Load and fuel psi targets after hpfp internals
Posted: January 18th, 2018, 1:48 am
My corksport internals will be delivered tomorrow, so I'm working on writing a tune today. My questions are :
1- is my understanding correct that my target rail psi shouldn't really change?
2- what is a good starting point for load targeting?
I'm running a stage 2 corksport tip sri, hks bpv, catless dp, race pipe, and custom 2.5" aero turbine exhaust. Engine is stock. The tune I have in it is working beautifully, maf is calibrated so max fuel trim deviation is 1.8% and desired vs actual afr is spot on. My rail pressure holds to within about 100-150 psi of commanded with a max of 1769psi commanded. my wgdc adjustments and requested load multiplier accel/deceleration settings have eliminated all boost spikes.
Just looking for a little guidance on starting loads and clarification that the spill valve still dumps at 1800 even after internals are installed. I'll take it from there, and thanks!
1- is my understanding correct that my target rail psi shouldn't really change?
2- what is a good starting point for load targeting?
I'm running a stage 2 corksport tip sri, hks bpv, catless dp, race pipe, and custom 2.5" aero turbine exhaust. Engine is stock. The tune I have in it is working beautifully, maf is calibrated so max fuel trim deviation is 1.8% and desired vs actual afr is spot on. My rail pressure holds to within about 100-150 psi of commanded with a max of 1769psi commanded. my wgdc adjustments and requested load multiplier accel/deceleration settings have eliminated all boost spikes.
Just looking for a little guidance on starting loads and clarification that the spill valve still dumps at 1800 even after internals are installed. I'll take it from there, and thanks!