Ls1 rebuild ?
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Joined: Oct 2016
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Ls1 rebuild ? hello everyone im new here i own a 2002 Trans am 5.7 manual 6speed and i am getting my engine rebuilt and machined as well as the heads and with some minor upgrades like a cam with 212/218 lsa of 114 lift is .522/.529 , new valve train components and the guy had to bore out my cylinders 5 over and he also said hes done a few things to bump up the compression a bit and im also gunna be installing bbk lt headers with the ory . now my question is am i gonna be throwing any ses/cel codes when i get everything back up and running . any tips for a newly rebuilt motor and break in will be greatly appreciated .and also will i need to absolutely have to get a tune done for it to run and idle properly ? i do trust this guy that is rebuilding my engine he is well know throughout louisiana and mississippi .
That is a small cam on a 114 LSA. Manuals have a high enough idle speed that it will run OK on the stock tune. The MAF will see the extra air and adjust the fueling accordingly. You might get some codes with the headers especially if they are non emissions type that eliminate the EGR, AIR, Cats and rear O2s. You should eventually get it tuned. Or at least a mail order tune to turn off the codes and optimize the cam install.
