Effect of MisMarked Damper +5 degrees?
5° will not destroy an engine unless it's boosted and on the verge of detonation. It's simply not that big of a deal. I know you've already had it assembled... what did the bores look like? Ring wear is affected by a few things... The two biggest are wall finish and cleanliness when assembling. You ned to wipe the bores until the cloth comes off totally clean. Any particles left stuck in the surface features will damage the rings and negatively affect ring seating and eventual sealing. You also need to realize that the wall's surface looks different when the finish is correct. It might feel smooth if it's wrong, but it will look different. I'm attaching one so you can see the almost polished finish of a correct bore finish for a moly coated top ring. If you see the cross hatch prominently and it's not shiney, it's way too rough and the rings will seal, but not very well, and not for very long. I'm thinking if it's got that much blowby either the original finish was wrong or the walls were dirty when it was assembled. Overall the engine makes some steam. But I believe you were leaving a lot on the table and it had nothing to do with 5° of ignition timing. What was the trap speed of the 12.1 runs?
5° will not destroy an engine unless it's boosted and on the verge of detonation. It's simply not that big of a deal. I know you've already had it assembled... what did the bores look like? Ring wear is affected by a few things... The two biggest are wall finish and cleanliness when assembling. You ned to wipe the bores until the cloth comes off totally clean. Any particles left stuck in the surface features will damage the rings and negatively affect ring seating and eventual sealing. You also need to realize that the wall's surface looks different when the finish is correct. It might feel smooth if it's wrong, but it will look different. I'm attaching one so you can see the almost polished finish of a correct bore finish for a moly coated top ring. If you see the cross hatch prominently and it's not shiney, it's way too rough and the rings will seal, but not very well, and not for very long. I'm thinking if it's got that much blowby either the original finish was wrong or the walls were dirty when it was assembled. Overall the engine makes some steam. But I believe you were leaving a lot on the table and it had nothing to do with 5° of ignition timing. What was the trap speed of the 12.1 runs?
