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post #1 of 37 Old 03-10-2015, 04:50 PM Thread Starter
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injectors

i was wondering if anyone knows where to get bigger injectors for the 2008 altima vq.. ive looked through the forums and everywhere online and i cant find anywhere where its mentioned.

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post #2 of 37 Old 03-10-2015, 05:26 PM
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The real question is why do you need bigger injectors? what are you trying to do?

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post #3 of 37 Old 03-10-2015, 05:30 PM Thread Starter
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i actually was just talking to someone and got an answer and some insight on injectors. based on my setup they recommended 560cc injectors, 4 inch intake and an uprev tune.
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post #4 of 37 Old 03-10-2015, 05:35 PM
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You don't need bigger injectors unless you have some type of forced induction. the 440cc injectors will not be maxed out on a N/A setup. are you CVT or Manual?

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post #5 of 37 Old 03-10-2015, 05:39 PM Thread Starter
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thanks for the info. pretty new at this. it's a 6 speed. my setup so far is Y pipe, catback, intake, timing advance, grounding kit, and a few little other things. everyone ive spoken too said to get the 560cc injectors and the 4" intake..
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post #6 of 37 Old 03-10-2015, 05:43 PM
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I have more done to mine than that, and you don't need bigger injectors yet. Even with the tune, you won't be maxing out the stock injectors. technically the more the merrier, but you don't really need to spend that extra $400-600 on injectors for what you are going to be running. If you add nitrous, or go turbo, then you will need bigger injectors. I'm pushing close to 310whp on stock injectors with no detonation or fuel starvation. Upgrade your fuel pump with a Walbro is all you really need fuel wise for now.

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post #7 of 37 Old 03-10-2015, 05:52 PM Thread Starter
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alright fair enough.. what do you recommend for a tuning software? i was told to go with the uprev but ive also heard bullydog is alright.. ive heard good and bad things about both.
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post #8 of 37 Old 03-10-2015, 05:58 PM
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Bully dog is just a paperweight. it's good for monitoring things, but serves no real purpose on this car. Get the Uprev

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post #9 of 37 Old 03-10-2015, 05:59 PM Thread Starter
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alright thanks. and im assuming the fuel pump i can get from the website?
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post #10 of 37 Old 03-10-2015, 06:01 PM
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or you can order it on Amazon or ebay. I have a full write-up on here on how to do the install.

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post #11 of 37 Old 03-10-2015, 06:03 PM Thread Starter
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how do i get to the write up? pretty new on here so im not really sure how to navigate this forum
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post #12 of 37 Old 03-10-2015, 06:13 PM
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In the upper right hand corner you will see a magnifying glass. That is the search engine. Search for Walbro install on the 4th gen, and search under my user name.

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post #13 of 37 Old 03-10-2015, 06:48 PM Thread Starter
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Yea I still can't find it.. damn this thing is confusing lol :dizzy_face:
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post #14 of 37 Old 03-10-2015, 08:07 PM
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Looks like something changed again on the forum layout.

Go to the Altima section. Then on the right above the subcategories, you will see a "Search this forum" tab. Click on that, then do your search

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post #15 of 37 Old 05-17-2015, 02:47 AM
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You need injectors if your going with a 4" intake or bigger. I'm running GTR blue Denso 570cc and I'm adding very little fuel via Apexi Neo allowing me to keep all my timing! And by the way I paid $190 for those on eBay. 440cc will work fine with the 4" as well but tune with uprev and not Apexi or SAFC2 because when you add fuel u indirectly retard timing, but that's if u go with 440cc. Go with 570 cc and u get The cheapest and easiest way for 20whp peak and gains throughout entire powerband by combining them with /Apexi neo/4" intake. Best mods I ever did!
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