Supercharged NSX cuts out at 5K RPM at track.

[mystican]

Brainstorming.

We have checked:

1. Fuel pressure...looks good at 65 psi while driving. Cut out occurs only on full boost conditions.
2. AEM V1 seems to be connected fine. No issues.
3. TCS is disconnected
4. driving locally with no issues even in partial boost throttle. Again, cut out occurs in only full WOT/full boost.
5. Supercharger is SOS with built bottom end.

 

[foundry3]

Is there such a thing as IAT related fuel cut in the AEM?

 

[96cxt]

When have you last changed the fuel filter
Do you have a Walbro fuel pump or are you on a stock pump?
Make sure you don't have any lose grounds.

 

[turbolence46]

Check your MAP sensor, I had a loose connection there and it would shut it down when the vibrations would increase.

 

[Hapa88]

My stock NSX does that at the end of a 20 minute session when the engine temp gets too high (usually on hot track days ~90+ deg ambient temps).
Make sure the car isn't overheating.

 

[RYU]

your fuel pressure while "driving"... what does that mean? At idle or at WOT?

 

[Daedalus]

Under what conditions (temp, boost, A/F ratio, TP, etc) has your standalone ECU been programmed to cut fuel @ 5000 RPMs?

 

[foundry3]

Why not record a data log and reproduce the issue? It is surely an electrically based issue. The ecu will tell you why in the playback.