You just want a bore on hone 1st over to clean up the cylinders, hopefully your damage is not deep and no sleeves will be needed, but new pistons and rings will be needed either way.

 

too deep to hone the cylinder, it's quite a mess in there.

 

The engine is called a sleeved engine because the piston runs in a sleeve that comes up in the sea of coolant. There is no sleeve in the sleeve.

 

You can go 100.5 and 101.00 mm without sleeving with the piston set that ski and jwl used in there track car.


Look back at ski's track car post there are some pictures and info there.

 

I assumed that the "sleeve" was actually a separate component to the block that was pressed in. And, in this case, if the cylinder was ruined you could press the old one out and a new "sleeve" in.

I'm not assuming you press one sleeve into the existing bore or "sleeve" that is already in the block.

 

i'm pretty sure we still would have almost no compression on one cylinder. that's how deep the damage goes.

 

The cylinders in the block are an integral part of the Alusil casting. The sleeving process bores out the existing cylinders to accept a steel/iron sleeve that can be machined various diameters (requiring new pistons)

 

IIRC, the damage OS is talking about is going to require removal of the stock cylinder and replacement with a sleeve. He had some pretty badly damaged cylinders.

OS - are you going to do PCA or POC or SSCA racing with it? If so Chris can build you a 2.6L motor (see his sig!).
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If damage is that bad, then a good used block would be another option.

 

Based on experience, make sure whoever does the sleeve work has done them before and has a track record to prove it. Machining is not too complex but everything has to be done exactly right for long term success. Consider using the new Darton sleeves which on the surface seem to be a better approach than the individual press in liners typically used.

 

not sure which circuit we want this car in, may depend on budget. we also have an scca racer now (non porsche) so we may look into the pca classes and what can be done there.

#3 had a piston ring break, so the wall is scored pretty badly and there looks like either detination or the piston slapping against the cylinder wall as well.