4.8,GT45,ss2 cam,80ib decaps,ls9 head gasket, walbro 450 pump stock regulator
I know my tune is way off. IM studying several post to learn. My truck will idle really low in drive gear. I have to peddle it to keep it from dying out. Along with stumble if i do not assist or gear it down to 2nd or 3rd to keep the rpm range high. I couldn't build boost until i realized i needed to mess with delta airflow a few hours ago lol. all help is appreciated.
Attachment 142957
What data do you have for the injectors?
I also doubt a stock fuel pressure regulator can hold back the fuel flow of a 450 pump too.
Needs real injectors, a real pressure regulator and more info about parts used plus the tune file. Also the data log is lacking critical data.
No knock retard, no wideband data, no injector information. Has the wrong MAP channel being logged. We also don't know what MAP you are running.
thanks for the reply. Do you have any recommendations of budget injectors? i have a wideband in the truck. I just have to learn how to set it up with hp tuners. i have a 3 bar map sensor from summit racing. DO you recommend a better source for one? My injectors are a batch of flow matched set of 8 but I've honestly had them on shelf for around a year lol.
My vote is Deka 80's.
https://turbo4less.com/product/sieme...or-set-for-v8/
If you want shorter there are other models:
https://www.siemensdekafuelinjectors...mens-deka-vdo/
thanks for your help. Looks like i need to get some quality injectors and figure out adding more data.