Search found 24 matches

by ilostmymindcom
Tue Jun 12, 2012 8:20 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

I had the wrong intake manifold gasket.
It had a leak on all 4 cylinders. It is amazing it pulled as much vacuum as it did.
Now I am running well under 1000* at idle.
The factory ecu ran about 750-800*, I am at about 850-900* now. It gets hotter with higher vacuum, but it is reasonable now and seems ...
by ilostmymindcom
Sun Jun 10, 2012 1:41 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

Last night I took a good running stock ecu and wiring harness and sensors and put it on my motor. It would not hardly start.
I believe my problem is not with the ecu.
I have replaced cams, cam gears, triple checked mechanical timing, tested compression several times. I don't know what is left. :x
by ilostmymindcom
Wed Jun 06, 2012 9:06 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

Updates:
Installed 24-1 cam wheel, if I enable sequential in project properties, I cannot change CPU type to microsquirt.
Without sequential enabled, I can see my inj pulse offset on the cas signal on the scope (I'm starting to get the hang of it.) when I change injector timing angle.
However, I ...
by ilostmymindcom
Mon Jun 04, 2012 6:41 am
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

...
I changed it to 4/alternating squirts and now I hear/feel a difference when 1/2/3/4 plug wires are disconnected, but still ~1300*F (700c) EGT at ~800rpm idle....
This has the same results. I set the tune to crank wheel, and adjusted my offset (since both are 7.5 teeth btdcc1) still ~1300*F ...
by ilostmymindcom
Sun Jun 03, 2012 12:34 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

Wondering if maybe my turbine housing was causing excessive back pressure, I opened up the header.....
http://www.youtube.com/watch?v=7-hSda3waBI
same results. EGT is higher because of the revs, but not by much.
by ilostmymindcom
Sun Jun 03, 2012 12:06 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt v3 timing/fuel issues.

Alright, Here's what we have today.
I changed it to 4/alternating squirts and now I hear/feel a difference when 1/2/3/4 plug wires are disconnected, but still ~1300*F (700c) EGT at ~800rpm idle.
So, I figured maybe I should get creative/simplified. I took another cam wheel and effectively made it ...
by ilostmymindcom
Sat Jun 02, 2012 5:23 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt timing issues.

Just to entertain myself (in hopes of success), I wired the injectors up as bank 1 (1+2) bank 2 (3+4)... no good.
I tore the top of the motor open and verified mechanical timing, the cams are in sync with the crank, I have tdcc1 (top dead center compression #1) correct.
The cas can adjust ~50* of ...
by ilostmymindcom
Sat Jun 02, 2012 9:12 am
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt timing issues.

Not to try and sound like I know what I am doing, but this is what I get on the scope:
Inj 1 w/cam signal:
http://ilostmymind.com/upload/inj1.gif
inj 2 w/cam signal:
http://ilostmymind.com/upload/inj2.gif
ignout1 w/cam signal:
http://ilostmymind.com/upload/ignout1.gif
Ignout2 w/ cam signal ...
by ilostmymindcom
Fri Jun 01, 2012 7:05 pm
Forum: Ignition Setup, Tuning, and Troubleshooting
Topic: Microsquirt v3 timing/fuel issues.
Replies: 22
Views: 2601

Re: Microsquirt timing issues.

Well, here is my NEW problem, or results.
With Inj 1 going to 1+4, and spark 1 going to 1+4, if you disconnect cylinder 2 or 3 plug wire or injector, it doesn't stumble, it runs the same.
If inj 1 is going to 2+3 and spark 2 going to 2+3, if you disconnect cylinder 1 or 4 plug wire or injector, it ...