BMW M5 V10 dyno'ed at 530.9hp
 

True or false. Let's wait and see if more M5 show the same result. But you never know.

http://www.m5board.com/vbulletin/showthread.php?t=56800

mmm....... why would they want to under-rate themselves in the HUGE power wars going on?

don't see any pics of the dyno screen, guess we are just going to have to take his word on it :roll: :wink:

I also asked for a paper, lets wait and see.

But since someone told this info at M5board.com a few months ago and now someone else confirm it so its not impossible its true.

I also heard that BMW are saying 507 cause of ECU (or whatever its called) rules and to keep the car in reasonable price. More horsepowers would be forcing the car to have a higher price and more expensive insurance. Also 507 is kind of a holy number, some kind of celebrate to the old BMW 507.

But we have seen how capable M5 is up to 200km/h, fast as CL65 and almost fast as Gallardo, 911X50 and Viper. How can a car be as fast as cars that has lower weight than M5 or more powerful cars. Its a little bit suspicious if you ask me.

You never know what carcompaines are up to. Let's wait and see if more M5´s show the same.

Look at this link, this was posted more than a month ago. Here they also mention 525-530hp and now we see someone else mention it. Two different sources claiming 530hp
http://www.m5board.com/vbulletin/showthread.php?t=55355

I can't wait to see some guy with serious money modifing it and getting 700 HP out of it.. That would be great.. The only thing that I really don't like about the M5 V10 engine is the sound. It's really really sounds like a diseal .. but other than that it's a great car.


And I really do belive that BMW underrated the M5 for insurance purpes and maybe they like the element of surprice.. :lol:

You mean at idle?? I cant hear the diesel when Im reeving the engine.

^^ you have an m5?

but I agree in the higher revs it has an amazing sound, just watch list past top gear :D

LOL, no I dont have one, sorry if it sounded like it. Im a Moderator over at M5board.com so I heard how the car sounds. Dont tell anyone ;) but I might drive a M6 later this year, still waiting for an answer though.

Where's the dyno chart picture to prove seriously his assertion ?

The E60 M5 is so fragile, I hope for his mechanics that it doesn't have these additional 25hp. :wink:

Well shit, that's pretty cool! 8)

I think it is becoming a lot more common these days for car manufactures to under-rate the power ratings of their cars (usually just horsepower). It has several benefits...lower insurance for the owners, less attention from safety-nazis, and maybe most importantly...BMW can show off that their car as just that incredible that it can keep up with cars with better power to weigh ratios.

The third is speculation, but we've seen it for sure with the SRT-4 and Ford GT, and I'm guessing quite a few cars these days are underrated...

Also, this is a flywheel number correct? I'd like to see what it actually put down at the wheels. Hopefully we will see some proof of these numbers, because judging from the M5's performance they seem very likely.

^^according to the pictures it was a chassis dyno, so this should be the wheel hp. However this number should be taken very lightly, first no pictures of the actual dyno chart and second dyno's are notorious for giving skewed results. The same car under the same conditions can produce very different numbers depending on the dyno itself. I'd like to say this number is totally accurate but currently I'm taking it with a grain of salt.

Remember dyno's are only a general indicator not exact devices.

Quite a few of the manufacturers have been underrating for years. Hell gm underrated an obsorbenent number of cars to protect the corvettes image.

I dont know if I believe how over this one is, but my guess is bmw would give extra leeway to avoid embarassment. Im sure some people remember the embarassment mazda suffered when the rx8 ended up below hp numbers. They ended up giving free service type stuff to buyers.

yeah
m5 sounds like crap at idle
but then
rev goes up.. the holy sounds comes in... just beautifullllllllll

I remember that first speculation set the M5 at 550bhp. Then BMW says just before it's release that it is set at 507bhp. So yeah, i could see it's power being slightly more.

@Just Me- The 507 was really the predecessor to the 7 series. In it's time it was the highest end car BMW was producing and really brought the attention that BMW was looking for for it's cars. They had made a name for themselves with their motorcycles and aircraft engines (which they were barred from producing after WW2)

The 7 series would later go on to save BMW from financial ruin and become their flagship car.

If you can find one, get it :wink:


@ Schwalbe- :bad-words: S motor?? Fragile???? HHHHHHHAAAAAAAAAAAA!!!!! I'll bet it outlasts all the AMG motors :wink: It'll handle 700hp easy :twisted:

As for Chassis Dynos being inaccurate; yes. You really have to do 3 or 4 runs and then average them out.

Each result is going to be different just given the way a piston ring shifts and seals or how much of the fuel mixture ignites (no engine is 100% effeicient and probably won't be for another 15-30 years at least). Even the clutch is going to effect the result depending on it's slip level. Granted readings are much more consistent than they were 10-20 years ago, especially since fuel injection has been introduced, but still, dynos are far from consistant.

