Does a lower STR result in torque multiplication for a longer period of time?
11-17-2005, 08:35 PM
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Does a lower STR result in torque multiplication for a longer period of time? I realize that torque multiplication by a converter drops off pretty rapidly as rpms increase, but read that a lower STR results in torque multiplication for a longer period of time (higher rpms) than a higher STR, all else being equal (such as stall speed). Is this true? I guess I thought that torque multiplication, though decreasing, existed all the way through until converter lockup, and that a higher STR had more multiplication for the entire time.
Ed
Ed
11-17-2005, 09:26 PM
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According to materials on Yank's old web site the
lower STR brings a lower slope of coupling and a
more gradual loss of torque multiplication.
On their new site there is this:
http://www.converter.cc/techtalk/tech.htm
lower STR brings a lower slope of coupling and a
more gradual loss of torque multiplication.
On their new site there is this:
http://www.converter.cc/techtalk/tech.htm
11-18-2005, 07:27 AM
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Originally Posted by jimmyblue
According to materials on Yank's old web site the
lower STR brings a lower slope of coupling and a
more gradual loss of torque multiplication.
On their new site there is this:
http://www.converter.cc/techtalk/tech.htm
lower STR brings a lower slope of coupling and a
more gradual loss of torque multiplication.
On their new site there is this:
http://www.converter.cc/techtalk/tech.htm
Great info! Thanks. I missed it reading through Yank's website.
Ed
11-19-2005, 12:54 AM
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one reason i got a 1.7 str the other reason--i thought i would hook better with less of a hit to the dr's-- nope spins just as easy as a 2.0 converter i ues to have
11-19-2005, 03:57 AM
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Originally Posted by BubaGumpShrimp
one reason i got a 1.7 str the other reason--i thought i would hook better with less of a hit to the dr's-- nope spins just as easy as a 2.0 converter i ues to have
11-19-2005, 09:56 AM
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its a bit mushy and i really have to give it some gas to go. My tuning is not done yet(false missfire codes) so it doesnt lock up and i cruise around about 800 more rpm then i need to be. All in all i like it... I asked john if it was possiable to make it a 1.7 and he said yea,might be mushy but it will be more efficient then a 2.5.. Right now i kinda dont like it but its more due to the converter not locking all the time.. I was going to plan on 3.73's which would tighten it up a bit..
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11-19-2005, 12:28 PM
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Ed, you're not thinking of getting a low STR converter are you? I really don't think you'd like it based on your previous comments. BTW, your old thinking about STR and torque multiplication sort of challenges conservation of energy laws. 
11-19-2005, 07:53 PM
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Originally Posted by ToplessTexan
Ed, you're not thinking of getting a low STR converter are you? I really don't think you'd like it based on your previous comments. BTW, your old thinking about STR and torque multiplication sort of challenges conservation of energy laws.
Take care.Ed
