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Location: Parra
Registered: January 2005
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injectors 4age
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Wed, 04 May 2005 05:44
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im thinking of putting larger injectors in my 100kw 4age
whats the standard size? what size do u reccomend i put in? would it be much noticable??? would it take more fuel??
thank you
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Registered: May 2002
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Re: injectors 4age
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Wed, 04 May 2005 05:49

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Why do you want bigger injectors? What have you done to reach the limit of the standard ones?
There are plenty out there that fit the 4AGE rail but it's not worth bothering with if you have not increased the fuel demand of the engine through mods or if yuo are running a standard ecu.
Quote: | would it be much noticable???
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it would be very much happy fun if factory ecu stay inboard too many fuels will be happy spent in combustion chamber. program ecu to speak happy talk to many injectors
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Location: Parra
Registered: January 2005
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Re: injectors 4age
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Wed, 04 May 2005 05:58

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pod filter
2 n quarter inch full exhaust, high flow cat, 2.5 inch dump pipe
extractors
well besides injectors what else could i do?......
chasing more power
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Location: brisvegas
Registered: August 2004
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Re: injectors 4age
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Wed, 04 May 2005 06:00

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well the obvious thing would be 4agze injectors..being 365cc..the ge ones are about 185cc (i think) but why would you bother? unless you have a new ECU to run them..i would suggest getting an SAFC and some dyno time..
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Registered: May 2002
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Re: injectors 4age
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Wed, 04 May 2005 06:04

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Quote: | well besides injectors what else could i do?......
chasing more power
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Cool, that was some more useful info.
Now a change of injectors WILL NOT yield more power on their own in you case. I gather you are still running the standard ECU? If so then a change to larger injectors will just make you car run like shit and LOSE power, it will run too rich.
I would suggest cam as yuor next step in the chase for more power, just something mild that will keep your factory ECU happy. After that mod you would need to start looking at opening up the the engine and raising compression, port work, more aggressive cams, aftermarket ECU etc. Even quad throttles if you are real keen.
You have many more mods to go before you will need bigger injectors.
We threw some bigger injectors into a factory ECU 4AGZE once just ofr interest and it ran like shit, as expected 
EDIT: I am lazy, do a google search for Bill Sherwoods site that has more 4AGE info than you will ever need. That should answer all your questions about getting more power.
[Updated on: Wed, 04 May 2005 06:06]
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Location: brisvegas
Registered: August 2004
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Re: injectors 4age
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Wed, 04 May 2005 06:05

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ke382TG wrote on Wed, 04 May 2005 15:49 |
it would be very much happy fun if factory ecu stay inboard too many fuels will be happy spent in combustion chamber. program ecu to speak happy talk to many injectors
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translation..the ecu won't know it's running big injectors..so your engine will run mega rich..like to the point where it doesn't run rich..so unless you have an aftermarket ecu don't do it..
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Location: brisvegas
Registered: August 2004
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Re: injectors 4age
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Wed, 04 May 2005 06:07

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yeh, what he said..
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Location: Parra
Registered: January 2005
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Location: Sydney
Registered: September 2004
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Location: Parra
Registered: January 2005
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Re: injectors 4age
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Wed, 04 May 2005 13:01

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i ddint know i was a comedian....
i thought a cheaper second hand ecu would cost that much ? , i guess not...
wats bigport? isnt that the 86kw 4age...wouldnt my car have bigger cams than that??
would cam's make much of a difference in performance? higher revs , low down , mid ?>??
and my exhaust is that the best option ??
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Location: Sydney
Registered: September 2004
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Re: injectors 4age
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Wed, 04 May 2005 13:12

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Seriously dude... do some research before you ask the questions. Although your comedic acts do amuse some, there are many easily irritable people on toymods . Read through this website:
http://www.billzilla.org/4agstock.htm
Cams make a difference depending on the duration and lift you select. No your car does not have bigger cams than the bigport. Bigports are 240 duration, 7.5mm lift. Yours will be 232 with 7.1 lift.
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Registered: May 2002
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Location: Sydney
Registered: May 2002
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Re: injectors 4age
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Thu, 05 May 2005 01:04

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OUTRUN definately do some research
my engine runs standard 100KW 250cc injectors, with Wade 800A cam profile and TRD 304 Deg profile is no problem.
May be a problem at 9000RPM, but i set the rev limit to 8500.

Ben.
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Location: Sydney
Registered: September 2004
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Re: injectors 4age
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Thu, 05 May 2005 12:29
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OT but DAMN that's a tight squeeze with those quads and the brake booster!
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