M50TU/M52 + Megasquirt, Vanos question.

[Coyote_ar]

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?

[hoveringuy]

You're on the right track. MS will need to sink a few hundred milliamps of current, the solenoid doesn't draw much power.

VANOS activation (below 5200) is based on load. You could generalize and trigger at greater than 15% throttle position. I don't know what parameters MS lets you use for triggers. You might be able to use load directly.

Also avoid it when the engine is cold.

VANOS is worth keeping.

[Coyote_ar]

ive seen screenshots of the nitrous output being triggered by rpms, and manifold pressure. i THINK, i saw a setting based on throttle position.

would you recomend just an off-on setup, or a off-on-off setup as the original works (supposedly).

so regarding the activation of the solenoid, you advise i run it straight from the MS output? i was thinking maybe using a transistor there, but i dont know THAT much of electronics :P

thanks for your advice :)

EDIT: this will be a turbo engine, not a NA.

[hoveringuy]

I don't know the MS specs to know what load it can support. Is the output already run through a transistor on the board? I would use a MOSFET instead of a transistor.

Off-on-off is fine, mainly to keep the cam from advancing at really low rpms where you tend to have very low loads anyway.