F.A.Q.    Register    Login    Home Members    Search

Toymods » General Car Talk » Crown Progress...(1st dyno session update) Show: Today's Posts  :: Show Polls  Email to friend

Author	Topic
MS-75 Regular Location: Adelaide Registered: June 2002	Re: Crown Progress... Tue, 14 June 2005 00:39 It’s a bit of a story actually. Initially when I built the manifold it was for a 1.00 T4 split-pulse turbine housing. I had seen on a few cars that the wastegate was only hooked into 1 of the two halves of the split-pulse manifold, and so tried it. The system worked fine. I then changed to the TRUST TD07 turbo, which had a dual A/R turbine housing-ie the rear split-pulse half of the housing was quite small, and the front quite big. I’m not certain, but I think this gives the unit a wider response range. Anyway, when it was dynoed, only venting the smaller of the two halves of the turbine housing wasn’t enough to control boost. We even pulled the spring out of the gate altogether and it was still boosting uncontrollably. The options were to either tap into the front runners and join them to the gate, or put a second gate in. My mate had a spare Garrett 32 so I just put that on as it was actually easier. On the dyno next session the twin gates gave rock solid control-ie almost nil spikes and almost flat line boost level. As I was using an old gate and a home made one, I figured that new gates were in order, and two TIAL 38s were cheaper than one TIAL 46mm gate. Also, having cause to think a fair bit about boost control, it became clear that the bigger the gate area and the bigger the actuator area the faster the response of the system would be-hence minimising boost spiking. (I know electronic controllers can eliminate spikes as well, but they are actuallymasking the slow response of bleed and restrictor type setups) I figured that by sticking with two gates and using a particular type of manual press. regulator that I could have fully adjustable boost (in sensitivity of 0.1 psi) at my fingertips in the engine bay when dyno tuning. (as opposed to using the boost control in the autronic which isn’t lightning fast to diddle with.) (Add to that I am now also the SA distributor of TIAL Wastegates and BOV’s……) And-because I can……….(looks trick) However, at the end of the day it isn’t a need to do thing-although for less $ you get better fine boost control than with one big gate. Oh-and Chris-I am responsible for approximately 0% of the welds visible…….. [Report message to a moderator]

