Adjusting cams on the M5 E39, anyone? - Page 2

TriflowM5+M3 · 1st April 2003, 20:02

Qvarnis

any chance of a sound clip on that exhaust? just wondering what it would sound like

thanks for the info on the hood...i like the triangular vents

i really need to learn sweedish!

Qvarnis · 1st April 2003, 20:19

Quote:

Originally posted by TriflowM5
Qvarnis

any chance of a sound clip on that exhaust? just wondering what it would sound like

thanks for the info on the hood...i like the triangular vents

i really need to learn sweedish!

Webmaster are going to put up a soundfile on our homepage. Not sure when. Will try to remember to put it up here. Sounds veryveryvery good!!!

That is, if you like NASCAR!

Are the vents in the front for your discs or filters? Were did you get that? If for the filters, how much did it increase hp?

Regards/ Jocke Qvarnström

BostonRocket · 1st April 2003, 23:41

Kelleners offers two powerkits using camshafts, cats, headers, exhaust, intakes and ecu timing to gain as much as 65hp.

'Rocket

RussiaM5 · 29th October 2004, 20:13

Hey i have an 2000 Bmw m5 and i had the shrick cams put in it ! Its awesome but a month later my motor blew ! i admit i drive the M really hard but my vanos system is fucked now ! i guess the screws on the vanos gears started to unscrew and then it hit the block after that the Cams mooved and the valves start hittin the pistens sooo ya , i duno about thouse cams !

shadowman · 31st October 2004, 01:26

Quote:

Originally Posted by RussiaM5

Hey i have an 2000 Bmw m5 and i had the shrick cams put in it ! Its awesome but a month later my motor blew ! i admit i drive the M really hard but my vanos system is fucked now ! i guess the screws on the vanos gears started to unscrew and then it hit the block after that the Cams mooved and the valves start hittin the pistens sooo ya , i duno about thouse cams !

So sorry...but it does not sound like it was a cam problem.......installation???

Good luck.

Shadowman

mottati · 1st November 2004, 01:48

Quote:

Originally Posted by Aussie2U

Speaking of cams, isn't the new BMW V10 supposed to have a camshaft-free engine? I remember seeing a design that uses solenoids to electronically fire the valves at any point, and for any duration. When that arrives, the games all over - just plug in the laptop and adjust away. Talk about "sport" mode!

You're talking about bmw's 'valvetronic' design, which is on the 4.4l v8's, and some 4's and 6's too, i believe. The m5's v10 will have cams, from what i've read, the valvetronic doesn't work fast enough to give the throttle response we expect from an Mcar.
Mike

phoenix2005 · 2nd November 2004, 07:04

Quote:

Originally Posted by RussiaM5

Hey i have an 2000 Bmw m5 and i had the shrick cams put in it ! Its awesome but a month later my motor blew ! i admit i drive the M really hard but my vanos system is fucked now ! i guess the screws on the vanos gears started to unscrew and then it hit the block after that the Cams mooved and the valves start hittin the pistens sooo ya , i duno about thouse cams !

Hi Russia

It does not sound like a cam problem or an installation problem. A bad install would have been obvious when you first run the engine. The PWM range of the cams will not cause the cams to crash into the pistons, fail safe margins are engineeres into the vanos mechanism. Even if the cams are installed out of range ( base setting) the CEL would have triggered very quickly! This is most often caused by an over-rev. Is also more likely with higher lift exhaust cam profiles.

Osh aka Phoneix2005.

phoenix2005 · 2nd November 2004, 07:21

Quote:

Originally Posted by Qvarnis

There are discussions between a Swedish tuningfirm Autokinito in Uppsala and ourselfes of adjusting the cams for maximum performance. We are currently on their dyno with new exhaust and tommorow testing the new mapping done by firma JWR in Sweden.

To gain maximun performance you can adjust cams for max performance and not tourgue in lower revs. We only have paper on what it does on non vanos BMW engines (ex BMW 850 ca 35 hp).

Have anyone heard of anyone, tuning company etc and who knows if it's worth the effort and exact hp gain?

Jocke Qvarnström
http://www.itsfun.nu

Many of the members stated that the s62 cams adjust automatically This is true. Any small mechanical changes will be corrected by the DME as it is programmed to do so (PWM). The m70/s72 V12 was very simple to modify as the cams where adjustable and or re-ground to move the centerline for added scavanging. The only way you can make a global change to the timing on the S62 is by re-engineereing the starwheels. Hasn't been done by anyone else to my knowledge. The other way to change the cam timing is to modify the logic of the camshaft lookup tables. This is very difficult to do on this engine without a laboratory setting that can indicate camshfat activity in real time. This not for the lighthearted. Make shure your tuner is capable of doing such recalibrations.

Note: Any changes made to the vanos tables should be done in consideration to the airflow demands of the engine mods. Doing this to a stock motor is most likely futile!

Hope that helps.

Osh

ray540inyc · 2nd November 2004, 07:49

as in osh from rms?

Quote:

Originally Posted by phoenix2005

Many of the members stated that the s62 cams adjust automatically This is true. Any small mechanical changes will be corrected by the DME as it is programmed to do so (PWM). The m70/s72 V12 was very simple to modify as the cams where adjustable and or re-ground to move the centerline for added scavanging. The only way you can make a global change to the timing on the S62 is by re-engineereing the starwheels. Hasn't been done by anyone else to my knowledge. The other way to change the cam timing is to modify the logic of the camshaft lookup tables. This is very difficult to do on this engine without a laboratory setting that can indicate camshfat activity in real time. This not for the lighthearted. Make shure your tuner is capable of doing such recalibrations.

Note: Any changes made to the vanos tables should be done in consideration to the airflow demands of the engine mods. Doing this to a stock motor is most likely futile!

Hope that helps.

Osh

Speedo · 2nd November 2004, 08:11

Quote:

Originally Posted by ray540inyc

as in osh from rms?

Yes

This is Osh.

And who might you be, sir?

Osh M.