Hello Mr FedEx man, thats that you have. A nice shiny new camshaft. Excellent. Now Im wondering if I have gone too large on the cam. Probably not, but looking at the lobes, they are awfully square looking, lots of high lift and the lobes pretty much match the bearing journal height.
Maybe I should have got some springs to replace the comp cams 915's Ive got in there at the moment!? Im sure a lot of others will tell me I doth protest too much, its only a 220/224 afterall. We will see, its advertised duration is actually quite large at 282/286 with 57deg overlap! Hopefully the cats can do their job and clean up the tailpipe mess or things will get interesting.
On that topic Ive been reading up on "emissions tuning". This usually consists of altering the mixtures to a leaner state, rasing the engine temperature through controlling the fans, rasing the idle speed and maybe altering spark timing. This can make some difference. Anyway thats a year off so we will worry about that if/when we need to.
Did a couple of short runs to start getting the Autotune feature working. I scaled the whole table up 10% as Id already done plenty of LTFT tuning so thought it cant be too far wrong. Seems to have been maybe 5-10% out. Anyway lots of driving required. Lucky friday Im off up North so should get near on 500Mile round trip logged. Certainly a tune on the way up and room for another on the way back. Im sure timing needs revisting again. Though a small amount of KR was still noted. Seems to have lost a bit down low, but starts going crazy up high. Perhaps thats just perception. I need to do some 0-60 runs again.
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