Originally posted by Rara:
this is exactly the sort of tuning aid I have been talking about for some time, and I know of at least one other company working on supporting the contour pcm ( www.tweecer.com )
This sort of tuner will allow complete control over the tune/calibration of the powertrain. This is both good and bad, it allows you to tune exactly to your personal setup, and run things the way you want. The downside is, how many out there really know what they are doing in tuning an engine? Not many (not even those of you that are trying to lie to yourself right now).
As to those wondering about warranty issues . . . If you are concerned about your warranty, DO NOT install something like this (or the Apexi, etc.) since it is very easy to cause damage to your engine w/ the wrong settings, and a dealer will NOT warranty any damage caused by your tuning or aftermarket parts. These aftermarket items will typically leave some sort of tell-tale marks somewhere so a dealer can tell it was there. Also, if you do happen to try and are succesful in getting a dealer to repair damage caused by your inept tuning, you will be guilty of criminal fraud, and for your sake, I hope you don't get caught.The wise Rara put it into words I could not do myself. Without a wideband, dyno, or a profesional tuner to help you guessing could potentially cause problems.
The ONLY modifications I did to my PCM were to run an exact copy of the 4.6L GT 80mm maf function and slightly advance the timing. I'm currently in the middle of building a knock sensor from GM parts
and a wideband using the Honda SLEV O2 sensor so further tuning can be accomplished.
This type of tuner would be invaluable to artificially aspirated motors. The lightning 90 mm maf and 4.6 TB on a S/C or Turbo Duratec, and or for the Turbo kits comming out for the Ztec would provide meetering and flow capability's never seen before. Loose boost and gain cfm!
