torque converter
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Tuned
Joined: Jun 2008
Posts: 412
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From: sc
torque converter
ok! i made the mistake of calling summit and ordering a converter for my truck and they sent me one for a mustang! now my question is what size TC should i get for my 84 f150? it has the mildly built 351w in it maybe 325- 350Hp with the AOD which has been built with 3.73 gears 27 inch tall tires. i'm not racing just daily driving light towingf or now and hauling you guys know truck stuff! i called Edge racing but i don't thing that i need a $600 TC or what do you guys think.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
So what makes the TC that Summit sent a Mustang TC?
As far as I know a TC like a motor does not know what it is in and should work if it bolts up to the flex plate & fits the trany pump.
What was wrong with the TC you had for the AOD trany?
What is it you were looking for in switching TC's?
What is the working range of the cam?
What does the truck weigh as it also plays in to the TC like the other things you listed.
Dave ----
btw I bought a custom stall 9" for my drag car 25 years ago and it was a $1000 wonder what it would go for today?
As far as I know a TC like a motor does not know what it is in and should work if it bolts up to the flex plate & fits the trany pump.
What was wrong with the TC you had for the AOD trany?
What is it you were looking for in switching TC's?
What is the working range of the cam?
What does the truck weigh as it also plays in to the TC like the other things you listed.
Dave ----
btw I bought a custom stall 9" for my drag car 25 years ago and it was a $1000 wonder what it would go for today?
Moderator
Joined: Jan 2001
Posts: 56,966
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From: Virginia
I would run the stock convertor or one with the stock stall speed. Stall convertors produce too much heat in the transmission oil and need a very large aux cooler.
If your engine is built enough to where you need a stall, it's not going to be a very good truck engine for towing.
If your engine is built enough to where you need a stall, it's not going to be a very good truck engine for towing.
FTE Legend
Joined: Nov 2015
Posts: 30,860
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From: Angier, NC
I would run the stock convertor or one with the stock stall speed. Stall convertors produce too much heat in the transmission oil and need a very large aux cooler.
If your engine is built enough to where you need a stall, it's not going to be a very good truck engine for towing.
If your engine is built enough to where you need a stall, it's not going to be a very good truck engine for towing.
Dave ----
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Tuned
Joined: Jun 2008
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From: sc
This TC seems to be out of balance because I’ve checked everything else I’ve had the tires & driveshaft rebalanced new engine & transmission mounst replaced harmonic balancer checked. The cam is a RV type the cam card got lost during the build so I couldn’t get the exact numbers. It fits fine mates up well but it just seem to lack the performance that the C4 that was in it had! Really sluggish on take off compared to the C4. I’ve had the lines checked already to ensure the pressure is good as well! It’s a TCI constant pressure valve body! The vibration goes away at 45mph but, that’s why I don’t drive it far!
FTE Legend
Joined: Nov 2015
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From: Angier, NC
I am not up on what motors/years need what weight on the balancer & flywheel/flex plate so you may be right that the TC needs to be balance for your year motor?
Who did the motor build and I take it they did not balance it as they would need the flex plate/flywheel so the TC would not need any weights on it.
Wait where is the ring gear flex plate or TC?
As for performance between the 2 tranys hove you checked what the gear ratios are between the 2? If the C4 had a lower first gear that would make it better off the line.
I take it the trany was the only change, no larger tires & gear ration change?
Dave ----
Who did the motor build and I take it they did not balance it as they would need the flex plate/flywheel so the TC would not need any weights on it.
Wait where is the ring gear flex plate or TC?
As for performance between the 2 tranys hove you checked what the gear ratios are between the 2? If the C4 had a lower first gear that would make it better off the line.
I take it the trany was the only change, no larger tires & gear ration change?
Dave ----
Senior User
Joined: Jul 2007
Posts: 196
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From: Middle Tennessee
Torque converters for the AOD do not have balance weights on them. The balance weights are on the flywheel, and are engine specific.
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Tuned
Joined: Jun 2008
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From: sc
alrighty then my 351 has the 164 tooth flywheel or flexplate 28oz balance along with the harmonic balancer 28oz. now you guys are saying to run the stock converter which i'm fine with but which one the low stall or high stall and where is the best place to get it from although summit told me that they'd give me a store credit on a new one but i'm not to sure about gout back with them because they are the ones that told me that they sold me one for the mustang & oh it's a B&M torque master!!
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Cargo Master
Joined: Mar 2002
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From: W (BY GOD) V
IMO
...mildly built 351w in it maybe 325- 350Hp with the AOD
As for sluggish, the AOD TV has been adjusted to OEM specs and/or with any modification(s) made.
http://www.becontrols.com/aod.shtml
Thread Starter
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Tuned
Joined: Jun 2008
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From: sc
when i asked which stall speed i meant 1300-1600 low stall or 1700-1900 high stall... that seems to be the stock converter stall speeds not those high performance ones like 2800 sorry for the confusion! Thank you all for your help and advice too!
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From: Virginia
For fuel mileage I would pick the least amount of stall rpm. I guess it would not matter though if it's a lock-up convertor. Are these lock-up convertors? Does your trans still have the lockup feature?
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Tuned
Joined: Jun 2008
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From: sc
well i talked to a tech at monster transmission and they recommended their AOD Torque Converter 1600-1800 Heavy Duty Low Stall so i guess i'll go with that on since it's in between the other two that they offer. and the price/warranty are right on point!
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