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SUPRAGTE Forums Junkie Location: North Sydney Registered: May 2002	Re: SOME V8 conversion questions Mon, 06 January 2003 11:50 The headgaskets arnt the problem. It's the tuning if you know anything about 7M's. The blown head gaskets are the result of detonation and morons not realising the car is pinging its tits off. The factory ignition timing to too high when you run high boost. The alloy composition in toyota heads are quite soft if you have dealt with them. In the combustion chamber dome there are too many sharp edges that need too be removed if your going for over 450hp.The soft metal acts exactly like glow plugs in a diesel and pre-ignites the fuel causing detonation. With some proper tuning there is nothing wrong with a stock 7mgte up to 450hp. I'm getting 360hp out of mine with the headgasket that was put on it back in......well back in 1989 at the factory. It's all in the tuning and a bit of knowledge. Quote: Pushrod V8's aren't necessarily 'crap', they have their place Pushrod engines have their place. In history. Their emission outputs are ludicrous! The current Holden pushrod V6(and in their 2003 Bommodore) wouldn't have passed 1996 Californian emmissions to enable them to sell the rod boxes. Emission outputs are greatly reduced with OHC's. Toyota's in Cal are now running OBD2(On board diagnostics V2) which monitors individual cylinder EGT's for better emissions. I appreciate things, especially history and believe thats where pushrods belong, for the sake of the greenhouse gases atleast. [Report message to a moderator]

	Subject	Poster	Date
	SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 11:20
	Re: SOME conversion questions	gianttomato	Wed, 01 January 2003 11:31
	Re: SOME conversion questions	ROBBO_ma61	Wed, 01 January 2003 11:33
	Re: SOME conversion questions	ROBBO_ma61	Wed, 01 January 2003 11:36
	Re: SOME conversion questions	gianttomato	Wed, 01 January 2003 11:45
	Re: SOME conversion questions	suprav8	Wed, 01 January 2003 11:42
	Re: SOME conversion questions	ROBBO_ma61	Wed, 01 January 2003 11:46
	Re: SOME V8 conversion questions	suprav8	Wed, 01 January 2003 12:04
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 12:10
	Re: SOME V8 conversion questions	TA22-3SGTE	Wed, 01 January 2003 12:20
	Re: SOME V8 conversion questions	suprav8	Wed, 01 January 2003 12:23
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 12:31
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 12:41
	Re: SOME V8 conversion questions	SUPRAGTE	Wed, 01 January 2003 12:49
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 12:52
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 12:57
	Re: SOME V8 conversion questions	TA22-3SGTE	Wed, 01 January 2003 12:56
	Re: SOME V8 conversion questions	ROBBO_ma61	Wed, 01 January 2003 13:00
	Re: SOME V8 conversion questions	SUPRAGTE	Wed, 01 January 2003 13:09
	Re: SOME V8 conversion questions	TA22-3SGTE	Wed, 01 January 2003 13:20
	Re: SOME V8 conversion questions	CamZH	Wed, 01 January 2003 21:22
	Re: SOME V8 conversion questions	ROBBO_ma61	Thu, 02 January 2003 01:12
	Re: SOME V8 conversion questions	gianttomato	Thu, 02 January 2003 06:21
	Re: SOME V8 conversion questions	biased99	Thu, 02 January 2003 07:58
	Re: SOME V8 conversion questions	SUPRAGTE	Thu, 02 January 2003 06:15
	Re: SOME V8 conversion questions	ROBBO_ma61	Thu, 02 January 2003 08:32
	Re: SOME V8 conversion questions	ROBBO_ma61	Thu, 02 January 2003 08:34
	Re: SOME V8 conversion questions	Norbie	Thu, 02 January 2003 22:50
	Re: SOME V8 conversion questions	gianttomato	Thu, 02 January 2003 08:38
	Re: SOME V8 conversion questions	CamZH	Thu, 02 January 2003 08:55
	Re: SOME V8 conversion questions	ROBBO_ma61	Thu, 02 January 2003 09:21
	Re: SOME V8 conversion questions	Blacki	Fri, 03 January 2003 00:41
	Re: SOME V8 conversion questions	SUPRAGTE	Fri, 03 January 2003 13:43
	Re: SOME V8 conversion questions	ROBBO_ma61	Fri, 03 January 2003 13:47
	Re: SOME V8 conversion questions	gianttomato	Fri, 03 January 2003 23:16
	Re: SOME V8 conversion questions	mrshin	Mon, 06 January 2003 10:59
	Re: SOME V8 conversion questions	suprav8	Mon, 06 January 2003 11:50
	Re: SOME V8 conversion questions	SUPRAGTE	Mon, 06 January 2003 11:50
	Re: SOME V8 conversion questions	SirVH	Mon, 06 January 2003 12:27
	Re: SOME V8 conversion questions	suprav8	Mon, 06 January 2003 11:56

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