Building a boost motor..what goes in?
02-14-2013, 10:49 PM
#25
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On mine ill probably go diamond or wiseco dished. What would u recommend milling 243s to? I'm actually on the hunt for some 243s now. I think I'm going to go 408 with mine if it get taken apart though If I'm going to build something I want it to be bauce. I joked with my cummins buddy earlier about going 408 with a twin turbo fed Maggie lol may even throw a procharger on to boot
02-15-2013, 06:32 AM
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You need to figure out what compression ratio your shooting for and choose your piston and then decide how much you want to mill your heads if any at all.
Use this to figure your comp ratio
http://www.kb-silvolite.com/calc.php?action=comp
On the piston cc use negative numbers for dome and positive numbers for dish. For every .006 you mill off a head is 1 cc. Generally most aftermarket pistons are 0 deck.
Use this to figure your comp ratio
http://www.kb-silvolite.com/calc.php?action=comp
On the piston cc use negative numbers for dome and positive numbers for dish. For every .006 you mill off a head is 1 cc. Generally most aftermarket pistons are 0 deck.
02-15-2013, 12:47 PM
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You need to figure out what compression ratio your shooting for and choose your piston and then decide how much you want to mill your heads if any at all.
Use this to figure your comp ratio
http://www.kb-silvolite.com/calc.php?action=comp
On the piston cc use negative numbers for dome and positive numbers for dish. For every .006 you mill off a head is 1 cc. Generally most aftermarket pistons are 0 deck.
Use this to figure your comp ratio
http://www.kb-silvolite.com/calc.php?action=comp
On the piston cc use negative numbers for dome and positive numbers for dish. For every .006 you mill off a head is 1 cc. Generally most aftermarket pistons are 0 deck.
02-15-2013, 02:23 PM
#29
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If it were my build, I would get ahold of "Liljohn" off Yellowbullet.com and have him spec the cam, just tell him what you have planned to do, what size motor you plan to build, what size turbo, etc, etc, etc, and he will tell you what compression ratio to run for the cam that he will spec out for your build. His cams have made some serious power over others "spec" cams for boost. You will get so many answers off here on what compression ratio that you'll need to run.
Another thing, what turbo do you have? Do you know if it'll actually make 20lbs? What fuel and fuel system are you going to run, there's alot if things you'll need to handle the amount of power 20lbs of boost will make.
Another thing, what turbo do you have? Do you know if it'll actually make 20lbs? What fuel and fuel system are you going to run, there's alot if things you'll need to handle the amount of power 20lbs of boost will make.
02-15-2013, 11:32 PM
#30
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If it were my build, I would get ahold of "Liljohn" off Yellowbullet.com and have him spec the cam, just tell him what you have planned to do, what size motor you plan to build, what size turbo, etc, etc, etc, and he will tell you what compression ratio to run for the cam that he will spec out for your build. His cams have made some serious power over others "spec" cams for boost. You will get so many answers off here on what compression ratio that you'll need to run.
Another thing, what turbo do you have? Do you know if it'll actually make 20lbs? What fuel and fuel system are you going to run, there's alot if things you'll need to handle the amount of power 20lbs of boost will make.
Another thing, what turbo do you have? Do you know if it'll actually make 20lbs? What fuel and fuel system are you going to run, there's alot if things you'll need to handle the amount of power 20lbs of boost will make.