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Author Topic: MegaSquirt Plug and Pray  (Read 12639 times)
garsten
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« on: September 30, 2011, 12:08:32 pm »

I am curious about it. I am thinking about moving away from the QTRhorse BE/EA combo.

i agree, in some applications, the MAF meter just gets in the way.  other applications, i think MAF is great.  i have never been a big MegaSquirt fan, but this is interesting and the price is quite reasonable.

since the quarterhorse came out, it seems to me Clint is spending most of his time on QH, which does not seem to benefit people still using the tweecer.

cheers, claude

the above quote came from a thread David C. started in April this year.

since i am now retired and have plenty of time, i decided to take a chance on this MegaSquirt plug and pray device.

http://www.diyautotune.com/catalog/megasquirtii-v357-plug-and-play-for-19861993-50-mustang-p-418.html

arrives today, should be interesting.  i have read a lot of the manual.  MegaSquirt2 has 6 different board configuration.  they refer to the software with what appears to be several terms, embedded code, firmware, and simply code.  I think the latest released code might be Version 2.1 Extra.  the sequential stuff, MS3, appears to still be in development and is up to Version 2.9x.

i am hopeful that this product has matured enough to be fairly stable.  one of the big advantages is that bowling and grippo have developed the ecu hardware and also have some control over the software run by the ECU.  the code actually comes in the install package.  the code has progressed to the point that the original freeware C compiler is no longer able to "handle" the size of the project, so it looks like if you want to mess with the code, you need to purchase the recommended compiler.

cheers, claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
garsten
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« Reply #1 on: September 30, 2011, 12:16:03 pm »

I will be putting this ECU in my 68 F100.  here is what is in the 68...

30 over 460, a baby step over stock, ported dove heads, 9.5:1 static compression.

converted to EFI using a complete mass-flo efi kit in 2006.  RJM harness, victor 460 intake, 4 barrel throttle body, 30 # injectors, A9L using tweeker, moates, BE/EA.

best ET...13.3 @ 101 mph, approx 3850 lb.

cheers, claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
garsten
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« Reply #2 on: October 05, 2011, 10:49:09 am »

i was prepared when the package arrived with my mail @ 1 pm.  this past friday.  around 2:30 pm i had the truck started and idling.  the base tune they suggest you use, and probably the base tune found in the computer when it arrived was not set up for a 302 cubic inch engine with 19 pound injectors.  i knew i would have to change this part of the tune for my 460, but was surprised it was not set properly.

they suggested using a s/w application named Tuner Studio.  I used a laptop with a serial port and the connection between s/w and h/w was flawless, no problems.  i calibrated the sensors, which there website states would already be completed, and all the gauges i had displayed in Tuner Studio worked as expected.  with the key on, engine off, you can read temp gauges and map readings. 

the documentation included was one page, one sided.  they suggest you read, read, and then read some more (links provided on the document), most of which I had read between the time I ordered and the time the package arrived.  i did not realize this, but they have already written a tech article on doing the install.  here is the link...

http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_ford_mustang-pnp-faq.htm

here are a couple of FAQs i found interesting...

Common questions

How can I add a wideband O2 sensor to it?
You'll need both a wideband O2 sensor and a controller. Nearly all aftermarket wideband controllers have an analog output. You will splice this wire to the wire coming from pin 29 of the EEC-IV harness. Then you will connect to the ECU using TunerStudio, go to Tools -> Calibrate AFR Table, and enter in the output curve for your  wideband controller.

What OEM sensors does this kit use?
It uses the TFI distributor Hall sensor, throttle position sensor, coolant temperature sensor, intake air temperature sensor, and the left bank O2 sensor. Some users prefer to replace the factory IAT sensor with a GM version. There is a 2.5 bar MAP sensor built into the MegaSquirt, so it does not use the stock MAP or MAF sensors.

went to san diego this past weekend.  have to set the base idle this morning and go from there.

cheers, claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
David Claflin
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« Reply #3 on: October 05, 2011, 11:35:16 am »

What are you going to do with your mass-flo throttle body??
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1985 LTD LX 347, 205 11R's, TFS-R, 90MMTB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
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garsten
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« Reply #4 on: October 05, 2011, 12:34:35 pm »

What are you going to do with your mass-flo throttle body??

the throttle body stays.  it has the idle air control and TPS incorporated.

just had to remove the air cleaner, remove and disconnect the MAF and disconnect the BAP.

cheers, claude


* IMG_1245.JPG (1547.59 KB, 2816x2112 - viewed 1430 times.)
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
fidstang
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« Reply #5 on: November 20, 2011, 03:36:56 pm »

What are you going to do with your mass-flo throttle body??

the throttle body stays.  it has the idle air control and TPS incorporated.

just had to remove the air cleaner, remove and disconnect the MAF and disconnect the BAP.

cheers, claude

keep us posted, I'm thinking about going this route on my 91 lx.
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garsten
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« Reply #6 on: December 01, 2011, 11:57:45 am »

