Th400 auto vs manual valvebody
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Teching In
Joined: Oct 2013
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Th400 auto vs manual valvebody I'm looking at a used fti th400 stage 2 with auto valvebody. Few questions for everyone.
1. Can they be manually shifted in all gears?
2. Seller said it doesn't have an electronic kickdown switch. Does it need one? If so, how are people setting them up on ls truck intakes?
3. Does it operate off vacuum?
4. And last but not least, for a 5xx whp 3200 lb STREET/strip car, would you prefer an auto valve body or manual?
1. Can they be manually shifted in all gears?
2. Seller said it doesn't have an electronic kickdown switch. Does it need one? If so, how are people setting them up on ls truck intakes?
3. Does it operate off vacuum?
4. And last but not least, for a 5xx whp 3200 lb STREET/strip car, would you prefer an auto valve body or manual?
I'm looking at a used fti th400 stage 2 with auto valvebody. Few questions for everyone.
1. Can they be manually shifted in all gears?
Yes it can be controlled manually as well.
2. Seller said it doesn't have an electronic kickdown switch. Does it need one? If so, how are people setting them up on ls truck intakes?
in order to have passing gear you will need the kick down switch.
3. Does it operate off vacuum?
Yes it operates off of vacuum, it comes with the vacuum modulator already installed.
4. And last but not least, for a 5xx whp 3200 lb STREET/strip car, would you prefer an auto valve body or manual?
This one is a loaded question! This is going to depend 100% on user preference. If you like shifting and banging gears you should probably go with the manual level 3, if you want a more drive to church feel and don't want to worry about having to shift gears all the time; go with the level 2 auto shift
1. Can they be manually shifted in all gears?
Yes it can be controlled manually as well.
2. Seller said it doesn't have an electronic kickdown switch. Does it need one? If so, how are people setting them up on ls truck intakes?
in order to have passing gear you will need the kick down switch.
3. Does it operate off vacuum?
Yes it operates off of vacuum, it comes with the vacuum modulator already installed.
4. And last but not least, for a 5xx whp 3200 lb STREET/strip car, would you prefer an auto valve body or manual?
This one is a loaded question! This is going to depend 100% on user preference. If you like shifting and banging gears you should probably go with the manual level 3, if you want a more drive to church feel and don't want to worry about having to shift gears all the time; go with the level 2 auto shift
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FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Stupid question, but what tells these old transmissions what rpm to shift and how accurate is it? I remember having a 700R4 that had the TV cable but what are the mechanical limits of that?
There is a governor in the unit that controls that along with vacuum.
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
Back in the day when the 400 came out, first thing we did was disc that annoying elect kickdown switch-it would drop the trans down into first gear,
much preferred to limit it to 2nd gear-never used one since, lol
much preferred to limit it to 2nd gear-never used one since, lol
