engine builders ,need your help !!! arrgh
#1
engine builders ,need your help !!! arrgh
so i recently pulled my engine apart , ready for its rebuild ,
i then decided to keep the standard pistons and stay standard comp , but as im going bigger cams im going to need valve cut outs ,
my problem is that i dont know how to work out how deep they need to be ,
my blocks already stripped , so i dont know piston to block face height etc ,
so what measurements and where do i need to take them , to work out correctly the depth i need for the pistons ,
im going bd 14s in the head ,
as far as im aware , its standard comp , the blocks not been decked and the heads standard thickness , poss a few thou less may of had one skim ,
so can anyone help as i need to get these out to jems for machining ,
also whats the valve angle ?? in relation to the angle the cuts need to be ,
anyone please
beef
i then decided to keep the standard pistons and stay standard comp , but as im going bigger cams im going to need valve cut outs ,
my problem is that i dont know how to work out how deep they need to be ,
my blocks already stripped , so i dont know piston to block face height etc ,
so what measurements and where do i need to take them , to work out correctly the depth i need for the pistons ,
im going bd 14s in the head ,
as far as im aware , its standard comp , the blocks not been decked and the heads standard thickness , poss a few thou less may of had one skim ,
so can anyone help as i need to get these out to jems for machining ,
also whats the valve angle ?? in relation to the angle the cuts need to be ,
anyone please
beef
Last edited by -beefy-; 16-01-2009 at 05:31 PM.
#2
PassionFord Post Whore!!
iTrader: (1)
from memory amac who built my pinto put cut outs in due to the exhaust valves only been 30 thou away at full lift, think they recommended 70 thou clearence, you really need to consider a propper engineering workshop to do this for you, i have already gave you their number!
steve
steve
#5
ok
lookss like im doing a dummy dry build this sunday ,
ohh testicles ,
i aint got my 14s yet ,
would it be possible to do a dry run with my standard pistons , and then increase the extra lift into the measurement fir the lift specs of the cam
beef
lookss like im doing a dummy dry build this sunday ,
ohh testicles ,
i aint got my 14s yet ,
would it be possible to do a dry run with my standard pistons , and then increase the extra lift into the measurement fir the lift specs of the cam
beef
#7
PassionFord Post Whore!!
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from memory amac who built my pinto put cut outs in due to the exhaust valves only been 30 thou away at full lift, think they recommended 70 thou clearence, you really need to consider a propper engineering workshop to do this for you, i have already gave you their number!
steve
steve
i recon jems will know what there doing lol
its not like they cant do it they built craig rainers mk2 and allot of other realy nice stuff
beef you will need an old head gasket to do it along with the cams you have now then calculate the difference in lift on a 14 to know what you need to know but seen as john is doing them just give him a ring and ask how he wants you to do things
he may just say send them and they shal be done
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#8
i recon jems will know what there doing lol
its not like they cant do it they built craig rainers mk2 and allot of other realy nice stuff
beef you will need an old head gasket to do it along with the cams you have now then calculate the difference in lift on a 14 to know what you need to know but seen as john is doing them just give him a ring and ask how he wants you to do things
he may just say send them and they shal be done
its not like they cant do it they built craig rainers mk2 and allot of other realy nice stuff
beef you will need an old head gasket to do it along with the cams you have now then calculate the difference in lift on a 14 to know what you need to know but seen as john is doing them just give him a ring and ask how he wants you to do things
he may just say send them and they shal be done
yeah he knows what hes doing jack , but hes not psycic mate ,
he told lee that if i work out what i need out of them he will do it ,
if i sent them down there and said ohh just pocket them he'd fucking laff at me ,
i may just hold off a cpl weeks , buy the cams and then do it ,
as im sure not everyones bd 14 is the same spec ,
thansk for your input folks ,
beef
#10
Audio specialist
#11
Audio specialist
from memory amac who built my pinto put cut outs in due to the exhaust valves only been 30 thou away at full lift, think they recommended 70 thou clearence, you really need to consider a propper engineering workshop to do this for you, i have already gave you their number!
steve
steve
#12
PassionFord Post Whore!!
iTrader: (1)
lee, where does beefy say he is using jems in his original post that I answered?? I'm not a mind reader!!
I was meaning a propper machine shop as in a "competition engine builder" that can modify an engine not just someone that can recondition an existing one
The reason I suggested amac engineering to beefy is they local to him , not half a days drive away..
steve
I was meaning a propper machine shop as in a "competition engine builder" that can modify an engine not just someone that can recondition an existing one
The reason I suggested amac engineering to beefy is they local to him , not half a days drive away..
steve
Last edited by The Youth.; 17-01-2009 at 08:21 PM.
#13
Audio specialist
if you didnt see it thats cool, i thought you were saying JEMS is not a proper engine builder etc.
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