AXIS ?

[turbocamino1]

Looking into the advantage of the Axis reading over the 255gr/sec to 512. I have the basic 5.7 chip that im pretty good a tuning now..after 10 yrs of that. Eric makes the base tune in the chip for my mods and i take it from there with my wideband readings thru fuel/timing adjustments and its been working fine.I do not have PL files to show if its lean or fat thru a WOT pull. Because the Axis reads further how will that 512gr/sec trump what my tune ability , or capability, is now overall?

 

[dynoman]

Mr Spool runs the Axis in one of his cars , maybe he will chime in or PM him .

 

[BEATAV8]

Extender extreme (similar to axis) was my favorite chip. Axis is probably even better.

 

[mblum]

While I cannot answer your exact question regarding all the benefits of the 512 gr/sec measurement capabilities of the Axis, I do run the Axis on both of my cars, but I push the 86 GN much harder.

I can run anywhere from 18 psi (as low as my HD WG will go) to the max the turbo will give me (about 34 psi) on the same chip, I don't need it re-burnt for different boost levels. I still log with a wideband in PL but the chip does a very good job of measuring the air and adjusting fuel without adjusting the chip in a wide range of boost levels. Generally the chip is rich at its base setting so when I adjust boost I keep it at 0 and adjust from there to dial in my ARF exactly where I want it. In good quality cool air my 86 when the turbo is maxed out will hit 430 gr/sec, so I have not hit the 512 limit.

While I didn't answer your question, I am not exactly sure where the 512gr/sec measurement abilities comes into play here, but I am just giving my experience.

Its also worth mentioning that I cannot remember the last time I adjusted the chip, once I got it where I wanted it the chip does a very good job of adjusting for different air temps on its own.

Pro's
-Wide range of adjustability with different boost levels in the same chip.
-The chip does a very good job of adjusting for different air temperatures
-You do not lose your chip settings if you lose power to the ECU. The settings are a dial setting, not adjusted in the chip with the gas pedal.

Cons's
-You have to open the hood and open the Axis box to make adjustments rather than using the gas pedal from the comfort of the front seat.
-You will lose the ability to read air temperature in the SM and PL due to that wire being used to adjust spark within the chip and is tapped into when installing the Axis box.
-You need to also purchase the Axis Translator (the box) which also serves as a MAF translator.

 

[turbocamino1]

Thanks for all the above.. I some what gather that above the 255gr/sec Eric is making an educated guess from his years of experience and research. With the Axis, reading to 512, fuel can be matched more accurately as air is seen in a larger window ? my theory/guess. I think i will post this on Erics TT forums too.

 

[Mr.Spool]

Looking into the advantage of the Axis reading over the 255gr/sec to 512.

Everything.
The 255 is the end of the computer monitoring airflow and controlling fuel based on the maf sensor.

 

[Mr.Spool]

Mr Spool runs the Axis in one of his cars , maybe he will chime in or PM him .

Shhhhh.
Can't let people know the stock ecm can go fast

 

[Mr.Spool]

I some what gather that above the 255gr/sec Eric is making an educated guess from his years of experience and research

That's called a base map.
All chip makers are putting their map in and guessing on the fueling after 255gr/sec.
The Axis uses a map given by Eric and you can tune on the map
spark timing/fuel at different rpm and boost points in the curve While the computer is seeing airflow data gr/sec from the maf sensor.
The systems works fantastic and is by far my favorite stock ecm setup.

 

[Mr.Spool]

I

Cons's
-You have to open the hood and open the Axis box to make adjustments rather than using the gas pedal from the comfort of the front seat.

Don't know
Some of these guys cars i tune i don't want near them dials im glad its in the car

 

[turbocamino1]

That's called a base map.
All chip makers are putting their map in and guessing on the fueling after 255gr/sec.
The Axis uses a map given by Eric and you can tune on the map
spark timing/fuel at different rpm and boost points in the curve While the computer is seeing airflow data gr/sec from the maf sensor.
The systems works fantastic and is by far my favorite stock ecm setup.

To be clear...its not auto correction like a 6.1+wideband..its a program that tell the injectors when and how long based off that larger airflow gr/sec reading and Eric's knowledge? Eric's reply to me>" "With the Axis, you can read the MAF at WOT (to 512gr or 768gr depending on setup), and use that to calculate fuel, then it can take into account changes in airflow from different boost, air temperature, etc, or changes that were made to the engine or turbo, anything that affects airflow.