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xhemidriver · 04-19-2008, 09:53 AM

I am bord now and my mind is racing with things we did to make our hemis faster. YOU ALL want a programer right???? Forget that, all a programer is going to do is change timing an fuel a little. Go buy an $40 A/F gauge and buy a male and female connetor for your air sensor. Make a plug in adapter with some wire and the conectores and buy a reostate at radio shack. Now you can change the reading that the ecm is getting reguaridng air density. Dial in the reo using the A/F guage until you get around a 12.8 to 13.3 ratio AT WOT NOT IDLE. (Lean but still on the safe side) The ECM will think its 10* outside all the time with really dense cold air and compensate by adding a little more fuel. Now you have a programmer that is adjustable on the fly by the twist of a dail, that you can remove in 2 min when you have to take a trip to the steelership. I havn't seen what the factory a/f is but I am sure it's around 15.5-16 (a little rich) at idle and 14-14.5 at wot.

At the track "Lean = Fast"

If you want a little more power disconnet the o2 snesors. (THIS WILL THOW A CODE and pop the idiot light on) However it will richen the fuel mixture even further. Now use the Reo to retune. The two of these together might be good for 25whp.

04-19-2008, 09:53 AM	#12 (permalink)
xhemidriver Junior Member Join Date: Apr 2008 Posts: 7	I am bord now and my mind is racing with things we did to make our hemis faster. YOU ALL want a programer right???? Forget that, all a programer is going to do is change timing an fuel a little. Go buy an $40 A/F gauge and buy a male and female connetor for your air sensor. Make a plug in adapter with some wire and the conectores and buy a reostate at radio shack. Now you can change the reading that the ecm is getting reguaridng air density. Dial in the reo using the A/F guage until you get around a 12.8 to 13.3 ratio AT WOT NOT IDLE. (Lean but still on the safe side) The ECM will think its 10* outside all the time with really dense cold air and compensate by adding a little more fuel. Now you have a programmer that is adjustable on the fly by the twist of a dail, that you can remove in 2 min when you have to take a trip to the steelership. I havn't seen what the factory a/f is but I am sure it's around 15.5-16 (a little rich) at idle and 14-14.5 at wot. At the track "Lean = Fast" If you want a little more power disconnet the o2 snesors. (THIS WILL THOW A CODE and pop the idiot light on) However it will richen the fuel mixture even further. Now use the Reo to retune. The two of these together might be good for 25whp. Last edited by xhemidriver : 04-19-2008 at 10:00 AM.