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VEMS is a particular type of universal standalone ECU.
There is a fellow in Europe who takes the standard "build it yourself" ECU and configures it so that it plugs directly into the 944 engine harness, and has a tune onboard for the 944 engine to get you going. I bought the kit from that fellow.
From there you are free to tweak it as you wish...boost, variable cam timing, NOS, anything you want it to do, it can do.
filly:
I really liked the NA tune but I just didn't have time/interest to log it and tune the AFRs to be spot-on.
Nothing wrong with the setup, it got my early NA rated 143hp at the crank up to 160 with lots of dyno tuning. It was just my personal reality.
The option of having an auto-tuning feature, with an ECU that understands wideband input and that also is NOT 30+ years old, was very attractive and was why I went for it.
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