Holley tuning

Timjus · May 17, 2017

kody29 said:
no lmao ill get all the info for you tonight buy can you text then?

yep here

kody29 · May 17, 2017

Timjus said:
yep here

ok ill get info tonight thanks for help

kody29 · May 17, 2017

Timjus said:
your system is? holley dominator system with injectors in each runner 68lb
o2 boch or ntk? 02 boch
open headers? no shorty's to full exhaust
afr when it starts to load.
how much correction in learn table after it has died
have you tranfered the learn map to base
is the learn on and reaching temp to start learning
tuned accel enricments

a few answers

Rockwells607 · May 17, 2017

Yes I meant main header tube right off the head . It only gets a reading from one cylinder but seems to fix the issue of a wrong reading with open headers .

muddinmetal · May 17, 2017

The problem is that an o2 sensor really needs a decent length of pipe after it. This is why they NEVER act right at the collector that is immediately open to the atmosphere. Putting it in one pipe although not idea keeps the outside air from affecting the reading

poolman · May 17, 2017

muddinmetal said:
The problem is that an o2 sensor really needs a decent length of pipe after it. This is why they NEVER act right at the collector that is immediately open to the atmosphere. Putting it in one pipe although not idea keeps the outside air from affecting the reading

X1000!!!!! Ask me how I know, and everyone else that I ride with has had that problem. Halcat told us about the NKG o2, best money spent for my fast system.

nhl_bullitt · May 17, 2017

Running an o2 using a single primary is very interesting news. I did not realize that was an option, but is good to know. I will be running a different motor and fuel injection system soon so this may be useful.

Rockwells607 · May 18, 2017

No company will tell you to set it up that way however it seems to be working with most guys and aftermarket efi systems . I'm CHanging mine this week

Timjus · May 18, 2017

in the holley system you can limit when closed loop and learn works. for open header ones you could limit it out of low rpms and tune the area By hand and let closed loop and learn kick back at higer rpm.

here is the best Place to ask and read about holley efi if you want answers fast http://www.yellowbullet.com/forum/forumdisplay.php?f=29

tips/tuning stuff mostly for holley terminator/sniper and fi tech http://www.chevelles.com/forums/89-efi/