How to disable Turbo 400 kick down?

joespanova · 11-24-2017, 10:03 PM

On my street driven 69 Chevelle with a 496 ( plenty of power ) I don't want the kick down functioning.
I've already disconnected the kick down solenoid , now I apparently still have "modulated" kick down function.
How can I completely disable the kick down?
Thanks in advance.

dartman · 11-24-2017, 10:22 PM

Quote:

Originally Posted by joespanova

On my street driven 69 Chevelle with a 496 ( plenty of power ) I don't want the kick down functioning.
I've already disconnected the kick down solenoid , now I apparently still have "modulated" kick down function.
How can I completely disable the kick down?
Thanks in advance.

You could put a full Manual valve body in it

joespanova · 11-24-2017, 10:53 PM

Quote:

Originally Posted by dartman

You could put a full Manual valve body in it

Is that the ONLY way to disable it? C'mon , there's gotta be another way.

Ed Wright · 11-24-2017, 11:42 PM

Quote:

Originally Posted by joespanova

Is that the ONLY way to disable it? C'mon , there's gotta be another way.

Why don't you call a local transmission shop?

Mark Yacavone · 11-24-2017, 11:58 PM

Did you try screwing the modulator adjustment in?

Might have to screw it out, then re-work the governor, now that I think about it.
Not your normal S/SS question, Joe.

joespanova · 11-25-2017, 12:11 AM

Quote:

Originally Posted by Ed Wright

Why don't you call a local transmission shop?

Because.....its Fri. night , its 10:30 and I want to know , now.

The modulator and "kick down" function isn't so clear to me.....I wanted to delay the 1-2 shift so I increased modulator tension , to solve that.
Now how all this relates to eliminating downshift / kick down......I have no clue.

Mark Yacavone · 11-25-2017, 12:26 AM

Quote:

Originally Posted by joespanova

Because.....its Fri. night , its 10:30 and I want to know , now.

The modulator and "kick down" function isn't so clear to me.....I wanted to delay the 1-2 shift so I increased modulator tension , to solve that.
Now how all this relates to eliminating downshift / kick down......I have no clue.

Well , you're in luck then, Joe because I'm here in Az.
Find the 3-2 valve and block it so it won't move. 2-3 should work fine with absence of gov. and mod. pressure for downshifts after slowing.

Tom Goldman · 11-25-2017, 10:35 AM

Like Mark said just block the 3-2 downshift valve.
Small valve at bottom right of photo .
I use a piece of 3/16" brake tubing ,about7/8" long , file it for a final fit .
Been doing this for years ,works great .

joespanova · 11-25-2017, 04:36 PM

Quote:

Originally Posted by Tom Goldman

Like Mark said just block the 3-2 downshift valve.
Small valve at bottom right of photo .
I use a piece of 3/16" brake tubing ,about7/8" long , file it for a final fit .
Been doing this for years ,works great .

Thanks guys.......in this view is the mod present? Where is the tubing?

Tom Goldman · 11-25-2017, 05:12 PM

Sorry ,been off line for a while ,Damn Work ! No it is not shown in the picture . You substitute it in place of the spring .
When I get home , I have a good picture of it I'll post.

11-24-2017, 10:03 PM	#1
joespanova Senior Member Join Date: Jun 2011 Location: Ga. Posts: 521 Likes: 7 Liked 13 Times in 11 Posts	How to disable Turbo 400 kick down? On my street driven 69 Chevelle with a 496 ( plenty of power ) I don't want the kick down functioning. I've already disconnected the kick down solenoid , now I apparently still have "modulated" kick down function. How can I completely disable the kick down? Thanks in advance.

11-24-2017, 11:58 PM	#5
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,414 Likes: 2,579 Liked 4,447 Times in 1,693 Posts	Re: How to disable Turbo 400 kick down? Did you try screwing the modulator adjustment in? Might have to screw it out, then re-work the governor, now that I think about it. Not your normal S/SS question, Joe. __________________ We are lucky we don't get as much Government as we pay for..... Will Rogers Last edited by Mark Yacavone; 11-25-2017 at 12:13 AM.

11-25-2017, 10:35 AM	#8
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,435 Likes: 774 Liked 699 Times in 203 Posts	Re: How to disable Turbo 400 kick down? Like Mark said just block the 3-2 downshift valve. Small valve at bottom right of photo . I use a piece of 3/16" brake tubing ,about7/8" long , file it for a final fit . Been doing this for years ,works great . Attached Thumbnails __________________ Tom Goldman 1500 SG , 1506 STK

11-25-2017, 05:12 PM	#10
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,435 Likes: 774 Liked 699 Times in 203 Posts	Re: How to disable Turbo 400 kick down? Sorry ,been off line for a while ,Damn Work ! No it is not shown in the picture . You substitute it in place of the spring . When I get home , I have a good picture of it I'll post. __________________ Tom Goldman 1500 SG , 1506 STK