Quamen

iTrader: (14)

I have been doing some research and this is the conclusion I have come to regarding monitoring air flow using ITB's so that the ECU can monitor fuel:

Vaccuum hoses are linked to each inlet to the motor that go to a MAP sensor.

Is this a correct statement?

350Zteve

iTrader: (6)

This is not correct in terms of a 350Z. The Z runs a MAF (Mass Air Flow) sensor, not a MAP (Manifold Absolute Pressure) sensor.

Now if you're going with a stand alone ECU, then yes, you can run a vacuum line to a MAP sensor and that, combined with the TPS, will tell the ecu what it needs to know.

Quamen

iTrader: (14)

I am aware of the MAF v. MAP sensor thing. Cant you run a MAP sensor with the UTEC?

Quamen

iTrader: (14)

I remember somewhere I read that MAF's are used for better drivability.

However, if I remember correctly, there is some car manufacturer (Lincoln I think) if not a few that use MAP's to run the car and they are not boosted cars either.

Again, I could be wrong.

Z1 Performance

iTrader: (564)

many Honda's run MAP sensors as well, non boosted

pick your posion..plusses and minusses to each

LHP

The ports can be connected together for a map signal,
Small lines to a common small plenum of sorts.
but anytime you are using ITB's, the use of a map sensor is very limited,
as you open 6 throttles, you lose your vacuum signal fairly quickly,
so hard to tune with the map sensor.
Most common to use TPS and RPM for tuning of engine.
The vacuum source you have from connecting 6 ports can still be used for power brakes etc.
And to use a MAF sensor will or could restrict airflow to a set of ITB's as well be sensitive to back flow from ITB's, large cams etc.
ITB's have a gulp factor that a MAF sensor can not keep up with
(Reaction time to the ITB's)

LHP
www.haywardperformance.com

Quamen

iTrader: (14)

I personally have only seen the use of MAP sensors linked to a common plenum. I was not fully aware that TPS and RPM were used together to tune so much.

It is really nice to find that out.