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stradlater Forums Junkie Location: Arthurs Creek, Victoria Registered: May 2002	Re: 1G Single Turbo !! Sat, 15 November 2003 11:36 You might be right about the 1jz, but I thought it was a ct26 single turbo. As for the blow off valve. When your throttle body snaps shut, all the pressurized air in the piping has to get out somewhere, as I'm sure your already aware. Now, just after you've snapped your throttle body shut, there's a fair chance your turbo is at either the peak of it's spinning speed(RPM) for your motor, or it's close on it's way up there. When you have all that pressurized air forcing it's way back out your piping, it goes backwards out through the turbo compressor cover. This air pushes back against the compressor blades, hence that 'choofing' noise. The air forcing back in the opposite direction to that which the compressor wheel is spinning, slows it down, by putting a large force on it. If you let all that pressurized air out somewhere else, the compressor wheel doesn't have all that force against it, and hence just slows down of it's own accord, which means it's going to be ready at a relatively higher RPM when you get back on the gas, rather than having already been slowed down by all that pressurized air forcing it's way out. Ofcourse, the problem is multiplied the higher the boost pressure that you run. Make sense? [Report message to a moderator]

	Subject	Poster	Date
	1G Single Turbo !!	dispatcher	Thu, 13 November 2003 02:49
	Re: 1G Single Turbo !!	Cyber-punk	Thu, 13 November 2003 02:56
	Re: 1G Single Turbo !!	CrAiGzEE	Thu, 13 November 2003 03:16
	Re: 1G Single Turbo !!	CrAiGzEE	Thu, 13 November 2003 03:17
	Re: 1G Single Turbo !!	justcallmefrank	Thu, 13 November 2003 09:57
	Re: 1G Single Turbo !!	CrAiGzEE	Thu, 13 November 2003 10:31
	Re: 1G Single Turbo !!	justcallmefrank	Thu, 13 November 2003 12:27
	Re: 1G Single Turbo !!	Dabbid	Thu, 13 November 2003 13:42
	Re: 1G Single Turbo !!	justcallmefrank	Thu, 13 November 2003 13:43
	Re: 1G Single Turbo !!	CrAiGzEE	Thu, 13 November 2003 11:14
	Re: 1G Single Turbo !!	E30-323ti	Thu, 13 November 2003 21:18
	Re: 1G Single Turbo !!	justcallmefrank	Thu, 13 November 2003 23:58
	Re: 1G Single Turbo !!	dispatcher	Fri, 14 November 2003 08:26
	Re: 1G Single Turbo !!	dcving	Fri, 14 November 2003 09:52
	Re: 1G Single Turbo !!	CrAiGzEE	Fri, 14 November 2003 11:53
	Re: 1G Single Turbo !!	Fattony	Sat, 15 November 2003 02:35
	Re: 1G Single Turbo !!	punkdefender	Wed, 05 May 2004 22:07
	Re: 1G Single Turbo !!	stradlater	Sat, 15 November 2003 05:37
	Re: 1G Single Turbo !!	justcallmefrank	Sat, 15 November 2003 10:17
	Re: 1G Single Turbo !!	justcallmefrank	Sat, 15 November 2003 10:18
	Re: 1G Single Turbo !!	stradlater	Sat, 15 November 2003 11:36
	Re: 1G Single Turbo !!	justcallmefrank	Sat, 15 November 2003 11:59
	Re: 1G Single Turbo !!	TOY77	Sat, 15 November 2003 13:47
	Re: 1G Single Turbo !!	Dabbid	Sun, 16 November 2003 01:32
	Re: 1G Single Turbo !!	Bugman	Sun, 16 November 2003 01:42
	Re: 1G Single Turbo !!	CrAiGzEE	Sun, 16 November 2003 03:26
	Re: 1G Single Turbo !!	Fattony	Sun, 16 November 2003 07:32
	Re: 1G Single Turbo !!	TOY77	Sun, 16 November 2003 21:23
	Re: 1G Single Turbo !!	Dabbid	Mon, 17 November 2003 01:20
	Re: 1G Single Turbo !!	Dabbid	Sat, 22 November 2003 09:16
	Re: 1G Single Turbo !!	CrAiGzEE	Sun, 23 November 2003 04:28
	Re: 1G Single Turbo !!	draven	Sat, 22 November 2003 10:04
	Re: 1G Single Turbo !!	Assailant	Tue, 09 December 2003 09:35
	Re: 1G Single Turbo !!	Dabbid	Tue, 09 December 2003 10:56
	Re: 1G Single Turbo !!	2Lsupra	Tue, 09 December 2003 12:56
	Re: 1G Single Turbo !!	Dabbid	Tue, 09 December 2003 19:54
	Re: 1G Single Turbo !!	Aliencorolla	Wed, 10 December 2003 10:12
	Re: 1G Single Turbo !!	Aliencorolla	Wed, 10 December 2003 11:08
	Re: 1G Single Turbo !!	CrAiGzEE	Wed, 10 December 2003 10:53
	Re: 1G Single Turbo !!	gold28	Thu, 11 December 2003 03:16
	Re: 1G Single Turbo !!	Bugman	Thu, 11 December 2003 04:33
	Re: 1G Single Turbo !!	gold28	Thu, 11 December 2003 05:10
	Re: 1G Single Turbo !!	Aliencorolla	Thu, 11 December 2003 06:49
	Re: 1G Single Turbo !!	gold28	Thu, 11 December 2003 20:28
	Re: 1G Single Turbo !!	2Lsupra	Fri, 12 December 2003 02:08
	Re: 1G Single Turbo !!	CrAiGzEE	Sat, 13 December 2003 14:02
	Re: 1G Single Turbo !!	dispatcher	Tue, 20 January 2004 11:35
	Re: 1G Single Turbo !!	Chris Davey	Tue, 20 January 2004 11:49
	Re: 1G Single Turbo !!	twinturbo86	Wed, 21 January 2004 02:22
	Re: 1G Single Turbo !!	E30-323ti	Wed, 21 January 2004 02:28
	Re: 1G Single Turbo !!	dispatcher	Mon, 26 January 2004 08:13
	Re: 1G Single Turbo !!	Siktoy ra23	Wed, 21 January 2004 12:11
	Re: 1G Single Turbo !!	twinturbo86	Sun, 25 January 2004 22:46
	Re: 1G Single Turbo !!	walkie	Thu, 06 May 2004 00:49
	Re: 1G Single Turbo !!	punkdefender	Thu, 06 May 2004 11:30
	Re: 1G Single Turbo !!	SUPRA MAN	Sun, 18 July 2004 16:09
	Re: 1G Single Turbo !!	Siktoy ra23	Mon, 19 July 2004 11:56
	Re: 1G Single Turbo !!	EvilJack	Mon, 19 July 2004 12:05

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