Cured ping issue on 09 Ram Hemi!!!

[M15]

All I did was add more fuel. 7.5% to be exact. No more ping and it pulls alot harder now too!

[FAhemiST]

wow, that seems like a lot of fuel. where in the rpm range did you need it?

[mikel]

Good move. 7.5% is not a lot of fuel to add...

[M15]

Thanks. I added fuel to all rpms. And Mikel is right,Its not a lot more fuel. Havent even noticed a difference in fuel consumtion yet. Hey Mikel any estimate to where my air/fuel ratio is at? Ideally I would like to be between 12.5:1 to 12.9:1 Thanks.

[09Laramie]

All I did was add more fuel. 7.5% to be exact. No more ping and it pulls alot harder now too!

good info- is that on the 93 tune or the 87?

[M15]

Its on the 93 tune with 2 degrees taken out cause I only can get 91 pump gas here.

[mikel]

Thanks. I added fuel to all rpms. And Mikel is right,Its not a lot more fuel. Havent even noticed a difference in fuel consumtion yet. Hey Mikel any estimate to where my air/fuel ratio is at? Ideally I would like to be between 12.5:1 to 12.9:1 Thanks.

We usually set the tunes in the low 12:1 range, and with the extra fuel you're prolly close to 12:1 at WOT.

We have dyno'd as many HEMIs as anyone, and have found they do not like to make best power in the high 12s, thus we tune them for about 12.3:1.

Thanks
Mike

[sbarbs]

Sounds good. I just loaded the 93 tune myself. I added 5% fuel as well. Still some pinging. I registered at the highest 4Degrees S-T knock. Not to bad. It seems it happens the most when pulling hard in a higher gear and stomping on the throttle in a down shift. Anyone else with this problem? I'm gonna try adding more fuel as well. I have 93 octane in it with an octane additive as well. I suspect it should be at least 95-97 octane.

[M15]

If your going to use octane booster I highly recomend Lucas octane booster. I had 1.5 bottles in my tank when racing and never pingged once. And that was without adding any fuel on the programmer.

[concoursd]

4 degrees is not bad, especially at higher load (lugging) situations. hemis are just really sensitive.

[sbarbs]

I am using Lucas additive. I'm gonna try adding a little more fuel to all RPM's and possibly pulling a little timing. Hopefully that will do the trick.

[mauri_oreilly]

hey how you do the 93 tune with 2 degrees taken out ???

and how you add more fuel. 7.5%????

could you explain me because im new on this

thanks.

[hjanaya]

same questions pretty new to this.. how do you add 7.5% more fuel? is it the throttle calibration?

[DGatzby1]

um, was thinking; 93 Octane tune - 2 degrees of timing = 91 Octane tune ??

Glad you found the right combination for your car....but some math for discussion!

[Oosik]

M15 ended up selling the tuner, the knock came back. He mentions it on dodgeforums.com