Tuning big injectors - Page 2 - Competition Diesel.Com

Rhett24 · 02-23-2015, 08:51 PM

I have lowered my duration across the lower rpm, load range. Increased my pressure to atomize fuel more efficiently and decreased timing to spool my turbo better. Does this sound about right to yall? Also if i bump up my charger from my s366 to an s475 what should i be doing in my tune to accommodate for the larger turbo?

fatgraderman · 02-23-2015, 11:09 PM

Does bringing a little extra rail pressure earlier help clean things up as well?

2007 5.9 · 02-24-2015, 04:09 AM

Quote:

Originally Posted by fatgraderman

Does bringing a little extra rail pressure earlier help clean things up as well?

Raised pressure increases injection rate, allowing you to lower the pulse and start to clean things up.

You'll need to balance the rail and pulse accordingly so you don't go to far and make it worse.

Rhett24 · 02-24-2015, 07:12 AM

Quote:

Originally Posted by 2007 5.9

Raised pressure increases injection rate, allowing you to lower the pulse and start to clean things up.

You'll need to balance the rail and pulse accordingly so you don't go to far and make it worse.

How do you balance that?

copenglenn · 02-24-2015, 07:23 AM

Bring down the pulse as you add pressure to help keep it clean.

2007 5.9 · 02-24-2015, 02:41 PM

Quote:

Originally Posted by copenglenn

Bring down the pulse as you add pressure to help keep it clean.

Precisely, thanks for that.

02-24-2015, 07:23 AM	#25
copenglenn Name: copenglenn Title: It's beer 30 Status: Not Here Join Date: Feb 2009 Location: E. Kansas Member`s Gallery Posts: 568	Bring down the pulse as you add pressure to help keep it clean. __________________ 04 LLY, MGD 45 overs, Aeromotive 160, EFI, ARP's, Southbend sintered iron 02 24V Aeromotive 160, Contagious 7x.011, comp box, and some Suncoast goodies

02-23-2015, 08:51 PM	#21
Rhett24 Name: Rhett24 Title: Diesel Enthusiast Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 109	I have lowered my duration across the lower rpm, load range. Increased my pressure to atomize fuel more efficiently and decreased timing to spool my turbo better. Does this sound about right to yall? Also if i bump up my charger from my s366 to an s475 what should i be doing in my tune to accommodate for the larger turbo?

02-23-2015, 11:09 PM	#22
fatgraderman Name: fatgraderman Title: Diesel Enthusiast Status: Not Here Join Date: Oct 2013 Location: Innisfail AB Member`s Gallery Posts: 170	Does bringing a little extra rail pressure earlier help clean things up as well?