Tech:Engine/K Series/EFI - Revision history

Irokin at 02:25, 16 September 2012

2012-09-16T02:25:50Z

← Older revision		Revision as of 02:25, 16 September 2012
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	[http://www.rollaclub.com/ Rollaclub]		[http://www.rollaclub.com/ Rollaclub]
			[[Category:K Motor]]

MedicineMan at 08:29, 7 September 2008

2008-09-07T08:29:38Z

← Older revision		Revision as of 08:29, 7 September 2008
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	Back to [http://www.rollaclub.com/faq/index.php?title=Main_Page#K_Series K Series]		Back to [http://www.rollaclub.com/faq/index.php?title=Main_Page#K_Series K Series]

	Back to [http://www.rollaclub.com/~~wiki~~/index.php?title=Main_Page Main Page]		Back to [http://www.rollaclub.com/faq/index.php?title=Main_Page Main Page]

	[http://www.rollaclub.com/ Rollaclub]		[http://www.rollaclub.com/ Rollaclub]

MedicineMan at 06:26, 9 June 2008

2008-06-09T06:26:55Z

← Older revision		Revision as of 06:26, 9 June 2008
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	The design itself is quite innovative but prone to some design weaknesses which should be considered before you decide to use a 4KE injection setup on an engine that will be built for big power. A 4K-E is generally fine to use up to about 90 Horsepower (measured at the flywheel) on a naturally aspirated engine. With a forced induction engine you may be able to milk another 20 horsepower out of the 4KE but the restriction lies in the exhaust half of the head, not so much inlet side on a forced induction (Turbocharged, Supercharged, Nitrous Oxide) engines.		The design itself is quite innovative but prone to some design weaknesses which should be considered before you decide to use a 4KE injection setup on an engine that will be built for big power. A 4K-E is generally fine to use up to about 90 Horsepower (measured at the flywheel) on a naturally aspirated engine. With a forced induction engine you may be able to milk another 20 horsepower out of the 4KE but the restriction lies in the exhaust half of the head, not so much inlet side on a forced induction (Turbocharged, Supercharged, Nitrous Oxide) engines.


	Points to consider when building a 4K-E for bigger power		Points to consider when building a 4K-E for bigger power

MedicineMan at 06:26, 9 June 2008

2008-06-09T06:26:33Z

← Older revision		Revision as of 06:26, 9 June 2008
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	The design itself is quite innovative but prone to some design weaknesses which should be considered before you decide to use a 4KE injection setup on an engine that will be built for big power. A 4K-E is generally fine to use up to about 90 Horsepower (measured at the flywheel) on a naturally aspirated engine. With a forced induction engine you may be able to milk another 20 horsepower out of the 4KE but the restriction lies in the exhaust half of the head, not so much inlet side on a forced induction (Turbocharged, Supercharged, Nitrous Oxide) engines.		The design itself is quite innovative but prone to some design weaknesses which should be considered before you decide to use a 4KE injection setup on an engine that will be built for big power. A 4K-E is generally fine to use up to about 90 Horsepower (measured at the flywheel) on a naturally aspirated engine. With a forced induction engine you may be able to milk another 20 horsepower out of the 4KE but the restriction lies in the exhaust half of the head, not so much inlet side on a forced induction (Turbocharged, Supercharged, Nitrous Oxide) engines.

			Points to consider when building a 4K-E for bigger power

	~~Points to consider when building a 4K-E for bigger power~~

	* Injector Size. These injectors are quite small and will require upgrading to larger sizes to ''support'' increased output from the EFI setup		* Injector Size. These injectors are quite small and will require upgrading to larger sizes to ''support'' increased output from the EFI setup

MedicineMan at 06:25, 9 June 2008

2008-06-09T06:25:14Z

← Older revision		Revision as of 06:25, 9 June 2008
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	KP60 series Starlets which were delivered in America, Europe, Japan and New Zealand came with the 4K-E engine, sporting a blistering 1290cc of displacement. The EFI system consisted of very long intake runners so that the throttle body could be located further away from the exhaust manifold, which oddly sits on top of the rocker cover.		KP60 series Starlets which were delivered in America, Europe, Japan and New Zealand came with the 4K-E engine, sporting a blistering 1290cc of displacement. The EFI system consisted of very long intake runners so that the throttle body could be located further away from the exhaust manifold, which oddly sits on top of the rocker cover.


	[[Image:4ketop.jpg]]		[[Image:4ketop.jpg]]


	The oil cap filler neck had to be extended about ~60mm (~2 inches) or so taller to clear these runners as it is located at the rear of the engine on the 4K-E. If you get a 4K-E injection setup DONT FORGET THE ROCKER COVER otherwise you'll never get oil into it without hassle.		The oil cap filler neck had to be extended about ~60mm (~2 inches) or so taller to clear these runners as it is located at the rear of the engine on the 4K-E. If you get a 4K-E injection setup DONT FORGET THE ROCKER COVER otherwise you'll never get oil into it without hassle.

