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  • #1

    LT4 knock

    hello yall again
    i was just wondering about the lt4 knock modogual? is it a good investment at 30-40$? will i see any better performance and will it work with my 97 lt1 and not trip the ses light?
    1997 Camaro, Z-28, 5.7, Manual 6, K&N cold air intake, custom ram air scoop, ported MAF, Resonator plug, air foil, 160 thermostat, hypertech power programer 3, 3 inch cat-back exhaust, strut tower brace, K&N valve breather, centerforce dual friction clutch, slp short throw shifter, TNL short stick, O2 simulators, Next mod will be 1.6 rockers, pushrods, and springs. any reccomendations?
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  • #2
    It really would help if you would tell us your mods so we can tell you if you really need an LT4 knock MODULE.

    Ideally a stock LT1 motor running on 92+ octane shouldn't sense much knock if any at all. However, sometimes false knock is interpreted by the LT1 km and can persuade the PCM to retard ignition timing by as much as 22 degrees. Retarded ignition timing = lost horsepower.

    The addition of such things as headers, aftermarket timing sets, or roller rockers can create additional harmonics which can be falsely interpreted as engine knock (pre-ignition/detonation). So if you have done any of these mods or are just experiencing knock period then yes it would be worth $40 for the LT4 km.

    How are you determining that you are getting false knock? A scanning device such as the "LT1 scanmaster" will greatly help to determine this. It will display such things as degrees of retard, 02 sensor mv values, and over 20 different PCM modes. See if you can't borrow one from someone

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    • #3
      surf online . you can find it cheaper than that. 28 bucks or so.

      The Goldens: Reno and Rocky

      2008 C6, M6, LS3, Corsa Extreme C/B, (it flys) & 2008 Yukon loaded (Titanic), 03 Ford Focus..everydaydriver.

      Wolfdog Rescue Resources, Inc.:http://www.wrr-inc.org
      Home Page: http://www.renokeo.com
      sold: 97 Firehawk, 97 Comp T/A, 2005 GTO, 2008 Solstice GXP turbo.

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      • #4
        Re: LT4 knock

        Originally posted by PhantomZ28
        hello yall again
        i was just wondering about the lt4 knock modogual?
        No flame intended...just that "modogual"....pretty funny
        Al 96 Ram Air T/A
        Mods: Build # 784 * Hotchkis STB * SFCs * Borla cat back w/QTP cut-out * AS&M/RK Sports Mid-length headers w/single CAT * Koni SA shocks on lower perch w/ lowered rear * Strano Hollow front & rear antisway bars * 1LE front/rear springs * 1LE aluminum driveshaft * Strange 4.10 gears w/ Zexel Torsen diff. * ARP bearing cap studs & aluminum diff cover* J&M Hotpart poly/poly rear LCAs and poly/poly panhard bar * RAM Powergrip clutch w/ LT4 PP and RAM billet Al flywheel * C5 Z06 brakes * C6 Z06 wheels * Spohn T/A * Spohn DS Loop * fully custom interior w/ custom audio

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        • #5
          The car will recover faster after a shift. Don't expect HP improvements, it will simply prevent HP loss. Personally, I think it's a good investment in driving pleasure.

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          • #6
            Originally posted by wolfman
            surf online . you can find it cheaper than that. 28 bucks or so.
            hey now i only got a C in spelling
            1997 Camaro, Z-28, 5.7, Manual 6, K&N cold air intake, custom ram air scoop, ported MAF, Resonator plug, air foil, 160 thermostat, hypertech power programer 3, 3 inch cat-back exhaust, strut tower brace, K&N valve breather, centerforce dual friction clutch, slp short throw shifter, TNL short stick, O2 simulators, Next mod will be 1.6 rockers, pushrods, and springs. any reccomendations?

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