MAP Sensors, For my Turbo Type-4 Options

[Britain Smith]

With all this talk of turbo type-4 engines, I am getting excited to finally get my together. This is a preview picture of it mounted in the back on my car. I am not going to show you more right now because we are redesigning the exhaust system to get more ground clearance and we are still working on the intake side of things. It is all going to be covered up by an intercooler anyway.

In either case, if I planned to run only up to about 12psi boost (guessing) would a 2bar MAP sensor be sufficient or should I just get a 3bar sensor? Is there a downside of using a 3bar sensor and not going about 14psi? Any resolution issues or anything? Also, are there preferred brands?

Thanks,
Britain

(IMG:http://www.britainsmith.com/Porsche/912Project/TurboFab/images/DSC00987_jpg.jpg)

[lapuwali]

Which ECU do you plan to run? That makes a significant difference, as they can't all be used with whatever sensor you like. FWIW, the Megasquirt stuff comes ONLY with a 2.5bar sensor, as it provides good enough resolution for NA applications, and will take you up to 21psi of boost, which is usually enough to blow up most engines.

If the ECU you choose allows a lot of latitude, a 2 bar sensor is fine. A 3 bar sensor is also fine, as the resolution loss is, in practice, a non-issue.

On tin, I think Jake is working out (or has available) fiberglass 912E "tin". I'd use that to cut up for the turbo long before I cut up real 912E tin.