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Chris Davey Forums Junkie Location: sunny coast, qld Registered: October 2002	Re: 8psi extra, 10rwkw extra? Sat, 16 July 2005 02:42 VeeP wrote on Sat, 16 July 2005 10:56 Big boost increases followed by small power gains are indicative of the turbo reaching and surpassing maximum efficiency. Im not familiar with a ta45, but im sure it cant be smaller than a GT2540, in which case i would doubt its your turbo becoming inefficient. Im pretty sure the early VVTi systems can only change the inlet cam timing, usually from like 18deg to 8deg or something, and this is to extend the torque curve, and flatten it off at its peak instead of letting it drop off. Check that your cam timing is infact correct. Make sure there are no boost leaks (u may have inadvertently countered for these during the tuning). Perhaps you can infact run more boost on the turbo and it is yet to become highly efficient? Btw, having a hot day will make a HUGE difference to power output, especially at high boost, and my inlet temps are far lower than urs. . . on my IG-GTE (zorst + 15pounds boost + intake) i am usually sitting on 35 - 38 deg inlet temps on a 18 degree day. . . look into that too! Can ur mechanic not make any suggestions? Turbo is much larger that a T25 series turbo. It is a 65mm compressor wheel. Because of how large it is I wouldn't have thought it would be out of its efficiency. And add to the fact that HKS turbos are supposed to be modified Garrett items that are meant to work at higher boost levels. My engine doesn't have VVTI but I will check cam timing and check for any boost leaks. I suppose it is possible that the turbo isn't in its efficieny zone yet but I suppose I am just a bit scared of running much more boost. The day wasn't actually that hot but the engine bay got pretty hot very quickly and the power dropped immediately after this happened. Will check inlet air temps when I am out on the road. Edit: oh yeah mechanic said must be a crap turbo. [Updated on: Sat, 16 July 2005 03:03] [Report message to a moderator]

	Subject	Poster	Date
	8psi extra, 10rwkw extra?	Chris Davey	Fri, 15 July 2005 23:33
	Re: 8psi extra, 10rwkw extra?	Rallystanza	Fri, 15 July 2005 23:44
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 00:04
	Re: 8psi extra, 10rwkw extra?	bored	Sat, 16 July 2005 00:50
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 02:37
	Re: 8psi extra, 10rwkw extra?	VeeP	Sat, 16 July 2005 00:56
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 02:42
	Re: 8psi extra, 10rwkw extra?	Special Ed	Sat, 16 July 2005 01:14
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 02:43
	Re: 8psi extra, 10rwkw extra?	Special Ed	Sat, 16 July 2005 01:17
	Re: 8psi extra, 10rwkw extra?	Soarer	Tue, 19 July 2005 07:57
	Re: 8psi extra, 10rwkw extra?	Mr DOHC	Tue, 19 July 2005 10:48
	Re: 8psi extra, 10rwkw extra?	82MKII	Tue, 19 July 2005 11:05
	Re: 8psi extra, 10rwkw extra?	Mr DOHC	Tue, 19 July 2005 11:33
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 03:25
	Re: 8psi extra, 10rwkw extra?	Allan	Sat, 16 July 2005 04:21
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 04:25
	Re: 8psi extra, 10rwkw extra?	Allan	Sat, 16 July 2005 04:44
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 05:33
	Re: 8psi extra, 10rwkw extra?	Allan	Sat, 16 July 2005 05:47
	Re: 8psi extra, 10rwkw extra?	KOFFEE-BLACK	Sat, 16 July 2005 05:56
	Re: 8psi extra, 10rwkw extra?	mc68	Sat, 16 July 2005 16:04
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 06:27
	Re: 8psi extra, 10rwkw extra?	Allan	Sat, 16 July 2005 06:37
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 08:31
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 08:36
