LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

injector questions

Old Oct 22, 2003 | 08:33 AM
  #1  
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injector questions

whats the best injector.....and difference in them. I need 30lb and saw accel, svo, etc.

Let me know your input
Old Oct 22, 2003 | 08:36 AM
  #2  
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SVO and Bosch are the best IMO. They are the same product with a different part number. Remeber to get programming for them.

Brad
Old Oct 22, 2003 | 09:20 AM
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The best injector in my opinion is Delphi. SVO injectors are made by Bosch. If you are going to go with big injectors (over 50lbers) I would recommend going with Delphi or Siemans. If you are looking under 50lbers than I would recommend SVO injectors.
Old Oct 22, 2003 | 10:25 AM
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IDOXLR8......dang dude your running 83# injectors???? You gotta be kidding. I have never heard of anyone running such monsters. Maybe I just haven't looked but I thought some of the biggest were 36ers and stuff.

As for original question.....go with the Bosch SVO's. I have heard a lot of people having problems with Accels. Heard they were not even or something like that. Some throwing 28#s and stuff. Do a search. Just yesterday I saw someone post the same thing.
Old Oct 22, 2003 | 10:28 AM
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c

so for the average bolt on mods car, what size is best 24-28 lb/hr? what if I were to add N.O. later? I have 24s now on my 93(came with 22s i think)
Old Oct 22, 2003 | 10:30 AM
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[QUOTE]Originally posted by S.J.S.
[B]IDOXLR8......dang dude your running 83# injectors???? You gotta be kidding. I have never heard of anyone running such monsters. Maybe I just haven't looked but I thought some of the biggest were 36ers and stuff.

lol, yeah I am running 83 lb injector and no my car is not driven on the street. My setup needs that big of an injector. Typically with blower applications running alot of boost you need a pretty decent fuel system. I know a guy (Cal Hartline) in Florida running 160 lb injectors in his GrandNational and the thing drives like it is stock.
Old Oct 22, 2003 | 10:40 AM
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Stock 24's will handle 400flywheel HP comfortably. Some people have pushed them to 450HP, but I wouldn't. Adding N2O will affect the injector size only if you add a dry system. A wet system would add the fuel by means other than the injectors.

Until you start getting into the more exotic setups, I don't think you will see all that much difference between injector types. The stock RP ball and spray disc provide the exact spray pattern the intake and head runners were designed for. The Bosch/FMS/SVO pintle styles will flow a little more than rated in a stock 43.5psi fuel system, but they are actually a little slower than the stockers.

I doubt Accel actually makes their injectors.... most likely just relabled injectors from one of the few standard manufacturers.

Most of the larger HP engines I have seen will run low impedance Bosch, Siemans or Lucas injectors. I run Bosch 64's at 58psi, making them a 78# equivalent.

Here's a good reference on injectors:

RLC Injector Tech
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