T3 megasquirt II conversion

Moderator: Tom Notch

User avatar
Corysvdub
Posts: 219
Joined: Fri Feb 03, 2012 11:05 pm
Location: San Pedro, CA

Re: T3 megasquirt II conversion

Post by Corysvdub » Thu Feb 27, 2014 12:13 am

Then what are you using for ignition since you pulled the distributor and the drive gear?
Type 3 Subaru powered EJ25

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Thu Feb 27, 2014 1:12 am

I'm using a 36-1 trigger-wheel, VR sensor and an IGN4 in wasted-spark configuration.

Go back to page 23 for pictures.

Max

User avatar
Corysvdub
Posts: 219
Joined: Fri Feb 03, 2012 11:05 pm
Location: San Pedro, CA

Re: T3 megasquirt II conversion

Post by Corysvdub » Thu Feb 27, 2014 1:35 pm

Oh, ya I forgot about that
Type 3 Subaru powered EJ25

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Sat Mar 29, 2014 10:45 am

Interesting zoomed-out mlv screen-shot. This shows my 32 minute commute home yesterday.

Covers a altitude change from 6000'-7500'. You can clearly see the change in Baro correction.

CLT is basically head-temp.

http://www.maxwelton2k.net/squareback68/MST3/mlv.jpg

Max

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Tue Aug 05, 2014 10:25 pm

Changed out the plugs tonight. It was clearly time. These are NGK D6EAs after a few 12 month years of daily driving.

Large image warning:

http://www.maxwelton2k.net/squareback68 ... G_8264.jpg

So I got a dumb question. The new plugs did not come with these ... whatever they're called. The MSD wires I'm using need them and I'm building a new engine that may as well.

I can't remember where I got them. :oops:

And what the heck are they called?

Image

Max

User avatar
trbugman
Posts: 119
Joined: Mon Apr 01, 2002 3:01 am
Location: SoCal

Re: T3 megasquirt II conversion

Post by trbugman » Tue Aug 05, 2014 11:22 pm

2333(103x70) Type 4 DTM MS3+X on 73 Karmann Ghia ignition only with LS2 truck coils firing in sequential, fuel next.

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Tue Aug 05, 2014 11:58 pm

Perfect. Thanks!

Max

Steve Arndt
Posts: 7185
Joined: Sat Mar 10, 2001 3:01 am
Location: Go Boise State, ID
Contact:

Re: T3 megasquirt II conversion

Post by Steve Arndt » Wed Aug 06, 2014 12:38 am

spark plug nipple is my wording

User avatar
Piledriver
Moderator
Posts: 21718
Joined: Sat Feb 16, 2002 3:01 am
Location: Van Alstyne, Texas

Re: T3 megasquirt II conversion

Post by Piledriver » Wed Aug 06, 2014 2:28 am

I have been running the same set of iridium plugs since I got my MS run 1.8L started... ages ago and pushing 60K, now.
I pulled them out a few times but they show ~zero wear, and it runs as well (better, with learning how to tune it + eventually going MS3/3X) as the day they were installed.

It's actually been a year+ since I looked at them, almost afraid to pull them out, not sure if I used the Milk Of Magnesia on the threads last time... Engine still pulls 19:1 AFR all day long at cruise.

Worth the extra ~$3 each IMHO.
I, for one, regularly embrace our new robot overlords, as I am the guy fixing the robots...

User avatar
akokarski
Posts: 73
Joined: Fri Mar 31, 2006 2:17 pm

Re: T3 megasquirt II conversion

Post by akokarski » Mon Oct 24, 2016 11:39 am

Hi Max,

a few questions on your original triggering method.

You were using 009 with locked advance or was it off the coil? was that enough to tell ms to control injectors or was there something else?

Can we use l-jet injectors with stock intake and hardware to avoid having to build fuel rails and utilize better still available connectors?

Thanks,
Anton

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Mon Oct 24, 2016 9:12 pm

Originally I was using a stock type-3 distributor and using the - coil for the tach signal. I was just controlling fuel with MS at that time.

Now I'm using a 36-1 trigger-wheel on the fan, VR sensor and an IGN4 in wasted-spark configuration. Go back to page 23 for pictures.

As far as the injectors, I suppose you could use OG style injectors. But making fuel rails was dead simple so why not use modern injectors.

Max

User avatar
panel
Posts: 3606
Joined: Sun Sep 24, 2000 2:01 am
Location: Victoria B.C. Canada
Contact:

Re: T3 megasquirt II conversion

Post by panel » Mon Oct 24, 2016 10:03 pm

Max and Pile , are you guys not running the 'R' (resistor) plugs?

User avatar
Max Welton
Posts: 2436
Joined: Mon Jun 03, 2002 2:01 am
Location: Black Forest, Colorado
Contact:

Re: T3 megasquirt II conversion

Post by Max Welton » Mon Oct 24, 2016 10:37 pm

NGK D8EAs here.

Max

User avatar
akokarski
Posts: 73
Joined: Fri Mar 31, 2006 2:17 pm

Re: T3 megasquirt II conversion

Post by akokarski » Mon Oct 24, 2016 11:11 pm

Thanks!

I was mentioning l-jet as those would seem to be plug and play with respect to existing hardware but with way better, locking connector. I see folks mention those injectors as an upgrade for bigger t3 engines as they flow a bit more.

I am trying to thing of a setup that would be as much of a drop in as possible and maybe even look stock.

Anton

User avatar
gtmdriver
Posts: 103
Joined: Mon May 21, 2012 3:38 am

Re: T3 megasquirt II conversion

Post by gtmdriver » Tue Oct 25, 2016 1:39 am

Resistor plugs and good leads are recommended as unsuppressed HT spikes can affect any ecu but lots of people get away without them.

I run resistor plugs and Magnecor leads to be on the safe side.

Post Reply