Any modern ECU should be able to handle ITBs really well. Virtually all of these include VE based 4D modeling, Alpha N, and sophisticated fuel modeling. For typical street/club level systems, Emtron KV8 is probably the best, but is relatively pricey. Link G4X PnP is the most cost effective for the S2000 and is a thoroughly modern and well supported ECU. It will run the coolant temp gauge. I would likely choose your tuner first, and then stick with a system they know well and have proven ITB experience with. You may want to talk with UMS Tuning in Mesa. They rep virtually every major ECU brand.

Some examples of how different ECUs handle ITBs:
HP Academy (Emtron)
https://www.hpacademy.com/blog/dont-...ning-techtalk/
Evans Tuning Academy
MaxxECU
https://www.maxxecu.com/webhelp/solu...le_bodies.html
Haltech
https://www.hpacademy.com/previous-w...haltech-elite/

 

I appreciate this. After reading as much as I could I think I'm going to go with the Link.

 

I would highly suggest finding a tuner first and asking them which ECU they recommend. All ECU's can arrive at the same end result. The difference between all of them is the software and features. The tuner is only as good as the software they are using. If you bring them an ECU whose software they are not as familiar with the tuner will have a hard time.

Something else to consider is emissions. Hondata Kpro can pass emissions since its basically a rom editor. The rest of the ECU's on the market are standalone ECU's which will not pass emissions.

 

What is the reason the Link doesn't support the 2006+ DBW s2ks? Is it solely because of the DBW mechanism on the s2k or is it something else?

 

I confirmed with Link customer service a couple months ago that it will not support DBW as a plug & play ECU. There is an expansion DBW harness that plugs into a header on this ECU to control the throttle bodies, and the option can be enabled via software. The throttle control will have to be calibrated and set up by the tuner.

 

I see, so it's supported, just not as a PnP solution. Any idea if the dash/instrument cluster would work? I'm going to guess/assume no which sucks. For a lot of strict race cars switching to a new cluster that works with the standalone makes sense. Are there specific features that make the Link better than the Infinity?

 

No idea really. I'm not sure how the 06+ cars DBW and dash interact, if at all.

 

hey guys didn't want to make a new thread since this is basically what I'm looking at as well - 2003 AP1

Just to make sure I understand - AEM Infinity and that new Link ECU should both be plug and play as in not needing to swap any sensors etc right?

I'm staying NA but want something tunable that I can easily swap back to the stock ECU for yearly I/M testing and then swap back to the tuned ECU.

 

So while the LINK ECU is "Plug and Play" it's not as simple as that. You'll need to buy a separate ECU case, and machine it a little bit to fit. Otherwise you can swap ECU boards back and forth as you want. Either way you'll still need to machine the ecu case.

As far as sensors I believe at a bare minimum you'll want to run a wideband 02. If you have a header with room for two 02 sensors like the Toda you can probably leave your OEM in and just swap the ECU's back and forth.

If you go with the AEM you'll also need a wideband 02. In addition to that you'll need a jumper harness to plug the ECU into the OEM harness.

 

Thanks for clarifying!

I'm looking at probably J's or Ballade headers for weight reduction - will need to see if they have room for another O2 bung.With the AEM and its jumper harness though I'll be fine to leave all the AP1 sensors on?

The goal is just to keep things a simple/easy as possible to swap back to the stock ECU since I have to do state I/M testing for registration. Assuming the I/H/E and bored TB + IM don't cause any issues with the stock ECU that should be fine I'm assuming.