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Old 01-05-2013, 09:20 PM   #1
footinmouth
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Default 2rz injector question

I have 2rz , super charged, 5th injector, dastek piggy back ecu, 11 psi pulley ,Doug Thorley long tube header , free flow cat, rear 02 spaced out of the flow, almost no muffler, 3 inch pipe, intake with cone filter and no check engine light . I'd like to put bigger injectors in . Can I do this and how much bigger can I go ? pro's- con's, and will I need a rear 02 simulator . I'm thinking with all that stuff I'm only at 175 or so HP at the wheels . Thanks-John
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Old 01-05-2013, 11:43 PM   #2
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Default Re: 2rz injector question

With the additional injector you will not need larger than stock primary injectors. That is the point of the the additional injector.

You should get the AFR checked and see if the unichip needs to be adjusted or not.

If you do not have any cats and are getting the P-0420 code, the URD Sim can take care of that problem for you.


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Old 01-06-2013, 05:37 PM   #3
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Default Re: 2rz injector question

What is an AFR and who tunes the chip? Thanks -John
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Old 01-06-2013, 08:44 PM   #4
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Default Re: 2rz injector question

Quote:
Originally Posted by footinmouth View Post
What is an AFR and who tunes the chip? Thanks -John
AFR = Air-to-Fuel Ratio VERY important to monitor these ESPECIALLY while boosting, too lean and you melt pistons, too rich and you get backfiring and cylinder wash

this is the unit that i run
http://www.aemelectronics.com/wideba...fuel-gauge-25/

only unichip authorized dealer/installers can change/access the tune on the piggyback controller (verify this before taking my word, but this has been the general consensus that i have read)
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Old 01-08-2013, 08:12 PM   #5
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Default Re: 2rz injector question

Yikes ! thats alot of $$ - I'll have to keep my eyes peeled for a used one - Thanks John
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Old 01-08-2013, 08:15 PM   #6
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Default Re: 2rz injector question

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Originally Posted by footinmouth View Post
Yikes ! thats alot of $$ - I'll have to keep my eyes peeled for a used one - Thanks John
pay a lil now, save your engine now, wait and you could loose an engine...just sayin
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Old 01-09-2013, 05:08 AM   #7
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Default Re: 2rz injector question

Quote:
Originally Posted by footinmouth View Post
Yikes ! thats alot of $$ - I'll have to keep my eyes peeled for a used one - Thanks John
Amazon Amazon

Check out the link above!
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Old 01-09-2013, 05:43 AM   #8
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Default Re: 2rz injector question

You should not be doing any performance work on your motor, especially forced induction, without a wideband.
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Old 01-10-2013, 08:13 PM   #9
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Default Re: 2rz injector question

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Originally Posted by tacomatic1 View Post
You should not be doing any performance work on your motor, especially forced induction, without a wideband.
Why not ? How much is a WB and what does it do ? All the performance stuff has been on for about 125K with no problems and gets pushed to the rev. daily. 239k total .
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Old 01-11-2013, 04:52 AM   #10
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Default Re: 2rz injector question

Quote:
Originally Posted by footinmouth View Post
Why not ? How much is a WB and what does it do ? All the performance stuff has been on for about 125K with no problems and gets pushed to the rev. daily. 239k total .
you are lucky...or really good, or whoever setup and tuned your stuff is really good.

A wideband displays your Air-to-Fuel Ratio. This way if they get too lean or too rich, you can lift off the throttle before the engine goes boom or what have you. Its like driving without a gas gauge...and just assuming that you wont run out of gas today...or tomorrow...or the next day...or the next day...
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