stroking
02-28-2006, 03:39 AM
#1
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stroking
i was talking to someone here and menchand the term/ word "stroking" ..he clearly said that stroking was simpely making the cylinders bigger...so also bigger pistons were needed.but i always thought that stroking was mounting a smaller cylinderbus in to a cylinder for making the cylinder smaller ....it seems one and another has been done with big blok v-8 engines ...( so i thought ) ...who can tell me this ( iknow the english isn't that good but hope i made myself understandeble )
Last edited by Tur'b'onaldo; 02-28-2006 at 03:44 AM.
02-28-2006, 08:31 AM
#2
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the person was refering to "punching the block" or oversizing the bore aka boring out the cylinders for bigger pistons. stroking as you put it means the stroke of the crank, aka putting another crank with greater stroke to it into your motor.
laymans terms.
laymans terms.
03-08-2006, 10:12 PM
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Originally Posted by Red Liner
stroking doesnt mean the bore is bigger (bigger pistons) it means the travel of the cilinder is made longer, IE it draws in more air...
03-09-2006, 06:31 PM
#5
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Actually it means the offset between the crank main journal and rod journal is greater. It changes more then just the displacement, it also decreases the rod to stroke ratio (shorter rod, longer stroke), increases piston speeds, and does all sorts of funky stuff to the geometry of the bottom end... things I don't know about because I haven't read any books on engine design. 
PS, if your engine guy thinks that stroking an engine means "making the cylinders bigger", then you should find another engine guy. Stroking an engine does nothing to the actual bore of the cylinder, it only changes the crankshaft, and/or connecting rod, and/or location of wrist pin on the piston.
PS, if your engine guy thinks that stroking an engine means "making the cylinders bigger", then you should find another engine guy. Stroking an engine does nothing to the actual bore of the cylinder, it only changes the crankshaft, and/or connecting rod, and/or location of wrist pin on the piston.
