one peice engine
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themadscientist
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one peice engine
Has anybody else wondered why in this age of exotic alloys and computer-controlled CNC milling nobody has made a one peice engine? By one piece I mean the block and head are machined out of a single block of alloy. The combustion chamber could be milled through the bore, oil and water passages shot at intersecting angles and plugged at the ends, valves pistons and rods can be dropped down through the boreas well and then the mains can be milled as one peice and bolted down to the bottom of the engine over the protruding rods and then the crank installed as normal. The head ports could be milled like normal as well as the cam supports. The rest would be like a regular engine. No more head gasket or head to block sealing issues.
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Stoneage_Turbo
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"Has anybody else wondered why in this age of exotic alloys and computer-controlled CNC milling nobody has made a one peice engine?"
they have , its called a offenhouser 4cyl , ran at indy for many years sucessuflly , i think from the late 50s all the way thru 79 , head and block was one peice , crankcase came out to service engine componets , it was oo stout that in 79 i think they were running around 55pi of boost and ran well over 200 mph down the backstright in qualifying trim :ylsuper
also nicknamed "the offy"
they have , its called a offenhouser 4cyl , ran at indy for many years sucessuflly , i think from the late 50s all the way thru 79 , head and block was one peice , crankcase came out to service engine componets , it was oo stout that in 79 i think they were running around 55pi of boost and ran well over 200 mph down the backstright in qualifying trim :ylsuper
also nicknamed "the offy"
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Mayhem_J30
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themadscientist
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Stoneage_Turbo
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not sure , maybe the automakers are enjoying all the cars coming into dealers for headgasket jobs
the offy was awesome , dohc 4 valve 4 cyl , amazing power when boosted , but like the buick v6 of the 80s at indy it also was a reliblity problem for 500 mile races , i forget just why tho , i was born 3 years after the offy era , but i read every tidbit i can find on the awesome critter
indy is home to many advances in car design , the rearview mirror came from there along with many other advances , also try to read up ont he turine cars from andy granntelli , they were nicknamed the "vaccum cleaner" for the sound they made as they went by , would have won if it wasnt for a 50 cent bearing that failed , it was many laps ahead of the second place car wen it went out with only a few laps tillt he end of the race , year later it was banned becuase f how fast it was
if it wasnt for a guy named chevrolet winning a early 500 we wouldnt have the chevrolet atuomoble , of coarse mr chevy intended it to be a luxury car not unlike rolls royce , wile away on vaction in europe he assisnt redisgned the car to be cheap as a ford , makeing mr chevy very unhappy and turning the chvey into a bastard child for all time , mr chevy tried many times in court to get his name off the car but to no avail
the offy was awesome , dohc 4 valve 4 cyl , amazing power when boosted , but like the buick v6 of the 80s at indy it also was a reliblity problem for 500 mile races , i forget just why tho , i was born 3 years after the offy era , but i read every tidbit i can find on the awesome critter
indy is home to many advances in car design , the rearview mirror came from there along with many other advances , also try to read up ont he turine cars from andy granntelli , they were nicknamed the "vaccum cleaner" for the sound they made as they went by , would have won if it wasnt for a 50 cent bearing that failed , it was many laps ahead of the second place car wen it went out with only a few laps tillt he end of the race , year later it was banned becuase f how fast it was
if it wasnt for a guy named chevrolet winning a early 500 we wouldnt have the chevrolet atuomoble , of coarse mr chevy intended it to be a luxury car not unlike rolls royce , wile away on vaction in europe he assisnt redisgned the car to be cheap as a ford , makeing mr chevy very unhappy and turning the chvey into a bastard child for all time , mr chevy tried many times in court to get his name off the car but to no avail
Surely cost is the driving factor. Just because it's possible doesn't mean it's cheap! The price/lb increases as the lump of metal gets larger. And increased complexity will drive mfg costs up, regardless of how big a run you have. But the higher costs only offer small payoffs in weight savings and decreased risk.