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Thread: 36# GTP injectors running rich on LS1

  1. 04-16-2016 #1
    SiskMan
    SiskMan is offline
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    36# GTP injectors running rich on LS1

    I ordered some bosch 0280155737 injectors that i guess come off of the supercharged grand prix. I just installed them and changed the injector data in HP tuners with the data found in the READ ME section. I went to start the car and it sputtered the first time. It started the second time but my wideband was reading 10:1 while it was running and smelled really really rich. I double checked the HP tuners injector data and all looks correct. What could I be doing wrong?
    2000 WS6 M6 swap, 6.0 LQ4, Home ported 243 heads, Howards 226/232 .580 112, home made turbo kit, VS7875, D&D T56, Monster Stage 3, Strange S60, 580whp @ 8psi. 100% built and tuned by me.
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  2. 04-22-2016 #2
    fun Pain
    fun Pain is offline
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    GTP injectors are 33-36lb (depending on year). @43psi. Your LS1 will probably be @58psi. You will need to raise the injector data to the "new" flow rate. I am guessing somewhere in the 40's
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