I am trying to get an idea of what kinda A/F i should looking for in my lower RPM range. Off idle and up in to the 2500 rpm range? Should i be trying to have a A/F of the same number clear threw the whole RPM range. I have a A/F of 12.0 from around 3200 clear tell 5500 stays right around 12.0. Now i am wondering if that is what kinda A/F i should be trying to keep in the lower RPMs. Any input here guys

 

Your air fuel is just fine, at 5500 rpm my air fuel is 11.7, try not to let it get over 12.0 and you will be safe.

Larry.

 

Now what about off idle up to 3200rpms should i have a A/F of 12.0 in the low to mid range or should it be richer or leaner? OR should i try to have my tuner maintain a 12.0 A/F clear threw all the RPMS. say off idle to 5500 rpms

 

Reason i ask is because at idle its 13.5 or so and as you slowly climb into the RPMS it adds fuel at around 3200 is where i see a 12.0 A/F and stays that untell i shut it down at 5500. I was just wondering if this is something i should be concern about or not. Just try to find out if i should add a point of fuel in the idle to 3200 rpm range is all or is it good at where its at.

I am wondering if i would gain anything if my A/F was 12.0 from off idle clear threw the RPMS or not

 

The PCM leans the crap out of it when cruising or idling mostly for Emissions reasons. Look at mine, it is like 15 then drops down to where it should be.

 

When you first open the throttle it will lean out a little and then come down were it should be, its normal.

Larry.

 

It's nomal to real rich down low. Off idle the computer tries to maintain Stoich which is something like 14.7. Not exactly sure though.

 

You mean run real lean down low.

--Joe

 

Good catch soap. Yes real lean.

Thanks