I have a utec on my evo and I am just curious if I already have one? If not are they available from turbo xs? Also what is its purpose for my car? Thanks, any help is appreciated.

 

If you don't know if you have one you obviously don't have one. I would definitely buy it from TurboXS as it comes ready to install on your car for a little more money. Its purpose is to allow you to monitor how much boost you are making at different rpms on your logs. It will also allow you to run closed loop boost control which will give you better control of your boost.

 

TurboXS now offers a MAP sensor for the DTEC that may work with the UTEC. But you would need to contact them to find out.

Ben

 

A MAP sensor is usually a replacement for your MAF sensor. The purpose of it is to use temperature and boost pressure to estimate how much fuel your car needs to dump into your engine. Usually people get them with bigger turbos so they don't have to worry about outflowing their MAF sensor. The MAF sensor is located outside the pressurized tubing (inside you intake before the turbo) and estimates fuel by how much air passes by the sensor as it's sucked in by the turbo. I have a GT35R and the MAF sensor still works fine. If I were to run race fuel and turn up the boost, I would switch. By leaving the front side of your turbo open without sensors, you can gain some power too. Driveability is a little downgraded usually with these. Hopefully they will eventually come out with VPC for the evo which converts the signals from the MAP sensor into a MAF sensor reading your ECU can understand. I'm not sure how the piggybacks handle MAP sensors though.

 

Actually the MAP sensor for the DTEC has a different type molex connector (its the sub-mini 4 pin molex)

it WILL work if you replace the connector on it, but call them, they likely have one for the Tuner which will work with the UTEC (they share the same 4 pin molex connector for the MAP sensor)

 

Although your description of what a MAP sensor is typically used for is correct, the use of the map sensor IS NOT CURRENTLY for a speed density system on the UTEC (this will change in the near future), currently its used for boost reference for the mapping if you choose to enable it, for closed loop boost control if you choose to enable it, and of course logging the boost.

The VPC from HKS has been discontinued (for almost 2 years) however the 2G Eclipse version WILL work with the Evo.. Roms are no longer available and likely won't be released unless you can find one for the Evo VII... HOWEVER its expensive ($500-$600 used if you can find it complete with sensors and rom) there's also another product called MAP-ECU which is a speed density conversion and S-AFC in basically one unit, at $900 I'd much rather see it integrated into the UTEC..

Of course you also have MAF upgrade options such as the M-Pro Karmann Converter using a Ford Cobra style blowthrough MAF sensor, or the RamCharger MAF Translator, which uses the GM hot wire MAF sensor.. ($600 and $450 respectively)

None of these solutions is really PLug and play (except for the M-Pro setup if you choose to scavange a MAF connector from a broken MAF sensor or can find the part number and source it)

 

I've heard of Map-ECU I was possibly interested in it if it kept driveability decent. But then I need to get some head studs, better fuel system and possible rod bolts.