Has FactorX clocked the CPU speed of the ULT I highly doubt that; with out that exact info there is no way to say that it is to slow..

I have been using A/F feedback for over 3 years now with no issues.

However the misconception is you can use the A/F feedback to build your basemap fuel curves. This is totally incorrect and will blow the motor up.

The A/F feedback just keeps the A/f where it should be for changes in environmental conditions after the base fuel curves have been generated on a dyno.

This is exactly the same process the OEM PCM goes through when operating in open loop.

Yes the AEM will work just set the A/F option as "other" and select the range in AF in the ULT.

 

I have tuned cars to higher psi than that however above that level I like to have added features as failsafe to protect the motor incase the owner does something stupid like just randomly turn up the boost another 15psi without informing me...

I had some1 do that. POP goes the weasel or more correctly a rod; rank shaft; head gasket; starter…ect. Was not a S2000 it was a 350Z

 

Probably not, i've opened this idea to FactorX before but he suggested going standalone because of the reasons he stated. Perhaps he was just pushing me to get a standalone. Anyway I don't want to threadjack, thanks for the info mang, kinda gave me good prospect with my EMU. I'll shop around for the Greddy 15900912 harness.