Ck's new plate......

[Steve V]

I used CK's plate in a freinds tranny in Nov. Trans had a soft 3-4 shift. Dropped valve body and per CK's advice was going to shim the 3-4 accum. I was inspecting the hole in the plate. #28 hole was only about .078(5/64). I did a search on the net and in his book and most called for .110. I opened the plate up to this size and the 3-4 was more noticeable. I am wondering is there a reason for the .078 hole vs. the .110 the book recommends?

This was with a CZ valve body.

 

[chris718]

smaller hole reducers the shock on the od carrier.a firm 3/4 is really not necessary but it is important to understand that each and every combo differs and its easier to drill out a hole than make it smaller.

 

[Steve V]

Chris is there a specific reason the CZ valve body shifts softer than a BRF on the 3-4. This is the 2nd car I've noticed that on. All my BRF's have a very noticable 3-4.

BTW that book is priceless to have with these trannys!

 

[chris718]

different accumulator valve.brf has the largest diameter.this doesnt affect line psi but accumulator back pressure,slightly increasing shift.does this car have our accumulator valve installed on the accumulator valve?

 

[bison]

Be sure not to delete the accumulator and run a .110 hole. You will have OD carrier breakage if you do. If you run the correct accumulator valve spring (the one in the vb), accumulaor spring, plate hole size, and 3 clutch setup in 4th you will be fine. Chris ill be calling in tomorrow.

 

[Steve V]

Yes,it has the CK kit and parts. I will be calling Michelle mon or tuesday for a LO roller and plate. I still haven't got my teflon ring kit or pin extender.

Is there a valve/spring I can change in the CZ valve body to get the BRF WOT shifts?

 

[bison]

Yes,it has the CK kit and parts. I will be calling Michelle mon or tuesday for a LO roller and plate. I still haven't got my teflon ring kit or pin extender.

Is there a valve/spring I can change in the CZ valve body to get the BRF WOT shifts?

The governor circuit is a little different. You would need a governor and the BR vb to get the same shift points without playing around too much. I prefer the CZ shift points and overall habits over the BR vb myself in a TR with heads and cam. Kickdown is more lively and the shift points are higher with the CZ.