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-   -   Track car: Which Piggyback? (https://www.miataturbo.net/ecus-tuning-54/track-car-piggyback-34769/)

Tirewarmer 05-09-2009 02:24 PM


Originally Posted by Joe Perez (Post 406570)
Hmmm.. I'd consider it in violation of rule #12, and yet permitted by Rule #50. Definitely worth investigating.

Exactly how I see it. But, even if it is deemed illegal, I can still run the megasquirt at other events.



Originally Posted by Joe Perez (Post 406570)
This sounds like a good cause, and an interesting challenge. I'd be happy to turn one out for you in exchange for beer.

I will definately take you up on that offer. Please let me know what I need to buy as far as parts. And hopefully you drink good beer so that this is a somewhat equitable trade. Also, I am allowed to add sensors, so if adding an IAT or anyother type of sensor would be helpful, I can do it.

I can paypal you the cash to start right away. I'd love to have this up and running for my next Time Trial event.

There is a dynojet right down the street from work, so I'll be able to stop in and tune at lunchtime and be able to compare the powercard, megasquirt, and no tuning back to back.

Joe Perez 05-09-2009 02:49 PM


Originally Posted by Tirewarmer (Post 406632)
I can paypal you the cash to start right away. I'd love to have this up and running for my next Time Trial event.

Unfortunately, I'm in NYC right now and thus away from my workshop, stim, etc. Right now we're awaiting a decision (which should happen in the next couple of days) as to whether we're going to move WCBS-FM this coming Friday or wait a couple of weeks while ConEd moves the power feed for the building onto a new bus. If they delay, I'll be headed back home probably sometime this week. If not, I'll be here a while. If time is a factor (and I wind up staying) then you might want to have someone else do it. Otherwise, I'll be happy to build it once I am back home.

Tirewarmer 05-09-2009 03:04 PM


Originally Posted by Joe Perez (Post 406639)
Unfortunately, I'm in NYC right now and thus away from my workshop, stim, etc. Right now we're awaiting a decision (which should happen in the next couple of days) as to whether we're going to move WCBS-FM this coming Friday or wait a couple of weeks while ConEd moves the power feed for the building onto a new bus. If they delay, I'll be headed back home probably sometime this week. If not, I'll be here a while. If time is a factor (and I wind up staying) then you might want to have someone else do it. Otherwise, I'll be happy to build it once I am back home.

I can wait for you to get home :)

Tirewarmer 06-09-2009 03:36 PM

Anyone ready to do some fuel only megasquirt building for me? :wavey:

AbeFM 06-24-2009 01:54 PM

I've seen plenty of piggyback setups where the ignition (and fuel) lines are on a (or two) switch(s), and you can jump back and forth in real time. So I don't see what would be wrong with building a full MS, and just letting the OEM computer be in charge of the spark during NASA events.

Tirewarmer 06-24-2009 04:36 PM


Originally Posted by AbeFM (Post 423160)
I've seen plenty of piggyback setups where the ignition (and fuel) lines are on a (or two) switch(s), and you can jump back and forth in real time. So I don't see what would be wrong with building a full MS, and just letting the OEM computer be in charge of the spark during NASA events.

Basically, I can do that. Could a switch be hooked up pretty easily to do that? As you can tell, I am not megasquirt savy, and would need some help.

I'm willing to pay if any of you guys are still willing to help me out.

I have an SCCA Time Trial at Roebling Road this weekend, and a NASA TT at Lowes next Friday. Would love to try and do something before Lowes. Otherwise, I may just have to hit the dyno for a couple of pulls to get the powercard that I'm currently using adjusted as well as possible.

AbeFM 06-24-2009 05:02 PM

Odds are, unless you have someone there who's electronics savy and/or an already built MS you can use, that you're not going to have it ready in time.

If you could run extra injectors I've got a piggy link I'm trying to get rid of. :-P


Here's the question - it's a '99 motor, you have to run a 96 computer? Can you tweak the O2 sensor's signal to make it run rich?


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