07-20-2014, 12:40 PM | #1 |
Drives: Black 1SS Join Date: Apr 2009
Location: Pittsburgh, PA
Posts: 442
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Anyone with a Built 6L80 Happy with it?
I have read that a lot of people are doing a 4L80 swap and those with a built 6L80 are not happy with it. I have to make a decision on what to do and would like to keep the 6 speed. I don't want to loose cruise control or give up better mileage if I can get the 6L80 built to handle 600 Ft lbs rear wheel torque. Anyone with a built 6L80 happy with it? Did you buy a built transmission or buy the parts and have someone local build it? If you bought a built one where did you get it?
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07-20-2014, 12:44 PM | #2 | |
Slowhawk Built
Drives: 2010 Supercharged SS Join Date: Apr 2014
Location: CT
Posts: 819
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Quote:
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9.21 @ 149 Slowhawk Performance
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07-20-2014, 01:08 PM | #3 |
Drives: Black 1SS Join Date: Apr 2009
Location: Pittsburgh, PA
Posts: 442
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There seem to be a lot of reputable companies out there offering built 6L80's. If they can't hold the power why are they still being offered?
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07-20-2014, 01:12 PM | #4 |
Slowhawk Built
Drives: 2010 Supercharged SS Join Date: Apr 2014
Location: CT
Posts: 819
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Beats me. My car was between 700-800 rwhp. They are rated for 1200 rwhp but I had zero luck. A few times it made it home and not broken but more often than not is was hurt. Plenty of witnesses. Thus the turbo 400 I'm running now.
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9.21 @ 149 Slowhawk Performance
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07-20-2014, 03:45 PM | #5 | |
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I built my own with the phoenix kit, and tuned it. If its not tuned right it will not last. Built or not. |
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07-20-2014, 04:20 PM | #6 |
Drives: Black 1SS Join Date: Apr 2009
Location: Pittsburgh, PA
Posts: 442
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I would like to hear from someone who had one built right and is happy. A lot of the posts with problems are several years old and I expect many of the people who decided to go with 4L80 conversions did so because of problems awhile ago. I am curious if more available parts and more experience is making a built 6L80 a reliable option today.
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07-20-2014, 04:46 PM | #7 | |
Slowhawk Built
Drives: 2010 Supercharged SS Join Date: Apr 2014
Location: CT
Posts: 819
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Quote:
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9.21 @ 149 Slowhawk Performance
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07-20-2014, 05:46 PM | #8 |
Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011
Location: Montreal, Canada
Posts: 690
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I had a local builder rebuild mine while making the decision on what parts to upgrade myself. Second summer with it now and no issue to date. Not to many track runs on it but plenty of hard street usage. I will be running it more at the track later in the season and I guess then I will see how well it really holds up.
My plan is to pull it every second season (this winter) and refresh the clutches and steels. I consider this just routine maintenance when running these power levels, and cost is minimal. I believe the hard parts will be fine. I tune the trans myself.
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2007 C6 vert, auto, F55, LT3
LME LS402 , WCCH 245 Heads, Pat G. Custom cam YSI / 3.0 pulley, ARH 1 7/8 headers, NPP Dewitts / dual spals, A&A dual pump fuel system. 3.42 polished gears, hardened shafts, Alky control meth, Cartech line lock, ECS axle loops, Trans brace, 6L80 built by me. ID 1000 injectors, comp rockers, Morel lifters, BT springs, Trend 3/8 pushrods, ATI 10% OD Damper Circle D Triple Disc stall 1009 RWHP @ 7000, 817 RWTQ @ 6000, |
07-21-2014, 09:01 AM | #9 |
Drives: Black 1SS Join Date: Apr 2009
Location: Pittsburgh, PA
Posts: 442
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Thanks for the input, but these are not exactly glowing recommendations for building a
6L80? No one out there as had one built with no problems? I don't want to have to pull my transmission every two years to replace clutches. I know of two reputable shops, Rossler being one, that will no longer work on them.
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07-21-2014, 10:47 AM | #10 | |
Drives: 2007 Corvette C6 983 RWHP Join Date: Dec 2011
Location: Montreal, Canada
Posts: 690
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If you are talking about street use, and moderate power, you should have no issues as long as temps are controlled and the tune is right.
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2007 C6 vert, auto, F55, LT3
LME LS402 , WCCH 245 Heads, Pat G. Custom cam YSI / 3.0 pulley, ARH 1 7/8 headers, NPP Dewitts / dual spals, A&A dual pump fuel system. 3.42 polished gears, hardened shafts, Alky control meth, Cartech line lock, ECS axle loops, Trans brace, 6L80 built by me. ID 1000 injectors, comp rockers, Morel lifters, BT springs, Trend 3/8 pushrods, ATI 10% OD Damper Circle D Triple Disc stall 1009 RWHP @ 7000, 817 RWTQ @ 6000, |
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07-23-2014, 04:06 PM | #11 |
2K10 SS
Drives: 2010 2SS/RS A6 SIM black stripes Join Date: Mar 2009
Location: Southern Maryland
Posts: 356
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I have one built by Century transmissions in Houston TX and It took a while to get the tune right but I have had no problems now Im only pushing 440 to the wheels so I shouldnt have any problems. I lost my stocker and wanted to upgrade it for future. So far so good and not sure what parts they used.
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Tuned with HP tuners by Ryan at GPI...LS3 Conversion GPI SS3 Comp Cam...GPI Heads... GPI modded Intake...GPI built Transmission...Circle D 5C T.C....1 7/8 Kooks LT headers...Vararam tune CAI...Bo White TB...Powerbond 25% UDP...3.91 Gears...Magnaflow 3" Catback...RX catch can...BMR Trailing Arms...BMR Toe Rods...BMR Pro rear cradle bushing kit...Smoked Lenses...Black Chrome SS rims...Black Bowties...Painted Stripes...Barton shifter...Hydro Dipped engine cover...Clear Shield bra (front clip and hood)...
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07-23-2014, 05:12 PM | #12 |
Drives: 11 F150 EB/13 Sonic RS/15 Z06 Join Date: Sep 2010
Location: Little Rock, AR
Posts: 7,127
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If you want a six-speed auto that can handle high HP you could get one of these http://www.transmissioncenter.net/4l80e.htm
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New Ride -- 2015 Z06 2LZ (stock) -- Journal
Old Ride -- 2012 Camaro 2LT/RS (647 RWHP & 726 RWTQ) -- Build Thread |
07-23-2014, 05:22 PM | #13 | |
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I love mine. I do all of our trans builds in house here. Your tuner needs to know your clutch stackup and how to modify the tables to accommodate the changes. |
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07-25-2014, 12:33 PM | #14 |
Drives: 2010 camaro 2SS Join Date: Mar 2012
Location: WV
Posts: 400
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Whats the price on having one built?
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www.lashwaymotorsports.com
2012 L99, whipple, Roto-Fab, Stainless Power headers, ZL1 fuel pump, cat delete. |
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