Originally Posted by Chris White

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....

Originally Posted by blade7

So do 2mm thick iron dry liners in an Alusil block transfer heat to the water jacket as efficiently as Alusil cylinders ?.

Originally Posted by 333pg333

So...take the whole weekend then. Have at it.

Originally Posted by Thom

Nice... This type of coil brackets is worth a patent.

Originally Posted by Chris White

As long as the fit is good you should not have a problem with the heat transfer. 2mm does sound a bit thin for wall thickness.
Make sure you use a good sleeve retaining chemical (Loctite makes several good ones) - this will help with the heat transfer.

Originally Posted by blade7

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.