No i don't think it's a failure what your doing,you won't achieve 10's with that spec but i'm sure you will have fun trying!
I'm trying to advise you in what works and what you will need ,to do a 10 you need a 130mph terminal with 1200kg ,to get 130mph terminal you need 480-500whp DD,to get that you need minimum gt35.
btw it's not motec and will have switchable anti-lag and launch control,my bro's is just a test mule.