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Author Topic: Megasquirting  (Read 24376 times)

Offline Empedocles99

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Megasquirting
« Reply #40 on: 12:22:15 PM / 29-Jun-07 »
Ohh hells yes, I ran the auto tuning software in MegaLogViewer on the data I collected yesterday. The car is noticeably faster now, especially between 5000->6500 rpms, it used to be pretty weak there, now it is much less weak.
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline Empedocles99

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Megasquirting
« Reply #41 on: 02:55:12 AM / 26-Oct-07 »
Car's been running strong since. Still haven't bothered to tune the start up enrichments (it starts poorly when it's cold out). Many miles and probably 4 track sessions, no problems at all, it's dope.

Next is ca20et
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline TalkingGoats

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Megasquirting
« Reply #42 on: 08:16:40 AM / 26-Oct-07 »
Thats awesome man. I would like to see videos of it pulling through the gears though. I am thinking your the only guy to truly tune a CA20E. What will you keep up with at the track. Skills set aside so I have a nice comparison of what its power
I'd rather be a matchstick than a lighter.

Offline Empedocles99

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Megasquirting
« Reply #43 on: 11:48:58 AM / 26-Oct-07 »
Quote from: DeathAndMajesty
Thats awesome man. I would like to see videos of it pulling through the gears though. I am thinking your the only guy to truly tune a CA20E. What will you keep up with at the track. Skills set aside so I have a nice comparison of what its power

It's hard to say.

On the street I'm about even with non-si non-type r civics in a straight line. At the 1/8 mile drag races, I beat an automatic 65 mustang, and nothing else (all the civics there are tuned).

On the road courses, I think it's more a function of driver skill (mine) as to why I get to pass people. I'm dead even with some slightly tuned and stock miatas, I think they're the best comparison, and one that I am happy to make

I realize that I haven't quantified anything, but my best (and there's still a little room for driver improvement) lap time from Willow Springs: 1:46.435

1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline 200sxkitcar

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Megasquirting
« Reply #44 on: 09:18:20 PM / 26-Oct-07 »
Do you have any of your fuel maps posted yet?  This is a really great thread btw!  Keep it up   Eventually there will be so many problems with the stock electronics that updating to a newer system will be necessary, and it would be great to have a route to follow....
Sterling Picton
 

Offline Empedocles99

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Megasquirting
« Reply #45 on: 11:17:32 PM / 26-Oct-07 »
Quote from: 200sxkitcar
Do you have any of your fuel maps posted yet?  This is a really great thread btw!  Keep it up   Eventually there will be so many problems with the stock electronics that updating to a newer system will be necessary, and it would be great to have a route to follow....

I posted a link, in the first post, to a rough working tune (I don't think it's my most recent tune).

For maximum power, you'll have to fine tune it anyways because your intake/muffler/timing will be different from mine.
« Last Edit: 11:17:52 PM / 26-Oct-07 by Empedocles99 »
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline sideways_s12

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Megasquirting
« Reply #46 on: 02:27:56 AM / 27-Oct-07 »
this also works with the 18et yeah? in the near future I will be building a 18et and will need a ems was thinking of going with wolf though

Offline Empedocles99

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« Reply #47 on: 02:52:33 AM / 27-Oct-07 »
Quote from: sideways_s12
this also works with the 18et yeah? in the near future I will be building a 18et and will need a ems was thinking of going with wolf though

Yeah, you can do the same stuff with the 18et, but some of the wiring is different.

With the wolf you aren't going to have a cool mafless intake, you can't tune it yourself (maybe that is not important to you), you can't get it dyno-tuned, etc.
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline sideways_s12

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Megasquirting
« Reply #48 on: 04:57:24 AM / 28-Oct-07 »
hmm.....

Offline 200sxkitcar

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Megasquirting
« Reply #49 on: 01:20:10 PM / 28-Oct-07 »
The CA18ET uses a more advanced engine management system than the MK1 CA20's.  MK2 CA20 ECU's function very similar to the turbo cars (regular transistorized coils, optical distributor, ect) so I dont know if/how the Megasquirt would work with the turbo system.  I would like to learn how to do this on the regular old CA20e system, and then apply it to the  CA18ET, but there are those differences to work out...  The CA20 electronics I have are for the later cars (more advanced) because my car is an 88....  
Sterling Picton
 

Offline Empedocles99

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« Reply #50 on: 02:41:20 PM / 28-Oct-07 »
The megasquirt transistorizes my ca20e coils... it'd actually be easier to do timing on the ca18et because you can trigger both coils with the same signal (I think). With the ca20e, the ecu has to handle a lot of current that the ca18et ecu doesn't (transistors), so you have to have two transistors in the megasquirt, whereas you can probably get away with one for a ca18et megasquirt. This makes the whole affair of ordering or assembling much easier, actually.

