Originally Posted by
JHM2K
Make that "three" of us... last week at the 1/2-mile event, I only registered a max boost of 16.5 PSI... and that was read from the MAP sensor using a DashDaq. I'm using a scaling of -14.65 (to compensate for 1 ATM pressure), but even w/o the scaling in place and simply subtracting 14.65, I'm only at ~16.5
To date, I have not seen a boost figure higher than 17PSI from the 61mm pulley. I was seeing 17.5 with the 65mm pulley, and was much faster because I wasn't dumping the extra fuel from the bigger injectors. And yes, the tune I have is built around the larger TTM injectors... Mine are Bosch EV14, not sure how those differ from the TTM injectors (I know the spray pattern is different.... maybe that's the issue?)
Rob sent me a mail yesterday regarding the new map. He will ship it tomorrow with the leak tester. Next week I will do some test runs with the new map sensor
, lets see if this solve my issue with the boost. I will also do a leak test and cross my fingers that Everything is airtight up to at least 1.8bar.
The only thing that could lead to low boost is that we have a leakage some where.
Will be back with logs and information
/Adam