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oldcorollas Forums Junkie Location: Kita-Ku, Sapporo, Japan Registered: January 2003	Re: 1JZ Fuel System Q's Tue, 14 October 2003 13:02 oh no batman!!!!!!! call the cavalry who said it doesn't increase pressure?? i should have said "manifold pressure referenced fuel pressure regulator" a standard fuel pressure regulator serves to simply keep the fuel rail pressure a "fixed pressure" above the manifold pressure (be it vacuum or boost). a "rising rate" regulator has a different manifold pressure/fuel pressure ratio.. ie the fuel rail pressure rises faster than the manifold pressure (for boost).. afaik, most rising rate regs work as standard regs when manifold has vacuum standard is 1:1 rising rate is greater than 1:1 (like 2:1 or 3:1 etc) rising rate are way to get around using programmable ECU but are not a very good way to do it (particularly if you are running decent boost... you risk overpressuring the injectors) this is basic EFI information. now you know Cya, Stewart [Updated on: Tue, 14 October 2003 13:06] [Report message to a moderator]

	Subject	Poster	Date
	1JZ Fuel System Q's	Skip	Tue, 14 October 2003 05:00
	Re: 1JZ Fuel System Q's	Norbie	Tue, 14 October 2003 05:12
	Re: 1JZ Fuel System Q's	Skip	Tue, 14 October 2003 07:42
	Re: 1JZ Fuel System Q's	oldcorollas	Tue, 14 October 2003 08:42
	Re: 1JZ Fuel System Q's	ChuckLandwehr	Tue, 14 October 2003 12:46
	Re: 1JZ Fuel System Q's	oldcorollas	Tue, 14 October 2003 13:02
	Re: 1JZ Fuel System Q's	slylux	Tue, 14 October 2003 13:55
	Re: 1JZ Fuel System Q's	Skip	Tue, 14 October 2003 22:27

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