4A-GTE, I know, I know Options

[thespacepanda]

There have been a few threads about this idea but nothing that was very informative/complete. I have an ST and I feel that for the power goal I have (250hp), the easiest on my wallet/brain would be fitting a turbo onto a 4A-GZE. I consider the s/c version because I have heard that stock internals can handle quite a bit of boost (12-14 psi iirc) which with the proper tuning could achieve 250.

But as I said, nothing on the site seems to give a lot of info on doing this modification and I'm not asking for a volley of information but if anybody knows of other sites or really anything that can offer more information on this it would be greatly appreciated. I always research things thoroughly before starting a project and I want as much as I can soak in.

[thespacepanda]

Always. What about ECU settings. Do I use the ECU from the gze? I would assume that the settings would be all wrong for super to turbo conversion. Would a stand alone be more beneficial/easier and do these exist?

[Kwanza26]

Always. What about ECU settings. Do I use the ECU from the gze? I would assume that the settings would be all wrong for super to turbo conversion. Would a stand alone be more beneficial/easier and do these exist?

Best would be a standalone, however the 4AGZE ECU has been used in turbo set-ups without a piggyback, so the 4AGZE ECU fuelmaps and such work well be it turbo boost or supercharger boost. I think the best set-up would be a 4AGZE ecu with a piggyback for further tuning. You can look at it like a custom turbo set-up except with a slightly better capable ECU in terms of handling boost and fuel maps. Again, a standalone would be best and for the most part somewhat easier to wire up, but much more difficult to tune properly. The benefits however, is basically infinite tunability.