E30 Zone

Hi guys, is anyone here running a M50TU or M52, with a megasquirt and is using the intake vanos?

AFAIK this engines use the VANOS as an on-off, not a variable position as in later engines.
Ive been told i could use the nitrous output to control de VANOS, so if you did it this way, i would love to hear your experience and any usefull input.

I will be using the M52 without the cam position sensor, just the crank position. for ignition since i wont have the cam position sensor, i will be going for a wasted spark setup using the original COPs, with 6 BIP373.

I would like to keep the VANOS if possible, as a last resource i know i can delete it.

So any advice is appreciated, cheers.

EDIT:
I missed to mention that im running a MS1v3.0 with extra code. I have a 4 outputs used for boost controller, sequential shift lights and the nitrous out for the VANOS.
With the original setup i believe, VANOS is triggered on at 2500rpm and then off again at 5500rpm. Can someone confirm this?

I am controlling vanos using a gotech ecu, as you say it either on or off so your nitrous out put would be fine.

The vanos does advance the cam at around 2500-3000rpm, im not sure exactly where though, simple 2 wire solenoid to switch the oil pressure on or off, shouldnt be much work at all to get it going

it would be good to test a car with a standard ecu to find out exactly when the vanos advances the cam, on my ecu I set it to come on at 1500 rpm then off again at 3000, seems to work well.

this will be a boosted car, so i guess when to turn it on or off will be part of the tuning process.

but knowing at which rpms the original setting works is a good start point.

regards.

The live data given through Carsoft on my laptop tells me when the cam is on or off but ive not tested it that much before, will have a play next time I get it plugged in which should be before the weekend

Coyote_ar wrote:this will be a boosted car, so i guess when to turn it on or off will be part of the tuning process.

but knowing at which rpms the original setting works is a good start point.

regards.

My car has boost also, my understanding of single vanos is the cam is only advanced below 3000 rpm to help with emissions.

appreciate it dan.

baptie, dont you notice an increase in low end torque (and in consecuence a reduced spool up time)??

my understanding was that by reducing overlap it helped with low end torque too.

regards

I cant say, as I have always had it set that way, but it must be beneficial.