fuel rail pressure dipping question

rebuilt54

Lurker
Jan 3, 2024
14
4
0
hey! here is the run down, when i ran the stock tmap sensor on hybrids at 20 psi my fuel rail pressure was always good sitting at 1900-2200. but when i swapped out to n20 tmap currently running 20 psi working my way up to 22psi and my fuel rail pressure dips super low, into the 800s... but the LPFP is at 70-89 psi during that dip
i do have a bucket less 450 currently in the car. so.. could it be i didn't scale out something properly when switching over to n20 ? if anyone has suggestion or any pointers where to look/check.
thanks !
 

rebuilt54

Lurker
Jan 3, 2024
14
4
0
is this something i also have to take into account since on the stock tmap hitting 20psi is at 207 load and verses the n20 im at 172 load for 20 psi
??



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