I remember reading Parish had his MAF maxed out at 60.01. Does anyone know a way around this in tuning?

 

i think you can change the scale so it shows more air but i dont think it actualy reads any more air. you can add fuel just with the PE vs rpm though, that is what i am going to do.

seth at cmotorsports told me a prety easy rule of thumb fueling, once the maf flatlines you need to add 3% fuel at each rpm point above that.

so if it maxes at 5000rpm you will want to add 3%fuel with the pe vs rpm chart at 5000rpm, then at 5400 add 3% to the previous number, then at 5800, add 3% to the previous number. sounds simple enuff to me. going to try it on friday i think.

 

Out of sheer curosity, why not set the VE down low in the RPM range and scale it all the way through...not just when the MAF is maxed?

Or would that have an adverse effect on the MAF function?

 

i dont know what you just said.

i am talking about adding fuel based solely on rpm, it is easy to do in the power enrichment section.

 

LOL, it's hard to explain what I'm thinking a lot. Also I missed the PE for VE also. hahaha

Like can you add fuel based on RPM alone from idle to 7000rpm (or whatever your max RPM is)? Basically you'd be going speed density I'd think that way.

 

it isn't speed density becasue your pcm can't see boost and you are past the max airflow it can see.

do you have a wideband? i dont think you need to worry about it just yet, you can hit 60.01 for awhile and nut run lean. i think i hit it at 5500 rpm and caried it to 6250 and my a/f ratio went from 12-1 up to 12.5-1, not the end of the world you see.

 

I think what Parish was saying is in the PE tables (WOT throttle) you can add fuel where the MAF maxes at .. say it's maxing at 5k rpms, so add fuel at WOT from 5k up.

Parish ... it isn't a problem right now, but I'm still running a small cam and ONLY 7psi ... if you know what i mean ......

From what your saying though ... it sounds like it isn't going to be as big a problem as I thought it would be.