Quote from: polskifacet on February 18, 2017, 01:14:08 AM
Logged after R&R rear turbo boost side pipe and changing waste gate hose.
0to100
3rdGear
When looking at 0-100 and both LPFP and HPFP, they look to go up and down together. A drop of 20 psi on the lpfp equals something like 400 psi on the hpfp. Seems like the whole system is having trouble keeping up vs just the HPFP after the above mentioned repairs.
Interesting... however... both links point to the 0 to 100 Datalog18.csv..
Lots of KR through the entire run.. this looks like its the LMS tune based on spark and boost? And yea.. you are still having fuel pressure issues... your IAT2s are nice and warm 110F+ and ambient is close to 57..
Mike B. (EPP Guy) did a lot of experimenting with the LPFP and HPFP... found a direct correlation between the amount of pressure provided by the LPFP and HPFP being able to keep sustained pressure... People have noted with the Boost-A-Pump module which overdrives the LPFP seeing a couple hundred PSI increase on the HPFP side...
If your LPFP can't keep up, then I would look there.. but again.. I think you replaced that already?
Here is a log of my 4+X 93 Race Tune from LMS.. ambient is a bit higher.. around 70F but my IAT's are significantly colder which should mean my fuel system is taking a harder hit than yours(I believe)... At least you will have a baseline of what it should look like...
Interestingly enough.. the V10 tune you are running is commanding the same load as the 4+X.. Only difference I can tell in the logs, is LMS has removed pretty much all the torque control from your tune...
