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Originally Posted by SC2150
SSE.....I think I know this guy!!! Pretty much sums it all up and I cant disagree with anything he states. This guy knows what he is doing, great source of info.
I'm 55 and have been building race and performance engines for 38 years, and we have multiple Divisonal, National, and World Chapmionships in both NHRA & IHRA in several classes and every builder we know uses the same procedures this guy does. On our 1000 hp plus alky drag motors, we use Joe Gibbs break-in oil at first fire. We get it to operating temp, retorque heads and check valve lash, then do a standard burnout and 1/2 track run to mainly check for leaks or saftey issues. Come back to the pits, check valve lash one more time to make sure nothing is "going away", do a full out run and check everything one more time, do several runs (each one of the first 3-4 it gets faster). After 5 runs we drain the breakin oil and put in a good synthetic and race. Our motors go 600-1000 runs a season and other than oil changes and regular valve lash, we swap valve springs and lifters at 1/2 season just for peace of mind. We do a complete freshen every season end and that says alot for the proper break-in.
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I hear you, but...
On behalf of those of us who may not have done a hard break in...or who may not do one in the future...
Are we doomed?? lol Is it just the luck of the draw as far as rings etc., whether or not the engine will be good to go or not??
Don't mean to have you repeat all of the great posts above....I gotta go catch can! I'm sold! (and a little worried)! lll I gotsta know for sure! lol
pm some info please