fuel pressure on 383 lt4?
10-18-2007, 04:46 PM
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fuel pressure on 383 lt4? hello i bought an engine from a guy on here that made around 420 rwhp and i was wondering what fuel pressure you guys were runnin it has 30lb injectors in it.
thanks
thanks
10-18-2007, 10:41 PM
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you can run more if you want to make the injectors run at a higher pressure to squeeze more out of them if you're starting to max the duty cycle out, but that's the general LTX fuel pressure range.
10-18-2007, 10:45 PM
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30# is a bit low me thinks, but I might be wrong. Get an adj regulator if you don't like that the stock PSI will suffice. Boost it to 50psi. I ran my TPI at that, but that's a whole nother story, but it was an ECM, not a PCM. I took a look recently at a PCM tune compared to an ECM tune, and they are QUITE different.
