Joined
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1,004 Posts
hi
WOW
100 psi on the dyno sheet on an engine that sees 6000rpm so,, 60--70psi would be ok and idle 20psi +.
About to assemble
Just checked my 10552st pink spring
Piston travels freely in bore
##### Fully retracted piston covers 20--30% relief hole
Details
It looks like 3/16 inch needs machining from bottom of relief piston so it opens hole up a bit more .
## Does shortening piston actually cure the problem when running .0025 mains clearance
or is it more about hole placement ???
Are people having success doing this mod . Oh yea please state what spring your using .
EG pump comes with 3 springs pink installed ....
WOW
100 psi on the dyno sheet on an engine that sees 6000rpm so,, 60--70psi would be ok and idle 20psi +.
About to assemble
Just checked my 10552st pink spring
Piston travels freely in bore
##### Fully retracted piston covers 20--30% relief hole
Details
It looks like 3/16 inch needs machining from bottom of relief piston so it opens hole up a bit more .
## Does shortening piston actually cure the problem when running .0025 mains clearance
or is it more about hole placement ???
Are people having success doing this mod . Oh yea please state what spring your using .
EG pump comes with 3 springs pink installed ....