I would love to believe that the M5 is shooting out 530hp, however it's going to take 7 or 8 different vids on different dynos to make a believer out of me.

There are now a dynosheet showing 530 HP (PS) More dyno sheets will follow.

Was more like the predecessor to the Z8.


Once again I think those test results should be taken lightly.. Indeed a very fast car but just maybe slightly biased in BM:s favor.. I have never read any test where the M5 is as fast as the CL65 from 0-200km/h

[quote="Ghostbat"]Im a Moderator at M5board.com. I assure you its true. It did happen, the owners where there with their cars, We didnt pay them to be slower than the M5. Watch the video and see for yourself.

PS
Sportauto got the same time as CL65 up to 200km/h with the new M5.

I dont think we can proove it better so belive what you want. I dont really care what others think.

im impressed, so this engine got more to say,
BTW 530 is way too much for car, what will be next
99 M5 400 hp, 6 years after 500 hp, and next 6 years ?
its too much, better to set down weight

530rwhp?

Where is the dyno sheet?

530 calculated crank hp - maybe. But 530rwhp is about 620 odd crank HP. underrating your engine by 130hp is stupid.

If this is the case (but I really doubt it) then all this means is that the M5 is a slow heavy pig - until you shove a 620hp engine in it. LAst I heard a brick wall would go fast with a powerful enough engine.

:)

All the stories and bragging about how the 500hp E650 M5 runs with Ferraris etc etc etc. It would seem then that at 620hp, if it didn't run with Ferraris is would be crap.

Anyone have the dyno sheet of this stock 530 rear wheel HP E60 M5?

Pics or STFU ;)

Oh - and lets be clear - is the BHP or PS? Because comparing the directly is as asinine and stupid as comparing 100 Farhenheit vs 100 Centigrade.

This is the latest post from the M5 owner

OK guys,

I aint no technician - and honestly I have no clue what you're talking about.
But I can at least share some info they gave me that day.

First of all, yes, they had a fan in front of the car, even though they admitted that this fan could be a bit bigger.
Secon, we had like 90° F which (I was told) is not a good temp to measure the real potential.
Third, with only 7k KM on the reader (I again wwas told) that e.g. the torque (NM Newton Meter) will go up as soon as the engine is a bit more mature, s.th. like 15k KM
Finally, unfortunately there was no other E60 around to compare. The owner of the shop told me that they had one 4 weeks before - the result was around 520 hp. Could be that BMW figured that it's not that well received that most of the E39 haven't reached the base power as stated in any fact sheet. The proof to this during that day: we had about 10 E39 M5's on this bench, none (!!!) of them reached 400 hp - if I recall it right, there was one with 397, the rest was well below 390, some even below 380
Having said this - all with the same bench, the same Software used and of course the same conditions.

I really didn't care that much. Nevertheless, it's just the car with a good performance. It's not me
From a personal "feeling" point of view: I was surprised. Having driven the E39 M5 before, I really don't feel that big of a difference (except running it on our Autobahn - THAT is a difference!!)

Back to topic: they guys who did organize this event 2 weeks ago were sure about those results. They promised that all data is accurate and they were also certain that this was one of the strongest engines they've ever had on this dyno...

Cheers to all
Rainer


PS, RC45 there is a dyno sheet showing 530,7hp (Ps), more dynosheets will follow. See the link I posted to M%board.com.

PS or HP -- those are 2 different units.

Rear wheel power or calculated crank power from measured wheel power?

On the surface, because there is NO reason why a manufacturer would under-rate their engines by 100 BHP - I am calling complete BS on the rumour that a bone stock E60 M5 can pull 530 REAR WHEEL BRAKE HORSPOWER SAE.

This would mean that the E60 M5 is shipping with a 620hp engine,- at the crank - that would about 430 REAR WHEEL BRAKE HORSEPOWER.

Somehow I doubt very much BMW would ship the M5 with a 630hp engine - and claim it was only 507hp.

Again - what UNIT is being used to measure this rear wheel power?

Let's put it in correct context.

So which is it?

530hp(SAE) or 530bhp or 530PS - and at the hweels? Or calcualted back to the crank?

It was done in germany and the dynosheet shows PS. So answer to your question is PS ;)

530PS = 522hp

At the rear wheels? Or calculated back to the crank?

BEcause if at the rear wheels then the world is to somehow believe that BMW is shipping the M5 with a 630 crank horse power engine, instead of a 507 crank horsepower engine?

Bullshit.

If they had an extra 120hp just laying there, they would be announcing it off the rooftops.

