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new injectors 

 

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 Post subject: new injectors
Posted: Tue Jul 05, 2005 1:11 am 
Stock as a Rock
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i want ot get some bigger better injectors for my car but i dont know what brand or size to get. anyone?
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Posted: Tue Jul 05, 2005 1:14 am 
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What tuner or ecu do you have?? Is it running lean?

 

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Posted: Tue Jul 05, 2005 2:24 am 
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just stock at the moment.
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Posted: Tue Jul 05, 2005 11:50 am 
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Yea you'll have to leave std inj there.The ecu won't control or peg back inj pulse at low rpm...Besides in most6 cases they run rich...You could up the fuel presure? From 275 to XR6 300kps....

 

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As in ZOOM 126 edition
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Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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Posted: Wed Jul 06, 2005 12:55 am 
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how would i do that? new pump?
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Posted: Thu Jul 07, 2005 1:34 am 
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Ciggy_483 wrote:
how would i do that? new pump?


xr spec fuel regulator.

 

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Posted: Thu Jul 07, 2005 2:43 pm 
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Would that work for an au2??? or can i just replace my injectors to bigger ones???

 

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Posted: Thu Jul 07, 2005 2:51 pm 
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Screamer wrote:
Would that work for an au2??? or can i just replace my injectors to bigger ones???


You cant just bolt in bigger injectors with the stock ECU. I did it prior to installing my Motec.. and it was horrible!! Fuel consumption goes to the s**t, and you puff black smoke at idle, and basically everywhere else through the rev range.. and this was only with 24lb/hr!

I'm now running 30lb/hr injectors with an aftermarket ECU and shouldnt see any fuel consumption or idle quality issues.

If you want to get a little more pressure in there, go for the higher spec fuel reg, or go aftermarket/adjustable fuel reg.

Generally these 4L's run very rich on the factory tune anyhow, so I cant imagine why you'd want more fuel!

 

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Posted: Thu Jul 07, 2005 9:23 pm 
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if you put in an XR6 regulator do you need to change the injectors as well?
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Posted: Thu Jul 07, 2005 9:40 pm 
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nope, just bolt it in... but why bother, the stock one is fine for most cars here
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