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Toymods » Tech & Conversions » Modify 1jz VVTI + AFM = ?!?

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oldcorollas
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Kita-Ku, Sapporo, Japan
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Re: Modify 1jz VVTI + AFM = ?!? Fri, 12 August 2005 02:54 Go to previous message
AFM is more accurate because it is measuring the MASS of air going in, and it's reading is less afected by temperature and density changes.
MAP on the other had is very sensitive to temp changes and changes in density (both of which alter the pressure) so it needs better control of temp enrichments etc...

maybe MAP is better for spark control, perhaps in regards to knock, but for fuel AFM is superior. the restriction may not be that great, but for all out, perhaps MAP is a little better..
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SubjectPosterDate
Read Message   Modify 1jz VVTI + AFM = ?!? soarMon, 23 May 2005 13:33
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dravenMon, 23 May 2005 13:57
Read Message   Re: Modify 1jz VVTI + AFM = ?!? E30-323tiMon, 23 May 2005 20:41
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarMon, 23 May 2005 22:42
Read Message   Re: Modify 1jz VVTI + AFM = ?!? CrUZsidaTue, 24 May 2005 01:01
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarTue, 24 May 2005 01:07
Read Message   Re: Modify 1jz VVTI + AFM = ?!? CrUZsidaTue, 24 May 2005 01:08
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiWed, 10 August 2005 14:33
Read Message   Re: Modify 1jz VVTI + AFM = ?!? jasonp1977Thu, 11 August 2005 03:30
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarThu, 11 August 2005 04:12
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarThu, 11 August 2005 04:15
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiThu, 11 August 2005 04:25
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarThu, 11 August 2005 04:29
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiThu, 11 August 2005 04:23
Read Message   Re: Modify 1jz VVTI + AFM = ?!? CrUZsidaThu, 11 August 2005 04:23
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarThu, 11 August 2005 04:31
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiThu, 11 August 2005 04:43
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarThu, 11 August 2005 05:05
Read Message   Re: Modify 1jz VVTI + AFM = ?!? Chris DaveyThu, 11 August 2005 05:13
Read Message   Re: Modify 1jz VVTI + AFM = ?!? justcallmefrankThu, 11 August 2005 05:23
Read Message   Re: Modify 1jz VVTI + AFM = ?!? wilbo666Thu, 11 August 2005 05:59
Read Message   Re: Modify 1jz VVTI + AFM = ?!? CrUZsidaThu, 11 August 2005 06:03
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiThu, 11 August 2005 06:09
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarFri, 12 August 2005 02:11
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiFri, 12 August 2005 02:19
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarFri, 12 August 2005 02:24
Read Message   Re: Modify 1jz VVTI + AFM = ?!? dojobiFri, 12 August 2005 02:26
Read Message   Re: Modify 1jz VVTI + AFM = ?!? soarFri, 12 August 2005 02:40
Read Message   Re: Modify 1jz VVTI + AFM = ?!?  oldcorollasFri, 12 August 2005 02:54
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