MedicineMan at 11:51, 30 January 2008

2008-01-30T11:51:34Z

← Older revision		Revision as of 11:51, 30 January 2008
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	Points to consider when building a 4K-E for bigger power		Points to consider when building a 4K-E for bigger power

	* Injector Size. These injectors are quite small and will require upgrading to larger sizes to ''support'' ~~incresed~~ output from the EFI setup		* Injector Size. These injectors are quite small and will require upgrading to larger sizes to ''support'' increased output from the EFI setup
	* 4KE Computer (ECU) isn't reprogrammable so any major change in engine output, induction, injection etc will most surely require some form of ~~Aftermarket~~ ECU.		* 4KE Computer (ECU) isn't reprogrammable so any major change in engine output, induction, injection etc will most surely require some form of aftermarket ECU.
	* Restriction of inlet design - Inlet at mouth is only ??mm wide.		* Restriction of inlet design - Inlet at mouth is only ??mm wide.
	* Length of runners :-		* Length of runners :-
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	Availability : It is common to see 4KE injection systems going on ~~ebay~~ for anywhere between AUS $50 - 250 depending on how complete they are and how many people have found out about the auction. Recently Australian's have discovered that many KP6x series starlets are coming to the end of their lifespan in New Zealand and I know that I ~~personallt~~ hear of about ~10 units per year are being imported into Australia with that number steadily increasing.		Availability : It is common to see 4KE injection systems going on eBay for anywhere between AUS $50 - 250 depending on how complete they are and how many people have found out about the auction. Recently Australian's have discovered that many KP6x series starlets are coming to the end of their lifespan in New Zealand and I know that I personally hear of about ~10 units per year are being imported into Australia with that number steadily increasing.

			See: http://www.rollaclub.com/board/index.php?showtopic=17832

	Troubleshooting : After many years of searching, I am pleased to announce that ~~Rollaclub~~ now hosts an electronic (Adobe PDF) version of the KP6x Starlet "EFI" manual on our server. This was scanned with many thanks to our friends in the USA and can be located in the Reference section of this FAQ : [[http://www.rollaclub.com/faq/index.php?title=Main_Page#Reference_Material Reference Section]]
			Troubleshooting : After many years of searching, I am pleased to announce that rollaclub now hosts an electronic (Adobe PDF) version of the KP6x Starlet "EFI" manual on our server. This was scanned with many thanks to our friends in the USA and can be located in the Reference section of this FAQ : [[http://www.rollaclub.com/faq/index.php?title=Main_Page#Reference_Material Reference Section]]


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	With a bonus for people with KE** chassis id'd cars, these engines are a much more straight forward "bolt-in" option (compared with ~~Twincam~~ installations) with the promise of Bigger Torque, Bigger Power and the best benefit of EFI !		With a bonus for people with KExx chassis id'd cars, these engines are a much more straight forward "bolt-in" option (compared with Twin cam installations) with the promise of Bigger Torque, Bigger Power and the best benefit of EFI !


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	Availability : It is becoming more common to hear about them now, but mostly people steer clear of the "truck" engine :) I would love to hear from other people using 4K-E and 7KE series engines in ''whatever'' application as it interests me quite a bit. Once again, these sell on ~~ebay~~ for varying amounts and at one stage or another, some of our members have owned / played with a 7KE setup.		Availability : It is becoming more common to hear about them now, but mostly people steer clear of the "truck" engine :) I would love to hear from other people using 4K-E and 7KE series engines in ''whatever'' application as it interests me quite a bit. Once again, these sell on eBay for varying amounts and at one stage or another, some of our members have owned / played with a 7KE setup.

	Here is a link to a PDF file of a 7K-E setup that sold on ~~ebay~~, showing that there is much demand for EFI setups [http://www.rollaclub.com/hosted/7ke-ebay.PDF 7KE on ~~Ebay~~]		Here is a link to a PDF file of a 7K-E setup that sold on eBay, showing that there is much demand for EFI setups [http://www.rollaclub.com/hosted/7ke-ebay.PDF 7KE on eBay]

MedicineMan at 11:46, 30 January 2008

2008-01-30T11:46:45Z

← Older revision		Revision as of 11:46, 30 January 2008
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	Not only that, but I know that some our very friendly members (the "TRD" Brothers) have recently purchased a Toyota FACTORY manual for the 4KE KP Starlets and they intend on scanning it and sharing very shortly. It covers everything not just the EFI system in the 4KE PDF guide above.		Not only that, but I know that some our very friendly members (the "TRD" Brothers) have recently purchased a Toyota FACTORY manual for the 4KE KP Starlets and they intend on scanning it and sharing very shortly. It covers everything not just the EFI system in the 4KE PDF guide above.
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	== 7K-E ==		== 7K-E ==

MedicineMan at 11:44, 30 January 2008

2008-01-30T11:44:54Z

@@ Line 135: / Line 135: @@
 This is all I can think of right now, please contact me to help correct errors or to add some information of your own.
 Cheers
---[[User:Grimwolge|Grimwolge]] 10:22, 18 Jul 2005 (EST)

Irokin at 11:25, 11 October 2007

2007-10-11T11:25:19Z

← Older revision		Revision as of 11:25, 11 October 2007
Line 24:		Line 24:
	* 4KE Computer (ECU) isn't reprogrammable so any major change in engine output, induction, injection etc will most surely require some form of Aftermarket ECU.		* 4KE Computer (ECU) isn't reprogrammable so any major change in engine output, induction, injection etc will most surely require some form of Aftermarket ECU.
	* Restriction of inlet design - Inlet at mouth is only ??mm wide.		* Restriction of inlet design - Inlet at mouth is only ??mm wide.
	* Length of runners - ~~may result in air/fuel mixture "pooling" back into liquid fuel before it hits the combustion chamber which will mess with air/fuel ratios.~~		* Length of runners :-
	* Runners prone to "heat soak"		* Runners prone to "heat soak"
	* Restriction of head itself - K series heads are not ~~reknowned~~ for attaining decent flow rates.		* Restriction of head itself - K series heads are not renown for attaining decent flow rates.
	* Airflow meter - 4KE uses and airflow meter to show the ECU air/fuel ratios, better airflow would be found by ditching this and converting to a MAP sensor configuration.		* Airflow meter - 4KE uses and airflow meter to show the ECU air/fuel ratios, better airflow would be found by ditching this and converting to a MAP sensor configuration.

70.159.21.50: /* 4K-E */

2006-07-15T18:27:48Z

4K-E

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 == 7K-E ==