When can you use a locking torq convertor?
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Race Director
Joined: Mar 2001
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From: Living in the Hartland
When can you use a locking torq convertor?
Have on in my Formula and it seems it would be great for any trans. Not sure why you couldn't use one on a Th350/400 and use a loose stall then click the TC on when cruising. School me on why you can't/wouldn't.
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
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St. Jude Donor '06-'10, '13
Re: When can you use a locking torq converter? (Fevre)
a lockup converter will only work with the transmission it was made for - can't put a 700R4 converter on a 350/400.
There is a 350C model that has a lockup converter and was used in 80-81 Corvettes and other GM vehicles and trucks. You could use that, but the parts and especially the converters are hard to find in the aftermarket and they cost a lot of money.
If you want a lockup, just install the 700R4 / 200R4. You will get a much lower first gear, overdrive 4th gear and the lockup converter. For the price of rebuilding a 350C you can get a 700R4 conversion done.
There is a 350C model that has a lockup converter and was used in 80-81 Corvettes and other GM vehicles and trucks. You could use that, but the parts and especially the converters are hard to find in the aftermarket and they cost a lot of money.
If you want a lockup, just install the 700R4 / 200R4. You will get a much lower first gear, overdrive 4th gear and the lockup converter. For the price of rebuilding a 350C you can get a 700R4 conversion done.
Thread Starter
Race Director
Joined: Mar 2001
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From: Living in the Hartland
Re: When can you use a locking torq converter? (BSeery)
Guess I was wonder more why there is no after market ltc avail, most be a reason sicne all new trannies come with em. You could run a highway gear and high stall, say 3.08 and 3000 stall but lock it for cruise at 2500. I have a 700r4 in my formula with a 2800 stall.
Safety Car
Joined: Jun 2001
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From: Severna Park Md
Re: When can you use a locking torq convertor? (Fevre)
What about switch pitch convertors? Havnt I heard of them being used on th350 and 400 trans? Its not a lock up vertor but you can controll the stall speed with a switch.
How about a clutch automatic? Ever heard of one of those. Its an automatic trans that uses a clutch pedal to dis-engage the convertor. So you can rev it real high then dump the pedal to launch hard. The rest of the way it functions like a standard automatic.
Either of these two dont make up for the advantage of the lockup convertor. When a lockup vertor is locked, not only does it reduce rpms but there is less heat generated since the slippage has been eliminated while locked.
How about a clutch automatic? Ever heard of one of those. Its an automatic trans that uses a clutch pedal to dis-engage the convertor. So you can rev it real high then dump the pedal to launch hard. The rest of the way it functions like a standard automatic.
Either of these two dont make up for the advantage of the lockup convertor. When a lockup vertor is locked, not only does it reduce rpms but there is less heat generated since the slippage has been eliminated while locked.
Burning Brakes
Joined: Mar 2001
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From: Nashville TN
Re: When can you use a locking torq convertor? (Fevre)
Higher stall generally means smaller diamter on a 350/400 convertor. That does not leave much room for convertor clutch lockup material.
Burning Brakes
Joined: Oct 2002
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Re: When can you use a locking torq convertor? (Fevre)
I have a trans out of a 82 vette,supposed to have about 20,000 miles,has the lock up converter also. it's for sale if you're interested will take $400.00 plus shipping from Houston,Texas.
if any one is interested let me know at
vonleyser@yahoo.com
if any one is interested let me know at
vonleyser@yahoo.com
