PDA

View Full Version : Vanos??????


Euro_E30
10-06-2002, 06:12 PM
Could someone please tell me what is vanos. and when they started using it!

EMPOWERD
10-07-2002, 03:38 PM
The VANOS system is based on an adjustment mechanism that can modify the position of the intake camshaft versus the crankshaft. Double-VANOS adds an adjustment of the intake and outlet camshafts.... (variable cam timing). It was offered in the '93 and the double VANOS came in the Euro 3.2L M3 ('96+) and all M54 motors.

http://www.bmwworld.com/technology/vanos.jpg

http://www.geocities.com/gkurka2001/CarTech/vanos.jpg

Jon@Bimmersport
10-07-2002, 06:15 PM
german version of vtec...and more complicated! works better cuz its always running, as the vtec motors only use vtec from a certain rpm range..and only activated at a certain temperature, u wudnt wanna use a lot more aggressive camshaft profiles when the engine is cold!

EMPOWERD
10-07-2002, 11:42 PM
NO, NO, NO!!!*no-no*


It's not even close to VTEC. BMW's VANOS changes the cam timing (rotates the cam to advance or retard timing). Vtech used totally different cam lobes at a specific RPM (oil pressure changes it - not the ECU like BMW). The brand new 1.7L Honda motors in the new 2002 cars have VTEC-i. The "i" is similar to VANOS were it adjusts the cam timing.

Jon@Bimmersport
10-08-2002, 01:15 AM
Originally posted by empowerd
NO, NO, NO!!!*no-no*


It's not even close to VTEC. BMW's VANOS changes the cam timing (rotates the cam to advance or retard timing). Vtech used totally different cam lobes at a specific RPM (oil pressure changes it - not the ECU like BMW). The brand new 1.7L Honda motors in the new 2002 cars have VTEC-i. The "i" is similar to VANOS were it adjusts the cam timing.


i knew that....

hehe, no really..so is it like vanos is constantly working all the time?

bmwm5lover
12-29-2002, 11:38 PM
a very very simple explanation i got from a BMW sales guy is that VANOS increases Performance by about 10% while decresing consumption by about 10%.
But Randy is very right!

avaispatel
09-28-2007, 10:01 AM
I have a 94 325i, im trying to figure out if it has vanos, can anyone help? I know it was introduced in 93 but on 5 series is all it says everywhere i read, when did it appear on the 3 series or is there a way to check on my vin?

NateoriouS
09-28-2007, 01:32 PM
yes you have Vanos..!

but just to verify.. check your engine for this..!!

if you have this "hump" you have Vanos.. *th-up*