16v Cars

[shwah]

CIS systems also do a much better job of atomizing fuel than 'electronic' fuel injection systems.

CIS-E Motronic has a larger fuel plunger and can support a higher max hp than CIS-E; neither of which really matters for IT spec engines.

The mass air flow sensor in CIS type systems sure may seem like a big restriction when you look at it, but if you consider the size of the opening, and the cross sectional area exposed when you raise the flow plate, I don't think it is as restrictive as people expect.

[Eric Parham]

CIS systems also do a much better job of atomizing fuel than 'electronic' fuel injection systems.[/b]

That used to be very true, and may still be true to some extent, but many modern EFI injectors now have excellent atomization.

CIS-E Motronic has a larger fuel plunger and can support a higher max hp than CIS-E; neither of which really matters for IT spec engines.[/b]

Yes, a slightly longer rod with slightly longer fuel metering slits, as I recall, but no additional functions. They're the same animal for our purposes.

The mass air flow sensor in CIS type systems sure may seem like a big restriction when you look at it, but if you consider the size of the opening, and the cross sectional area exposed when you raise the flow plate, I don't think it is as restrictive as people expect.[/b]

Depends a lot on the control pressure for CIS-basic and CIS-lambda (that's another reason why we try to reduce it). I believe that CIS-E and CIS-Motronic may not be tunable in the same way, but I haven't reviewed it lately. If I'm correct, they may be even worse for our purposes than the older stuff.