Thread: 3.1 liter engine mods

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  1. #1 3.1 liter engine mods 
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    what kind of mods can be done to a 3.1 liter motor?
    Last edited by GeddyLee; 08-04-2009 at 09:18 PM.
    dvaughn 98 grand prix
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  2. #2 Re: 3.1 liter engine mods 
    GT Level Member BoostedComp's Avatar
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    supercharged 3.8 swap =)

    in all seriousness though, outside of swapping the engine, im not sure there is very much room for improvement outside the usual intake and i guess exhaust work
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  3. #3 Re: 3.1 liter engine mods 
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    thanks i thought of that, but i dont want to go 900 mph. i just want a little more power and a good sound.
    dvaughn 98 grand prix
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  4. #4 Re: 3.1 liter engine mods 
     

  5. #5 Re: 3.1 liter engine mods 
    GXP Level Member Iron Indian's Avatar
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    Quote Originally Posted by Bio248 View Post
    you can swap in the turbo setup from the 89-90 TGP.
    Won't work, the 98 3100 SFI is quite a bit different than the 3.1 MPFI. You'd be better off fabbing your own, it would be alot less hassel anyway.

    Honestly man, for info on modding a 60 Degree V6, This is not the site for you. Go to www.60degreeV6.com for more info. Those guys can steer you in the right direction. Good luck.......
    Shawn W. Larsen

    2005 Pontiac GTO 6.0 LS2/A4... Stalled/Cam Only: 406 RWHP , 370 RWTQ

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  6. #6 Re: 3.1 liter engine mods 
    DUI BABY Bio248's Avatar
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    didnt read the signature so i thought he was talking about an old 3.1, oops.
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  7. #7 Re: 3.1 liter engine mods 
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    you can turbo anything.
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  8. #8 Re: 3.1 liter engine mods 
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    turbos and supers make your hp per litre suck balls. I read a lot of **** about modifications and what not, and in the Modified Mag edition with the tour of HKS on Mt. Fuji they build a VQ up all motor and explained how turboing and or supercharging the motor make the hp per litre almost back to stock so it was basically pointless.


    BUT! since its a V6 (and that nobody cares about tech numbers) you could turbo one side and supercharge it, kinda like the Gojira Scion Tc.
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  9. #9 Re: 3.1 liter engine mods 
    The Blue One blueguy's Avatar
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    That **** is rice...and it is called Twincharging...its been done but is absolutely pointless on a motor with near NONE aftermarket support.

    Just put a 3800 in it and have fun.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  10. #10 Re: 3.1 liter engine mods 
    DUI BABY Bio248's Avatar
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    twincharging is a great way to make two different sets of powerbands at the same times. the turbo for the lower end get up and go and a big turbo to haul ass on the top end. id rock a twincharged setup.
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  11. #11 Re: 3.1 liter engine mods 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Bio248 View Post
    twincharging is a great way to make two different sets of powerbands at the same times. the turbo for the lower end get up and go and a big turbo to haul ass on the top end. id rock a twincharged setup.
    Exactly...but not on a 3.1 or a 3.4
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  12. #12 Re: 3.1 liter engine mods 
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    Quote Originally Posted by bluegtp91 View Post
    Exactly...but not on a 3.1 or a 3.4

    **** i would run it on a 2.5L or any V6! if its got a cast block, its on like donkey kong.

    Who would twincharge a motor with no mods? Get a chip, CAI, upgrade your exaust 1/2", get a header with the turbo manifold, upgraded fuel delivery, MSD ignition and then talk forced induction. Then possibly some racing heads, and maybe some new cams and you will be rolling fat.
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  13. #13 Re: 3.1 liter engine mods 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by 69Fiat View Post
    **** i would run it on a 2.5L or any V6! if its got a cast block, its on like donkey kong.

    Who would twincharge a motor with no mods? Get a chip, CAI, upgrade your exaust 1/2", get a header with the turbo manifold, upgraded fuel delivery, MSD ignition and then talk forced induction. Then possibly some racing heads, and maybe some new cams and you will be rolling fat.
    You obviously have no idea what in the hell your talking about. So, I'll tell you.

    1) There is no such thing as a chip for these cars. We have PCM's and you have to tune them.
    2) Just because the block is cast iron doesn't mean sh*t...I've toasted more than one.
    3) So increase your exhaust ONLY a 1/2"? Maybe it worked on your Honda but not these cars.
    4) The turbo runs off the crossover...not a turbo manifold like a B-Series, or 4G63. Jesus
    5) Just because you have MSD Ignition doesn't mean it is better...the stock ignition in these cars is awesome.
    6) Racing Heads? For a 3.1 or 3.4? So like maybe 10 more horsepower? Right. Those motors, or your Cast Iron 2.5 liter V6 won't make **** for power even with a lot of mods.
    7) CAM...not cams...these are Overhead Valve Motors, not Dual Overhead Cam motors.

    Work for you?
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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    '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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  14. #14 Re: 3.1 liter engine mods 
    DUI BABY Bio248's Avatar
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    i love you, nick. i only talk like that to people when im drunk.
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  15. #15 Re: 3.1 liter engine mods 
    GT Level Member BoostedComp's Avatar
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    drinkin a little now? your gettin a little affectionate over there bio haha kidding kidding
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  17. #17 Re: 3.1 liter engine mods 
    The Blue One blueguy's Avatar
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    Nick...this makes me sad...he has seen this thread and posted elsewhere...but knows how dumb he is and won't reply. I love it...best part is I was 110% sober
    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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  18. #18 Re: 3.1 liter engine mods 
    SE Level Member peegh's Avatar
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    ok so basically its not possible. I only have 55,000 miles on the car so I was hoping to use what I had. Besides if I put in a 3.8 I have to get wiring harness and all. I was just hoping there was something bolt on that i could do for just a little boost. Nothing crazy
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  19. #19 Re: 3.1 liter engine mods 
    The Blue One blueguy's Avatar
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    Milzy Motorsports...check that out.
    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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