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

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

What's your setup, I will take a look at a few bins I have now that I am home.

det/z32maf/msd72lb/b14

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?)

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.

I really hope you get this figured out man you have a little beasty setup.

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

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