	Subject	Poster	Date
	Crown Progress...(1st dyno session update)	MS-75	Wed, 01 June 2005 17:12
	Re: Crown Progress...	ra_28	Wed, 01 June 2005 23:07
	Re: Crown Progress...	Norbie	Wed, 01 June 2005 23:08
	Re: Crown Progress...	Skip	Thu, 02 June 2005 00:16
	Re: Crown Progress...	Cplus	Thu, 02 June 2005 18:59
	Re: Crown Progress...	Skip	Thu, 02 June 2005 23:42
	Re: Crown Progress...	lumpy	Fri, 03 June 2005 02:22
	Re: Crown Progress...	Cplus	Fri, 03 June 2005 09:36
	Re: Crown Progress...	Chris Davey	Thu, 02 June 2005 00:32
	Re: Crown Progress...	h3ff44	Thu, 02 June 2005 05:28
	Re: Crown Progress...	WantaTurbo	Thu, 02 June 2005 05:52
	Re: Crown Progress...	boris	Thu, 02 June 2005 06:16
	Re: Crown Progress...	Norbie	Thu, 02 June 2005 06:54
	Re: Crown Progress...	Chris Davey	Thu, 02 June 2005 06:57
	Re: Crown Progress...	draven	Thu, 02 June 2005 07:05
	Re: Crown Progress...	Chris Davey	Thu, 02 June 2005 11:12
	Re: Crown Progress...	nitephyre	Thu, 02 June 2005 11:21
	Re: Crown Progress...	Norbie	Fri, 03 June 2005 03:19
	Re: Crown Progress...	gianttomato	Fri, 03 June 2005 03:38
	Re: Crown Progress...	MS-75	Sun, 05 June 2005 15:11
	Re: Crown Progress...	Cplus	Sun, 05 June 2005 23:07
	Re: Crown Progress...	MS-75	Sun, 05 June 2005 23:53
	Re: Crown Progress...	Cplus	Mon, 06 June 2005 08:41
	Re: Crown Progress...	M.W.P.	Mon, 06 June 2005 16:41
	Re: Crown Progress...	Special Ed	Sun, 12 June 2005 12:46
	Re: Crown Progress...	MS-75	Mon, 13 June 2005 10:37
	Re: Crown Progress...	MS-75	Mon, 13 June 2005 14:01
	Re: Crown Progress...	MR 1JZ	Mon, 13 June 2005 14:27
	Re: Crown Progress...	Chris Davey	Mon, 13 June 2005 22:41
	Re: Crown Progress...	MS-75	Tue, 14 June 2005 00:39
	Re: Crown Progress...	MR 1JZ	Tue, 14 June 2005 00:44
	Re: Crown Progress...	1JZ.747	Tue, 14 June 2005 01:26
	Re: Crown Progress...	MS-75	Fri, 24 June 2005 13:07
	Re: Crown Progress...	smt_007	Fri, 24 June 2005 13:33
	Re: Crown Progress...	ZZT231	Fri, 24 June 2005 13:52
	Re: Crown Progress...(1st dyno session update)	MS-75	Tue, 28 June 2005 23:17
	Re: Crown Progress...(1st dyno session update)	MR 1JZ	Tue, 28 June 2005 23:27
	Re: Crown Progress...(1st dyno session update)	MS-75	Tue, 28 June 2005 23:43
	Re: Crown Progress...(1st dyno session update)	MR 1JZ	Tue, 28 June 2005 23:46
	Re: Crown Progress...(1st dyno session update)	1JZ.747	Tue, 28 June 2005 23:48
	Re: Crown Progress...(1st dyno session update)	Chris Davey	Wed, 29 June 2005 04:10
	Re: Crown Progress...(1st dyno session update)	WantaTurbo	Wed, 29 June 2005 04:40
	Re: Crown Progress...(1st dyno session update)	Corona RT142	Wed, 29 June 2005 04:44
	Re: Crown Progress...(1st dyno session update)	justcallmefrank	Wed, 29 June 2005 04:53
	Re: Crown Progress...(1st dyno session update)	MS-75	Wed, 29 June 2005 04:57
	Re: Crown Progress...(1st dyno session update)	Corona RT142	Wed, 29 June 2005 04:59
	Re: Crown Progress...(1st dyno session update)	justcallmefrank	Wed, 29 June 2005 05:00
	Re: Crown Progress...(1st dyno session update)	MS-75	Wed, 29 June 2005 05:12
	Re: Crown Progress...(1st dyno session update)	TheStitt	Wed, 29 June 2005 08:22
	Re: Crown Progress...(1st dyno session update)	Mr DOHC	Thu, 30 June 2005 07:19
	Re: Crown Progress...(1st dyno session update)	Chris Davey	Thu, 30 June 2005 07:45
	Re: Crown Progress...(1st dyno session update)	Chris Davey	Sun, 03 July 2005 22:37
	Re: Crown Progress...(1st dyno session update)	MS-75	Mon, 04 July 2005 02:24
	Re: Crown Progress...(1st dyno session update)	bbaacchhyy	Mon, 04 July 2005 02:36
	Re: Crown Progress...(1st dyno session update)	1JZ.747	Mon, 04 July 2005 02:37
	Re: Crown Progress...(1st dyno session update)	MS-75	Mon, 04 July 2005 02:44
	Re: Crown Progress...(1st dyno session update)	Chris Davey	Mon, 04 July 2005 02:51
	Re: Crown Progress...(1st dyno session update)	1JZ.747	Mon, 04 July 2005 02:52
	Re: Crown Progress...(1st dyno session update)	Chris Davey	Mon, 04 July 2005 03:03
	Re: Crown Progress...(1st dyno session update)	MS-75	Mon, 04 July 2005 03:04
	Re: Crown Progress...(1st dyno session update)	Mr DOHC	Mon, 04 July 2005 06:26
	Re: Crown Progress...(1st dyno session update)	1JZ.747	Mon, 04 July 2005 03:34
	Re: Crown Progress...(1st dyno session update)	MS-75	Mon, 04 July 2005 07:12
	Random Pictures.......	MS-75	Mon, 04 July 2005 11:34
	Re: Random Pictures.......	Mr DOHC	Tue, 05 July 2005 06:14
	Re: Crown Progress...(1st dyno session update)	MR 1JZ	Mon, 04 July 2005 12:51
	Re: Crown Progress...(1st dyno session update)	Ribfeast	Tue, 05 July 2005 07:13
	Re: Crown Progress...(1st dyno session update)	Special Ed	Tue, 05 July 2005 07:43
	Re: Crown Progress...(1st dyno session update)	Special Ed	Tue, 05 July 2005 07:44
	Re: Crown Progress...(1st dyno session update)	Skip	Tue, 05 July 2005 07:51
	Re: Crown Progress...(1st dyno session update)	Corona RT142	Tue, 05 July 2005 10:06
	Re: Crown Progress...(1st dyno session update)	MS-75	Tue, 05 July 2005 10:39
	Re: Crown Progress...(1st dyno session update)	Ribfeast	Wed, 06 July 2005 05:49

Previous Topic:	Crown at AIR Street Meet Videos
Next Topic:	*CAUTION* Not a Toyota but a hOt Audi

Powered by: FUDforum 2.3.8
Copyright ©2001-2003 Advanced Internet Designs Inc.