Sleeve to 2.8l?
#16
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You would have to very good at FEA to handle this one!
You start with the ratio of parent material (Alusil) to Sleeve material (Steel) but then you get into the root of the alusil cylinders (floor of the block) and its ability to stabilize the cylinder...follow that up with issues regarding differential expansion rates, sleeve to parent material boundaries (for both heat transfer and long term stability) and then you can try and start to model the alusil casting irregularities (porosity and thickness variations - keep in mind that the stock cylinders actually taper and get wider towards the bottom due to casting release issues)....ummm, yeah, its a little complex....![Big Grin](https://rennlist.com/forums/images/smilies/biggrin.gif)
You start with the ratio of parent material (Alusil) to Sleeve material (Steel) but then you get into the root of the alusil cylinders (floor of the block) and its ability to stabilize the cylinder...follow that up with issues regarding differential expansion rates, sleeve to parent material boundaries (for both heat transfer and long term stability) and then you can try and start to model the alusil casting irregularities (porosity and thickness variations - keep in mind that the stock cylinders actually taper and get wider towards the bottom due to casting release issues)....ummm, yeah, its a little complex....
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![Big Grin](https://rennlist.com/forums/images/smilies/biggrin.gif)
#17
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Make sure you use a good sleeve retaining chemical (Loctite makes several good ones) - this will help with the heat transfer.
#18
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OK, I'll start making a paper mache model for some destructive testing....
BTW - here is something from last weekend's "work".....I'll post some more details on a new thread in a little bit - see if you can figure this one out!!!
BTW - here is something from last weekend's "work".....I'll post some more details on a new thread in a little bit - see if you can figure this one out!!!
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#22
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Thanks for the advice, what do you recommend for dry liner wall thickness ?. I was wondering about a retaining compound, I think some installers rely on the interference fit only.
#23
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While I used to build dry sleeve engines I was never happy with the alusil/steel thickness compromise. If I am sleeving an engine now I use the Darton MID wet sleeves.