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New Continental High Stall Converter
https://slantsix.org/forum/viewtopic.php?t=4552		 Page 1 of 2
Author:  Doctor Dodge [ Fri Nov 29, 2002 4:23 am ]
Post subject:  New Continental High Stall Converter
Saved some lunch money and invested in a new converter.

I told the folks a Continental to make the unit high stall but super efficient, they said it should flash to 3800 behind my small (209) SL6 with only 4-5 % loss.
Time to go do some wrenching! :)
DD
Image
Author:  mmsc [ Fri Nov 29, 2002 6:05 am ]
Post subject:  converters
Doug, that looks & sounds like a nice converter. What do you have in the car now? Is it a 9" converter?
I have located an 11" 904 converter that is rated at 2500 stall & was behind a small block, any ideas in difference when bolted behind a Slant?
Author:  Dart270 [ Fri Nov 29, 2002 12:12 pm ]
Post subject:  no 11"
Bob,

An 11" will stall lower than your stock 10.75" converter. I tried an 11" and got about 1700 stall behind a warmed slant. Definitely go for a 10" or 9" (Dennis and Elam are selling them, I think?). Contintental is a good company, and I've heard Midwest is good too.

Lou
Author:  Jopapa [ Fri Nov 29, 2002 4:56 pm ]
Post subject: 
I'm still kinda foggy on the advantage(s) of high stall torque converters. What benefit do they have? Do they last as long as stock TCs?
Author:  Dart270 [ Sat Nov 30, 2002 7:41 am ]
Post subject:  basically...
A high-stall converter allows the engine to rev up into its powerband before launch, or during acceleration in a high gear. You can sit on the line (or at stoplight) and hold brakes and apply gas to rev to, say, 2800 RPM so that a high-perf engine does not lug. Most high HP engines have their power range start around 2500-3000 rpm, so they are doggy with stock converters.

As long as you keep a converter cool (trans cooler) and it is well built, then it should last as long as a stock one. You get gains in performance even with a basically stock engine because you are getting the engine to a higher torque and HP range right off the line.

Downsides are a little worse gas mileage and a little more trans heat from the increased slippage. A good 10" converter (2600-3000 stall RPM) will only cost you maybe 1 mpg and will feel almost like a stock converter until you stand on it.

Lou
Author:  Doctor Dodge [ Sat Nov 30, 2002 10:09 am ]
Post subject: 
You can think about conveter stall speed in terms of how much engine RPM you give a manual shift clutch before you let it out. Drop the clutch with lots of RPM and you get a good "jump".
The nice thing about a torque converter is that it will not pull the RPMs way down like a manual shift clutch "dump" will, instead, the converter actually multiplys the torque until reaching its stall speed RPM, at that point the stator inside the unit locks and the converter then acts like a fluid coupler.

The thing to always think about when selecting a high stall converter to to know your freeway cruising RPM, you want a stall speed lower then your cruise RPM or else the stator will never lock as you drive down the highway, this leads to slippage, heat loss and short converter life. This is why high stall converters and "tall" freeway rearend gear ratios are not a good combination.
A torque converter is a pretty "trick" piece of engineering work, they have a "black magic" about them because they are welded shut and the average person never gets to look inside.
DD

PS for Bobby, my current converter is a reworked stock size (10 3/4) and it is not real efficient.
Author:  slantzilla [ Sat Nov 30, 2002 6:57 pm ]
Post subject: 
Doug, if you don't mind me asking, how many pennies did that beauty set you back? Sometime in the future I'll be in the market for the Duster. :shock:
Author:  FuryIII [ Sun Dec 01, 2002 9:21 am ]
Post subject:  New Continental High Stall Converter
im not a member here but i asked about converters and slantzilla guided me here from moparts. you guys have a great mod in that guy.
Author:  slantzilla [ Sun Dec 01, 2002 9:29 am ]
Post subject: 
Thanks FuryIII! That's what I keep telling these guys..... :oops: :shock: :D
Author:  Doctor Dodge [ Sun Dec 01, 2002 10:04 am ]
Post subject: 
Dennis is OK, he just needs to get his car to run the number! :shock: :wink:

As for that converter, lots of $$$, I have not eaten lunch for the last 140 days! :? (remember math word problems :x :wink: )
DD
Author:  Patrick Devlin [ Sun Dec 01, 2002 10:40 am ]
Post subject: 
I'm pretty good at math word problems.

Q. Every day that Doug eats lunch, he buys a sandwich that costs $4.00 and a drink that costs $1.00. If Doug decided to not eat lunch for 140 days so that he can save for a new torque convertor, how much money will Doug have saved at the end of the 140 days?

A. $4.00 + $1.00 = $5.00, $5.00 x 140 days = $700!

Wow Doug, I hope you spend less on the average lunch than I do!
Author:  slantzilla [ Sun Dec 01, 2002 1:41 pm ]
Post subject: 
Hey now Doug, my car will always run the number, just not the one I put on it. :shock: :shock:

When you gonna have yours back togehter? I'm going to be following the converter deal pretty close. :D
Author:  Jopapa [ Sun Dec 01, 2002 1:46 pm ]
Post subject: 
Quote:
I'm pretty good at math word problems.

Q. Every day that Doug eats lunch, he buys a sandwich that costs $4.00 and a drink that costs $1.00. If Doug decided to not eat lunch for 140 days so that he can save for a new torque convertor, how much money will Doug have saved at the end of the 140 days?

A. $4.00 + $1.00 = $5.00, $5.00 x 140 days = $700!

Wow Doug, I hope you spend less on the average lunch than I do!
Holy Moly, TCs can cost that much???
Author:  Slant Cecil [ Sun Dec 01, 2002 3:08 pm ]
Post subject: 
$700 is a good price on a 3800 stall. Some race convertors are now selling for just over a $1,000.

Cecil
Author:  slantzilla [ Sun Dec 01, 2002 8:07 pm ]
Post subject: 
Converters are an area where you definitely get what you pay for. :shock:
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