Thread: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot?

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  1. #21 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    the module piece that screws on top of the pcm? what does that do if i rearrange them?
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  2. #22 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTX Level Member TEK310's Avatar
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    im trying to get more info. but its on 3800pro.com

    Why do I have Knock Retard after replacing my PCM? - 3800Pro.com Forum
    2012 Competition Orange Boss 302 #1769 438rwhp 391rwtq
    intake - off road h pipe - e85 - tune
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  3. #23 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    ohhh man i think im boned. i dont have the original pcm to swap the module off of =/
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  4. #24 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    is it still possible to get a case relearn done on a 97 maybe?
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  5. #25 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTX Level Member TEK310's Avatar
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    there is a write up on the board here somewhere.
    2012 Competition Orange Boss 302 #1769 438rwhp 391rwtq
    intake - off road h pipe - e85 - tune
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  6. #26 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTP Level Member Oxfire's Avatar
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    Get AC Delco Wires and Coil packs if not already installed on car.
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  7. #27 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    i have some spare coils off of one of my old cars. ill swap em on. the coils are bright red and the wires are zzp brand. ive ziptied so many things today... and at wot about 70mph or 4500rpm in 2nd gear only it jumps to ten degrees kr *usually and stays there. this car is maddening. it seems to be a speed issue... the top of the strut mount plate on the passenger side likes to free spin on the bushing as well
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  8. #28 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTP Level Member Oxfire's Avatar
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    Quote Originally Posted by Leiliel666 View Post
    i have some spare coils off of one of my old cars. ill swap em on. the coils are bright red and the wires are zzp brand. ive ziptied so many things today... and at wot about 70mph or so 4500rpm it jumps to ten degrees kr *usually and stays there. this is car is maddening
    OH GOD. You have MSD coil packs? AC Delco packs and wires go go and report back. Should work way damn better.
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  9. #29 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    im gonna guess they aint good for our engines. its rainin pretty good here at the moment but ill put the other coils on as soon as i get a chance. ..im gonna say that the worst part of dealin with our W body cars. is tryin to diagnose a motor that countless people touched before you lol
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  10. #30 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    SE Level Member Leiliel666's Avatar
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    got the delco coils on. dont have any wires layin around that id trust. gonna test drive. wish me luck
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  11. #31 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTP Level Member Oxfire's Avatar
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    Quote Originally Posted by Leiliel666 View Post
    got the delco coils on. dont have any wires layin around that id trust. gonna test drive. wish me luck
    Post back with results.
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  12. #32 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    **improved throttle response random kr at mid throttle. and a whole gob of it at high rpm. the only pattern at all is that it seems to be biased somehow on the exhaust frequency
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  13. #33 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    i mean the car is pretty loud. no resonator. cobbled leaky downpipe. no cat. the whole car rumbles at idle
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  14. #34 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTP Level Member Oxfire's Avatar
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    Shiet. Try the wires but after that I'm fresh out of ideas. The plugs, switch em if you havent already...the injectors maybe? Check if they're effd? I have no idea.
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  15. #35 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    i just pulled plugs off the front of the motor to check the scoring. the number one had oil on it. valve seals? yeah i hear ya man. im half tempted to write it off as a basket case. i got another car to drive till winter. maybe i can throw it at a shop until they figure it out XD
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  16. #36 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    Quote Originally Posted by Leiliel666 View Post
    i just pulled plugs off the front of the motor to check the scoring. the number one had oil on it. valve seals? yeah i hear ya man. im half tempted to write it off as a basket case. i got another car to drive till winter. maybe i can throw it at a shop until they figure it out XD
    Well there's something! Switch em with 606s or Ngk tr-55. Post back with results. If she's breathing clear then the issue to be resolved is with what were discussing I'd say.
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  17. #37 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    ...newish downpipe but stock design. and the inner wall appears to be collapsing. i put the 605 plugs in and nothin changed much. would the exhaust rattle cause crazy knock? especially at higher rpm?

    my bad 606 plugs. i got the autolites
    4200 Stroker Kit, ZZP CAI, Plog and manifold kit, cross drilled slotted rotors, TVS custom S/C rotor swap, Modified SnakeBite Kit, Ported Heads, 1.9 Rockers, 4.0 Pulley 10.5 mm Wires, 160 Tstat, AL103, ZZP 1.0 PCM/tuned // 13.24 @ 106
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  18. #38 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
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    maybe you have restricted flow causing it to have kr
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  19. #39 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GXP Level Member GTPpower's Avatar
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    It's got nothing to do with your ignition.

    Check your DP for clogs, but it sure sounds to me like a trashed suspension. I had a problem with an axle causing KR at certain speeds due to it's harmonics.

    I never changed away from the factory knock module on the 97 that I used to have, but I was pretty sure it was the LT4 knock module that everyone swapped in.

    But, if you are going to swap this motor into a lighter car, I would recommend that you get a 98+ wiring harness and PCM. Some 97's just have bad luck with kr.


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  20. #40 Re: stock (allegedly) gtp with flow mods nets 10 degrees kr at wot? 
    GTX Level Member TEK310's Avatar
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    Quote Originally Posted by GTPpower View Post
    It's got nothing to do with your ignition.

    Check your DP for clogs, but it sure sounds to me like a trashed suspension. I had a problem with an axle causing KR at certain speeds due to it's harmonics.

    I never changed away from the factory knock module on the 97 that I used to have, but I was pretty sure it was the LT4 knock module that everyone swapped in.

    But, if you are going to swap this motor into a lighter car, I would recommend that you get a 98+ wiring harness and PCM. Some 97's just have bad luck with kr.
    LT4 module?
    2012 Competition Orange Boss 302 #1769 438rwhp 391rwtq
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