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Old 10-23-2013, 02:53 AM
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what size injecotrs

hey guys, sorry for asking a questions that has probably been done before but I need a straight answer, ive been wanting to do a GTP38R turbo and injector upgrade (with tunes to suit) on my 03 7.3 , ive been emailing riffraff asking questions but the they haven't got back to me on my last question (been a few weeks now), I want to keep reasonable fuel economy and reliability but more power and what not, they recommended I get stage 2 injectors but what size, there page list's 165cc 180cc 200cc 225cc but they have not told me which size to selcet, which one do I choose , and do you guys agree with this

cheers for the help
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Old 10-23-2013, 04:26 AM
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i'd shop around for what tuner your going with, then ask them and your "end" goal, for your truck.
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Old 10-23-2013, 05:52 AM
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I feel like a 38r and some 160/30s (Stage 1) or 175/80s (Stage 2) would be a good combo, should make about 400 or so horsepower with the proper tuning. That is more than likely what I am going to go with when the time comes.
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Old 10-23-2013, 06:14 AM
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If your buying injectors, go bigger with hybrids and have them tuned to suit. Take a look at my Sig......I absolutely love the way my truck runs!
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Old 10-23-2013, 06:16 AM
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Quote:
Originally Posted by Seth14 View Post
If your buying injectors, go bigger with hybrids and have them tuned to suit. Take a look at my Sig......I absolutely love the way my truck runs!
Remember he has PMRs, I don't know if that would make much of a difference but I thought I read that anything over stage 1 or 2 and you run the risk of doing some damage.
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Old 10-23-2013, 06:23 AM
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I can tell you this. I was told 160/100 max out the 38r...hope that helps some
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Old 10-23-2013, 06:33 AM
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A 38r was developed for stock inj's, it works great with stage 1's..which IMO is most I'd use with PMR's.
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Old 10-23-2013, 10:52 AM
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With dieselsite WW2 and 250/200's and a 38R made 638hp. But....its prolly not gonna last as long as a T4 mount setup. But for the ops use, 38R is pretty good turbo. Or you can go the D66 route, and there are some housing/wheel options for that too.

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Old 10-23-2013, 11:47 AM
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Thanks for the help guys, I'm not chasing massive power and I don't tow anything big, just need to keep it reliable

Last edited by AUSPowerstroke; 10-23-2013 at 12:02 PM.
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Old 10-23-2013, 12:58 PM
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D66 isn't a turbo for a SD 7.3 its for a OBS and just like a 38r it won't last long above 450ish HP but it is cheaper to rebuild.
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