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oldcorollas Forums Junkie Location: Kita-Ku, Sapporo, Japan Registered: January 2003	Re: 16v 4AGE quad throttles - stock ECU shortcomings Sat, 09 July 2005 14:03 vacuum canister will definitely help, but if you have very large cams, that may not be enough.. as far as MS goes, ppl are running quads with as little as 15kpa vacuum at idle and 20-25kpa cruise.. with stock cams, quads will generate a more erratic map signal, but with the right mixture of restriction and .. capacitance.. in the lines, you can still get good results... even something as simple as an inline carby fuel filter works very well the problem is that the engine thinks it is getting more air, since it sees a higher kpa, and so it should run rich. in turn, the timing will be reduced at part throttle because the ECU thinks it is under load, but at large throttle openings, the timing will be ok anyway.. just may be a little more sluggish at part throttle... if you can, borrow an MS to datalog map vs rpm and TPS with the stock setup first, so then when you go quads, you can compare the quality of the MAP signal for various throttle openings.. another thing that might be odd is accel enrich.. IF toyota uses TPS only for that, since small throttle changes are actually big (relative to the single throttle) and so there may be slightly lean transitions.. this may be a pain in the arse, but might be ok.. some motors require very little accel (my 4K was running 0.2seconds of up to 8ms enrichment for snapped open throttle.. not much.. was happy with 1-2ms for most throttle changes) i reckon stuff everyone and give it a go ... if you work out a testing route so that you can relate the TPS, RPM and MAP to certain drivign conditions, then drive the same route later with a wideband in.. it ay not be that hard at all esp if you are only pulling fuel out.... anyhoo, my thoughts... Cya, Stewart [Report message to a moderator]

	Subject	Poster	Date
	16v 4AGE quad throttles - stock ECU shortcomings	demuire	Fri, 08 July 2005 22:30
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	J-AE86	Fri, 08 July 2005 23:13
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	ViPeR_NiPPleX	Sat, 09 July 2005 02:58
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 00:14
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	takai	Sat, 09 July 2005 06:05
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	c2888	Sat, 09 July 2005 11:52
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 12:23
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	c2888	Sat, 09 July 2005 12:47
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 13:10
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	ae86drift	Sat, 09 July 2005 13:35
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Sat, 09 July 2005 14:03
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	improvedae86	Sat, 09 July 2005 14:00
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 16:34
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Sat, 09 July 2005 16:51
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 16:53
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sat, 09 July 2005 17:01
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sun, 10 July 2005 04:57
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	bantech	Sun, 10 July 2005 05:31
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sun, 10 July 2005 13:10
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Mon, 11 July 2005 02:46
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Mon, 11 July 2005 02:49
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	Ben Wilson	Sun, 10 July 2005 22:26
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	takai	Sun, 10 July 2005 22:57
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sun, 10 July 2005 23:12
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	Ben Wilson	Sun, 10 July 2005 23:20
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sun, 10 July 2005 23:29
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Sun, 10 July 2005 23:32
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	takai	Mon, 11 July 2005 00:03
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Mon, 11 July 2005 00:16
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	Ben Wilson	Mon, 11 July 2005 00:22
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Mon, 11 July 2005 04:46
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Mon, 11 July 2005 05:13
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Mon, 11 July 2005 05:21
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	oldcorollas	Mon, 11 July 2005 05:23
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	Ben Wilson	Mon, 11 July 2005 05:23
	Re: 16v 4AGE quad throttles - stock ECU shortcomings	demuire	Mon, 11 July 2005 05:27

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