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Thread: GM LS Terminator TBI vs MPFI Power Difference

  1. #1

    Default GM LS Terminator TBI vs MPFI Power Difference

    Has anyone done, or seen, a test between the TBI throttle body setup vs the stock LS intake? I'm curious to see the power difference between the two. If they're pretty equal, I'll end up going with the TBI system over the MPFI.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
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    If you already have an MPFI LSx engine, why would you downgrade it to TBI?
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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