>To me, it just seems that we
>should not part throttle boost in closed loop, without
>timing retard, past 5 or 6 psi. WOT boosting, not going over
>7 or 8 psi with out minor retard also.

I tend to agree with you on this one. It's a big hurdle - using a non-turbo ECU with a turbo. Every turbo kit already clamps the MAP voltage or modifies it with something like the missing link. The open/closed loop timing curve is not addressd by any kit(like it is with the stock turbo ECUs). I wonder if we could fashon a sensor that would somehow 'clamp' the ECU to open loop after seeing 5 or 6 pounds...much like the device that Corbin designed to fool the S-AFC to run from boost pressure. Perhaps it could intercept/control the TPS voltage. When it sees 5 pounds and TPS<80% then clamp the TPS to 85%...but as soon as the actual TPS hits 85% then it relinquishes voltage control back to the actual TPS sensor. You can't just blatently hold the TPS at 85% at WOT, that would be no good. It would have to take boost pressure AND the TPS voltage BOTH as inputs and output an 'open loop' TPS voltage when nessicary. Would there be any drawbacks with a sensor like this? What are they?

As far as the retard at higher boost, you would still need a Crane or Safegaurd or something like that.


ride__________95 Eclipse RS : 5 speed
power________Gude cams : AFX UDP : ram air : test pipe : Thrush glasspack
suspention___BOMZ F/R upper strut bars : ES inserts
sound________Kenwood KDC 5000 : Audiovox 8" sub toob - no sub amp(damnit!)
shizzle_______AutoCommand remote start : dual air horns
incomming___Hurricane F/R lower strut ties : Jeep TB : Field SFC Hyper-R : GST catback

95 Eclipse RS : 5 speed
14.76 @ 94.72mph
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html