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13 bar sounds good to me. Audi manual says 3 bar max difference between cylinders and 8 bar is min.
Have you run the engine in? Are you using thin synthetic oil?
If you ran from rebuild using synthetic oil, the rings may not have bedded in yet.
Last edited by Tractor Dave; 11 October 2020, 14:41.
Nothelle S2 Avant
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13 bar sounds good to me. Audi manual says 3 bar max difference between cylinders and 8 bar is min.
Have you run the engine in? Are you using thin synthetic oil?
If you ran from rebuild using synthetic oil, the rings may not have bedded in yet.
Engine has been run in on mineral oil from rebuild for around 500 miles with three oil changes, then I use Comma motorsport 5w50.
Compression doesn’t sound like an issue to me.
Compression test shows 13 bars on all cylinders and then after adding 10ml of oil to cylinder bores pressure on cylinder 2 and 4 increases to 15 bar but cylinder 1,3 and 5 stays at around 13 bars. Alex do you recon this is acceptable?
Hot or cold?
Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
Seems fine to me Rob, I wouldn't be worried by your numbers. Try a hot compression test for comparison.
As I said above, given your piston/ring choice I think you're experiencing pretty average oil consumption.
Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
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