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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,274
Originally Posted by RarlyL8 View Post
I seriously doubt if iA is doing any of this themselves. They may have done the development work but I bet you a Bosch shop is doing all the head mods. Find that shop and you find your answers. Not an easy task - Bosch will not even sell parts or rebuild kits for CIS fuel systems. They protect their distributors.
They have someplace else do the CNC machine work to enlarge the slits and orifices, but they do the individual injector flow rate allen head adjustments in house.
They can reset that but it will change flow rate at all rpms, not just less in the midrange which would be nice.
At least thats what I've been told.

Seems to me enlarging the metering slits in a taper towards the top so the midrange doesn't flow much more than stock but the top end would flow more where you really need it would have the results most of us would like.
I'm just guessing though...
Old 06-17-2008, 01:13 PM
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