Bruce Nunnally Posted June 29, 2022 Report Share Posted June 29, 2022 For today’s test I increased the pressure delta. One test (pictured) had no TMA at all (yay) Boost comes right up, and torque is pretty flat. Cooler day, so almost SAE1349 conditions with a small correction factor of 0.2%. The other test sample for today does show some TMA. The rate of increase may be addressed now, but I note that the new TMA happens when Cylinder airmass exceeds 1.32. More study is needed; that is below the current tune knock airmass table. I suspect this is a 3rd source of TMA however. This chart compares total cylinder airmass with boost and TMA Cyl Airmass to Boost to TMAView the full article Quote Bruce 2016 Cadillac ATS-V gray/black Follow me on: Twitter Instagram Youtube 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.
Note: Your post will require moderator approval before it will be visible.