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Old 07-07-2010, 11:09 AM   #43
Wacker
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Originally Posted by thesubfloor View Post
What tuning issue are you referring to?

As for locking up the converter under WOT, it really isn't a good idea because what you've got in there is a clutch disk with only a fraction of the surface material of a manual trans clutch AND it's immersed in very slippery transmission fluid.

If the converter is efficient enough there really is no need to lock it up under WOT as I've been running killer times in my Corvette for the last three years with a Yank SS3600.
The Camaro 6L80E is not set up to run an aftermarket converter. The clutch packs used are not designed to slip like stock therefore they burn up. The code in the tranny demands slip at various areas and applies a regulated (not full) line pressure to achieve a desired slip rate. There is allot of tuning involved in getting the thing streetable. As for WOT lockup, some converters are designed just for this. The stock is designed for it as well as Circle D, Pro Torque, and a few others. The clutch capacity in a performance converter far exceeds that of a stocker. It is merely a product of how much psi do I need to lock up. The converter is just like the clutches in the tranny, they will always have some slip during engagement but hold all day if they are built/tuned correctly.
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Old 07-07-2010, 11:17 AM   #44
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The Camaro 6L80E is not set up to run an aftermarket converter. The clutch packs used are not designed to slip like stock therefore they burn up. The code in the tranny demands slip at various areas and applies a regulated (not full) line pressure to achieve a desired slip rate. There is allot of tuning involved in getting the thing streetable. As for WOT lockup, some converters are designed just for this. The stock is designed for it as well as Circle D, Pro Torque, and a few others. The clutch capacity in a performance converter far exceeds that of a stocker. It is merely a product of how much psi do I need to lock up. The converter is just like the clutches in the tranny, they will always have some slip during engagement but hold all day if they are built/tuned correctly.
Well I'm running pretty much the same 6L80 in my Corvette and the aftermarket converter in there works just fine. The thing that doesn't work very well however is the stock clutch packs which is why I'm currently testing out the new Alto clutches.
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Old 07-07-2010, 11:48 AM   #45
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Thanks everyone for your input!!! Keep it coming
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Old 07-07-2010, 11:52 AM   #46
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Thanks everyone for your input!!! Keep it coming
I work in Sacramento in case you ever wanted to see what a 3600 stall feels like.
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Old 07-07-2010, 11:52 AM   #47
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Well I'm running pretty much the same 6L80 in my Corvette and the aftermarket converter in there works just fine. The thing that doesn't work very well however is the stock clutch packs which is why I'm currently testing out the new Alto clutches.
What year vette do you have so I can look at the stock tune file?
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Old 07-07-2010, 11:55 AM   #48
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What year vette do you have so I can look at the stock tune file?
It's a 2007 but I'm not running anything close to a stock tune anymore.
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Old 07-07-2010, 11:57 AM   #49
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It's a 2007 but I'm not running anything close to a stock tune anymore.
Did you do any tuning in the lockup tables?
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Old 07-07-2010, 11:58 AM   #50
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I work in Sacramento in case you ever wanted to see what a 3600 stall feels like.
NO SH*T?! Do you work for the State or something, lol? (Sorry - I do, lol). Anyways, I ran a 3800 stall in my '02, but I know I'd definately be interested in seeing your ride Actually - that's stupid; YES - I'd be interested. I'm sure your 3600 and 6L80 is WAY different than my 3800 and 4L60, lol. YES - I'm down
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Old 07-07-2010, 12:00 PM   #51
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Did you do any tuning in the lockup tables?
I've got it set up so that it won't lockup at all under WOT and I also have it turned it off in D mode for anything less than 65MPH at part throttle. I have a really big cam in the car so I find that improves drivability as it tends to chug a bit at low RPMs if the converter is locked.
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Old 07-07-2010, 12:03 PM   #52
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NO SH*T?! Do you work for the State or something, lol? (Sorry - I do, lol). Anyways, I ran a 3800 stall in my '02, but I know I'd definately be interested in seeing your ride Actually - that's stupid; YES - I'd be interested. I'm sure your 3600 and 6L80 is WAY different than my 3800 and 4L60, lol. YES - I'm down
Here's a video of the car:



I sort of work for the state (CalPERS) and only bring the car into work on Wednesdays so just let me know when you want to meet up.
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Old 07-07-2010, 12:09 PM   #53
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I've got it set up so that it won't lockup at all under WOT and I also have it turned it off in D mode for anything less than 65MPH at part throttle. I have a really big cam in the car so I find that improves drivability as it tends to chug a bit at low RPMs if the converter is locked.
That is the standard way to tune this TCC. At MPH below 55ish the verter likes to lock/unlock (seeking desired slip) burning the aftermarket clutches. You can see it doing this in the logs. There is some special code not allowing full pressure. I have mine set to only lock in 5th and 6th at 60mph and above. I'll get it figured out and continue to post on this thread.
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Old 07-07-2010, 12:13 PM   #54
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Here's a video of the car:



I sort of work for the state (CalPERS) and only bring the car into work on Wednesdays so just let me know when you want to meet up.
Thats impressive. I see/here the reason for the big stall...
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Old 07-07-2010, 12:17 PM   #55
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That is the standard way to tune this TCC. At MPH below 55ish the verter likes to lock/unlock (seeking desired slip) burning the aftermarket clutches. You can see it doing this in the logs. There is some special code not allowing full pressure. I have mine set to only lock in 5th and 6th at 60mph and above. I'll get it figured out and continue to post on this thread.
It's called Pulse Width Modulation and currently neither EFI Live or HP Tuners allows for it to be turned off in the 6L80 (although it can be in the 4L60/4L80).

The reason it's put in there is for driving comfort and it can burn up the aftermarket clutches however I just had Yank go through my converter (after recently blowing my transmission) and he said the lockup clutch was holding up just fine after a year.
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Old 07-07-2010, 12:18 PM   #56
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Thats impressive. I see/here the reason for the big stall...
Yep, you can't 60ft like that with a stock converter.
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