Few more questions. For a daily driver like my NSX that is operated in winter, there are some things that are not clear with the Infinity system.
1. The stock manifold has two cold idle control devices, the FITV and EACV. They have separate ports on the manifold. The FITV is a simple thermowax plunger that is bathed in coolant and sets idle at 2,000 rpm when dead cold and gradually cuts out once coolant is at around 185F. The EACV will add 300-800 rpm to the idle when cold and appears to act in concert with the FITV until coolant temp reaches normal. How does the Infinity manage cold idle? Is it all through the EACV?
2. The EACV also manages idle when the A/C clutch engages and when the alternator is charging. The factory ECU has volt inputs for both of these conditions. Does the Infinity take these into account? In other words can you set the Infinity to blip the idle when the A/C kicks on and/or when the alternator is charging?
3. How does the Infinity manage cold starts? Will it adjust mixture for ambient air temp? Does your manifold have a port for the factory intake air temp sensor?
You mentioned you will include an EACV port, so I assume it is for these functions using the stock unit? I guess I want to understand better how the Infinity manages these OEM functions.
I honestly don't know why Honda uses a fast idle thermo valve on some of the models but not all of them, like the Integra type R, but idle control is just fine with or without it. I am constantly removing them and welding the ports on customer cars when they go bad to save them the headache of idle surging when they stick open. To answer your question in this regard, no I do not incorporate the FITV because it is not needed and makes the install simpler. My NSX starts and idles just fine without it. You just input a little more duty cycle to the Idle control valve through the Infinity or adjust the throttle stay. You could even get rid of it in the factory setup and the ECU will compensate for idle just fine without it, even in winter. I made the decision to remote mount the IACV with this manifold for two reasons: 1. looks, because the valve can be remote mounted and tucked away which clashes the look of the manifold. 2. Because the valve is remote mounted the coolant lines running to it will not transfer the heat energy to the manifold.
The Infinity can compensate for electrical load and also A/C load no problem and my A/C works just fine with it There are settings in the USER GPO's table as well as custom 3d tables to do whatever the hell you wish under these conditions.It can also compensate for low and high voltage situations as well (ex. injector voltage offset) and has compensation tables for coolant temp and air temp as every management system should. You can even install a pressure sensor in the airbox and have additional compensation if you wish.
This manifold does have a spot for the factory IAT and it mounts into the plenum where the factory connector plugs in without alteration. To answer your questions about driveability, it runs better than stock and I can drive it every day if I wish. It even has better throttle response than it before the manifold install. The only noticeable difference (other than the power increase) is the throttle pedal will feel a little more stiff due to the stronger return spring in the new throttle body which will loosen up over time as it gets driven. Hope this answers your questions.