banaro Posted April 19, 2018 Report Share Posted April 19, 2018 HI Gents, Just changed to a 90mm single blade TB due to restrictions with the previous 4 barrell progressiveTB, 90mm is the correct size for this supercharged SBC at full throttle, I am seeing significant AFR lean spikes not present before, I assume this is due to the more dramatic opening with low air speed from idle, I have played extensively with accelerator enrichment settings, amount, duration etc, but ended up back were I started, increasing enrichment only made the out of bounds rich AFR rebound get larger while having no impact on the lean spikes at all, can someone have a look at the attached LOG file and offer some advice. Look at the underload 100% tromp at the end of the recording, use Lambda 2, as Lamba 1 has a fault, ignore fuel pressure as I had it re-purposed at the time. Thanks 170418-5.llg Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.