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Built 6l80 blew. What's my options?

 
Old 09-03-2016, 10:47 PM
  #81  
usmcpony
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Sent it to Century and everything has been good since. Over twenty 10.2 passes on street tires. Would of been in the 9's if i wouldn't of left from a idle. Track sucked too.
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Old 09-06-2016, 04:20 PM
  #82  
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Is this with your new setup, or before you blew the motor? Before I would guess cause I just saw your 1st startup on the new motor (I guess).
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Old 09-06-2016, 08:19 PM
  #83  
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Originally Posted by bmfvette View Post
Is this with your new setup, or before you blew the motor? Before I would guess cause I just saw your 1st startup on the new motor (I guess).
Before. Haven't driven it since the motors Been built.
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Old 09-14-2016, 06:50 AM
  #84  
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Originally Posted by usmcpony View Post
All these years of racing and technology and the only choice we have is a ancient 4 speed that makes it boring to drive. I think I may put a manual in it. This is my first automatic car. Pretty disappointed to say the least.
street car up to 1000hp Definitely 6 speed manual ..

1000+hp drag car then 4 speed auto or Glide...

is the reason why 6 speed autos are weak when added hp is becuase gears are smaller to fit in similar size casing?
then what will happne with 8 and 10 speeds ?! maybe the experts can weigh in
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Old 09-14-2016, 08:09 AM
  #85  
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Gears don't break, the clutches slip. 8 speed auto is taking a beating, and can handle more torque than the 6 speed.
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Old 09-14-2016, 05:40 PM
  #86  
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Originally Posted by Unreal View Post
Gears don't break, the clutches slip. 8 speed auto is taking a beating, and can handle more torque than the 6 speed.
I know of two 8L90's breaking already. Haven't heard what bit the bullet but both of them were at the 10K mile mark on stock Z's.

In the 6L80 the clutches burn and the baskets break..
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Old 02-05-2019, 01:57 PM
  #87  
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Originally Posted by Unreal View Post
Because 4l80 is just a bit different than a 4l60 which was offered in 1997-2005 vettes so the parts are out there to adapt. A 6r80 only has 2 cases, one for truck and one for stang, neither of which are transaxle cars. They don't have the input/output shafts, or any way to remotely bolt to the diff in a c5/c6. The fact that the corvette transmission is in the back and bolts to the diff really limits options. It isn't just adapting it to the motor and a custom mount/driveshaft.

I have a 6r80 in my 2012 gt, great tranny.
Did you ever figure this out? I want to put an LS3 in a 1977 F150 with a 6R80 transmission.
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Old 02-05-2019, 02:15 PM
  #88  
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Figure what out? I wasn't figuring anything out, just stating that there is no 6r80 transaxle setups. That is still true.
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Old 02-05-2019, 02:19 PM
  #89  
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Originally Posted by Unreal View Post
Figure what out? I wasn't figuring anything out, just stating that there is no 6r80 transaxle setups. That is still true.
I want to connect the Ford 6R80 transmission to a GM LS3 engine. I'm trying to figure out if it just bolts together.
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Old 02-05-2019, 03:07 PM
  #90  
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Without even spending any time looking up the bolt pattern, I can almost 100% guarantee ford is not using GM LS bell housing patterns on their motors/trannys.
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Old 02-05-2019, 05:08 PM
  #91  
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jlcorb - I would use the 6L80 with the LS3 mainly because you are going to have to have an ecm for the ls3 and the 6L80s have an internal tcm and have your wiring harness company source you a harness for both.

The 6R80s are controlled along with the coyote engines via car computer or whatever they use as they don't have a standalone tcm like the gm unit. Then you would have to have 2 computers and 2 seperate wiring harnesses.. Just my .02
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Old 02-05-2019, 06:13 PM
  #92  
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Agreed it isn't a good idea, tons of cost, and custom work. Plus 6l80 will take all a LS3 can throw at it.
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Old 02-18-2019, 08:54 PM
  #93  
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Hey Guys, check out the RPM website: They have a level 1,2, and 3 6l80 options.
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Old 02-18-2019, 11:01 PM
  #94  
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Originally Posted by echocharlie
Hey Guys, check out the RPM website: They have a level 1,2, and 3 6l80 options.
RPM doesn't do 6L80's
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Old 02-19-2019, 06:53 PM
  #95  
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Default Rpm transmissions

Call RPM and talk to either Jeremy or Jessie. They did my A6 about two years ago. Or again, check out their website: Iím looking at it as I type this. They DO the A6!
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Old 02-19-2019, 07:12 PM
  #96  
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Originally Posted by echocharlie
Call RPM and talk to either Jeremy or Jessie. They did my A6 about two years ago. Or again, check out their website: Iím looking at it as I type this. They DO the A6!
If they do it's something fairly new because they never did before.

Please share what you're looking at because I don't see anything on their site.
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Old 02-20-2019, 07:22 AM
  #97  
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Originally Posted by realcanuk View Post
If they do it's something fairly new because they never did before.

Please share what you're looking at because I don't see anything on their site.
If true this is a very recent policy change. If RPM will do an A6 that would be great as current options are limited. Perhaps the initial poster saw "A6 Automatic" on the Rear Differential product page and thought it referred to a transmission.

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Old 02-20-2019, 07:42 AM
  #98  
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Just went through their whole website, and no mention anywhere of 6l80 builds. I don't know what he is looking at.
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Old 02-20-2019, 08:17 AM
  #99  
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I did the same thing, with the same results. You really gotta wonder sometimes...
IIRC, I read somewhere that RPM used to build them and stopped, as did ECS, because their customers kept experiencing failures, most likely from guys messing with the tuning. There’s a lot of mythical hype out there about how “weak” these transmissions are and that a 4L60,65,70 is “stronger”, etc. which I will call BS on any day, from my experience.
From what I have seen, only Circle-D, Century and PATC build performance 6L80s. The fact that the quickest A6 C6 I’ve seen on these forums is running stock GM internals in his 6L80 makes you wonder whether these things need anything more than a good fluid cooler and a proper tune though. Seems the key is gearing and tuning it to keep it from shifting into 4th in the 1/4.
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Old 02-20-2019, 05:00 PM
  #100  
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When mine went south.. I talked to Jeremy and he said they didn't build them but they used to. And he also said all they did at the time was a stock rebuild because nobody was making any aftermarket parts. Told me to go buy new from GM with warranty, which is what I did.

Keeping fluid cool and a really good tune is life of the 6L80!!
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