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C7 Torque Converter Stall Question?

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Old Dec 3, 2013 | 01:36 PM
  #21  
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Bottom line is the high stall helps the C7 0-60 and 1/4 mile. I am not the only one who thinks this as you can see in the earlier post in this thread.

Put the same stall as the C6 has in a C7 and watch the slower times.
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Old Dec 3, 2013 | 01:47 PM
  #22  
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Originally Posted by sam90lx
Bottom line is the high stall helps the C7 0-60 and 1/4 mile. I am not the only one who thinks this as you can see in the earlier post in this thread.
Where did anybody state otherwise in this thread? It "helps", as do several other things, the least of which is the fact that the C7 makes more horsepower and torque than the C6.
Originally Posted by sam90lx
Put the same stall as the C6 has in a C7 and watch the slower times.
Why stop there? Put the same LS3 in the C7 and it would surely run slower times. Or better yet, put a set of all season radials on it and watch the slower times.

I'll just chalk this up to you not having any data or examples (much less your own personal experience racing your own C6) over a period of 6 years of C6 LS3 production to support your claim that "a high stall convertor brings way more to the table versus a tune, exhaust, and CAI" or "the C7 has a higher stall or it might lose to a C6".
This discussion was over before it even began.
S.
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Old Dec 3, 2013 | 04:58 PM
  #23  
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Originally Posted by Snorman
In one of the press releases, GM announced that they put a "smaller torque convertor" in the C7. That typically equates to a higher stall speed.
S.
Agreed, I missed that...for others, here's a link on Motor Trend where I found it mentioned
http://www.motortrend.com/roadtests/...ay_first_look/
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Old Dec 3, 2013 | 06:30 PM
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Originally Posted by sam90lx
Bottom line is the high stall helps the C7 0-60 and 1/4 mile. I am not the only one who thinks this as you can see in the earlier post in this thread.

Put the same stall as the C6 has in a C7 and watch the slower times.
But stock to stock the C7 doesn't come with the C6 stall. It's just like the engine, suspension, tires, chassis, etc. The different stall is just another tool in the C7's arsenal to improve performance.

The C7 being awesome doesn't mean the C6 isn't awesome. They're all Vettes.
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Old Dec 3, 2013 | 06:34 PM
  #25  
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Originally Posted by CPhelps
But stock to stock the C7 doesn't come with the C6 stall. It's just like the engine, suspension, tires, chassis, etc. The different stall is just another tool in the C7's arsenal to improve performance.

The C7 being awesome doesn't mean the C6 isn't awesome. They're all Vettes.
I agree, my point is the stall helps the C7 just like the Michelins do. I'm really surprised the C7 does not run quicker with all things considered:

Higher Stall
Better Tires
More HP
More TQ
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Old Dec 3, 2013 | 09:50 PM
  #26  
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Don't forget the C7 has a much better torque curve, more HP and is underrated. This without a higher stall converter will still be faster than a C6. In the end the new Stingray is quicker/faster than a C5Z and C6 and it does not matter why... It just plain is. Mod for mod the C7 is ahead.
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Old Dec 4, 2013 | 11:09 AM
  #27  
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Originally Posted by Snorman
Where did anybody state otherwise in this thread? It "helps", as do several other things, the least of which is the fact that the C7 makes more horsepower and torque than the C6.
Why stop there? Put the same LS3 in the C7 and it would surely run slower times. Or better yet, put a set of all season radials on it and watch the slower times.

I'll just chalk this up to you not having any data or examples (much less your own personal experience racing your own C6) over a period of 6 years of C6 LS3 production to support your claim that "a high stall convertor brings way more to the table versus a tune, exhaust, and CAI" or "the C7 has a higher stall or it might lose to a C6".
This discussion was over before it even began.
S.
While I applaud your efforts,I'm afraid they are falling on deaf ears(Sams). He's grasping for any cheap mod that will make the C6 comparable to a C7. First it was the Michelins,now it's something as simple as a "High"(LOL) stall converter.

I've had many cars that I changed the converter on, along with other mods, and certainly don't consider the one in a C7 to be a high stall converter. A high stall starts around 3800 RPM's in my experience.
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Old Dec 4, 2013 | 11:46 AM
  #28  
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Let me just say that there is a difference all things being equal (same car) between a 1500 & 2500 rpm stall converter.
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Old Dec 4, 2013 | 12:06 PM
  #29  
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Originally Posted by Grand Sport Man
Let me just say that there is a difference all things being equal (same car) between a 1500 & 2500 rpm stall converter.
Some don't get this!
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Old Dec 4, 2013 | 05:02 PM
  #30  
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Amazing this thing is going 11.4 BONE STOCK, and people with last year's model are infighting and saying "gee, I thought it would be ALOT faster..." Seriously? Really? Only 40/50HP more C6 v. C7? and has dropped what, .8s off the C6? And this is the FIRST YEAR of the C7? I will be crapping in my own pants the day I pull off a 11.4 in my C5Z (after several mods of course). All this C6 jealousy/hater-ade needs to go away. Chev made a great car in the C7. Can't wait to come home and get one. If you're jealous, go trade in that dino C6 and get your C7. Congrats to Snorman on the great times.
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Old Dec 4, 2013 | 05:15 PM
  #31  
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Originally Posted by dart.deanda
Amazing this thing is going 11.4 BONE STOCK, and people with last year's model are infighting and saying "gee, I thought it would be ALOT faster..." Seriously? Really? Only 40/50HP more C6 v. C7? and has dropped what, .8s off the C6? And this is the FIRST YEAR of the C7? I will be crapping in my own pants the day I pull off a 11.4 in my C5Z (after several mods of course). All this C6 jealousy/hater-ade needs to go away. Chev made a great car in the C7. Can't wait to come home and get one. If you're jealous, go trade in that dino C6 and get your C7. Congrats to Snorman on the great times.
Not instigating a C7 vs anything debate, but for those that don't venture to the other parts of this forum...a bone stock C5Z went 11.7 and with drag radials to make the 60' similar to the C7s along with just a CAI it went 11.5 and trapped 120mph, less than a .1 difference which I would consider a drivers race imho
http://forums.corvetteforum.com/c5-z...list-only.html
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Old Dec 8, 2013 | 11:39 PM
  #32  
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First using the information from the C6 1/4 mile challenge is useless. Those of us who race in New Jersey know the advantage of racing at Atco. Please read the disclaimer posted on the list.

Second comparing the C6 with the C7 is like comparing apples to oranges.

Now if you want to continue this discussion and try to compare the C6 to C7

Then take a 09 LT1 A6 Z51 NPP add a 2500 stall converter and a set of C7 Michelin tires; go to Atco on a good Da day and see how fast it runs.......... and btw and there is still a 24 horse power difference.

Those of us who know Bill realize that he is a very good driver, and it is possible for him with less horsepower to get to the stripe first. For the rest of us last time I checked the guy with the most horsepower usually wins.
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Old Dec 9, 2013 | 12:12 PM
  #33  
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Thought I would jump in here with some technical information. The C6 uses a 300mm diameter converter, very similar to the truck 6L80 version but with a different bolt pattern. And very low stall, 1800 RPM range. GM did a much better job on the C7 torque converter. They went to a 258mm diameter, ballpark 2500 RPM. It is also a twin disk lock up, so looks to be a very nice piece. The extra RPM is definitely helping out the C7 60s'. The LMR car that went 10.6s NA was using our 245mm billet converter, probably flashing close to 4K. But that is also how we got it to 60 a low 1.5.

Sadly - The C6 and C7 converters are not interchangeable, they use a different pilot setup.

Chris
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