Turbo400 shift delay

[Bellman]

Hi everyone.. This is my first post on this board.. It appears that you guys have an excellent tranny tech forum here..

My question is this.. I just had a new turbo400 built for my small block Ford by a local tranny builder.. I destroyed my old turbo400 in a wreck.. My old th400 had a shift delay from when the shifter was moved, and when the next gear would engage.. I had to use "Kentucky windage" when shifting gears, cause if I waited for the shift lite..The delay would put the motor on the rev limiter..

Is this a common deal with Turbo 400's.. My tranny builder said my new tranny should shift "right now".. But I've had another person tell me his turbo400 did the same thing.. And that was normal for them :confused: .. Is that so ??

[Hutch]

Some have a slight delay and some don't . There's a lot of factors to take into consideration before saying the trans is slow but for sure there are some trans/valve body combinations that are.Also the rpm/sec rate can get very quick with a 3 speed and it doesn't take much time to accumulate a lot of rpm.
What kind of rpm increase after the shift were you seeing? Also explain "kentucky Windage" .

Take care, Hutch

[dizope]

I thought I had the same problem but it's just that the motor RPM's real fast.

[Robert1320]

Hey, Bellman glad to see you over here!

These guys will help you out!

[Bellman]

What kind of rpm increase after the shift were you seeing? Also explain "kentucky Windage" .


The "original" term Kentucky Windage had to do with shooting rifles at long distances.. If a target was to far away to aim at directly.. And you were real familar with how your rifle shot.. You could raise the barrel up just high enough, to drop a bullet right on the target.. Give it some Kentucky Windage.. Nothing scientific.. Just having enough experience shooting the same gun, to be accurate with a long range guesstimated shot..

With my tranny's way of shifting, I had to guesstimate when to pull the shifter to get it to shift on time.. I had to use some kentucky windage on it..

And the rpms came real fast, even though I only had 3.55 gears with a 28 inch tall tire.. My shift light was set at 6600 rpms.. With the time it takes to react to seeing the light..Plus the delay time in the tranny shifting.. I would hit my 7200 rpm rev limiter, if I tried to shift by the shift light..

This in car video will show how quick the rpms come.. I'm shifting first to second before the light comes on, but I'm hitting the 6600 rpm shift point pretty good.. I hope my new tranny hits quicker.. And I hope my new "spragless" converter drops the rpms further between shifts..

http://media.putfile.com/blowoff

[dizope]

I just set my 2nd gear shift lite 500 rpms lower than where I want the car to shift. My tach has two shift lite stages.

I know it's not the tranny. It's a quality piece from Mike's Transmission.

[Hutch]

[quote=Bellman;288099]The "original" term Kentucky Windage had to do with shooting rifles at long distances.. If a target was to far away to aim at directly.. And you were real familar with how your rifle shot.. You could raise the barrel up just high enough, to drop a bullet right on the target.. Give it some Kentucky Windage.. Nothing scientific.. Just having enough experience shooting the same gun, to be accurate with a long range guesstimated shot..

With my tranny's way of shifting, I had to guesstimate when to pull the shifter to get it to shift on time.. I had to use some kentucky windage on it..

quote]

After watching the video, things are happening pretty fast and the converter on that pass certainly doesn't help matters at all.

Let me know how the new setup works.

Hutch