My Megasquirt success story

my01rs · 03-15-2008, 02:30 PM

Well I finally posted up my megasquirt success story so I thought I'd put the link here in case my fellow subaru enthusiasts ever search for info on MS. I don't surf here much but I've found a lil info here and there. I'm a rs25 guy. Enjoy for what it's worth.

-Ian

http://www.msruns.com/viewtopic.php?...st=0&sk=t&sd=a

* Registered users of the site do not see these ads.

Jaxx · 03-15-2008, 03:03 PM

any picts of the crank pickup setup

i am very curious what your map looks like

my01rs · 03-15-2008, 03:31 PM

My buddy has the custom wheel pics. I'm going to compile all the pics and install info when I get a chance and update the success story until it's more of a diy guide.

JWX · 03-15-2008, 06:31 PM

Why not just use the stock IACV?

my01rs · 03-15-2008, 07:05 PM

Quote:

Originally Posted by JWX

Why not just use the stock IACV?

Because on the ej20k, the iacv is huge and in the way of the bov if you want to upgrade from the weak jap tmic to the sti tmic I'm running. The iacv I used is an in line type so I made a flange to bolt to the oe location with a barb for a hose that goes to the iacv at the firewall.

Jaxx · 03-15-2008, 08:50 PM

will the ms drive the ej20k IAC

my01rs · 03-16-2008, 04:43 PM

Yes if you add the pwm idle control circuit which I had to do.

my01rs · 03-16-2008, 05:26 PM

Made a vid of my sequential led shift lights in action last night. Of course when i finally got to doing it, the first led doesn't come on. Any who, here's the vid. I'll take another when I fix the first led. The led that's missing is in the 6500 hash mark.

kgb · 03-18-2008, 02:27 PM

Coolness... working MS-I on a Subaru albeit with a standard trigger (24-1). Seems to be the easiest than to muck around with either 36-2-2-2 or 6/7 but since I need to run my stock ECU for OBD-II, I need to keep that trigger (I have 6/7). Had to goto MS2Extra because 6/7 required 2 hardware timers that is not available on the MS-I CPU even though I had code to support the trigger it's not going to be reliable. Still waiting for the GPIO board to make it a custom MS2Extra base board for pretty much a stock Subaru install (RS-T mind you on EJ251 no less - 10:1). You guys in Ontario or Quebec?

my01rs · 03-18-2008, 02:49 PM

I'm in upper michigan

kgb · 03-18-2008, 02:56 PM

IC - does the EJ20K use side-fed or top-fed injectors? Are the 660cc some modified STi injectors?

my01rs · 03-18-2008, 05:11 PM

They are old school sti side feeds

turboed22 · 04-02-2008, 11:55 AM

thanks man!! I will be putting one in my car in a couple months and this info will be very helpful!

So can you run a subaru IAC?
Can I get some details on the IAC you are running?

my01rs · 04-02-2008, 01:51 PM

You can use your oem iacv. I have an ej20k with the iacv in a stupid spot on the manifold. The oem placement does not allow the use of the usdm sti tmic. I used an in-line style iacv to remote mount it. Some german unit. Bosch most likely. The oem one is PWM so you'll be fine with it.

ChicksDigWagons · 04-24-2008, 08:57 PM

Liar, I don't ACTUALLY have any pics of the completed wheel...

I will get some after Ver.2!

The non-stepper Subaru IACs are no problem with MS. With the stepper motors I don't know if they can be made to work with the MS2 or not.

my01rs · 04-24-2008, 10:16 PM

Well who makes a custom wheel and fails to take a picture of it? You would be the correct answer

-

JWX · 04-25-2008, 09:21 AM

Quote:

Originally Posted by ChicksDigWagons

Liar, I don't ACTUALLY have any pics of the completed wheel...

I will get some after Ver.2!

The non-stepper Subaru IACs are no problem with MS. With the stepper motors I don't know if they can be made to work with the MS2 or not.

Which Subarus used a stepper motor?

danotakulus · 04-25-2008, 10:36 AM

it's nice to know that people are using megasquirt. I read a lot about it, and it sounds like some project.

ChicksDigWagons · 04-29-2008, 03:07 AM

Quote:

Originally Posted by JWX

Which Subarus used a stepper motor?

You know, I thought some of the newer ones did. But after looking a little closer it appears that people with newer subarus just don't know what they are talking about when discussing IAC.

Can't find any examples so scratch that previous comment.

As you can see, contrary to most folk on here my Subaru knowledge starts at about 1990 and ends at 2000. I like to limit myself to 10 years

my01rs · 04-29-2008, 09:25 AM

Just came to the realization I had the way wrong spark plug gap. Like close to .040 !! I just put in some new one step colder ngk coppers gapped to .028 and holy ****. I was being robbed.

JWX · 04-30-2008, 09:42 AM

Quote:

Originally Posted by ChicksDigWagons

You know, I thought some of the newer ones did. But after looking a little closer it appears that people with newer subarus just don't know what they are talking about when discussing IAC.

Can't find any examples so scratch that previous comment.

As you can see, contrary to most folk on here my Subaru knowledge starts at about 1990 and ends at 2000. I like to limit myself to 10 years

Yea, its not just the Subaru guys who like to throw that term around. I've heard pretty much any IACV called a stepper before.

