[Diy_efi] Re: Minimalist micro based EFI ?

[bill.shurvinton at nokia.com]

> -----Original Message-----
> From: ext Mike [mailto:erazmus at iinet.net.au]
> Sent: Tuesday, March 11, 2003 2:43 PM
> To: List for general do-it-yourself EFI talk
> Subject: RE: [Diy_efi] Re: Minimalist micro based EFI ?
>=20
>=20
> At 02:28 PM 3/11/03 -0000, you wrote:
> >For a minimalist system 8 bits is enough until you are=20
> running more than
> 14PSI boost.=20
>=20
> <cough> I dont see how boost has anything to do with the=20
> number of bits.

Everything. I had missed your MAF reference so I was talking MAP. But =
with a 2.5 bar MAP sensor 8 bits is more than sufficient. Can't comment =
on MAF other than GNs and sytys seemed to pass with a MAF sensor and 8 =
bit processors and converters.

>=20
> >There are plenty of megasquirts out there with 8 bit A/D and=20
> no problems.
>=20
> Well sure and you could do it without any a/d just by using=20
> pulses from
> the TPS however, there is the issue of emissions, so perhaps what i
> should have asked/observed about was what is the accepted MAF=20
> resolution
> for a tolerable emissions spread across load - in terms of what the
> oem's do ?

IF you want to meet ODB2 then you may need something more than =
mimimalist. But if you want to meet 93 level emissions then 8 bits is =
fine.

_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi