Thread: Tuning 60 pound injectors

i just changed my time vs fuel folder, and my ltft are no where near the same, they went leaner now. across the board. that was the only change other then more timing.

I should have a wideband before messing with the WOT timing, correct?
When I do the WOT run there are no changes I need to make to the tables is there? Just do a 0-100 run or two on the scan.

when i first started out i had no wb, once i got one it was well within the safe range. so i say have at it. just be scanning and watching for kr, if you see it, get out of the gas asap.

im able to set up my gauge to change color when kr is active, anything under 2 flashes blue, any thing 2 or more is red. i see red im off the gas.

Ok I will try to follow the "starting hp tuners" guide for using the narrowband. Any other guides that you can think of or is that one pretty accurate to follow?

theres one in the drop box, garys or jerrys, one is dhp, the other hpt, not sure what one is what any more. been a long time since i read one.

i forgot, but i actually scaled the cells just like the stock file with the same count between cells. believe it or not the scans called for these settings.

check that somethings not hitting.

heres a good test. in park, rev the engine up, but not to the point its bouncing off the limiter, like right to it, while scanning for kr, if you get kr, the blower is fuked up. seen this happen to a local, no matter what i did he had kr, then found it had kr in park revving it. theres no load on the engine in park, so it should never have kr in park.

i took the belt off and the kr went away. he put a new blower on and we got him tuned up finally.

I tried the rpm in park and there was no knock. Tomorrow at some point I will get some scans

I recorded a scan and noticed that the injector duty cycle is going through the roof. Maybe my injectors are not set correct. I had them scaled 20 percent above stock and that worked with the old tune but not this one. So maybe I need to go back to the beginning and scale the injectors for what they are and then do the LTFT adjustments??? What do you all think?





https://www.dropbox.com/s/ole40vksvv...0crap.hpl?dl=0

Idc on 04+ cars is not accurate. You have to watch the Afr and fuel pressure to see if you are leaning out.

Originally Posted by SgtMarshal

setting your injector flow rate should be a one time adjustment.

i don't think I set them correctly to begin with. I only went 20% above stock to get the trims close because I didn't know what I was doing (still don't). So I am thinking of changing the injectors by how much the size change was and starting over. 60/36 and scale them 66% bigger than stock so multiply the stock table by 1.66.

I think that I will replace the fuel filter also. Maybe it clogged??

Ok now I'm really confused. Those are set at 22 across the board. my stock start at 29 and the 60# higher. I thought the bigger the injectors the higher the number.

these are my stock settings.

same with dhp, larger injectors, = a smaller value.

I'm really confused as to what your ifr table is actually set at. But, if you are on e85 with 60lb injectors, it should be something like this.


04+ cars are not mapped correctly, so this table is not completely accurate. But I've used it with success.