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Thread: 6L80E

  1. #1
    Join Date
    Jan 2006
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    ANYONE HEARD HOW THE 6 SPEED 80E IS WORKING, IS IT REALLY A SIX SPEED? I KNOW THEY ARE GOING IN AS AN OPTION IN THE DENALI.
    12 Sec. Club! SOLD
    La Viuda negra/ a.k.a. Black Betty

    LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
    SOLD***

  2. #2
    Join Date
    Apr 2005
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    4,229
    I think the conversions require a stand-alone controller to work (IE the stock computer can't control it). I don't think the controller is out yet.
    Gone, but not forgotten!

  3. #3
    Join Date
    Mar 2006
    Location
    Dawson Springs KY
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    284
    I don't know what the gear ratios are but it would be sweet to have the take off of 4.56's and the economy of 3.42's.

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    (gone but not forgotten)02 Avalanche Z-71 Vortech supercharged 3.12 pulley 10psi, SMC meth injection, 33 12.50-17 procomp AT, 17x9 procomp wheels, AVIC-N2 NAV, 4.56 gears, Detroit TrueTrac, 2500 stall converter, transgo HD2 shift kit, Vette servos, 80mm BBK throttle body, Edelbrock shortie headers Cold Fusion wet shot (60hp), and too many more mods to list. 8.86/18th 472rwhp/499rwtq

  4. #4
    Join Date
    Jan 2006
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    <div class='quotetop'>QUOTE(KY_BOB &#064; Dec 28 2006, 04&#58;43 PM) [snapback]77609[/snapback]</div>
    I don&#39;t know what the gear ratios are but it would be sweet to have the take off of 4.56&#39;s and the economy of 3.42&#39;s.
    [/b]
    THATS WHAT IM TALKING ABOUT. TAKE OFF WOULD BE SWEET. I HAVE AN EQUINOX WITH A 6 CYL. AND A 5 SPEED AUTO. TALK ABOUT GET UP AND GO. IT ONLY HAS 185 HP.

    JAMEST
    12 Sec. Club! SOLD
    La Viuda negra/ a.k.a. Black Betty

    LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
    SOLD***

  5. #5
    Join Date
    Jun 2005
    Posts
    9
    The 680LE is a 4 speed auto with two OD gears. For towing they do not recommend 6th gear but otherwise is is very stout. GM moved the software to the EBCM so at the present time there is no backward compaitiblity. However, I met a test engineer driving a preproduction version in a C5 so unless that car had the LS2 electronics package I am sure it can eventually be retrofitted.

  6. #6
    Join Date
    Nov 2005
    Location
    ohio
    Posts
    1,712
    Im diggin my 6 Speed Allison&#33;&#33; I would love to try that new 6 speed in a gas truck. Its gotta make cruising a lot lower. I hope they lowered the 1 st gear ratio since they can make up for it .
    07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------

  7. #7
    Join Date
    Jun 2006
    Location
    The Socialist Union of Canada
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    368
    Instead of spending a lot of cash on a 6L80, and trying to make it work. Why not try a Gear Vendors over drive?

  8. #8
    Join Date
    Feb 2004
    Location
    Sour Lake Tx
    Posts
    309
    the gera vendors is more for non overdrive trannys and adds more room for error at the track. I would rather have the 6l85 simply because of the extra gear to split the underdriven gears and a .70:1 6th gear for a bit better highway mileage. If im not mistaken first gear is i think 4.03:1 which would kick ass for a heavy truck at the track and to tow a trailer with.
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  9. #9
    Join Date
    Apr 2003
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    Mansfield, Texas, USA
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    Yes, it&#39;s really a six speed. I posted a ton of info on it at GMFS.com.
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