Nothing to see here, just project Sisyphus, move along - Page 107 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-22-2015, 04:35 PM   #2121
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6) I've tested pin 20, EBC input pin, and it's PERMANENTLY GROUNDED. This, to me, is incorrect.

Sent Rev a PM, I really hope to finish tuning this car, it's done aside from the EBC fiasco.
Yeah, I think you're down to opening up the case and probing the signal traces to see where it's getting grounded. My first guess would be that there's a solder glob on the connector that's jumping pin 20 to 21 (21 is ground).

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Old 09-22-2015, 08:05 PM   #2122
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Pulled the unit, checked the db37 again, everything looks good, nothing touching.
At that point I just gave up on pin 20. Wasted too much time with pin 20.

.........wired up the EBC to Pin 19, Nitrous2.

.....SUCCESS!!

So there must be something shorted inside the MS for pin 20, but at least now we have a functioning EBC.
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Old 09-22-2015, 08:09 PM   #2123
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Yay!
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Old 09-22-2015, 11:26 PM   #2124
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We're gonna shoot for a wastegate "track" setting, 15psi "street" setting, and 20psi "kill mode" setting.

And maybe later if G wants to dump corn into it, a e85 "ALLOFIT" setting? hehe
It would make absolutely stupid power on e85. Simply stupid.
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Old 09-22-2015, 11:51 PM   #2125
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I'm trapped out here in the desert with limited connectivity and LOVING the updates.

Part of me is glad it wasn't my fault but now sad to know i have a dead output on my MS. Does that mean the Borg EBC might actually be working? Maybe i can toss it in the toolbox as a spare or something.
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Old 09-22-2015, 11:57 PM   #2126
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Glad you were able to get it figured out! in4ALLOFIT dyno results..
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Old 09-23-2015, 12:22 AM   #2127
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We're gonna shoot for a wastegate "track" setting, 15psi "street" setting, and 20psi "kill mode" setting.

And maybe later if G wants to dump corn into it, a e85 "ALLOFIT" setting? hehe
It would make absolutely stupid power on e85. Simply stupid.
Need 3.5bar MAP sensor, clutch and DW300 for E85.

I'm still having a hard time wrapping my brains around the fact that this is "only" a 6258.
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Old 09-23-2015, 12:42 AM   #2128
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Nope, the Borg solenoid is dead as hustlers e-thugging career.
It does not work. Period.

Is the thing still in warranty?

Last edited by 18psi; 09-23-2015 at 01:15 PM.
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Old 09-23-2015, 12:57 AM   #2129
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Lord only knows. That's actually the replacement that Fab sent me because the original had one of the nipples broken off as delivered. I can certainly ask, though I'd almost rather pick up another MAC so I won't have to fiddle with anything should the current one die.
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Old 09-24-2015, 03:02 AM   #2130
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Alright, I'm done with road tuning. Any more and this thing needs a dyno cause I aint goin to jail or getin dead.

For whatever reason Closed Loop is being all sorts of wonky, so I stayed with Open Loop boost for now (until I figure out which flavor of boost control PID this particular firmware likes, there's like 5 billion) .

Open loop 15psi, conservative 91craptane tune



AND DEN

I went and tried moar. 18psi open loop conservative 91 craptane




At 18, 1st is useless. 2nd is nearly useless. 3rd spun pretty hard about half the time.
This is on RS3's and with a 3.6FD.
It's proper fast now

The car didn't want to go past 18 without breaking up every now and then. I think the ignition system is about done. Also as you can see, the medium boost actuator is also done. Needs the high boost can or a 4 port to keep it from jigsawing like it does.

I tried to smooth it out with the boost map, but she wasn't havin it.

So anyway, your car is ready Gordon
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Nothing to see here, just project Sisyphus, move along-efrrr%252015psi%2520pump%252091oct.jpg   Nothing to see here, just project Sisyphus, move along-efrrr%252018psi%2520pump%252091oct.jpg  
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Old 09-24-2015, 03:37 AM   #2131
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You need LS3 coils.

--Ian
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Old 09-24-2015, 04:36 AM   #2132
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Holy crap that looks fast.

Have you figured out EV14's and the dead spot they seem to have WRT Accel enrichment when warming up? ISTR you having the same problem as me with your own car, dunno if you've figured it out with this one. I've got no-where with it unfortunately.
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Old 09-24-2015, 07:57 AM   #2133
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Well Done
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Old 09-24-2015, 09:51 AM   #2134
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jeeze, That 200tq spot has me like

Can't wait to see some videos
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Old 09-24-2015, 11:39 AM   #2135
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Thanks guys

Richy,
Weirdly, this car does not have that problem at all. It has a hot re-start leanness that I had to battle (mostly with ASE enrichment and taper settings) but upon warm-up it drives great and has no accel issues.
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Old 09-24-2015, 12:45 PM   #2136
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Nice! Now tune mine!

On another note, I just swapped to the LS2 truck coils and the the wiring is pretty straight forward. No extra module needed. Might be something to look into if you're having spark issues at higher boost.

Last edited by FrankB; 09-24-2015 at 09:40 PM.
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Old 09-24-2015, 09:36 PM   #2137
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Thanks guys

Richy,
Weirdly, this car does not have that problem at all. It has a hot re-start leanness that I had to battle (mostly with ASE enrichment and taper settings) but upon warm-up it drives great and has no accel issues.
I think I have all this correct:
EV14 injectors
Return type fueling with large return line
Still has hot restart issues (correctable)

Maybe I will just leave my fuel system alone, since, if I didn't have the AFR gauge in my face, I wouldn't know from drivability that all wasn't just peachy.

I think you tried to convince me before to not worry with it.
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Old 09-24-2015, 10:49 PM   #2138
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I think I have all this correct:
EV14 injectors
Return type fueling with large return line
Still has hot restart issues (correctable)

Maybe I will just leave my fuel system alone, since, if I didn't have the AFR gauge in my face, I wouldn't know from drivability that all wasn't just peachy.

I think you tried to convince me before to not worry with it.
I run EV14's (1k ID's at 60 PSI base pressure) and a return fuel setup and have no trouble at all with hot restarts. It's not an inherent problem with the hardware, just has to be tuned like any other setup. If anything I think a return fuel system should improve low load conditions since you can extend your pulse widths due to running lower fuel pressure at idle. My idle improved a bit when going from stock fuel setup to return style.
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Old 09-25-2015, 12:52 AM   #2139
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Good stuff! This motivates me to chuck the LS3 coils in and get mine tuned.
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Old 09-25-2015, 01:17 AM   #2140
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Originally Posted by patsmx5 View Post
I run EV14's (1k ID's at 60 PSI base pressure) and a return fuel setup and have no trouble at all with hot restarts. It's not an inherent problem with the hardware, just has to be tuned like any other setup. If anything I think a return fuel system should improve low load conditions since you can extend your pulse widths due to running lower fuel pressure at idle. My idle improved a bit when going from stock fuel setup to return style.
The only drivers for me were consistency at trailing throttle, elimination of the damper loop, and possibly smoother AFR (if fixing my exhaust mani didn't take care of that).
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