Bracket Talk
Valve spring open pressure

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/1797091396

April 22, 2020, 09:33 AM
bill masiello
Valve spring open pressure
I was checking my valve springs for open pressure and come up with 1000 lbs open with 380 on the seat ! I was never able to do this before because my old tester only went to 600 lbs ! My question is about normal for open pressure ? The spings are PSI 1248 .
April 22, 2020, 09:47 AM
1320racer
yep, same spring I run..

spec...
Seat: 375 lbs @ 2.100″
Open: 1045 lbs @ 1.200″
April 22, 2020, 09:48 AM
TOP38
quote:
Originally posted by bill masiello:
I was checking my valve springs for open pressure and come up with 1000 lbs open with 380 on the seat ! I was never able to do this before because my old tester only went to 600 lbs ! My question is about normal for open pressure ? The spings are PSI 1248 .


Bill

Simple, If those are PAC's the spring rate is 687 lbs/inch. So if you got 380 on the seat you should get that 1000 lbs at just about .900" lift.

(0.900 x 687) + 380 = 998 lbs
April 22, 2020, 10:24 AM
bill masiello
Thanks guys ! First time I had a tester that would go high enough to check open pressure ! See you two at the track soon I hope !
April 22, 2020, 12:07 PM
1320racer
Can't come soon enough Bill
April 22, 2020, 01:01 PM
TOP38
quote:
Originally posted by bill masiello:
Thanks guys ! First time I had a tester that would go high enough to check open pressure ! See you two at the track soon I hope !


Bill

Your gonna see me at the track with a sausage pepper sub (no onions) that Ed bought me! Big Grin

And I want pictures too.
April 22, 2020, 01:09 PM
1320racer
Me too

eating a philly steak and cheese, no onions now in NYC.
April 22, 2020, 01:11 PM
TOP38
quote:
Originally posted by 1320racer:
Me too

eating a philly steak and cheese, no onions now in NYC.


Ed,

With A1 sauce too??? That's better than sausage/peppers.. I put that s h I t on everything! LOL
April 22, 2020, 01:31 PM
1320racer
Never liked A1, my father did. No sauce on this sandwich
April 22, 2020, 02:12 PM
bill masiello
Al I remember that sandwich ! Ed couldn't find you so I ate it !
April 22, 2020, 02:27 PM
1320racer
Laughing Hard
April 22, 2020, 04:46 PM
TOP38
quote:
Originally posted by bill masiello:
Al I remember that sandwich ! Ed couldn't find you so I ate it !


Bill

You had to feed the animals! Razz

BTW, How's BJ doing, gonna make it out this year with the new combo?