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sly |
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This discussion comes from a thread discussing boost on an EF. As my post below caught the eye of another AU owner, I've moved it here to avoid hijacking the other thread.
{USERNAME} wrote: the speed density eec does
not have the capacity to deal with positive pressure above only 2 lbs. It's strategy cannot unfortunately be changed. What you say is correct, up to a point. That point is the end of EL production. For the AU Ford changed from a digital separate MAP sensor to an analogue one integrated with the IAT. The MAP signal on AU's on is therefore a voltage nominally between 0 and +5V, though typically between +0.2V and +4.8V. What this means for AU and later models, is that the ECU can be made to "read boost" by the simple expedient of wiring in an aftermarket 2, 3, or 5-bar analogue MAP sensor in place of the pressure (vacuum) signal from the stock TMAP, and rescaling load-dependent variables to suit, using tuning tools such as Advantage or Sniper. I realise most of the conventional wisdom relates to the E-series, so this is not of much help in that regard. But it seems to be a little-known fact that the AU differs from the E-series in this critical area. An AU owner reading E-series discussions would form the mistaken impression that to boost his engine, he'd need to fork out for an aftermarket ECU.
_________________ AU1.5 Wagon, Raptor ProStreet kit, Pacemaker 4499's with 3" collector, 3" metal cat, 3" pipe, Pex BSO660 & BSO439, BA brakes, Sprintgas mixer LPG system, Airod variable-venturi mixer... stealth FTW Sniper tuned! |
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matt 158 |
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nice info could help me alot can you please explain it in a way a dummy like me can understand it im good with engines but not electronics
Matt
_________________ BF XR6T: Atomic 698 rebuild, bigger huffer, all the Process West goodies, 4" Exhaust, ZF 6 speed tidy up, F6 kit, Boss Bonnet, Black 20" XHP s-35's, Kings sl's with monroe shocks, Street Tune: 396 rwkw on 18 psi. Race Tune: ......... see you at summernats :p |
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