Thread: injectors

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  1. #1 injectors 
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    I was wanten to put injectors in my car I drop to a 3.5 pulley and wanted to go 3.4 this winter and I'm ganna do headers and Maby valve springs and rockers.should i stick with stock or go bigger I didn't no if bigger would b better or just pointless
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  2. #2 Re: injectors 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    You'll probably end up out flowing your stocks. Get 42.5# to be safe.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: injectors 
    Moderator dsmuts's Avatar
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    should be fine with a 3.4 setup with stock inj
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  4. #4 Re: injectors 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    they would prolly go static around 3.25 range.

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  5. #5 Re: injectors 
    GTP Level Member 01gpgt01's Avatar
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    unless your top swapped stock injectors are fine
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  6. #6 Re: injectors 
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    Would it hurt anything even if I went bigger injectors even if the motor didn't need them
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  7. #7 Re: injectors 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    I'm going static on a rockered/header 3.4 setup with AFR's in the low 11's.
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  8. #8 Re: injectors 
    GTP Level Member 01gpgt01's Avatar
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    Static on a 3.4 pulley? Then your rich as heck unless your topped swapped.( but more then likely what you think is static isnt static. Ive seen over 112 Injector duty cycle on my injectors lol) And no ryan it wont hurt. You do need to tune for them.
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  9. #9 Re: injectors 
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    Ok thanks I'm ganna b Geten it tuned thanks guys
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  10. #10 Re: injectors 
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    where is a good place to get them from and i wanna get a cam and rockers what do u guys recommend
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  11. #11 Re: injectors 
    The Blue One blueguy's Avatar
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    Depends on what pulley your going to be running...I had a 3.2" on an XP on stock injectors.

    I only recenetly installed my 42.5's when I went to a big cam/heads setup.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  12. #12 Re: injectors 
    GXP Level Member darkhorizon's Avatar
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    Stock injectors will go a long ways.... You typically would not have to worry about upgrading them unless you are looking to do a cam or an intercooler.
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  13. #13 Re: injectors 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    You'd think so, but how is it then i'm just plain running out of injectors on a 3.4 pulley with headers and rockers?

    I had to lower my shift points by 400rpm of the potential top end to avoid running static, and even then in perf shift i occasionally crest over 100% injector duty slightly shift completing at 5800rpm
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  14. #14 Re: injectors 
    The Blue One blueguy's Avatar
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    Your injectors suck Nixon.

    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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