Question About Engine Housing Design - Why the alternating metal types?
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From: Houston
Question About Engine Housing Design - Why the alternating metal types?
Just curious why the engine housing uses alternating aluminum/iron plates, why not just one or the other? doesn't different metal types create issues with expansion?
Whats the theory behind this?
Whats the theory behind this?
multipersonality disorder
Joined: Feb 2002
Posts: 5,656
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From: so. cal
the aluminum couldn't be used for the side housings because of wear issues--racing beat seems to have that figured out now.
too much effort and too much money to use aluminum side housings with iron wear surfaces...
it's easy to sleeve the rotor housings, so the aluminum was used there for weight savings, along with thermal transfer effectiveness.
strontium? or whatever they used was mixed with the aluminum to get the expansion coefficient closer to the iron---didn't work too well.
more or less; cost, time, cost and cost are factored in.
too much effort and too much money to use aluminum side housings with iron wear surfaces...
it's easy to sleeve the rotor housings, so the aluminum was used there for weight savings, along with thermal transfer effectiveness.
strontium? or whatever they used was mixed with the aluminum to get the expansion coefficient closer to the iron---didn't work too well.
more or less; cost, time, cost and cost are factored in.
multipersonality disorder
Joined: Feb 2002
Posts: 5,656
Likes: 0
From: so. cal
the aluminum couldn't be used for the side housings because of wear issues--racing beat seems to have that figured out now.
too much effort and too much money to use aluminum side housings with iron wear surfaces...
it's easy to sleeve the rotor housings, so the aluminum was used there for weight savings, along with thermal transfer effectiveness.
strontium? or whatever they used was mixed with the aluminum to get the expansion coefficient closer to the iron---didn't work too well.
more or less; cost, time, cost, durability, and cost are factored in.
too much effort and too much money to use aluminum side housings with iron wear surfaces...
it's easy to sleeve the rotor housings, so the aluminum was used there for weight savings, along with thermal transfer effectiveness.
strontium? or whatever they used was mixed with the aluminum to get the expansion coefficient closer to the iron---didn't work too well.
more or less; cost, time, cost, durability, and cost are factored in.
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