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Injector Upgrade

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Old Apr 27, 2011 | 12:28 AM
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Default Injector Upgrade

Well im maxing my injectors out now and im ready to upgrade.

I know the 8.1 marines are popular as well as the svo injectors.

I see svo sets on tech pretty regularly for decent prices.

what would be the best way to go? i dont mind changing the injector plugs if needed.
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Old Apr 27, 2011 | 03:06 AM
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my buddy got a new set of 8.1's for like 90 or 100 off ebay. they should easily be able to power any all motor 5.3 i would think, as long u dont have a big dry shot
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Old Apr 27, 2011 | 06:33 AM
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I run a wet shot so that shouldnt be a problem, i also have a walbro intank.

the issue i was seeing with the marine 8.1s is not having injector data for tuning.
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Old Apr 27, 2011 | 08:46 AM
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The cheap ebay ones are generally 8.1 truck injectors and are not rated as high as the 8.1 marine injectors that are 42#per hr. I got my 8.1 marines from injection connection, few years back, they are cheaper now...
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Old Apr 27, 2011 | 11:07 AM
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iv found a few sets
http://cgi.ebay.com/ebaymotors/Set-8...#ht_500wt_1182

http://cgi.ebay.com/ebaymotors/Ford-...Q5fAccessories

https://ls1tech.com/forums/parts-cla...ug-n-play.html

https://ls1tech.com/forums/parts-cla...injectors.html

im thinking the green tops would be the best option, would i need to modify the rails in any way?
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Old Apr 27, 2011 | 11:24 AM
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Get the marine 42 or 44's..
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Old Apr 27, 2011 | 11:45 AM
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such as these?
http://cgi.ebay.com/ebaymotors/8-1-L...ht_13054wt_937
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Old Apr 27, 2011 | 06:58 PM
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Ive come across a good deal on the green tops.

Im pretty sure thats what im going to get, seems all i need to do is space the rails up and change the plugs.
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Old May 10, 2011 | 01:19 PM
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Alright, my tuner is going to be in town the 18-24 this month and i need to get my injectors before then.

Ive found a few sets and im stumped on wich ones would be the best route....
1. 42# green tops- $250-275
2. 8.1 31# direct fit- $159 or flow matched for $215
3. 30# svo red tops that flow more on gm fuel pressure- $50-150

Id like the 8.1 marines but they are out of budget right now and i dont plan on adding much more power so maxing out a 30-36# injector shouldnt be an issue
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Old May 11, 2011 | 12:04 PM
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Run some gto ls2 injectors. Change plugs and use o ring off stock injector.
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