Hennessey Twin Turbo

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Thread: Hennessey Twin Turbo

  1. #1
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    Hennessey Twin Turbo

    I haven't see any threads here about the Hennessey twin-turbo system for the R8. Hennessey tells me that $45k US will boost an '08-R8 to 700 HP.
    Anyone at this forum done this? Sounds like a reasonable alternative to going V-10, but 700 sounds pretty insane.

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  3. #2
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    Re: Hennessey Twin Turbo

    Hennessey's like a deca-shot of vodka on ice: Absolutely mental!

    700HP! but heck, why not
    2009 audi r8 (gone)
    2010 mb g55
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    2011 911 turbo S

  4. #3
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    Re: Hennessey Twin Turbo

    ive never dealt with hennessey before but ive always heard bad things about them.....i would stay away and stick with the superchargers as they are proven and tested on the forums, plus pushing 700hp out of the R8 is alot.....alot of internals are gonna have to be changed and the tuning is a nightmare......its gonna run you waaaay over 45K.....your looking at close to 60k and a whole lot of downtime :P

  5. #4
    Senior Member gazza1's Avatar
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    Re: Hennessey Twin Turbo

    Quote Originally Posted by biggie27 View Post
    ive never dealt with hennessey before but ive always heard bad things about them.....i would stay away and stick with the superchargers as they are proven and tested on the forums, plus pushing 700hp out of the R8 is alot.....alot of internals are gonna have to be changed and the tuning is a nightmare......its gonna run you waaaay over 45K.....your looking at close to 60k and a whole lot of downtime :P
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  6. #5
    Senior Member dailydriver's Avatar
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    Re: Hennessey Twin Turbo

    I bought a stainless steel exhaust system and air intake from them for my Viper a while back. I also purchased some polished aluminium wheels from them too. My experiences were just fine and the performance upgrades make a big difference.

    Obviously sending your car in to have twin turbos added or having the engine bored out is another matter all together. He has created some insane beasts for the Viper though.
    '10 Audi R8 V10 (daytona gray pearl effect, CF sideblades, titanium finish wheels, STaSIS exhaust/ECU)
    '12 Tesla Model S Signature Series (on order)
    '11 Cadillac Escalade ESV
    '06 Lexus RX 400h
    '03 Chevy Corvette 50th Anniversary
    '94 Dodge Viper
    '69 Chevy Camaro SS/RS

  7. #6
    Senior Member smoothy's Avatar
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    Re: Hennessey Twin Turbo

    He's in Texas I think? There's some pretty nasty flame wars online about him, google will find them as well as somewhere online is a public database of lawsuits in Texas, his company is in there an awful lot. I don't know what the status of the suits are, but it does make one want to undertake extra due diligence

    Here's a couple of quick links:
    http://www.viperalley.com/forum/anyt...tswingers.html
    http://www.forzacentral.com/forum/sh...ad.php?t=17015

    http://www.300cforums.com/forums/gen...own-board.html
    2009 4.2 R-tronic, phantom black with lava grey blade, black napa interior

  8. #7
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    Re: Hennessey Twin Turbo

    Now for some of you who like to cross certain lines of saying things that you can only say behind the safety of your keyboard know this - if you say the wrong thing and its meant to be harmful to my family, etc. - I will pick one of you out of the crowd, fly to where you live and beat the living **** out of you to make you an example to the next jackass who thinks about it.
    hahaha, Class A chap!

    Jerry Johnson said he had to file suit in Placer County Court in California to straighten out registration and engine computer problems on a Viper he bought from Hennessey. n Jon Belinkie said he loves the changes made to his Viper but had to sue in his home state of Maryland, then register the judgement in Texas, to recover overcharges Hennessey made on his American Express card.
    Wow, even cars he DOES finish end up in problems
    Last edited by AnOutsider; 07-27-2009 at 07:54 AM.

  9. #8
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    Re: Hennessey Twin Turbo

    I have a customer that shipped his R8 to TX for a supercharger last year and waited 6 months for... nothing. The car came to us and we wrapped it up w/o the supercharger. To say he wasn't happy is being polite...

  10. #9
    Senior Member harrison's Avatar
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    Exclamation Re: Hennessey Twin Turbo

    This Hennessey fellow could try doing a little explaining...Or is that a threatening quote by Hennessey himself ?? 700 H.P. sounds FANTASTIC !!!! It is good to know we are safe behind our keyboards...most of you...I am usually riding shotgun while behind my laptop.(sometimes doing 100MPH ). I just love my broadband .
    GONE-BUT NEVER FORGOTTEN '8,R8 V8,Paddles,Mag ride,Jet-Blue/Carbon blades,Smoke chrome OEM 5 spokes & Lambo S.L. whls,Miltek exh.PPI Steering whl,rear wing,front grill,air filter kit.C.F.interior trim,V10 sideskirts,premium black leather,B&O,navi,camara. KEEPURSHINEYSIDEUP/STICKYSIDEDOWN VIDEO:R8 in CANYON video ... janerinsurance.com/r8 ...\"/

  11. #10
    Senior Member smoothy's Avatar
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    Re: Hennessey Twin Turbo

    Quote Originally Posted by harrison View Post
    This Hennessey fellow could try doing a little explaining...Or is that a threatening quote by Hennessey himself ?? 700 H.P. sounds FANTASTIC !!!! It is good to know we are safe behind our keyboards...most of you...I am usually riding shotgun while behind my laptop.(sometimes doing 100MPH ). I just love my broadband .
    Yes, its a quote from John. Also look at the 300cforums site link I posted above, he seems to fly into a rage in that one too )
    2009 4.2 R-tronic, phantom black with lava grey blade, black napa interior

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