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Thread: MSD 72lb injector help. -- Injectors bad or tune?

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Posts: 31-40 of 50
2013-05-13 22:05:18
#31
Hold the press. The rochester 72lb is the one you want. Not msd 71lb. Take a look at the Rochester 72lb on the chart. Note the latency at 12v. .87 is what is listed.
2013-05-13 22:40:06
#32
Originally Posted by ebinkerd
Hold the press. The rochester 72lb is the one you want. Not msd 71lb. Take a look at the Rochester 72lb on the chart. Note the latency at 12v. .87 is what is listed.


I think the 71lb is just a misprint as MSD doesn't make a 71lb injector and the ohms indicated for it are 2ohms which is correct. Even if I went w/.87 that's still higher than the .55 I was running...makes me confused about how all this works. Supposedly going up in #s makes it richer, not leaner.

What I need are values from someone w/this tune that has good idle.

-G
Last edited by gomba on 2013-05-13 at 23-31-23.
2013-05-13 23:17:25
#33
MSD 72lb injector help. -- Injectors bad or tune?
What's your setup, I will take a look at a few bins I have now that I am home.
2013-05-13 23:30:48
#34
Originally Posted by ebinkerd
What's your setup, I will take a look at a few bins I have now that I am home.


det/z32maf/msd72lb/b14
2013-05-13 23:34:16
#35
The bin I have shows a k value of 218 with a latency of .52. This is all on 3 bar.I can post the bin if you want.
2013-05-14 00:21:21
#36
Originally Posted by ebinkerd
The bin I have shows a k value of 218 with a latency of .52. This is all on 3 bar.I can post the bin if you want.


is it the Calum base tune (CJJ?)
2013-05-14 00:33:54
#37
That would be the one I have as well. One thing I did notice, the injector scaling constant is set to 550cc in the 72lb bin. Changing that to 756 may correct the issue.
Last edited by ebinkerd on 2013-05-14 at 00-37-17.
2013-05-14 00:49:53
#38
I really hope you get this figured out man you have a little beasty setup.
2013-05-17 05:50:47
#39
Got car running again. Idles really lean and sometimes doesn't want to start. I think it's just tuning stuff. Gotta figure it out.

-G
2013-05-18 04:31:47
#40
slowly getting the tune worked out. I'm going to upload it to the forums as soon as I get it pretty solid. The Calum base tune is waaayyy off from where it should be.

-G
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