Originally Posted by enrita
i doubt you can run map 7 on JB4 on pump gas without seeing timing drops . Would be nice to see this logs.
I saw logs on jb4 running 15.5 psi on pump full stage 3 with 5C temps and there were timing dips in 4th and 5th .
Here are some logs from a run between me (GIAC S2) and my buddy (JB4 map7, no methanol). Outside temperature was about 1 degree Celsius. Look at the ignition timing. Seems pretty much ok (first picture is the GIAC log, second is JB4). Logs are 2-3-4-5 gear. Second gear is a mess because there was no traction.