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Author Topic:   Torque converter question?
thumpin cat
Gearhead

Posts: 458
From: Santa Barbara, California
Registered: Mar 2002

posted 05-14-2003 04:06 AM     Click Here to See the Profile for thumpin cat     Edit/Delete Message   Reply w/Quote
In regard to torque converters when they say the stall of a torque converters is 4200-4500 what is the actual stall?

Would you say that the converter is a 4500 stall converter?

please let me know thanks

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ted
Journeyman

Posts: 62
From: Central Texas
Registered: May 2003

posted 05-14-2003 07:19 AM     Click Here to See the Profile for ted   Click Here to Email ted     Edit/Delete Message   Reply w/Quote
Stall in the converter depends upon the torque from the engine. I've run the same converter on three different combinations and stalled three different rpms. With a transbrake and the same TCI converter, my 458 Fe stalled at 5500, the 416 Fe stalled at 5200, and the 337 Y-Block stalls at 4500.

Just changing to different carburetor spacers, size of carb, exhaust system, etc. affects the converter.

------------------
Ted E.
Fe's are plenty fast, but "Y"'s are fun when they run in the nines.

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74merc
Gearhead

Posts: 1006
From: Demopolis AL
Registered: Jun 99

posted 05-14-2003 07:22 AM     Click Here to See the Profile for 74merc   Click Here to Email 74merc     Edit/Delete Message   Reply w/Quote
the actual stall depends on the engine's power.
If you have a weak engine, a 2800 stall will actually stall lower, 2000rpms (example). If you have a really stout engine a low stall will stall higher, although not to the same gap of the weaker engine/high stall combo.

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74merc
Gearhead

Posts: 1006
From: Demopolis AL
Registered: Jun 99

posted 05-14-2003 07:23 AM     Click Here to See the Profile for 74merc   Click Here to Email 74merc     Edit/Delete Message   Reply w/Quote
heh, beat me to it.

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Moneymaker
Administrator

Posts: 25883
From: Lyons, IL, USA
Registered: May 99

posted 05-14-2003 10:28 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Yes. See the above.

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Alex Denysenko
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thumpin cat
Gearhead

Posts: 458
From: Santa Barbara, California
Registered: Mar 2002

posted 05-14-2003 12:04 PM     Click Here to See the Profile for thumpin cat     Edit/Delete Message   Reply w/Quote
if a stall converter manufacturer said their converter stalls between 4200-4500 would you call that converter a 4500 stall converter?

some people on this forum suggested that i change to a 4500 stall converter so would a converter that stalls between 4200-4500 ok?

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thumpin cat
Gearhead

Posts: 458
From: Santa Barbara, California
Registered: Mar 2002

posted 05-14-2003 05:07 PM     Click Here to See the Profile for thumpin cat     Edit/Delete Message   Reply w/Quote
What would a 4200-4500 torque converter stall at in a 69 Cougar (3200 pounds) gutted interior.
351w 10:8:1 compression
Speed Demon 750 carb
Victor Jr. Intake
Victor Jr. heads
Comp cams extreme energy. 250, 256 duration @ 50. 554, 558 lift
Hooker headers
3 in exhaust

4:56 gears
30 X 11 slicks
rear coilover shocks
ladder bar
summit adjustable shocks.

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jsracingbbf
Gearhead

Posts: 2751
From: Batesville,MS. , U.S.A.
Registered: Mar 2002

posted 05-14-2003 09:43 PM     Click Here to See the Profile for jsracingbbf   Click Here to Email jsracingbbf     Edit/Delete Message   Reply w/Quote
Call Kenny Ford at PTC torque convertors in Muscle Shoals ALA. Tell him what you posted in the last post. He will tell you with no BS'in. He is one of those hands on kind of owners.
He used to work for Bill Taylor at TCI before they sold it to Felpro. Many years in the convertor business. Also tell him I said Howdee.
JS

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