Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: madmv6 on 22 November 2009, 14:32:18
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i am thinking about building a custom inlet manifold for my 3.0 mv6 but i need to find out if it is possible to put the mass air flow sensor behind the throttle body or can it be removed from the system, can anyone help.
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Hello mister,
Putting the MAF behind the throttle body would give you poor readings because of oscillations in the air. It would also be disturbed by ICV and the dual ram system. I don't think it's a good idea, but maybe someone else have more info on this?
You may probably move it, but keep the length from the throttle body (including the ram system and all) and keep the diameter of the tubing. If the ECU used a MAP-sensor instead, it would probably be another idea.
This was just my two cents of thinking though..
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I think the key reason for having it on the atmospheric side of the butterflies is that the pressure is known (ie approximately 1 bar). On the inlet manifold side the pressure is constantly changing and therefore it is much more difficult to calculate the mass of air that is flowing.
If you want to dispense with the MAF sensor then you probably need to be thinking about fitting a programmable ECU. Great project but quite involved.
Ask Kevin Wood about Megasquirt if you want the enthusiasts solution or Dave Walker at emerald cams http://www.emeraldm3d.com/ if you want to buy things ready to bolt on.
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if your realy up for it put a set of carbs on.
my mate took the injectors and maf off his 2.0 red top calibra and put the engine in a nova its easier to set up carbs and goes like hell :y.
sadly that was 6 years ago god he misses that car :'(
the best ones to ask are ABS(autobahnstormers)
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I disagree. Carbs are much more trouble to set up than a mappable ECU these days, will probably cost you more and you won't pass an emissions test with them on an Omega.
What are you looking to achieve? IMHO, there's not much to gain from the induction system on the V6 so unless the engine has already had tuning work done, it will be a lot of work for little gain. In fact, the engine needs the long intake tract afforded by the multiram system to extend the torque down to low RPM, so you will lose that flexibility straight away.
Kevin