As a side note, I personally use an air flow speed controller and a small air pressure regulator in series between my boost reference and my afc. This is a very cheap way of a diy in cab tuner. The speed controller valve adjusts your preboost fuel timing; smoke screw, and the pressure regulator controls the afc travel for total overall fueling. Once you setup the AFC once with this, you can tune easily in the cab with the touch of a knob instead of
You are the man Logan! You are helping a lot of DIY home budget guys! Applying your concepts has grown my racing confidence within my own build. As many of your other videos have taught me, even this one although talking about ppump tuning, your discussion on afr and egts applies across the board regardless of engine. Grateful that you share this information, keep it up 💪
You can weld up the afc foot ti cut even more rack out of it. Also you can adjust the lever on the gov that hits the afc foot so it contacts at the bottom of the afc foot then taper grind the afc towards the top so as the rpm comes up the fuel increases as well. You can use a hook shaped fuel plate to do similar just knocking the bottom out of it. because you never need big fueling below 3k with your setup.
Keep in mind, on almost all ppump setups, you want as violent and fast as possible injection events for clean and efficient burning of fuel. Yes you can extend the rack travel, adjust the fuel plate etc, but those mods will generally increase the injection events duration which can cause issues like spraying fuel out of the bowl, or unburnt fuel. Get yourself timing dialed in as best as possible to keep your fuel in the bowl and use as short id an injection events as possible.
@@pittsmotorsports9806 timing definitely effects spool up. I ran 38* of timing which definitely isn’t helping spool up but where it needed to be down track so it just was what it was for spool up
@LoganbuiltRaceShop 38* Holly smokes that thing is crazy. I have a 215 pump with compounds 60 over 80 with ddp 100hp injectors. What timing would you recommend? Do you have a video on timing?
@@pittsmotorsports9806 I don’t have a video on timing. Wouldn’t be a bad idea though. I’d need to know the spray angle of the injectors, the line size & the piston bowl design to answer that better
If you watch the last video & the “I bought a huge turbo” video I go over all the specs & reasoning for the change. The old turbo was an 88/103. This one is a 98/108. I use racepak data logging.
As a side note, I personally use an air flow speed controller and a small air pressure regulator in series between my boost reference and my afc.
This is a very cheap way of a diy in cab tuner. The speed controller valve adjusts your preboost fuel timing; smoke screw, and the pressure regulator controls the afc travel for total overall fueling. Once you setup the AFC once with this, you can tune easily in the cab with the touch of a knob instead of
You are the man Logan! You are helping a lot of DIY home budget guys! Applying your concepts has grown my racing confidence within my own build. As many of your other videos have taught me, even this one although talking about ppump tuning, your discussion on afr and egts applies across the board regardless of engine. Grateful that you share this information, keep it up 💪
Thank you very much for this comment!!
You can weld up the afc foot ti cut even more rack out of it. Also you can adjust the lever on the gov that hits the afc foot so it contacts at the bottom of the afc foot then taper grind the afc towards the top so as the rpm comes up the fuel increases as well. You can use a hook shaped fuel plate to do similar just knocking the bottom out of it. because you never need big fueling below 3k with your setup.
Great explanation of tuning the afc. Thank you.
Keep in mind, on almost all ppump setups, you want as violent and fast as possible injection events for clean and efficient burning of fuel. Yes you can extend the rack travel, adjust the fuel plate etc, but those mods will generally increase the injection events duration which can cause issues like spraying fuel out of the bowl, or unburnt fuel.
Get yourself timing dialed in as best as possible to keep your fuel in the bowl and use as short id an injection events as possible.
Logan, this is the most indepth afc tuning video ive seen...mine wasnt even this indepth!!! Awesome Video!!
Thank you! The AFR data should be able to help some ppl!
I got a question could any of this tuning Apple to a stanadyne db2??
Awesome video super helpful
Can you run a afr by itself or does it need to run to a logger or ecu of some sort.
I’ve not looked into stand alone wide bands but I’m sure there is some option out there for that
@@LoganbuiltRaceShop I know aem makes a afr gauge but not completely sure if that would work as a standalone seems like you need a ecu.
What about timing how does this effect everything? What do you run yours at?
@@pittsmotorsports9806 timing definitely effects spool up. I ran 38* of timing which definitely isn’t helping spool up but where it needed to be down track so it just was what it was for spool up
@LoganbuiltRaceShop 38* Holly smokes that thing is crazy. I have a 215 pump with compounds 60 over 80 with ddp 100hp injectors. What timing would you recommend? Do you have a video on timing?
@@pittsmotorsports9806 I don’t have a video on timing. Wouldn’t be a bad idea though. I’d need to know the spray angle of the injectors, the line size & the piston bowl design to answer that better
@LoganbuiltRaceShop angel of injectors not sure, line size stock, piston is molly power piston big bolw.
@@pittsmotorsports9806 would definitely need to know the injector spray angle
What do you use for data logging? And wants the old vs new turbo specs?
If you watch the last video & the
“I bought a huge turbo” video I go over all the specs & reasoning for the change. The old turbo was an 88/103. This one is a 98/108. I use racepak data logging.
Lean for turbo spool? Why not more heat being rich?
EGT goes down when fuel is added and spool up slows as well. Lean is mean!