MM9697 being released tonight at midnight... - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 02-13-2008, 01:58 PM   #21
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Originally Posted by cjernigan View Post
You can run HiRes Rafa. You'll have to get Manny to install a .1nF Capacitor between JS8 and GND. I can adjust their MSQ for you if you feel the need to run that with your parallel install. Are you mostly interested in their ignition table? The other things like acceleration enrichment won't work with your injectors without some adjustment.
You have PM.
You got it. I'm working on my car's timing and as I told you when you built this one; my original intent was to go with the MSPNP once it was available. I'm trying to set a conservative timing and fix some issues with my WB for the time being.

BTW, I assume the capacitor you mention shouldn't be too difficult to get locally; I'm I right? This would be a good time to do it also because we're going to be doing the fan control mod this week also.

Thanks,

Rafa
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Old 02-13-2008, 02:12 PM   #22
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Yeah, you should be able to get it locally no problem.
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Old 02-13-2008, 02:15 PM   #23
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Yeah, you should be able to get it locally no problem.
Ok, thanks; btw read the pm.
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Old 02-14-2008, 05:01 AM   #24
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Originally Posted by UrbanSoot View Post
hehe... time to sell mine to upgrade to full standalone!! (cant do it with my current one because i have a/c and i want to use it)
from the diyautotune website
"AC Control (yes your ECU controlled A/C will continue to function properly)"
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Old 02-14-2008, 10:41 AM   #25
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Heres a question.

How did you guys determine the 8.0 crank dwell, and the 1.0 min discharge, Its higher then the 94-95 cars. Any advantages?

I also didnt compare the spark tables of the 9495 msq and the 9697, are they different? If so would that spark table work on a non hi res version of the firmware?
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Old 02-14-2008, 10:45 AM   #26
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Lots of testing with a scope and a dyno. They are the proper settings for use on the MM9697 cars. In reality you could go longer on cranking dwell, the stock ECU does, but we don't really need to so we didn't.

Yes the spark tables are a bit different from the MM9495 to MM9697, not much but a little. And yes they can be exported into .vex files and brought into another map used on different firmware.
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Old 02-14-2008, 10:52 AM   #27
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What advantage does a long dwell provide at cranking?

I have tried googling but havent netted much info on ignition dwell.

Can the AE settings be ported to a non hires firm as well?
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Old 02-14-2008, 11:48 AM   #28
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Quote:
Originally Posted by Saml01 View Post
What advantage does a long dwell provide at cranking?

I have tried googling but havent netted much info on ignition dwell.

Can the AE settings be ported to a non hires firm as well?
Longer dwell creates a "longer" spark output so it will fire better when cold.
Yes you can export the fuel table and import into your MSQ to be used with Hi-Res. You'll still have to tune like always though.
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Old 02-14-2008, 12:00 PM   #29
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Originally Posted by cjernigan View Post
Longer dwell creates a "longer" spark output so it will fire better when cold.
Reeeeeeeealllly

sounds good to me, I'll give that a try tomorrow
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Old 02-14-2008, 12:05 PM   #30
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Originally Posted by richyvrlimited View Post
Reeeeeeeealllly

sounds good to me, I'll give that a try tomorrow
Hell don't quote me on anything but here is a good writeup explaining it better than I.

Quote:
The ignition coil has to be carefully controlled to deliver a high voltage pulse to the spark plug. The ignition coil is charged a short time prior to delivery of the high voltage pulse. The coil will continue to deliver the high voltage for the spark plug for a predetermined amount of time, called spark dwell. The dwell time is very important to produce a sustained spark inside a spark ignition engine. The dwell time insures proper ignition within the engine. The charge and dwell times of a spark ignition engine will be controlled by the microcontroller's timers.
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Old 02-14-2008, 12:25 PM   #31
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Originally Posted by FoundSoul View Post
Lots of testing with a scope and a dyno. They are the proper settings for use on the MM9697 cars. In reality you could go longer on cranking dwell, the stock ECU does, but we don't really need to so we didn't.

Yes the spark tables are a bit different from the MM9495 to MM9697, not much but a little. And yes they can be exported into .vex files and brought into another map used on different firmware.
FoundSoul; how about for those who've done the COP conversion? Would the cranking dwell also be any different than the one being used in 91/95 cars? I ask because my cranking dwell was 3.5 instead of the 2.5 suggested by braineack and I wasn't facing any issues that I could notice.
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Old 02-14-2008, 02:48 PM   #32
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^ if aint broken dont fix it.

Quote:
Originally Posted by cjernigan View Post
Longer dwell creates a "longer" spark output so it will fire better when cold.
Yes you can export the fuel table and import into your MSQ to be used with Hi-Res. You'll still have to tune like always though.
Well that should easily fix my cold start issue requiring long cranking times on the first shot.
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Old 02-14-2008, 02:58 PM   #33
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diy is pretty baller.
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Old 02-14-2008, 03:57 PM   #34
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Quote:
Originally Posted by Rafa View Post
FoundSoul; how about for those who've done the COP conversion? Would the cranking dwell also be any different than the one being used in 91/95 cars? I ask because my cranking dwell was 3.5 instead of the 2.5 suggested by braineack and I wasn't facing any issues that I could notice.
The dwell required depends on the nature of the coils. It seems a lot of the COP conversions have hotter coils with shorter dwell times. If you're not having problems with the coils you have I would leave the settings alone.
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Old 02-14-2008, 04:10 PM   #35
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Originally Posted by Stealth97 View Post
The market would be bigger because the only PNP standalone for the 90-00 is the $2k hydra, the link was never a option in standalone form, and there are a ton of these running around with band aids do to the cost.
I could not agree more.. Probably should of done 99-00 prior to 96-97.

Oh well.. Hopefully we get a unit soon. I've got money in my pocket and ready to buy once we can purchase a complete plug and play unit for the NB with some good baseline turbo files.
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Old 02-14-2008, 04:35 PM   #36
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Now just make a PNP unit that can falsify the emissions information through the diag port and you are golden.
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Old 02-14-2008, 07:11 PM   #37
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Are you guys using TPS based AE or RPM Based? I see you have changed the values for TPS based, and you have enabled RPM based as well.

So which is the one that is used?

Last edited by Saml01; 02-14-2008 at 07:24 PM.
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Old 02-15-2008, 12:03 AM   #38
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Originally Posted by Saml01 View Post
Now just make a PNP unit that can falsify the emissions information through the diag port and you are golden.
What'd you say? Give the feds a reason to shut down my business and put me in prison? ummmm... nah.


On the AE- we set the MM9697 up for RPM based AE using TPSdot. Works well, simple to tune.
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Old 02-15-2008, 12:58 AM   #39
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Just market it as "offroad use only" and you will be safe.;-)

On the AE- I still dont understand how you guys tune it. All I know is that when I set it out of bounds the car stumbles when I give it abrupt throttle. Otherwise with the 9495 values I never had a problem or noticed a problem.
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Old 02-15-2008, 01:08 AM   #40
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Just use their v/s values then adjust the pw's for your injectors. You can use the PW adjustment calculator in the sticky to get it close. Then adjust from there while you sit in your parking spot revving your car while people look funny at you.
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