th400 kickdown
th400 kickdown I have a th400 paired with a '98 LS1 and was wondering if anyone had any info. on kickdown switch options. I've been searching and keep coming up empty handed. Any info. is greatly appreciated. Thanks.
UPDATE:
So i put something together and its working great. Its not the prettiest thing but its functional.
right: old chevy truck left: s10 pedal assembly
Finished product
UPDATE:
So i put something together and its working great. Its not the prettiest thing but its functional.
right: old chevy truck left: s10 pedal assembly
Finished product
Last edited by Shea05; Mar 31, 2009 at 12:34 PM.
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Joined: Dec 2008
Posts: 434
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From: Az
You can adapt the electronic switch to you gas pedal or even your carbureutor.
B&M has a kickdown switch for converting a car from cable kickdown to electronic but thats only for carb. cars
there might be a way to hook that up to the gas pedel but some fab. would be necessary
http://store.summitracing.com/partde...5&autoview=sku
just running a vacume line to the mod. will allow the trans to kick down-by adding a switch to the trans, it can kick down into first gear, which sometimes is a pita-back when they first came out, we used to disc the switch-i have not used one since the 60's on one, lol
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just running a vacume line to the mod. will allow the trans to kick down-by adding a switch to the trans, it can kick down into first gear, which sometimes is a pita-back when they first came out, we used to disc the switch-i have not used one since the 60's on one, lol
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On The Tree
Joined: Jun 2007
Posts: 165
Likes: 0
From: haltom city/DFW, Texas
You can adjust the modulator to get a vaccum kickdown , but it isn't consistent .The electric detent solenoid only worked at wide open throttle so you just need a 12 volt signal then(at WOT) . The switch pictured will work if you can get the travel correct . The late th400s in 3/4 and 1 ton trucks worked off TPS voltage through the PCM .
You can adjust the modulator to get a vaccum kickdown , but it isn't consistent .The electric detent solenoid only worked at wide open throttle so you just need a 12 volt signal then(at WOT) . The switch pictured will work if you can get the travel correct . The late th400s in 3/4 and 1 ton trucks worked off TPS voltage through the PCM .
thanks
mark jr.
On The Tree
Joined: Jun 2007
Posts: 165
Likes: 0
From: haltom city/DFW, Texas
Travel should be very easy to figure out. I was going to mount this under the hood and use the cable to activate it, but it would look very ugly under the hood, so I will fab it up by the gas pedal like factory. Yeah, these switches require a 12 volt signal, then at WOT, sends the signal to the solenoid. I probably should have mentioned that these switches were used from '86-older for a fact. Possibly '87 was the last year. These switches have been getting harder to find left in cars. I plan on running both kickdown and vaccuum mod like the General has done for many years. How can you really adjust the vaccuum modulator? I've never come across that before..
thanks
mark jr.
thanks
mark jr.
Most modulators are adjustable , the stem that you install your vaccum line on will have a screw inside . You can use a small slotted screwdriver and turn it in or out a couple of turns to raise or lower modulator pressure for earlier or later shifts , or to change shift feel somewhat .
mark jr.
ok, so using blackduk's suggestion i found a kickdown like his picture above and made my own mount/bracket type thing at the pedal. i will post some pictures asap
also, i forgot to mention i have a LS1 and TH400 in a '93 s10 so i've been making all kinds of **** like this for it, haha
also, i forgot to mention i have a LS1 and TH400 in a '93 s10 so i've been making all kinds of **** like this for it, haha
