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celicamad Forums Junkie Location: newcastle Registered: June 2002	Re: 1jz fuel questions Thu, 30 September 2004 09:41 This may help kw(at engine) x 8 = cc/min so pump kw rating is cc/min divided by 8 so if pump is 235 lph thats 3.91 lpm which is 3910 cc/min 3910/8 = 488.74 kw however it depends on the pumps rated pressure .so the flow rate may be measured at zero restriction a 3910 cc/min pump should flow around 3200 cc/min at 40 psi which would be 400 kw which is 536 h.p to convert engine h.p to rear wheel for TOYOTA (TRD estimates)manual multiply by 0.85 or auto multiply by 0.77 so for auto should be good for 300 kw @ wheels at worst The only reason to use a rising rate regulator is to squeeze more fuel through the injectors . with 550 cc injectors you would only want to use a rising rate regulator is if you need more than 6 x 550 cc injectors can flow or if you WITHOUT the advantage of an aftermarket engine managment system .want to increase fuel flow as boost increase therfore effectively altering the factory fuel map . forcing it to run richer as more boost is applied to convert injector flow to engine kw simply divide each injector flow by 7 then multiply by the number of cylinders SO 550 / 7 =78.57 * 6 = 471.4 kw @engine which is 362 rwkw if you are NOT going to exceed this you are better off with an adjustable but not rising rate regulator.this gives you the ability to vary the flow to suit With aftermarket managment you can simply use the ecu to set the fuel map . So a rising rate reg is best used on stock ecu . But only where MORE fuel is needed . [Updated on: Thu, 30 September 2004 09:46] [Report message to a moderator]

	Subject	Poster	Date
	1jz fuel questions	Chris Davey	Thu, 30 September 2004 03:02
	Re: 1jz fuel questions	Norbie	Thu, 30 September 2004 05:02
	Re: 1jz fuel questions	Bentt	Thu, 30 September 2004 06:05
	Re: 1jz fuel questions	poombah	Thu, 30 September 2004 06:49
	Re: 1jz fuel questions	Chris Davey	Thu, 30 September 2004 08:27
	Re: 1jz fuel questions	celicamad	Thu, 30 September 2004 09:41
	Re: 1jz fuel questions	celicamad	Thu, 30 September 2004 09:51
	Re: 1jz fuel questions	Chris Davey	Thu, 30 September 2004 09:21
	Re: 1jz fuel questions	Chris Davey	Thu, 30 September 2004 10:29

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