Thread: Thinking about 104s

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  1. #1 Thinking about 104s 
    Sudden
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    Default 10-05-2015
    I'm going from 605s to 104s, what should the gap be.
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
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  2. #2 Re: Thinking about 104s 
    BillBoost37
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    Default 10-05-2015
    Whatever works best. Gapping can be a bit of a pain to determine what works best.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  3. #3 Re: Thinking about 104s 
    Sudden
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    Default 10-05-2015
    Start at around .055?
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
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  4. #4 Re: Thinking about 104s 
    BillBoost37
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    Default 10-05-2015
    Start where ever your research suggests. I'm not very familiar with your mods.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  5. #5 Re: Thinking about 104s 
    Scottydoggs
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    Default 10-05-2015
    ive played the gap game, 0.50 always feels best.

    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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  6. #6 Re: Thinking about 104s 
    Sudden
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    Default 10-05-2015
    Thanks all.
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
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  7. #7 Re: Thinking about 104s 
    EHB
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    Default 10-05-2015
    i just went .50 because based on everything i've read , it seems the guys who did .55 ended up at .50 sooner or later.
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
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