adjustable torque converter
03-24-2003, 04:10 PM
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adjustable torque converter has anyone heard of such a thing? i know the advantages of a higher converter but this car is my daily driver and i dont want to be driving around under my stall. just wondering if its been made or if anyone has heard any rumors
03-24-2003, 04:57 PM
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Re: adjustable torque converter Buick Dynaflow - early to mid '60s - used a
true variable pitch converter.
Buick Super Turbine transmissions - late '60s -
dual-pitch stator for low & high stall (idle
and WOT gave you high stall). Electrohydraulic
control, a cute idea that lasted for all of two
model years.
Neither of these was especially efficient. The
ST400 torque converter weighs easily 10lb more
than the TH400 (I lifted both today, as I took
them away to the Home for Wayward Buick Parts).
You need to modify the stator geometry to
modify the stall. Options for doing that are
few, options for doing it without some other
compromise, way fewer.
Not to say it couldn't happen, but why would
it?
true variable pitch converter.
Buick Super Turbine transmissions - late '60s -
dual-pitch stator for low & high stall (idle
and WOT gave you high stall). Electrohydraulic
control, a cute idea that lasted for all of two
model years.
Neither of these was especially efficient. The
ST400 torque converter weighs easily 10lb more
than the TH400 (I lifted both today, as I took
them away to the Home for Wayward Buick Parts).
You need to modify the stator geometry to
modify the stall. Options for doing that are
few, options for doing it without some other
compromise, way fewer.
Not to say it couldn't happen, but why would
it?
03-25-2003, 03:46 PM
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Re: adjustable torque converter I Installed a switch pitch converter when I installed my TH400 this last weekend.
Supposedly it is a 2400 driving around and a 3400 when I hit the button.
We will see how it works. I am planning on connecting the switch to the trans brake button. I will brake the car to 3200 and then let her go...the stall will switch back to 2400 and I should be able to get some efficiency back.
I guess we will see how it works....
Scott
Supposedly it is a 2400 driving around and a 3400 when I hit the button.
We will see how it works. I am planning on connecting the switch to the trans brake button. I will brake the car to 3200 and then let her go...the stall will switch back to 2400 and I should be able to get some efficiency back.
I guess we will see how it works....
Scott
03-25-2003, 04:33 PM
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Re: adjustable torque converter Wow, haven't thought about that in along time. Like jimmyblue said, Buick had them in the late '60s, and I believe either Caddys or Olds had them also. When I built my '68 Chevelle in '78, I switched from a T-Glide to a TH400 and discussed the -few- TC options available at the time. The best option I came up with at the time was to run a T350 converter, which had a higher stall speed than the 400s did (barely). Only extremely hard core racers were into TCs back then, at least in C FL.
03-25-2003, 04:39 PM
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Re: adjustable torque converter Yeah, I forgot about the efficiency thing. I was told by the racers back then that the variable pitch TCs weren't very effecient.
Maybe they are improved now, but it's a neat idea, IAE.
Maybe they are improved now, but it's a neat idea, IAE.
03-27-2003, 02:17 PM
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Re: adjustable torque converter can anyone pm me the website for vigilante or yank so i can take a look through thier stock? i would really like a bigger stall at the track but with gas prices going like they are i cant afford it on the street <img border="0" title="" alt="[Frown]" src="gr_sad.gif" />
03-27-2003, 07:11 PM
#7
Re: adjustable torque converter yank: www.converter.cc
also look at TCS, one of our sponsors. just click on thier logo. They have a nice selection and a 3000 - 3300 would meet your goals.
also look at TCS, one of our sponsors. just click on thier logo. They have a nice selection and a 3000 - 3300 would meet your goals.
