Steve40th

I am running a 93LT1 engine, and am wondering if anyone knows the tables associated with a FORD 36# injector. Seems to be a mystery throughout the net as 36#'s arent that common, as opposed to 30/42 and 39's.

dan0617

I run a 6E ARAP based tune, but I don't think you need to adjust those tables unless you are having an issue. On mine, I set the values at 14.4 volts and 12.8 volts the same, so that if the battery fluctuates just a little, like a big electric fan while kicking on, it won't mess with adding or subtracting PW, but if the battery gets down below 12.8, it will start adding PW so that I won't be stranded due to a weak battery. Again, you could try this, or if you are having no issue, you could just leave it alone.

If you installed those injectors and are looking to adjust the tune for them, there is a place in the tune where you just enter in the size of the injector. Being that they are ford injectors, they will be more than 36 since ford rates them at less psi than we run.

Steve40th

Thanks Dan. Yes we are having problems but may have figured it out. I changed the fuel injector constant to 44.3, as if they were 42# ford injectors and the car runs now. So, two things happened, either my fuel pressure gauge of 15 years is off or my injectors were modified to flow more. I am betting that my gauge is off. I went from a factory pump to a walbro, and I bet the Walbro is making up for the weak factory pump (10 years old) and with the gauge being old , it was causing me and the tuner to think the injectors were larger, therefore we were trying to adjust the last part you adjust which is the pw vs battery.

Steve40th

UPDATE: One of my injectors was leaking under load. So, I found out why my engine was running so bad.
Now to find tables for the offset for 42# Green Tops from Ford

calebzman

iTrader: (3)

Ford 42lb injector data sheet

Found from: http://eectuning.org/forums/viewtopi...=15365&p=76388

Steve40th

Now I need to convert these numbers to work in my Tunercat.
Thanks

1tpi

[QUOTE=dan0617;4569713]I run a 6E ARAP based tune, but I don't think you need to adjust those tables unless you are having an issue. On mine, I set the values at 14.4 volts and 12.8 volts the same, so that if the battery fluctuates just a little, like a big electric fan while kicking on, it won't mess with adding or subtracting PW, but if the battery gets down below 12.8, it will start adding PW so that I won't be stranded due to a weak battery. Again, you could try this, or if you are having no issue, you could just leave it alone.

Does anyone else set the
values at 14.4 volts and 12.8 volts the same and does it work