	Re: 8psi extra, 10rwkw extra?	thechuckster	Sat, 16 July 2005 08:49
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 09:11
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 09:17
	Re: 8psi extra, 10rwkw extra?	oldcorollas	Sat, 16 July 2005 11:07
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sun, 17 July 2005 02:37
	Re: 8psi extra, 10rwkw extra?	Allan	Sun, 17 July 2005 03:28
	Re: 8psi extra, 10rwkw extra?	improvedae86	Sat, 16 July 2005 11:15
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 16 July 2005 15:08
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sun, 17 July 2005 02:40
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sun, 17 July 2005 09:19
	Re: 8psi extra, 10rwkw extra?	oldcorollas	Sun, 17 July 2005 13:49
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sun, 17 July 2005 21:19
	Re: 8psi extra, 10rwkw extra?	Mr DOHC	Mon, 18 July 2005 09:54
	Re: 8psi extra, 10rwkw extra?	1JZ.747	Tue, 19 July 2005 01:30
	Re: 8psi extra, 10rwkw extra?	oldcorollas	Tue, 19 July 2005 02:36
	Re: 8psi extra, 10rwkw extra?	Kyosho	Sun, 17 July 2005 06:26
	Re: 8psi extra, 10rwkw extra?	E30-323ti	Sun, 17 July 2005 07:32
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Mon, 18 July 2005 22:35
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 03:00
	Re: 8psi extra, 10rwkw extra?	JustenGT4	Tue, 19 July 2005 03:40
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 04:07
	Re: 8psi extra, 10rwkw extra?	JustenGT4	Tue, 19 July 2005 04:50
	Re: 8psi extra, 10rwkw extra?	Allan	Tue, 19 July 2005 04:15
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 04:19
	Re: 8psi extra, 10rwkw extra?	Allan	Tue, 19 July 2005 04:21
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 04:28
	Re: 8psi extra, 10rwkw extra?	Allan	Tue, 19 July 2005 04:30
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 04:42
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 04:57
	Re: 8psi extra, 10rwkw extra?	JustenGT4	Tue, 19 July 2005 05:27
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 05:36
	Re: 8psi extra, 10rwkw extra?	bbaacchhyy	Tue, 19 July 2005 05:51
	Re: 8psi extra, 10rwkw extra?	oldcorollas	Tue, 19 July 2005 06:01
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 06:10
	Re: 8psi extra, 10rwkw extra?	oldcorollas	Tue, 19 July 2005 06:51
	Re: 8psi extra, 10rwkw extra?	MS-75	Tue, 19 July 2005 07:22
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 10:43
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Tue, 19 July 2005 21:52
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 02:36
	Re: 8psi extra, 10rwkw extra?	1JZ.747	Wed, 20 July 2005 02:41
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 03:01
	Re: 8psi extra, 10rwkw extra?	1JZ.747	Wed, 20 July 2005 05:21
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 05:31
	Re: 8psi extra, 10rwkw extra?	gianttomato	Wed, 20 July 2005 05:38
	Re: 8psi extra, 10rwkw extra?	gianttomato	Wed, 20 July 2005 05:45
	Re: 8psi extra, 10rwkw extra?	THE WITZL	Wed, 20 July 2005 04:38
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 04:43
	Re: 8psi extra, 10rwkw extra?	1JZ.747	Wed, 20 July 2005 05:34
	Re: 8psi extra, 10rwkw extra?	Merudo	Wed, 20 July 2005 05:37
	Re: 8psi extra, 10rwkw extra?	1JZ.747	Wed, 20 July 2005 06:08
	Re: 8psi extra, 10rwkw extra?	THE WITZL	Wed, 20 July 2005 07:25
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 07:28
	Re: 8psi extra, 10rwkw extra?	Mr DOHC	Wed, 20 July 2005 08:16
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Wed, 20 July 2005 11:50
	Re: 8psi extra, 10rwkw extra?	Chris Davey	Sat, 23 July 2005 02:49
	Re: 8psi extra, 10rwkw extra?	MS-75	Sat, 23 July 2005 06:20

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