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  1. #1
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    Supercharger for the 5.7L Hemi

    What is the best supercharger for the 5.7L? How come I don't see more people adding them? Are there downsides to a supercharger compared to other engine mods (cam, etc)? Anybody know of any good shops in the southeast that will install them?
    SCOTT57RT
    2007 RT Charger 5.7L - Black Crystal Pearl
    Mods: DiabloSport Predator - InertiaTuned, MagnaFlow CAT Back Exhaust, JBA High Flow Cats, JBA Headers, 185Tstat, 85mm CNC Throttle Body, 6psi-P1SC Procharger Supercharger, Blown Spartan Cam, 20x9 FR SRT8 Challenger Wheels/NittoInvo, Mygig, BC Racing Coilovers, Willwood Brakes&Rotors



  2. #2
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    There are several systems available for the 5.7L. Vortech, Techco, and Procharger to name a few.
    We sold quite a few Vortech and Techco's for the 5.7, and installed several as well.

    The first question I have to ask are what are your goals for your car, then we can help determine which system may be best or is a S/C is right for what you are trying to accomplish.

    We are in the Southeast, South Fla to be exact! Feel free to ask questions and we will do our best to answer them, or give us a call 877-BMC-RWHP!
    Kris | Mopar Specialist | Speedlogix, Inc.
    2006 Charger SRT8 Road Race Car/2017 Charger Hellcat "ProjectBlackCat"/2014 Durango R/T

    *** We Price Match - click here to see how it works! ***

    Visit us online at Speedlogix.net or call 888-SPD-LOGX to talk to one of our Mopar experts!

  3. #3
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    I'm looking for something that will get me into the 12 sec club. Also, I'd like something that allows me to get pretty good quickness off the line 0-60. I'm not really looking for top end.

  4. #4
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    A S/C and a set of Drag Radials will get you into the 12's. Narc300C, a LXF member ran 12.9 his first time out with a Techco we installed on his 5.7L 300C. Keep in mind he was running 22's on the front and D/R's in the back...and on Airbags and fully loaded with audio eqpt! Other than the Techco his car was bone stock, just a reso delete and gutted cats.

    The twin screw style of blowers which is what the Techco is will give you more torque and low end power than the centri type (Vortech and Procharger). I am running a Vortech on my SRT and love it but it is a different feel.

    Here is a vid of Frank's 300 with the Techco...
    http://tvbmc.com/play.php?vid=1145

    And a driveby of our 5.7L Chally with the Techco..
    http://tvbmc.com/play.php?vid=1144

    We have vids of the other systems as well as track times and dyno sheets if you are interested. Unlike a few short years ago there are lots of F/I choices today!
    Last edited by SRT8U; 06-04-2009 at 09:35 AM.

  5. #5
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    screw type blowers will generally make more low end,
    centri type blowers will generally peak a little higher

    for a screw style, id look into the new kenne bell about to hit the market,
    techco is also a great option however. it just comes down to preference,
    i prefer the legacy, the sound, and the track record of the KB.
    for a centri style i greatly prefer Procharger for the Air/Air IC and the drive system for the pulley.

    if given the choice id go with a screw style, i love the look, and when you get on it, everybody knows you have one.
    however you dont have the Blow off sound you get similar to a turbo car with the centri blowers.

    just remember, on a stock bottom end, you need a ROCK solid tune. ive pulled heads and seen all 8 pistons gone on a "conservative" tune from a supercharger done by some one else. and dont push it past 6-7 lbs of boost.

    '99 FRC Corvette - Far From Stock
    '06 Silver R/T R&T Fully Loaded [SOLD]
    ->FRI'd with Street/Strip Heads + Scud Camshaft<- CTP Spacers + 09 Eagle Manifold
    -FRI Custom Stepped LT Headers--Getrag 3.06 LSD--DIABLOsport Predator--Powerbond 25% Underdrive Pulley--ProTorque 2800
    -FRI PolyMounts--GSM Cold Air Intake--180Tstat--RTJunkieNOESP--MoparTCM--PEDDERS Touring Kit--Billet Tech Throttle Body
    Best ET: 12.490 sec @ 113.58 mph +400 DA, 4000 RaceWeight

  6. #6
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    For a screw type supercharger, look @ Harrop/Eaton

    This supercharger is incredible....
    2007 300C SRT8 ... aka Big Blak

    Harrop/Eaton 2300 Air/Water Intercooled Supercharger, CPR Fuel Rails, Kenne Bell Boost-A-Pump, MOPAR/SRT Injectors, Inertia Motorsports Big Valve Ported Heads, Frank Racing LittleBoy Cam, ATI Super Damper, Diablosport Predator, Oil Catch Can, 180* T-Stat, Billy Boat Cat Back Exhaust, American Racing Long Tube Headers & Race Cats, Hotchkis Sway Bars, ProTorque 2800RPM Converter, M-B AMG Blue Top Solenoids, Mopar TCM, '09 Challenger LSD Getrag 3.06 Rear ...
    CMR Tuned By AJ aka HemiTuner!!

    Personal Best: 11.24 @ 123.56 mph

  7. #7
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    we are running a special on the whipple systems, give me a call, on top of that, you are only about a 2 hour drive from our shop also. but yea give me a call about the prices, we havn't really posted anything yet, but just give me a call, i guarentee you'll be in the 12's with our blower.

    btw where do you run at?
    E-mail at Sales@powerported.com for any info on our products

  8. #8
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    Thanks for all the replies. I'm not ready to write the checks quite yet. I'm in the research phase. It looks like I'm looking for a screw type, for sure....and a good tune. You guys have been helpful, as usual. Anybody know how involved the screw type installs are?? I'd guess its not a major deconstruction of the motor?

    PPP, I run at Hub City in Hattiesburg...when I get a chance to go down there. "Extreme" and his 300 typically blows my doors off.

  9. #9
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    I think the biggest reason there are not more people supercharging is that most people can't affor to plop down $6k or more for the system and install at one time.
    2010 Nissan Xterra S
    Sold:2006 R/T: JBA catback & headers, K&N Aircharger CAI, Diablo Predator 91CAI Tune, 180* Tstat, Cabin Filter Kit, hood struts, Daytona grill and emblem,Daytona rear R/T badge, Daytona Chin Spoiler,BT catch can, BT MOPAR hood emblem, BT R/T Engraved shift bezel, BT Shift Stick. - 305 RWHP & 344 RWTQ - pre shorties.
    1/4 Mi. 13.57 @ 102.73mph

  10. #10
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    Quote Originally Posted by marshall9779 View Post
    I think the biggest reason there are not more people supercharging is that most people can't affor to plop down $6k or more for the system and install at one time.
    True, but there are lots of people spending that or more for stroker motor and install.
    I think alot of it is fear becasue of the early systems that came out when there was no way to tune cars properly more than money issues based on the number of Stroker installs I see going on.

    There are actually more S/C systems being installed than you may think...Techco alone has sold more than 200 units, not to mention all the Vortech and Prochargers out there.

  11. #11
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