But I've also seen tests online saying the 850 is around 7.5s. My Mercedes will do 60 in 2nd.
And it will do 150 in 4th.
Possibly because it's a 4 speed gearbox.
Look at him showing off with his fancy FOUR speed gearbox And it will do 150 in 4th.
Possibly because it's a 4 speed gearbox.
Edited by MarshPhantom on Friday 20th January 22:22
I think that the BMW V12 engine is a bit like the 3.5 litre V8. Barely more powerful than engine below it in the range, i.e the 4.4 litre V8 (3 litre 6 for the 3.5) while offering worse mpg and higher maintenance costs. BMW should have made the V12 more powerful to put some clear air between it and the V8.
The V12 was built purely to beat Mercedes to it - they built the E38 740d to beat MB to the first V8 turbo diesel (two M47's spliced together).
The M70 V12 was designed in parallel with the M40 4 cyl and shares a lot of bits - valves, rockers, condos, plus it's made on the same tooling - a V12 on the cheap.
The M60 V8 was an altogether more serious effort.
The M70 V12 was designed in parallel with the M40 4 cyl and shares a lot of bits - valves, rockers, condos, plus it's made on the same tooling - a V12 on the cheap.
The M60 V8 was an altogether more serious effort.
hondansx said:
I agree, that looks pretty horrid, but you can do that to pretty much any car.
A sportier one with the bigger wheels still looks really cool in my eyes.
My issue is that a 'classic' or weekend car would have to be a real driver's car. This clearly isn't one, but a manual V12 with straight pipes might make you think twice i imagine.
To be a geek, the 8 Series engine was not the 'base' for the Mclaren F1 engine despite sharing the S70 name. The McLaren's engine was more closely related to (two of) the M3 S50 engine.
Mine was a very dark purply blue (Madeira violet?) with the optional CSi throwing star wheels and sport suspension, but wasn't a sport model. It did look a lot better than most! It was a nice car - fantastic on long European trips where it would just sit at 100 and squeeze up to 130 to get past a gaggle of slower cars. What it was built for. The brakes that were abysmal around town could really haul it down from speed. It was a 1997 840Ci, 4.4 M62.A sportier one with the bigger wheels still looks really cool in my eyes.
My issue is that a 'classic' or weekend car would have to be a real driver's car. This clearly isn't one, but a manual V12 with straight pipes might make you think twice i imagine.
To be a geek, the 8 Series engine was not the 'base' for the Mclaren F1 engine despite sharing the S70 name. The McLaren's engine was more closely related to (two of) the M3 S50 engine.
I say I don't miss it, but............
iSore said:
The V12 was built purely to beat Mercedes to it - they built the E38 740d to beat MB to the first V8 turbo diesel (two M47's spliced together).
The M70 V12 was designed in parallel with the M40 4 cyl and shares a lot of bits - valves, rockers, condos, plus it's made on the same tooling - a V12 on the cheap.
The M60 V8 was an altogether more serious effort.
That's rather interesting. I always found the BMW V12 to be a bit of a disappointment, it really didn't compare well to the ancient Jaguar V12. The M70 V12 was designed in parallel with the M40 4 cyl and shares a lot of bits - valves, rockers, condos, plus it's made on the same tooling - a V12 on the cheap.
The M60 V8 was an altogether more serious effort.
helix402 said:
I think the V12 is in simple form two M30s stuck together.
I remember reading in a contemporary comparison of the BMW 750i and SIII XJ12 that the reviewer thought the BMW V12 was not the equal of the Jaguar engine. There were comments about a spindly crankshaft and some other things, I'll see if I can dig it out. The use of a separate ECU for each bank is quite telling, does anyone know if the BMW engine had sequential injection from launch? Other than the XJR-S with the fancy Zytek ECU the Jaguar used batch injection right up to the end.A testament to the genius of Harry Mundy and Walter Hassan that the engine was still competitive at that point, even if the cars it was installed in were a bit touch and go! The Mercedes V12 was a rather more impressive effort though.
Edited by dme123 on Sunday 22 January 10:05
That Alpina 
Late 850's came with the 5,4 M73 and thats a better engine, not that more powerful tho [26hp], but turbine smooth, reliable and will get you wherever it is that you are going in a hurry if needed.
Got my '00 750 up to almost 4500 rpm in 5th going downhill I admit. 250 kmh/155 mph is at 4250 rpm, so they can haul ass as long as you have a road long enough
Late 850's came with the 5,4 M73 and thats a better engine, not that more powerful tho [26hp], but turbine smooth, reliable and will get you wherever it is that you are going in a hurry if needed.
Got my '00 750 up to almost 4500 rpm in 5th going downhill I admit. 250 kmh/155 mph is at 4250 rpm, so they can haul ass as long as you have a road long enough
helix402 said:
I think the V12 is in simple form two M30s stuck together.
100% definitely not - the M30 was a big old lump from the 1960's, adjustable tappets etc. It also thought that the M70 was two M20 325i engines - BMW did try this but wanted hydraulic tappets and lighter weight components hence the M40 tie-up.Oddly, despite using the same valve gear, the M70 very rarely suffered the camshaft/rocker wear that blighted the M40.
I forgot about the camshaft design! Here's some info:
http://www.meeknet.co.uk/E38/Pdf/M70traininginfo.p...
http://www.meeknet.co.uk/E38/Pdf/M73TechBrief.pdf
http://www.e32-schrauber.de/bmw/daten/servicehandb...
http://www.meeknet.co.uk/E38/Pdf/M70traininginfo.p...
http://www.meeknet.co.uk/E38/Pdf/M73TechBrief.pdf
http://www.e32-schrauber.de/bmw/daten/servicehandb...
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