Thread: help!14.6@ my tune, 14.4@ stock tune w/genV+

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  1. #1 help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    Donating Users Brooks's Avatar
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    98 Buick Regal GS

    Engine:
    GenV lim/blower
    N*TB
    LQ4 MAF
    3.4'' dial ur boost
    3'' Magnaflow D/P
    Ported Manifold/PLOG
    9'' Cold Air Kit
    1.9 Roller Rockers
    autolite 104's
    160* T-stat

    F body front brakes/rotors
    Eibach pro springs
    KYB AGX Struts

    I started with the 3.8'' and dropped when I saw no KR I dropped to the 3.4''. With the 3.4'' I saw no KR over 1.0, so I stuck with it. I know the first response will be, KR LIKE A MOFO, but I've scanned a few dozen times now and only experienced KR when I was tuning for PE w/maf disconnect and Bin 2 configuration.

    I went to 75/80 in Frederick, MD past friday I only ran a 14.6@94mph w/ 2.2 60'. Before my second run, I flashed the PCM back to the stock form (even stock MAF Table) and ran a 14.4@96mph w/ 2.2 60'. I was power braking from 2100rpm with good traction. With the modifications I have and the traction I got that night I expected 13.9 or less @ 100+mph.

    As previously stated, I experience no KR and my traction was good, I have no error codes so VAC or exhaust leaks are ruled out and I would feel if the motor were misfiring. Even if I couldn't drive for crap my trap speed should have been higher.

    They say stock GTP exhaust is good to 300whp, but Is the stock regal single exit 2.5'' catback killing me?
    Does anyone have a gen V bin that I could use as a base if that would work?

    I am open to any suggestions, any advice is greatly appreciated.

    Thanks in advance,
    Gen V 98 Regal GS
    Baltimore, MD
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  2. #2 Re: help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    The Blue One blueguy's Avatar
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    One thing...and this is just me...is that your in no need for a TB of that caliber.

    Another thing...is what was the temps outside? If it was humid as sh1t...there is no point...just wondering since that makes a huge difference with boosted cars.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  3. #3 Re: help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    Donating Users Brooks's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    One thing...and this is just me...is that your in no need for a TB of that caliber.

    Another thing...is what was the temps outside? If it was humid as sh1t...there is no point...just wondering since that makes a huge difference with boosted cars.
    I have never heard that, I understood it was necessary when converting to gen V to upgrade the TB as the 75mm N* is 3mm bigger than the stock genV.

    Outside was 75* and 40% humidity, It was nice out that night.
    Gen V 98 Regal GS
    Baltimore, MD
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  4. #4 Re: help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    Bastard Reptile's Avatar
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    I'd be wondering if you need to lean out the fuel in it.
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  5. #5 Re: help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    SE Level Member 2001GTP's Avatar
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    Something isn't right for sure. You should easily be mid 13s. Have you been able to scan and see what the fueling is doing?
    3.6", 3" Downpipe, K&N CAI, 104's, PRJ Tune, P-Log, 180 t-stat,Res delete, wideband, boost gauge. 14.11" @ 99.5
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  6. #6 Re: help!14.6@ my tune, 14.4@ stock tune w/genV+ 
    Donating Users Brooks's Avatar
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    I will take a good scan and post today after I get home from work, hopefully the collective genius on the board can help my issue of slow.
    Gen V 98 Regal GS
    Baltimore, MD
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