Torque Converter
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Posting Guru
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From: Iowa
Torque Converter
Im doing a 5.4l swap for my truck and i have come to a fork in the road... I dont know where to install the 4.6l torque converter or the 5.4l torque converter... the 4.6l has a higher stall speed than the 5.4l.. but im not sure what it is.
Anybody have any opinions or ideas?
Thanks
Anybody have any opinions or ideas?
Thanks
Post Fiend
Joined: May 2006
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From: Central Florida
Well, I am not so sure the 4r70 will handle the 5.4 so well, you might as well reuse your 4.6l converter. Upgrade the converter when you have to upgrade the trans, for the 4r100 factory tech includes a new t/c, they may for the 4r70 as well.
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Originally Posted by ReAX
Well, I am not so sure the 4r70 will handle the 5.4 so well, you might as well reuse your 4.6l converter. Upgrade the converter when you have to upgrade the trans, for the 4r100 factory tech includes a new t/c, they may for the 4r70 as well.
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From: Iowa
Im not worried about the tranny.... ive been through one already and i was so brutal to it and the only thing that offed it was a dang bearing... and i even drove the truck 150 miles home to put the new tranny in it.... Now thats tough in my book...
But back to the torque converter question...any opinions... i dont know if the 5.4l will benifit much from having a higher stall or not.
But back to the torque converter question...any opinions... i dont know if the 5.4l will benifit much from having a higher stall or not.
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From: Iowa
nobody said anything about a super charger....and i was told by somebody on here that the 4r70w with a few mods will take 600 HP.. with out a problem...
Dont Knock something you havent tried...
Dont Knock something you havent tried...
Post Fiend
Joined: May 2006
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From: Central Florida
I would think the 4.6l had a slightly higher stall rating, making the motor turn faster before appling power to the trans. I wouldn't think it would make a huge difference in your set up. I certainly wouldn't spend money on a stock one, even though aftermarkets are rather expensive.
If I do a t/c before my trans goes, I will get either a precision industries Stallion or Factory Tech dominator. Either seem to be money well spent because of the higher multiplier along with the higher stall speed.
If I do a t/c before my trans goes, I will get either a precision industries Stallion or Factory Tech dominator. Either seem to be money well spent because of the higher multiplier along with the higher stall speed.
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Posting Guru
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From: Iowa
I have acess to both... all i want is some opinions on which torque converter to go with... the 4.6l that does stall higher... or the 5.4l that will hook up a bit earlyer.... it would tow better with the 5.4l converter but leave harder with the 4.6l converter i suspect. any objections to this thought process.
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From: Louisville,Ky.
Well, the 4R100 in a SD with a 5.4L stalls higher than the F150 with a 5.4L. I'm thinking the higher stall speed would get you into the torque band of the engine faster and be a benefit all of the way around. I'd try the 4.6 converter. I wish my 5.4L stalled a bit higher when towing, myself.
Postmaster
Joined: Oct 2006
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From: SE Texas
Originally Posted by BURNSTOUGHFORD
Ya, I like your thinkin LXMan. I wonder why Ford made it stall lower on the 150's
In your case-I'd use the converter with the fewest miles-the clutch in the OEM torque converter is weak on both versions,so you'd be better off with the fresher of the two.
And the 4R70W will handle alot of power reliably.
JL
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From: SE Texas
Originally Posted by ReAX
I I will get either a precision industries Stallion or Factory Tech dominator. Either seem to be money well spent because of the higher multiplier along with the higher stall speed.
JL