LT1-LT4 Modifications 1993-97 Gen II Small Block V8

svo injectors vs other brands?

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Old Mar 13, 2009 | 03:13 PM
  #21  
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Originally Posted by Puck
Some ford vehicles do use 39psi fuel pressure, but that does not mean the injectors used were rated at the non-standard 39psi. When flowbenched they flow closer to their rating at standard 43.5psi then they do at fords 39.
Nice catch my mistake, theres a thread here where someone called Ford and they stated that the SVO's are rated at 40psi. I saw some SVO 30's flowbenched and they were something like 31.xx at 43.5psi which would mean they are rated less than 43.5psi but how much less I couldn't tell ya.
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Old Mar 13, 2009 | 04:21 PM
  #22  
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So if i have a built 383 and spraying what size do you think i need to run??? Right now i have svo 30's do you think that is big enough or not??
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Old Mar 13, 2009 | 04:37 PM
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Originally Posted by fasttransamlt1
So if i have a built 383 and spraying what size do you think i need to run??? Right now i have svo 30's do you think that is big enough or not??
Horsepower determines fuel supply needs aka injector size. Also wet shot/dry shot?
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Old Mar 13, 2009 | 04:52 PM
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It is a wet shot "175".... The went 60 ft 1.41 but it feels like it falls off on the big end....
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Old Mar 13, 2009 | 05:00 PM
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Originally Posted by fasttransamlt1
It is a wet shot "175".... The went 60 ft 1.41 but it feels like it falls off on the big end....
How much hp NA are you making?
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Old Mar 13, 2009 | 05:07 PM
  #26  
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When i had it tuned at hpe in houston it made 411 hp at the wheels...
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Old Mar 13, 2009 | 05:35 PM
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Originally Posted by fasttransamlt1
When i had it tuned at hpe in houston it made 411 hp at the wheels...
I'd get 39-42# injectors.
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Old Mar 13, 2009 | 07:10 PM
  #28  
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The Ford svo injectors are liked because if they fail they stay open. Some of the other injectors will close if they go into a fail state.
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Old Mar 13, 2009 | 07:20 PM
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Originally Posted by lt1andy
The Ford svo injectors are liked because if they fail they stay open. Some of the other injectors will close if they go into a fail state.
Nice, I didn't know that.
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Old Mar 14, 2009 | 01:38 AM
  #30  
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Alright, since we already had a huge debate on this and threads were thrown around with info on the subject, I can tell you that Puck is right. 99% of the Ford injectors are # rated @ 43.5psi. In one of the threads I came across an enormous injector database with flow ratings, # and cc/hr, vehicles they came from, and a boat load of other info! So, just get the part number off the side of the injector (by the plug in) and CTRL+F on this site and type in that number. Hit ENTER and it'll find it.
http://users.erols.com/srweiss/tableifc.htm

Seemingly a lot of the time, from what I saw from bench tests of users injectors, is they generally flow #1 more than their rating. Older ones of course can flow higher and lower, just due to usage over time.

I was also always told that the other nice thing about the Ford injectors were they helped atomize fuel better.
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Old Mar 14, 2009 | 04:17 AM
  #31  
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I run SVO 30 lb injectors with my setup (see Sig) and am at 80% cycle duty on them. Lots of room left.
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