Hello all.
So I am still not satisfied with my valve-train geometry.
I have checked rand rechecked.
went through 3 sets of pushrods and recently someone said ONE WORD to me that might be my problem.
Well two words actually. Lifter Collapse.
I may be encountering lifter collapse during pushrod length checking.
This is crucial to my finding out the right pushrod length.
I took that into account and also crunched some numbers.
my pushrods MIGHT be 0.100 to 0.150 too long.
My mathematics are as follows
if stock mustangs pushrods are 6.250 in length and I have 6.350 push rods now I am 0.100 too long.
my cylinder head has been milled two times equaling out to .060 shaved off meaning I am now 0.160 too long in length.
I also have the flatter Fel Pro gaskets on there which may be 0.010 to 0.025 less deck height equating to a grand total of 0.175 too long on the push rod side.
my actual reason for this post is not solely showing off my abilities in addition =P but rather an inquiry on a possible solution.
I have been told and read that i should "shim" my rockers to the necessary amount to correct the geometry. well now to get +/- 0.175 height in shims is actually quite silly since i would be using roughly 5 or so shims.
Would it be plausible to add an ARP washer UNDER the pedestal rail lifting the rocker assembly up 0.150 and them shim once to try and correct the geometry?
In my theory it seems like a simpler and cost effective fix than buying a new set of magnum pushrods, since all I will be doing in reality is mimicing the lost deck height under the pedestal rockers.
So I am still not satisfied with my valve-train geometry.
I have checked rand rechecked.
went through 3 sets of pushrods and recently someone said ONE WORD to me that might be my problem.
Well two words actually. Lifter Collapse.
I may be encountering lifter collapse during pushrod length checking.
This is crucial to my finding out the right pushrod length.
I took that into account and also crunched some numbers.
my pushrods MIGHT be 0.100 to 0.150 too long.
My mathematics are as follows
if stock mustangs pushrods are 6.250 in length and I have 6.350 push rods now I am 0.100 too long.
my cylinder head has been milled two times equaling out to .060 shaved off meaning I am now 0.160 too long in length.
I also have the flatter Fel Pro gaskets on there which may be 0.010 to 0.025 less deck height equating to a grand total of 0.175 too long on the push rod side.
my actual reason for this post is not solely showing off my abilities in addition =P but rather an inquiry on a possible solution.
I have been told and read that i should "shim" my rockers to the necessary amount to correct the geometry. well now to get +/- 0.175 height in shims is actually quite silly since i would be using roughly 5 or so shims.
Would it be plausible to add an ARP washer UNDER the pedestal rail lifting the rocker assembly up 0.150 and them shim once to try and correct the geometry?
In my theory it seems like a simpler and cost effective fix than buying a new set of magnum pushrods, since all I will be doing in reality is mimicing the lost deck height under the pedestal rockers.