OK a bit of theory.
Firstly, GTiR pulsar and Skyline GT-R's both run boosted individual throttle bodies so its by no means a novel idea.
It lets you get the best of both worlds. Awesome throttle response of a nice small plenum NA car because there is little damping from the small amount of throttled charge, strong midrange from good charge velocity(because I chose appropriately sized ITB's) and wicked top end from benefits of the better mixing from the injector placed furthur back, and the increased flow.
They are 38mm throats, good for around 180hp N/A and whatever you want FI.
Im going to run a centrally fed log plenum which should help even up cylinder filling. The middle two will get more than in an end fed because thats where the feed will point to a certain extent, and the end two always get more in a plenum so that should even it out, without me having to spend large amounts of time on the flow bench ballancing my runners. It will be about 1.4-1.5 litres in volume, bigger = more power, smaller = quicker throttle response.
I think my idle and low down should be better compared to N/A cars with ITB's because the motor will have all the plenum, turbo piping, the turbo and the air filter all to pull a decent vacuum against, not like N/A cars just with some velocity stacks. And plus I didn't just go for the biggest ITB's I could find, in fact I went for the smallest. I think a lot of the poor low down people experience with ITB's on here (NZHondas) is because they go too big, you can make 220 NA HP on a 42mm ITB setup...
I have also done some more research regarding ECU's and I tihnk I will use an OBD0 setup if I can get away with it, there are a few less things to worry about and the hardware is a lot cheaper. I have decided to go this route rather than develop the City ECU mainly because it gives me programmable ignition.
Trying to make big power of a dizzy ignition system requires expensive and time consuming re-graphing of the mechanical advance weights and nasty shite like that, very middle ages tech.
And after all, maximum timing is probably one of the most important factors when getting the most out of an engine, a couple of degrees of timing can mean 20-30hp
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