TH400 line pressure

[norbs]

I was just wondering how many shims i need under the pressure spring in the front pump to get the line pressure down to about 160. I see 2 shims in there and a light blue looking spring? SHould i take the shims out? The valvebody is a transbrake rev pattern for now, with full line pressure i guess.

 

[jakeshoe]

Switch pitch huh?
Don't you hate it when you lose bolts?

Take all the shims out.

 

[Alky V6]

That looks like a stock PR spring. You sure you want to use no shim?

 

[norbs]

Well that is what im trying to get some info on. WHat is the usual factory line pressure under full load and no load?

 

[Alky V6]

Adding an extra shim to the stock spring and stock shim (1) is known as the poor mans shift kit. Using the stock spring with one shim will be a stock setup. I really don't think you want to go lower than that.

 

[Alky V6]

One more note. All the bolts on your pump should be at least grade 5 bolts. Identified by three line markers. Torque is 20 lbs ft.