What are you going to do with your mass-flo throttle body??

the throttle body stays.  it has the idle air control and TPS incorporated.

just had to remove the air cleaner, remove and disconnect the MAF and disconnect the BAP.

cheers, claude

keep us posted, I'm thinking about going this route on my 91 lx.

with some minor tuning at idle, the f100 starts, idles and warms up just fine.  occasionally, when driving around town, after shutting it down and restarting, the idle circuit messes up slightly and it will seek the idle rpm.  this clears up with a blip of the throttle, but i am sure with time i can tune this thing slightly better.

i have not purchased a wide band yet, so i have left most things in the tables alone.  it seems to be running plenty rich, so i have not worried too much about this yet.

took the truck out to the track for a test and tune.  my slowest et was 13.48, the fastest time slip i got was 13.18 @ 103.65, which is the best et and mph the truck has ever run.  this was on 11/19, so the temps were down quite a bit for S. AZ.  the two other passes i made were 13.30 and 13.34, which are right in the ballpark of where the truck ran with the EEC-IV.  my previous best et was a 13.296, April this year.  last time i weighed the truck it was 3960 w/driver.

overall, i would say I am alright with my purchase.  i need to get a wideband O2 and get together with a buddy who has tuned using similar efi and software.

thanks for the interest fidstang.

cheers, claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
the only Qualk
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« Reply #7 on: July 30, 2012, 10:41:15 am »

Any word on how truck is going?
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1965 Ford Falcon Sedan 302, 5 spd, 4.62 gear
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69 Merc
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« Reply #8 on: July 30, 2012, 03:32:58 pm »

Any word on how truck is going?

I thought that he sold the EFI system and slapped an annular 850cfm race carb on it a couple of months ago?     Grin
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
garsten
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« Reply #9 on: July 31, 2012, 10:56:39 am »

Any word on how truck is going?

installed a WBO2 earlier this year and did some tuning around idle.  i have not started tuning off idle yet, i know it is running rich so i'll get to it when i get to it.  truck has been on jack stands quite a bit lately.

i widened the wheel wells in the bed of the truck, then removed the bed and had some body work done to get it ready for paint.  the guy who did the body work sprayed in a bed liner.

truck should be back to the original color by labor day.

also found one of my varishock had come apart so i sent them back to chris alston to be repaired/updated.

getting ready to buy the cam for the 521 i am getting ready to build.

cheers, claude


* IMG_1342_1.jpg (801.48 KB, 2651x1422 - viewed 687 times.)

* IMG_1366_1.jpg (674.63 KB, 2300x1450 - viewed 616 times.)
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
69 Merc
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« Reply #10 on: July 31, 2012, 03:19:01 pm »

A 521" engine?  Nice!!!

Will the track allow you to put the battery in the bed?
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Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
garsten
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« Reply #11 on: July 31, 2012, 04:41:04 pm »


Will the track allow you to put the battery in the bed?


yes they will.  at this time, i have no interest in moving the battery.

claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
RunninHorse
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« Reply #12 on: May 08, 2014, 03:35:01 pm »

Claude did you end up sticking with the MegaSquirt?
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I'm Rob.  Working on my '93 Reef Blue coupe.  Stock internal 302, 80 MAF, 75 TB, Victor 5.0, High Ports, 30# inj., B303, 1.6s, Tremec TKO 3550, Quicktime bell, Fidanza Al flywheel, stage 3 ceramic clutch, & 4.10s.  12.68 @ 111.69
'66 F100 shortbed, 352ci, 3 on the tree - on hold
'65 Coupe rolling chassis - on hold
Parts I'm selling: 
Hardened Push Rods - Trick Flow 6.2" .080 - $60
Misc. Fox Body Interior Pieces
garsten
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« Reply #13 on: May 08, 2014, 05:08:54 pm »

yes, i am still running MS-II Extra in my 68 f100.  works fine for what i am doing.

cheers, claude
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81 fairmont, 347, MS3X ECU, Accufab 4-barrel TB, mass-flo efi intake, canfield 195's, CI cam, 42# injectors, powerglide, REF headers, 3 1/2" exhaust, 4.10 gears.
RunninHorse
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« Reply #14 on: May 08, 2014, 05:33:31 pm »

Ok, cool.  Was curious if it worked out for you.  Local guy is trying to use it in his 67 Mustang.
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I'm Rob.  Working on my '93 Reef Blue coupe.  Stock internal 302, 80 MAF, 75 TB, Victor 5.0, High Ports, 30# inj., B303, 1.6s, Tremec TKO 3550, Quicktime bell, Fidanza Al flywheel, stage 3 ceramic clutch, & 4.10s.  12.68 @ 111.69
'66 F100 shortbed, 352ci, 3 on the tree - on hold
'65 Coupe rolling chassis - on hold
Parts I'm selling: 
Hardened Push Rods - Trick Flow 6.2" .080 - $60
Misc. Fox Body Interior Pieces
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