Megasquirt PNPPro-MM0105 crank trigger question.
12-11-2021, 08:40 PM
#1
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Megasquirt PNPPro-MM0105 crank trigger question.
Hello...I purchased the Flyin Miata stage one turbo with an adjustable crank trigger wheel that allows for 4 degrees of advance (6 on the timing scale) and 8 degrees of retard (18 on the timing scale.) If I align the crank pulley notch at TDC, and align the trigger wheel to TDC, the notch in the trigger wheel aligns with 10 on the timing scale, which is the stock trigger wheel alignment. This is without any advance or retard. Can I do this using Megasquirt PNPPro-MM0105 TunerStudio to get my base timing, or do I need to buy the Flyin Miata 36-2 trigger wheel?
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12-11-2021, 09:25 PM
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Since you have a Megasquirt, you absolutely do NOT need the aftermarket adjustable timing wheel. That thing is seriously obsolete tech, from the days when the stock ECU was the only choice for NBs.
With the MS, you have full, complete control over the ignition map.
The fact that you're asking this question concerns me somewhat, as to whether you've done your homework and really have a g what it takes to safely & reliably tune up a forced-induction system with a (relatively) complex aftermarket ECU.
With the MS, you have full, complete control over the ignition map.
The fact that you're asking this question concerns me somewhat, as to whether you've done your homework and really have a g what it takes to safely & reliably tune up a forced-induction system with a (relatively) complex aftermarket ECU.
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12-12-2021, 08:48 AM
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You can leave the tigger wheel wherever it was set and use the timing offset to get to 10 BTDC. IIRC that's the first thing you are supposed to do once you get the engine started and idling ok. From what little I've read the 36-2 trigger wheel can/will increase spark timing accuracy over the OEM trigger wheel. You don't need anything else, read the MS3 installation instructions.
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12-12-2021, 10:41 AM
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(I moved this over from your other thread
No, in that case, go ahead and use the adjustable FM wheel, and simply lock it at zero.
To the best of my knowledge (it's been a while since I looked), the MS does not have a software mode which will allow it to recognize the NB's stock cam sensor in conjunction any sort of non-OEM-patterned crank wheel. So while you could get the engine to run on the 36-2 wheel, you'd be sacrificing VVT control.
To the best of my knowledge (it's been a while since I looked), the MS does not have a software mode which will allow it to recognize the NB's stock cam sensor in conjunction any sort of non-OEM-patterned crank wheel. So while you could get the engine to run on the 36-2 wheel, you'd be sacrificing VVT control.
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12-12-2021, 09:16 PM
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Thank you Joe...next question...Have I got my ducks in a row here regarding the Flyin Miata piggyback engine management (fuel control)...the Flyin Miata engine management piggyback to the stock ECU is disconnected, and the vacuum line attached to the piggyback box unhooked and used for the supply to the Megasquirt. The wires from the piggyback are removed from the stock ECU harness and the original harness wires reconnected together or can they just be cut off from the pigtail connectors used for splicing into the harness?
I am still in learning mode...should have done ECU before FM turbo...but life is never simple. I haven't received the ECU yet, so these questions are me doing asking stuff.
I am still in learning mode...should have done ECU before FM turbo...but life is never simple. I haven't received the ECU yet, so these questions are me doing asking stuff.
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