Re: fool boiler & SportsCar on 'EFI'

[harrison <hsapir@multiverse.com>]

For a good example of mechanical fuel injection, look at an old MB 280 SEL from 72 or older. They used an injection pump on the engine driven by the timing chain that looked identical to their diesels.

harrison

quattro wrote:

> I claim that CIS is not EFI because the engine runs with no DC power to the injection system, the engine runs with the FI operating in a 100% mechanical mode. This I refer to as 'mechanical fool injection'. Even more technically accurate would be 'mechanical fool injection with electronically-assisted mixture control'. (all strictly IMFO).
>
> What's the diff between CIS and CIS-E? CIS-E has the 'electronically-assisted mixture control' via Lambda sensor and freq valve and CIS is 100% mechanical?
>
> -glen
>
> << Well Glen I would have to agree with you there.  I have taught myself
>  not to refer to my car a "E"FI.  Graydon put EFI on his car.  CIS is not
>  electronic at all, excepting the OXS loop in USA and I suppose if you
>  want to get technical the frequency valve, sort of.
>   >>
> Actually I have read that electronic fuel injection can be described as any
> fuel system which is controlled by a computer.  Late CIS systems fall into
> this category as well as EFI's with electric fuel injectors, but in my opinion
> the turbo's CIS is a cross between an EFI and a mechanical fuel system, so I
> guess you could call it an (EFI)/2 system.