I wasn't going to post up my ITB design but since there is alot of knowledgable people posting in this thread I thought I'd try get some constructive critisism
So heres some pics
Ok so a couple of things to note are, obviously they aren't finished ie its just the basic in there.
Secondly they are being built to a budget, with the emphasis of ease of manufacture and cost, As i am making them for myself out of my own back pocket so these two things are important, so I realise it will be compromised somewhat, but I still feel it is an improvement over a stock IM. It has been designed for n1 cams, maybe slightly bigger.
It is 330mm from valve to end of trumpet. It is 380mm horizontally from the flange face to the outer most edge of the air filter (dont know how this would fit in a fwd car as mine is going in a rwd car.
The manifold is cut 5 mm past the injector bosses and flanges are welded on. The Blocks that bolt to the flanges are CNC machined and transitions from the oval port (34mmX52mm from memory) of the factory intake to a 45mm butterfly. They are Jenvey Trumpets (which I already have) and stand off injectors (mounting and plumbing not finished)
As I said They are not entirely finished but I would love some constructive critism from you guys in the know.
Cheers
Nick
Edit: When I go back into work in a couple of days i'll get a section view of the block showing the transition, this is the part I feel is most compromised