Makes me wonder if when Ford did the FPC voodoo they picked a firing order (more than one is possible) that would permit the headers to also work with a CPC (which can also have more than one firing order). If so, that's simply brilliant planning!
I guess possible, but I'm wondering if they share the design because it fits and thus power left on the table in at least one configuration...
I think long tubes will always perform better than factory headers but Ford would not just carry these over from the GT350 if the firing order was not fully compatible as the engine would not run right because it would be difficult (maybe impossible) to get the O2 wide-bands to read accurately if cylinder pulses were not correctly coordinated at the collector.
Well, the sensors don't care but the engine management logic does. Sure, you can turn off a lot of stuff in the tune to get around all that but there's no way Ford releases engines like that. If you can get hold of any of the recent Motorcraft Principles of Operations manuals for any of the modern Ford engines the ECM actually knows a lot about history ...on some engines it can infer which cylinder experiences a misfire even tho OBD-II may not care.The O2 sensor couldn’t care less, it only cares about mixture on that bank, not even by cylinder. I suppose all of the vehicle that had zoomies installed, or a turbo mounted to an exhaust manifold log are running on magic.
Well, the sensors don't care but the engine management logic does. Sure, you can turn off a lot of stuff in the tune to get around all that but there's no way Ford releases engines like that. If you can get hold of any of the recent Motorcraft Principles of Operations manuals for any of the modern Ford engines the ECM actually knows a lot about history ...on some engines it can infer which cylinder experiences a misfire even tho OBD-II may not care.
The O2 sensor couldn’t care less, it only cares about mixture on that bank, not even by cylinder. I suppose all of the vehicle that had zoomies installed, or a turbo mounted to an exhaust manifold log are running on magic.
Yup. That is correct. That's why the header configuration matters since you can only do that with headers that correctly 'time' the pulse spacing at the collector, which also aids in exhaust gas extraction -- more important for NA motors but also beneficial with SC.I could be wrong but I thought in the newer wideband equipped Mustangs the computer can read individual cylinders on the 02. It in essence knows this by knowing when the cylinder fired and will know when that exhaust is passing over it.
My '09 with the FRPP/Whipple 2.9 kit was an absolute brute and it was certified at 725hp. With the DCT and likely at least as much power the 2020 should do just fine in my book.
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