Fueling & Injection - Speed Density vs. Mass Air

Back in the day, everyone who had speed density was saving up for a mass air conversion. These days, almost everyone I see on HPT is deleting their MAF and raving about SD. I am experimenting with SD as a lock in my VE table, and have to say the truck absolutely runs better -- better throttle response, smoother idle, better SOTP...

What in the heck happened? Are the new computers somehow making MA worse than SD?

If I go down this road as a permanent change, what I am giving up (besides the 'self correction' of having a MAF -- which to me appears to be obfuscation of whats really happening on these new computers...) I know I'd need to relocate the IAT sensor, but I want to do that anyway.

the gm computer is different than the ford computer in the way it works, ford the maf controls fueling, and load directly,

where the gm computer does not work like that.

on a ford eec, i would never even consider converting to speed density.

on the gm side, i personally would never do it either, but it seems to work wellto the way the ve table works

Ryan

Ah, that does explain things a bit... 'Back in the day' I was a 5.0 head :)

Thanks Ryan.