It would seem that this 530PS/522hp is really calculated back to the crank - which means that 507hp vs 522hp is not that big of a deal and within normal variances.

Nothing to see here - just more fake BMW press.

:roll:

BMW never actually rated the E39 M5 at 400 even. Everyone always rounded it up to 400. Even in the M5 training manual it lists the S62 at 397 HP.


No two cars are exactly the same. Nor will they dyno the same. you could take 10 Z06's (bear with me RC, i'm not attacking you/your car, just making a point) and stick them on the same dyno and they will all throw out different numbers. I'm sure only a few will get near the factory rating but most of them, depending on mileage, will probably be about 20HP low.


Not real press though. This is coming from a bunch of morons who don't know how to read a dyno sheet.

What are you talking about??? The 507 predated everything by at least 40 years. How the hell could it have been the Z8's predecessor?

LOL - I am not that sensitive -.. :P But you 100% correct - there have at times been 20 Z's being dyno's at the same event - and all the stock cars would range from 330rwhp tp 345rwhp for the 385bhp cars, and 350rwhp to 365rwhp for the 405bhp ones.

It just depends - besides, anything above 330rwhp for the 385bhp Z06's is good - using the accepted 15% drive train loss.

Would the E60 M5 suffer the same 15% loss - or different? Is is a auto-clutch manual or an auto tranny?

:) ;) Hey I tried to work "but it's ugly" into the thread - but came up short - so this is the best slam on Beemer I have today :lol:

As always there are belivers and non belivers but it doenst matter. Let the acceleration numbers we seen so far speak for it self. 507hp or not, the car is damn fast.

What's to believe - 522hp (crank) is so close to 507hp (crank) - this guys car is just a strong E60 M5. It's not like BMW under rated the engine or anything ;)

No, the M5 is a regular standard transmisison. No torque converter crap here :P :D

"Today, the 507 is one of BMW's most sought after collectors cars, as well as the design inspiration for the Z8."

http://jlcouet.club.fr/Bmw507B.jpg

Im not saying this 530hp story is true. All I say we seen how the M5 perform and and the car has been damn fast. So 530hp or not doesnt really matter.

Design inspiration means just that inspiration for the desing. Predecessor would mean, the model before this one, ;)

It's a very good but boring car to much things you don't need and ugly like hell and same for the wheels.
And i like the older m5 more than the new one and i thinks this will be very bad car for tuning.
The old v8 engine of the e39 m5 sounded much better than the new v10 engine of the m5.
:D :o

To each his own. Taste is so personal and I prefer this over the old one ;)

I think the E39 M5 rims are the best with the M3 CSL rims coming a close second. From the pics, i really think the E60 M5 has some rather dull rims, but things usually seem different in the metal, so i'll hold off my final opinion until i see one :wink:

I have seen the new M5 in metal, awesome car and yes the rims on CLS is no1 but the rims on the new M5 are great too.

where can I hear the motor sound (without have to buy one)? I´ve seen and read a lot about the car, but I haven't hear it. Please.

your answer don't help me so much, but make me laugh a lot.

Haven't you seen the TG episode with the M5? I don't know what diesels you have driven, but the pitch of that engine is nothing alike...

I think Brembo means what the BMW E60 M5 sounds like on tick-over just after a cold start. Watch the 5th Gear test And you'll hear it too..

Try a thumbnail next time.. :fist:

Teach me how :wink: and I will gladly post thumbnails.

it's a picture from "m5forum"

that has to be calculated back to the crank like RC said.

530/.85 = 625..........Mclaren F1 territory, I am sure BMW will not be stupid enough to under-rate it so much.

Nonetheless, 530 is a healthy number anyways, so let's wait for other M5 owners to dyno their cars for a more accurate picture.

More cars has been dynod at the same place where this 530hp car was meassured. One showed 520hp and a third one showed 510hp

^ Wow, such a big disaparity.

At the wheels?

Or is this dyno calibrated to do the math of "calculate back to crank" and spits out this CRANK HP value?

It's ok.

All the stupid people on the Net will be suckered into believing this carp - and befor eong BMW fan-boys everywhere will be posting everywhere that the E60 M5 is producing 640bhp.

:lol: ;)

DINCor = DIN Correction = 1.039
Getrie = ??? The Correction Factor for this is 1.1 @ 2028rpm
P-Verl = Power Dissipation (Verlustleistung)
P-Rad = Power at Wheel (Leistung am Rad)

It is 99% sure that the 390.2KW is @ crank..........

No - it 1000000000000% sure.

Plain and simple.

Stock BMW E60 M5's do NOT produce 530hp at the rear wheels.. ;)