The megasquirt has input for optical sensors distributor sensors, so there is a little bit of difference in setup there from my writeup, but it is possible to trigger the timing with it.
« Last Edit: 03:19:21 PM / 28-Oct-07 by Empedocles99 »
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline 200sxkitcar

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Megasquirting
« Reply #51 on: 07:01:43 PM / 28-Oct-07 »
Really!  Thats good to know.  I have lots of research to do yet, but thats assuring to realize that the optical stuff would work.  So much research to do...
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Offline Empedocles99

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« Reply #52 on: 10:14:57 PM / 28-Oct-07 »
Quote from: 200sxkitcar
Really!  Thats good to know.  I have lots of research to do yet, but thats assuring to realize that the optical stuff would work.  So much research to do...

Yeah, the hard part is you gotta mod the distributor, you have to make it so it doesn't do rpm & vacuum advance (jb weld the weights, and plug the vacuum lines).

Then, you have to get the optical signal in to the megasquirt (probably solder some wires to the ic in the distributor).

All it takes is some electrical knowhow and quality time with the factory service manual, as I have evidenced here

Worst case, you just let the distributor do the timing, and use the megasquirt for fuel only like I'm doing now, it's much easier to do it that way (though there probably is some power to be had by fiddling with the timing)
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline 200sxkitcar

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Megasquirting
« Reply #53 on: 10:05:03 PM / 29-Oct-07 »
On the cars with the optical distributor, there are no centrifugal weights, and there is no IC unit in the distributor, at least as far as I'm aware.  All there is is the optical sensor, which the computer reads and controls the transistors that way.  Thats really good that the Megasquirt will run thru the transistors, but I'm not too sure about, actually the question really is, can it interpret whatever signal comes out of the optical unit?  Maybe the optical unit does have an IC, and that signal is sent to the computer, but I'm not sure.  Like you said, some quality time with the FSM is in order!
Sterling Picton
 

Offline Empedocles99

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Megasquirting
« Reply #54 on: 10:26:53 AM / 30-Oct-07 »
50. Next you need to make a decision. There are two input circuits for the tach signal:

    * The Hall/optical/etc. circuit takes the square wave input from a Hall sensor, optical sensor, or points. It can also be used for triggering off the coil (but only if you are not controlling ignition timing).
    * The VR circuit takes the AC signal from a variable reluctor sensor and converts it to a square wave for use by MegaSquirt.

Worst case you have to mod the distributor a bit, but it should work
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline 200sxkitcar

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Megasquirting
« Reply #55 on: 09:43:00 PM / 30-Oct-07 »
Oh ok rock on then I missed that.  So much to learn....
Sterling Picton
 

Offline Empedocles99

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Megasquirting
« Reply #56 on: 12:42:10 AM / 02-Nov-07 »
It was 'cold' (for Southern California anyways, 55 Fahrenheit) this morning, so I tuned the cold start. Starts up much nicer now when the engine is cold, no more stuttering because of a lean idle

I'll post the new msq sometime soon.
« Last Edit: 01:43:07 AM / 02-Nov-07 by Empedocles99 »
1985 Nissan 200sx Notchback (ca20e)
2005 Honda s2000 Sebring Silver (my daily driver)
1970 Chevy Malibu Astro Blue (a work in progress)

http://www.indolence.net/s12/

Sparco Sprint Seats, RCI 6 Point Harness, Tokico Illumina Shocks, SSC Springs, Front & Rear Addco Anti-Sway Bars, Porterfield R4 Metalic Pads, Konig Rewinds & Kumho Ecsta V710 205/50/15, Prothane Bushings, K-Mac Rear Camber Adjuster, z31parts.com Spring Seats, Autopower Roll Bar, Megasquirt & LC-1 Wideband (12.0:1 AFR)

Offline 200sxkitcar

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Megasquirting
« Reply #57 on: 01:19:17 AM / 16-Apr-09 »
bump, moved and stickied
Sterling Picton
 

Offline BattleFairy

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Re: Megasquirting
« Reply #58 on: 12:02:55 PM / 09-Nov-10 »
why ya dont switch to an edis system?

its somewhat simpel serious

even i was abel to get the idea behind lol and serious
i have no clue what iam doing there

my edis 6 + trigger wheel (36-1) was around 80 bucks
the hardest part was to find out, how i could use my buick accel coilpack instead of the Ford coil

also i highly suggest to buy the premade harness :yes: makes life more easy
+
you get an awesome slim harness :cool2:

the downside
its alot more work if you want make it nice


for ppl like me a more simpel diagramm
« Last Edit: 12:11:26 PM / 09-Nov-10 by BattleFairy »
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Offline BattleFairy

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Re: Megasquirting
« Reply #59 on: 04:22:32 AM / 13-Dec-14 »
Hey Mates, Does anyone have an Ignition Basemap for a CA18et?
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