Besides tuning, what are the advantages of converting to obd-1? I am going to do an auto-manual swap, and was considering converting while I’m at it.
Oh, and before anyone tells me to search. I am well aware that there are more ecus available along with a wider array of tuning options. Are there any other reasons to convert? The most this car will see is a b16 w/ bolt-ons.
There would be an advantage to convert to OBD1 if you’re going VTEC. The pre OBD (OBD0) VTEC system uses a unique oxygen sensor setup; it uses two 2-wire (unheated) o2 sensors located at the 4-2 merges on the exhaust manifold. I don’t think there are any US companies that make performance headers for this setup anymore, so you would have to find an old JDM aftermarket header if you want performance.
Converting to OBD1 would allow you to use a single 4-wire (heated) o2 sensor located on the top of the header collector, which allows you to use almost any B-series performance header.
You said the car could see a B16A with bolt-ons, and the exhaust manifold is the most important bolt-on, IMO.
Are you saying that the 4 wire o2 sensors give better readings, or just that most headers are predrilled and tapped for those sensors?
The O2 sensor thing of OBD-0 is not that big of a deal. I run OBD-0 on my B16 with a chiped ECU that iliminated the need for an O2 sensor. The header that I run on my car is a Mugen 4-1 without any problems.
The other thing as to why people like to change to OBD-1 is because you can run a Hondata with it wich is a great system to tune a car.