Another 2015 mustang 5.0 limit - insufficient fuel flow

[caniggia]

Any ideas? Not leaning, but closing throttle in roush tvs kit at 4700 rpm, but it's not lean or so.

[Higgs Boson]

I don't think closing the throttle means it has insufficient fuel flow, it means your torque model is wrong.

[caniggia]

It says exactly this limit in log and at same time is closing throttle.

[caniggia]

Look at 4th gear pull on the end.

25. notmal plus wot, smal hestitation on fleer on end.hpl

[Eric@HPTuners]

Added a new DMR to all the 15 Mustang GT and GT350 definitions. Fuel Flow Rate. Scan it and report back your findings.

[caniggia]

4.1 lb/min is fuel flow when limits kicks, in tune table is extended to 10.
Send you data to support.

[Higgs Boson]

Added a new DMR to all the 15 Mustang GT and GT350 definitions. Fuel Flow Rate. Scan it and report back your findings.

nice, can you do pulse width and/or idc?

[curt@injected]

Just went through this yesterday w/ Eric. Car was out of injectors even though it did not look like it.


What is fuel pressure, what injector and how much power is it making?

[caniggia]

This is 670 crank hp roush kit with gt500 47 lb injectors, stock fuel pressure.
With timing i run now and from airflow i belive it makes around 600-620 at crank at 5000 rpm. Its new engine so i dont go higher for now.

Every should not be maxed, but maybe EU calibration has dc limit set less, this is Eric checking now after he wrote me about your issue.

Btw, have you seen at your power any tipin detination control limit or anticlunk limit when you let throttle off and on?
Im curious if that may be also problem of euro calibration.

[Witt]

Btw, have you seen at your power any tipin detination control limit or anticlunk limit when you let throttle off and on?
Im curious if that may be also problem of euro calibration.

I'm having anti-clunk issues preventing WOT from lower rpm on a 2015 with a centri. Causes surging in lower gears and random loss of power in higher gears at freeway speeds. It's a US spec car.

[metroplex]

Did this ever get resolved?

[caniggia]

for anticlunk i reflashed car to stock with IDS, rewritten tune and it went away. Fuel limit seems to gone also in this car.

[metroplex]

What did you do for the fuel flow?

[caniggia]

Nothing in this car, i have not changed injectors etc, it started to work...