Georgi.N · 02-01-2023, 05:00 PM

Can you send the .msq because i want to check some things with my 20K.

03-15-2008, 02:30 PM	#1
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	My Megasquirt success story Well I finally posted up my megasquirt success story so I thought I'd put the link here in case my fellow subaru enthusiasts ever search for info on MS. I don't surf here much but I've found a lil info here and there. I'm a rs25 guy. Enjoy for what it's worth. -Ian http://www.msruns.com/viewtopic.php?...st=0&sk=t&sd=a * Registered users of the site do not see these ads.

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03-15-2008, 03:03 PM	#2
Jaxx Scooby Guru Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Austin, Texas, USA Vehicle: The 93 W/EJ20K-sold Subaru-less :(	any picts of the crank pickup setup i am very curious what your map looks like

03-15-2008, 03:31 PM	#3
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	My buddy has the custom wheel pics. I'm going to compile all the pics and install info when I get a chance and update the success story until it's more of a diy guide.

03-15-2008, 06:31 PM	#4
JWX Scooby Specialist Member#: 28990 Join Date: Nov 2002 Chapter/Region: South East Location: RIP WJM.	Why not just use the stock IACV?

03-15-2008, 08:50 PM	#6
Jaxx Scooby Guru Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Austin, Texas, USA Vehicle: The 93 W/EJ20K-sold Subaru-less :(	will the ms drive the ej20k IAC

03-16-2008, 04:43 PM	#7
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	Yes if you add the pwm idle control circuit which I had to do.

03-16-2008, 05:26 PM	#8
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	Made a vid of my sequential led shift lights in action last night. Of course when i finally got to doing it, the first led doesn't come on. Any who, here's the vid. I'll take another when I fix the first led. The led that's missing is in the 6500 hash mark.

03-18-2008, 02:27 PM	#9
kgb Scooby Specialist Member#: 1366 Join Date: Apr 2000 Chapter/Region: VIC Location: Delta, BC, Canada Vehicle: 2000 RS-T -> RSTi-8 Blue Ridge Pearl	Coolness... working MS-I on a Subaru albeit with a standard trigger (24-1). Seems to be the easiest than to muck around with either 36-2-2-2 or 6/7 but since I need to run my stock ECU for OBD-II, I need to keep that trigger (I have 6/7). Had to goto MS2Extra because 6/7 required 2 hardware timers that is not available on the MS-I CPU even though I had code to support the trigger it's not going to be reliable. Still waiting for the GPIO board to make it a custom MS2Extra base board for pretty much a stock Subaru install (RS-T mind you on EJ251 no less - 10:1). You guys in Ontario or Quebec?

03-18-2008, 02:49 PM	#10
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	I'm in upper michigan

03-18-2008, 02:56 PM	#11
kgb Scooby Specialist Member#: 1366 Join Date: Apr 2000 Chapter/Region: VIC Location: Delta, BC, Canada Vehicle: 2000 RS-T -> RSTi-8 Blue Ridge Pearl	IC - does the EJ20K use side-fed or top-fed injectors? Are the 660cc some modified STi injectors?

03-18-2008, 05:11 PM	#12
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	They are old school sti side feeds

04-02-2008, 11:55 AM	#13
turboed22 Scooby Newbie Member#: 93364 Join Date: Aug 2005 Chapter/Region: RMIC Location: Arvada CO Vehicle: 1998 '98 Impreza RST '14 BRZ	thanks man!! I will be putting one in my car in a couple months and this info will be very helpful! So can you run a subaru IAC? Can I get some details on the IAC you are running?

04-02-2008, 01:51 PM	#14
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	You can use your oem iacv. I have an ej20k with the iacv in a stupid spot on the manifold. The oem placement does not allow the use of the usdm sti tmic. I used an in-line style iacv to remote mount it. Some german unit. Bosch most likely. The oem one is PWM so you'll be fine with it.

04-24-2008, 08:57 PM	#15
ChicksDigWagons Scooby Specialist Member#: 20508 Join Date: Jun 2002 Chapter/Region: MWSOC Location: Ishpeming, MI Vehicle: 1998 Red Wagon New Turbo Project...	Liar, I don't ACTUALLY have any pics of the completed wheel... I will get some after Ver.2! The non-stepper Subaru IACs are no problem with MS. With the stepper motors I don't know if they can be made to work with the MS2 or not.

04-24-2008, 10:16 PM	#16
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	Well who makes a custom wheel and fails to take a picture of it? You would be the correct answer -

04-25-2008, 10:36 AM	#18
danotakulus Scooby Newbie Member#: 167581 Join Date: Dec 2007 Chapter/Region: Tri-State Location: Central Jersey Vehicle: 1993 Impreza White	it's nice to know that people are using megasquirt. I read a lot about it, and it sounds like some project.

04-29-2008, 09:25 AM	#20
my01rs Scooby Newbie Member#: 135312 Join Date: Dec 2006 Location: land of the free Vehicle: 2004 Wrx Java	Just came to the realization I had the way wrong spark plug gap. Like close to .040 !! I just put in some new one step colder ngk coppers gapped to .028 and holy ****. I was being robbed.

02-01-2023, 05:00 PM	#22
Georgi.N Scooby Newbie Member#: 530354 Join Date: Jun 2022	Can you send the .msq because i want to check some things with my 20K.