Thread: MAF->MAP conversion with Tunercode?

Us B14 guys already have those

very interesting stuff....subd

The deal with the "current" AIT, is that it's worthless.

I'm sure Dave can implement the non-functional (read: useless) AIT into tunercode so that it can be of use with a MAP converted setup.

And I second Jamie's post in that MAF's do not suck monkey/donkey/giant/blue/brass balls. I've seen the light, and now believe that they're great, so long as the user/owner/tuner knows how exactly they work. MAP is also great. Different strokes for different folks.

We have difficulty with them because they're in cramped engine bays, and we move them from their intended (factory) locations.

People complain about MAF's because they can't run Open BOV and rice up the streets without running dirt rich, stalling, and muffler firing.

But really, MAF's are harder to tune with turbo cars, simply because it's a calculated value not relevant to PSI your running. Location of the MAF's is another issue, I think the biggest annoyance to me is the cost of MAF's and needing a new MAF for higher HP's. Then half of the used MAF's on the market are also almost dead. I bought 3 E60's all with volts at 1.10, when dead volt is 1.0.

I think the biggest problem with a MAF setup is definitely the difficulty in setting one up properly for the average person.

I have a lot of people come in with the MAF that is half an inch from the turbo and with no recirc on the bov. This causes all kinds of tuning head aches (especially with the Z32 maf).

Switching to a MAP/SD system will greatly simplify the setup process for the average person.

I don't mind tuning a properly setup MAF car at all, but those are few and far between in the real world.

Well put John.

Vadim, people with map based cars (read: Honda) have the same issues in that they're forced to upgrade map sensors based on their setup, so I don't see your point.

MAFs are for engines with ITBs and a plenum (the roadworthy way to do ITBs). Otherwise give me a MAP-IAT please. =D

Don't get me wrong, MAP/AIT is great and will bring life to the SR/KA community, however MAF tuning isn't a bad thing either.

I guess a MAP has a max PSI reading?



Don't get me wrong, I like MAF's too. For a non-tunable ecu is the best way to go since it can self tune to the new mods. With a MAP you have to get a retune if you install a CAI. But when we want to easily tune stuff, MAP hands down.

It's so hard for me to share a MAF tune because there are no actual PSI numbers, thus I have to see what TP/Boost level I have while driving, then write it down. Then write it in the tune, etc. etc.

Manifold absolute pressure "MAP" varies (obviously), and different vehicles have different characteristics. Most Honda MAP sensors are 1bar, and GM sensors are 3bar. I'll let you figure out why