Over in the PCM department. MAFLESS TUNING???? Parish8 may be interested...
Maybe Neslon can contribute?

https://ls1tech.com/forums/showthrea...6&page=1&pp=40

 

I think deezel needs to be the one commenting on this subject.

 

Why? Is that why that SS runs so good.

 

seems to me like geting rid of the maf is a big step backwards.

 

I'd have to agree with what some of the Aussie's are saying about MAFless tuning. It seems to have the most benefit for big heads/cam engines making big power. Also has advantages for forced induction.
The big "trick", if you can call it that, is having a wideband and a dyno that can hold load points. Then you just map out the AFR on the dyno and tune the VE/PE tables for the desired AFR across the board. This is very time consuming, but the only way to properly map out the fueling without MAF.

 

Not really worth IMHO. Seems that simply eliminating the MAF works great for big power "race" applications but you are really loosing some drivability ... however, I guess it depends on what your plans are for your vehicle. If you have not see whats involved with static load testing, I have a Mustang MD750 dyno which i use frequently and well, unless you have a few grand to spend on simple dyno time no including tuners rates, forget it. Serious racers or big buck players need only apply.

 

It can actually work great. It's a speed density setup like some of the older cars, Mustangs in particular. If you have a tuning wizad at your disposal it's great

 

There is really no detrements in going with speed density tuning, besides the fact that people are currently not experienced in it. The aftermarket chooses to use SD, and it is a good way to take intake restrictions out of the equation on higher HP vehicles.

When tuning the LS1 it would seem that people are relying too heavily on MAF only tuning, it has been proven that an LS1 running in MAF mode still needs the VE and PE tables to be on track for proper performance.
I have seen some good numbers come from VE table tuning even on MAF equipped cars.

I think this is just the realization of a new method of tuning, I bet if the topic was brought up two years from now it would be common place and prefered amongst most profesional tuners.

 

Tuning with a MAF sensor is a pain due to restrictions in the MAF(mainly design flaws not physical ones). However, getting rid of the MAF is really IMO when on big HP cars and cars that are not daily drivers.

 

Another comment or two...
One way of looking at SD tuning is that it forces you to map out an accurate VE table. The stock VE table may not be "perfect", but the MAF allows a conservative factory tune to work around it. When you put a more aggressive tune in, the imperfect VE table is a little more noticable. When you modify an engine (and improve its VE), the true VE moves even further away from stock. So, the more mods you have, the more likely VE tuning or SD tuning can benefit you.
I also agree that, at some point, the MAF can become an undesirable restriction.