700R4 build thread.

[jamyers]

Using the TransGo Separator Plate, with a Corvette 2nd Servo Piston and a .500 Boost Valve..

Transgo says that with the bigger 2nd Piston, drill passages A and C to between .093" to .110".

I understand the Corvette servo can give rough 1-2 shifts, would drilling these to the smaller end of the scale keep the shifting from being too harsh?

Also, I think that passage A = 3rd gear Apply and C = 2nd gear apply, can anybody confirm that?

[clinebarger]

Originally Posted by jamyers

Using the TransGo Separator Plate, with a Corvette 2nd Servo Piston and a .500 Boost Valve..

Transgo says that with the bigger 2nd Piston, drill passages A and C to between .093" to .110".

I understand the Corvette servo can give rough 1-2 shifts, would drilling these to the smaller end of the scale keep the shifting from being too harsh?

Also, I think that passage A = 3rd gear Apply and C = 2nd gear apply, can anybody confirm that?

Post a pic of your instruction sheet!

2nd apply with a 093 piston & stock converter......No bigger than .076".

3rd & 4th apply are good at .110"

A .500" TV Boost is dangerous territory for stock Cast Pump Rings!!

[jamyers]

Pic of the instructions is below, with my notes scribbled on it. Both holes measure as i wrote on the sheet, a numbered drill (mics at .082) fits a bit loose and the other (mics at .086) won't go in.

I've got a new 10-vane pump on the way, Wellington Parts number A74531AK. I believe it's got steel rings, but the description on Amazon doesn't say. Any way to confirm?

I'm also going with hole A = 3rd and C= 2nd?

Regarding the .500 boost valve, the trans came with a .420 in it. For a stock converter, stock 350 engine, 3.73 rear gear daily driver (that might see some performance add-ons in the distant future), would either boost valve be preferrable?

[jamyers]

The pump kit just arrived, hooray for Amazon Prime!

I'll upload pics of the rings, about all I can tell is that they're black...
The old rings that were in the pump are shiny all the way around...

How do you tell if they're cast or steel?

Sadly, the large metal sealing ring is broken, looks like the box got dropped and it cracked. Would it be ok to re-use the old sealing ring with a new o-ring?

[clinebarger]

Originally Posted by jamyers

The pump kit just arrived, hooray for Amazon Prime!

I'll upload pics of the rings, about all I can tell is that they're black...
The old rings that were in the pump are shiny all the way around...

How do you tell if they're cast or steel?

Sadly, the large metal sealing ring is broken, looks like the box got dropped and it cracked. Would it be ok to re-use the old sealing ring with a new o-ring?

Your new rings look to be cast, Yellow paint marks on the edges equals "Off Shore" JUNK!

It's tough to tell cast apart from steel.....I run the Trans Go 700 PHK Pump Rings in EVERY 700/200/4L60E build! Best $8 dollars you will ever spend!

Reuse your old support, Run the shiny side toward the O-Ring.