Thread: good avice on engine mods *not doing a top swap*

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  1. #1 good avice on engine mods *not doing a top swap* 
    GT Level Member GrandPrixGT00's Avatar
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    lookin to get som extra HP and in a week or two im lookin to get the TDC intake (so TDC u dont have to pop in lol but ur advice is greatly appreciated) and im not really sure what else to do or if the TDC intake will do much b/c i dont have any mods at all yet
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  2. #2 Re: good avice on engine mods *not doing a top swap* 
    GrandPrix Junkie Sabrewings's Avatar
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    If you don't want to get any sort of forced induction, this would be my preferred list.

    2.5" DP (no need for 3")
    Plog
    some sort of intake
    ER rockers
    HV3
    ported throttle body

    It'd be quick for N/A.
    2004 Impala LS - got some mods sold!!!
    2009 Subaru Impreza WRX STI

    NAIOA moderator Still Imp'n, just in a different Imp.
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  3. #3 Re: good avice on engine mods *not doing a top swap* 
    GT Level Member GrandPrixGT00's Avatar
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    nows all i need is a trandlator for those abbreviations lol
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  4. #4 Re: good avice on engine mods *not doing a top swap* 
    GTP Level Member QwikGT's Avatar
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    i had all those mods when i was N/A....it was ok...the M90 was the greatest mod i ever did
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  5. #5 Re: good avice on engine mods *not doing a top swap* 
    TDCRacing
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    Well basicly the only thing you can do is exhaust and intake. That is what's going to make the biggest difference anyway.

    Whether your s/c'd or N/A'd the cooler the air the better. You will notice a difference in performance with our Intake.


    The above rockers that were mentioned is basicly giving you the best performance you can get without buying a cam and tearing into the motor.
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  6. #6 Re: good avice on engine mods *not doing a top swap* 
    Donating Users Liquifire's Avatar
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    Quote Originally Posted by Sabrewings View Post
    If you don't want to get any sort of forced induction, this would be my preferred list.

    2.5" DP (no need for 3") DP=Downpipe to replace stock exhaust downpipe and U-bend delete
    Plog Plog= Powerlog which replaces front exhaust manifold
    some sort of intake
    ER rockers
    HV3 Insert for upper intake manifold
    ported throttle body

    It'd be quick for N/A.
    Hope this helps..............
    98 GTP Coupe- 180* T-stat, GMPP Front Sway Bar, Dual Aeroforce Interceptor's, TDC FWI, TDC Taylor 10.4's, ZZP SS Plog, ZZP 3" SS catted DP, ZZP MPS W/3.4, AL104's gapped @.055, 3800Perf. PCM
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  7. #7 Re: good avice on engine mods *not doing a top swap* 
    GT Level Member BoostedComp's Avatar
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    yeah that setup wont be too bad for n/a... but no matter what every time you hop into a gtp youll want that top swap... id say bite the bullet and swap or sell and get a gtp... it was well worth it for me
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  8. #8 Re: good avice on engine mods *not doing a top swap* 
    DUI BABY Bio248's Avatar
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    its a pretty big waste of money to try and get any power out of the n/a motor.
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  9. #9 Re: good avice on engine mods *not doing a top swap* 
    GT Level Member BoostedComp's Avatar
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    Quote Originally Posted by Bio248 View Post
    its a pretty big waste of money to try and get any power out of the n/a motor.
    i agree... i had a solid 700 bucks wrapped up into my gt before i finally decided to get a gtp.. couldnt really top swap cause i had the 97... what i would do if i had that money layin around for the gtp
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  10. #10 Re: good avice on engine mods *not doing a top swap* 
    The Blue One blueguy's Avatar
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    General Tech Sticky.

    Safely Modding Your 3800 Powered Car.

    Read.
    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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  11. #11 Re: good avice on engine mods *not doing a top swap* 
    club of used to own a gp 99prixgt's Avatar
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    Sabrewings summed it up pretty well, you'd prolly have a high/mid 14 sec car.

    When I was N/A my best was a 15.3 with a 2.2 60ft and traped 88, that was on a cool night. My mods were removed headlight, stock air box, plog, zzp dp, intense s/k, overkill pcm, solid motor mounts, slp catback (not that that matters), and 4* of knock.
    16' wrx sti- stock
    06 Spice Red GTO- m6/exhaust/tune/suspension/377whp-383tq-sold
    99 silvermist gp gt-g5/xp/IC/3.0mps-parted&sold
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  12. #12 Re: good avice on engine mods *not doing a top swap* 
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    I ran a 14.8 at 91 mph with a 2.09 60' with a 3" downpipe, Wizaired Intake, koni adjustables, S1 throttle body, Corsa catback, and a powerlog. I was running a ZZP pcm with some adjustments to the MAF table when I made that run. I'd say there was definitely room for improvement.


    I wanted to stay NA, but I got a good deal on some top swap parts and decided to take the leap. I'm still gathering parts for the build so I can't say how much faster it is.
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