Patriot gold with trex question..
Originally Posted by Geoff
135@1.800"
Open
350@1.150"
Coil Bind
.710" lift/ 1.090"
1.090" + .050"= 1.140"
1.140" + .609"= 1.749"
If you start off with 1.800" of install height with no shims you will need .051". You will probably wind up with slightly more (say .060") because you will probably never see the full lift at the valve anyways.
Open
350@1.150"
Coil Bind
.710" lift/ 1.090"
1.090" + .050"= 1.140"
1.140" + .609"= 1.749"
If you start off with 1.800" of install height with no shims you will need .051". You will probably wind up with slightly more (say .060") because you will probably never see the full lift at the valve anyways.
Install height = 1.770" (This is what I measured on my AS heads with no shims)
Bind Height = 1.045"
1.770 - 1.045 = 0.725"
1.045 + .050 = 1.095"
At .614 lift + 1.095 = 1.709"
1.770 - 1.709 = .061" SHIM
or
1.770 - 1.045 = .725
.725 - .614 = .111 - .050 = .061 SHIM
So looks like my new install height would be 1.709 using a .061 shim with .050 cushion before coil bind right?
Dan
Originally Posted by NX_CaGEdApE00
thanks for clarifying.. great help......
how do i contact u personally in the future geoff..
how do i contact u personally in the future geoff..
Originally Posted by DanZ28
Ok, let me see if I understand this myself. I have crane 832's and using your suggestion I come up with this:
Install height = 1.770" (This is what I measured on my AS heads with no shims)
Bind Height = 1.045"
1.770 - 1.045 = 0.725"
1.045 + .050 = 1.095"
At .614 lift + 1.095 = 1.709"
1.770 - 1.709 = .061" SHIM
or
1.770 - 1.045 = .725
.725 - .614 = .111 - .050 = .061 SHIM
So looks like my new install height would be 1.709 using a .061 shim with .050 cushion before coil bind right?
Dan
Install height = 1.770" (This is what I measured on my AS heads with no shims)
Bind Height = 1.045"
1.770 - 1.045 = 0.725"
1.045 + .050 = 1.095"
At .614 lift + 1.095 = 1.709"
1.770 - 1.709 = .061" SHIM
or
1.770 - 1.045 = .725
.725 - .614 = .111 - .050 = .061 SHIM
So looks like my new install height would be 1.709 using a .061 shim with .050 cushion before coil bind right?
Dan
That looks right to me. Just remember to measure with the locator you are running on the spring for your initial install height. In other words use the retainer and locator you plan to run on the head and shim off of that measurement.
