I installed a cam last week "cammotion 223/218 .576/.564 115+4" and i almost got it tuned.. It idles fine when i crank it up but, when i come to a stop from cruising it wants to stall.. I got my idle set at 650 rpm.. I'm using HP Tuners to tune it with..

 

FWIW IMO might try and bump up the RAF some?

 

What does RAF stand for?

 

Required Air Flow

Should be a table for park/neutral and another for in gear

 

I'm having the same issue...

https://www.performancetrucks.net/fo...d.php?t=365538

 

ok, both of you try this, post 18

https://www.performancetrucks.net/fo...11#post3333111

Chris, yours should be the same as I described cuz your using EFIlive, and Speedy, yours should be similar, I'm not a 100% sure how HPT does this, but should be close.

 

Badass Kyle, that's exactly the info I was looking for. I'll give it a shot and let you know how it works.

Thanks!!



It's post 12 BTW, not 18....

 

Oops....

 

Bingo! Did what you said and it's doing great now!


Got my avg RAFIG down to like 0.06 g/sec and my avg RAFPN to 0 exactly after idling for 4-5 minutes each in park and in gear. Drives like a charm now! They were both maxed at 1.50 when I started, hence my problems.


Idle is set at 725 RPM. I get a slight drop when I shift from P to D since it kicks into gear right away, no drop when I go from P to R because there is the 1-second delay before it drops into gear and the IAC has time to compensate.

The bouncing RPM when coasting slow in N is gone too. Sticks right around 725.

BTW...I went from mid-upper 7s in the In Gear desired airflow to 12's. Big jump

This Nick Williams TB is damn noisy too when I'm idling in gear. I can hear it inside the cab with windows up and music down low. I guess you can really say my truck sucks now

 

Better than "blowing" and not good as being "blown" !