Thread: Top Swap and S2IC Knock KR issues

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  1. #1 Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Im having around 4-5 degrees KR and figured I would see it anyone had any others ideas I didnt think of...The mods are the Top-Swapped GT motor with SLP headers, 3.2 pulley and the Stage 2 IC. New spark plug wires from ZZP and AL103 plugs. I would like to believe its a fueling issue, maybe an old ass partically clogged fuel filter (which I forgot to change but will be doing soon) but wondered what else it could be. When we did the scan for knock and I went WOT, its sometimes felt like it didnt wanna shift or it would jump throttles, if that makes any sense. Little KR at 70-90%, I'll jump to 2 or 2.5 degrees then gon downs to 0 kr. And this is sometimes, not everytime. Also having false knock. Only about for 5 minutes after start up. ill just all over the place, even at 20%-40% throttle. Then after a few mintues, its gone. Other than the KR issues the car runs smooth and shifts fine. Im going to get dyno-tuned at ZZP soon too, most likely in the next week or two.
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  2. #2 Re: Top Swap and S2IC Knock KR issues 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    You need a real tune for the mods you have.

    SMGPFC Member #1
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  3. #3 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    You need a real tune for the mods you have.
    We tuned it shortly after the TopSwap, the file with the tune was from a buddy of mine who used to work at ZZP (unless my roommates altered the file when flashing the pcm). He's kinda knock for hitting a tune on the spot. Thats why I didnt think tuning was the issue, but we'll soon see after the dynotume
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  4. #4 Re: Top Swap and S2IC Knock KR issues 
    Killa Bee Scottydoggs's Avatar
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    so you guys tuned it and it was kr free, and now you have kr?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  5. #5 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by scottydoggs View Post
    so you guys tuned it and it was kr free, and now you have kr?
    No, It was never KR free...
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  6. #6 Re: Top Swap and S2IC Knock KR issues 
    Killa Bee Scottydoggs's Avatar
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    put the stock pulley back on till you can get it re tuned then. the file you got needs help. what you got was canned tune basically. it needs to be fine tuned.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #7 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by scottydoggs View Post
    so you guys tuned it and it was kr free, and now you have kr?
    Im going to get dynotune at zzp soon...hoping thatll solve everything
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  8. #8 Re: Top Swap and S2IC Knock KR issues 
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    Same mods, all I could run was a 3.4
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  9. #9 Re: Top Swap and S2IC Knock KR issues 
    GTP Level Member Rico's Avatar
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    He may be on the cusp of needing racing fuel
    It's a CUMMINS Dodge not a Dodge Cummins
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  10. #10 Re: Top Swap and S2IC Knock KR issues 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    he might be running the injectors out, frankly.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  11. #11 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by Nixon View Post
    he might be running the injectors out, frankly.
    It shouldnt be injectors...friends with the same stock gtp injectors run fine and there mod modded than myself.
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  12. #12 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by matt5112 View Post
    Same mods, all I could run was a 3.4
    And with the 3.4 was no KR???
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  13. #13 Re: Top Swap and S2IC Knock KR issues 
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    Quote Originally Posted by rell2005 View Post
    And with the 3.4 was no KR???
    Under 1* if it ever showed up.

    But I was on 42.5 injectors.

    Saw upwards of 75-80% IDC.
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  14. #14 Re: Top Swap and S2IC Knock KR issues 
    GTP Level Member Rico's Avatar
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    I wonder if OP used 33# injectors from the GTP and not the 26# from the GT.
    It's a CUMMINS Dodge not a Dodge Cummins
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  15. #15  
    GT Level Member afallucco's Avatar
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    Wideband tune at all?

    Sent from my ADR6400L using Tapatalk 2
    2004 Grand Prix GTP
    |FWI | HP Tuner | 1.9 Rockers | SD Headers | 3.5MPS | 97-03 control arms w/GMPP sway bar|
    Planned soon: s3x, custom ported heads, IC
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  16. #16  
    I live here. MoarkatsINmuhtrailer's Avatar
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    Quote Originally Posted by afallucco View Post
    Wideband tune at all?

    Sent from my ADR6400L using Tapatalk 2
    Anthony read, its pretty much a "tweaked" and I mean that in the most unnerving way, box tune.

    Op, just put a larger pulley on, preferably stock. And figure the chit out when you get it dyno tuned.
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  17. #17 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by Rico View Post
    I wonder if OP used 33# injectors from the GTP and not the 26# from the GT.
    I am running the GTP injectors
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  18. #18 Re: Top Swap and S2IC Knock KR issues 
    SE Level Member rell2005's Avatar
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    Quote Originally Posted by afallucco View Post
    Wideband tune at all?

    Sent from my ADR6400L using Tapatalk 2
    Nit yet...but looking into a WB air/fuel gauge
    Top-Swapped GT, SLP headers, 3.2 Pulley, Stage 2 Intercooler
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  19. #19 Re: Top Swap and S2IC Knock KR issues 
    I AM PEWPIN! rynoman03's Avatar
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    That'll come in handy. Purchase one as soon as you can. I agree with the others on the larger pulley. I'd throw one on to be a little safer until you can get a true street / dyno tune. Canned tunes are just pissing in the wind hoping to get close.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  20. #20 Re: Top Swap and S2IC Knock KR issues 
    The Blue One blueguy's Avatar
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    lol @ 3.2" with no valvetrain upgrades.

    Needs bigger injectors, needs a solid WB tune, needs more 3.4"~ pulley.

    Then, needs more timing
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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