What are the major differences between the 440 and 420?

Does the 420 have the adaptive tuning?

This ECU option is looking really good when I compare it to my Microtech, this offer's far superior protection and functionality.

As far as the o2 input is concerned, if I'm using a wideband 0-5v input will the ECU adapt if there is a sudden change in the AFR detected?

This interests me a lot, if for example the car is tuned with the aux methanol injection running and at some point a problem arises with the methanol delivery, will the ECU detect the change and adapt to protect against detonation because of leaning out?

Or will will I only be able to protect against detonation by retarding the timing when knock occurs through the ECU?

 

Ok, so I can see from the Adaptronic website that the 420 offers 'VE tuning' but is this the same as 'Adaptive Tuning'?

Or is the 'Adaptive' tuning where the ECU will change the ECU in relation to the AFR from the wideband input?

 

Hi guys, yes the only difference between the two with respect to the tuning is that the 420 doesn't do adaptive tuning, that is, it doesn't adjust the fuel map.

It can still do closed loop fuel trim based on narrowband or wideband O2 sensor.

Otherwise they're the same on the tuning side of things (the 420 has fewer inputs; 4 digital in instead of 8, 1 road speed instead of 4, and no flex fuel function).

Thanks!
Andy

 

And as far as protection to the engine using the 420, I understand the changes you are making will come into effect in a few weeks, to drop the RPM if Fuel, Oil, Methanol and AFR's drop, will this be available for existing ecu's or just the new ones?

 

Gareth,

That will be a firmware update, available to all ecus, not just units produced after its available. If you've got money burning a hole in your pocket I would suggest switching to a set of ID injectors, so you have accurate dead lag settings for the ECU.

 

Andy, you mentioned that on your FD you are running the stock primaries and ID2000's as the secondaries with no noticeable transition, is this because of the ability to change the dead lag and the way the ID injectors react?

I've got a set of 850 primaries and 1680 secondaries that i intend to use. What would be the advantage of running the ID's as opposed to my setup? Is it just the ability to change the dead lag?

 

Its two fold, A) the Adaptronic does a great job at fully automating the staging, and B) ID injectors are properly tested for their dead lag settings( correct settings are necessary for a smooth transition).

The suggestion to change injectors isn't based on your current sizes, but your current technology & published dead lag settings. The 1680cc units are not very linear in flow at low injection on time. This is part of the reason most people have a hard time tuning them. Furthermore if the dead lag settings aren't available you're just guessing at what info you give the ECU( which it needs to make proper adjustments!)

 

Andy, with your setup on your FD, how much WHP are you supporting with 2 x 550cc & 2 x 2000cc?

 

600rwhp is the max on 550/2200 combo using gasoline. This is Elliot btw.

 

Cheers Elliot, this option is sounding rally good. Do you or Andy know of anyone in New Zealand who you'd recommend to tune the adaptronic?

 

So only the 440 can be used with E85?

 

Gareth,

I have an rx8 customer running a plug in who has had some sucess with a tuning shop. I cannot remember the name, but I will get it and put you in contact if you like.

Rotaryweapon: You can still use e85 with the 420, you just can't have it self tune for the alcohol content.

 

Cheers Elliot, that would be a great help!

 

So 440 it is, Thanks Elliot.

 

I'll be ordering the 420, when I compare this to my LT10s microtech, it has so much more to offer and actually utilizes the inputs you give it! The combination of the boost control is another advantage, can get rid of my HKS EVC controller.