Thread: AFR and Timing Tuning (02 Regal GS 223k!!!)

Originally Posted by darkhorizon

Stock injectors are 33.7# and yours are 41.5#... Math says how much bigger the bigger ones are.

Stock vs 42 (mine)

What are you saying divide 33.7 by 41.5? Then x by that value

Originally Posted by darkhorizon

Looks good.

As in leave it alone?

Originally Posted by darkhorizon

its good for a base.

For better mpg's is there anything here that should be touched? As I am catless.

Gains for MPG is 100% done in the timing table on these cars. And your right foot.

Most will increase the timing during "cruise" parts of the table to help get an extra 1-2 mpgs on the freeway.

I took a 2004 GTP file and ninja rigged it with my 00 GTP file. The 04+ cars got a more aggressive timing map than the older years, pretty much just have to combine them and make it nice.

Meh, I have everything cat converter related shut off.

Originally Posted by darkhorizon

Wrong. Tons of real mpg is gained by disabling cat warmup... close guess with the overtemp its usually a good idea to set those numbers to 11.00 because you should never hit those and if you did it would effect wot too.

Is that the correct temp?

Would putting all of that at 11.0 make it run rich in general? How does making it all 11.0 instantly net better mpg's?

Look at what the table is for, its only for "cat overtemp protection".

Thus the only time it will ever go to a commanded AFR of 11 (if set to it) is when the coolant temp is above 240º.

There's probably some other "hidden" feature that only darkhorizon knows about ffdp. But in all seriousness max out that temp for cot. Set Afr to what your p.e is set at and leave alone. I would completely agree with ffdp. Timing in cruise areas is very important and can net you 1-2 mpg more.