2008 Boosted 950 hp E85 conversion LS3 Corvette lean PE pulse

[mowton]

Away from my buddies shop on vacation but have a question none the less. We have just finished up the above project car and it runs great on $2.78 corn juice :jump: One issue is a lean pulse (about .3 secs) when ever the PE kicks. Doesn't matter if stab of pedal or gentle squeeze. The normal AFR is 9.65 (1.0) and PE commands 7.6 (.78). Might the B2005 factor Stomp Compensation, help this situation? Attached is a pic of the event.

Off to an Everglades Air Boat ride today :wave:

Thanks

Ed M

13472

[joecar]

Hi Ed,

Does B4001 match the FPR (referenced or unreferenced)...? If not, then take care of this first, otherwise yes play with the transient fuel (wall wetting/evaporation) tables (boost effects the rate of evaporation and therefore those tables need to be adjusted).

[mowton]

Hi Ed,

Does B4001 match the FPR (referenced or unreferenced)...? If not, then take care of this first, otherwise yes play with the transient fuel (wall wetting/evaporation) tables (boost effects the rate of evaporation and therefore those tables need to be adjusted).

Thanks Joe, can always count on you for a reply to my questions...don't hear from many others though :nixweiss: The IFR per injector specs and match custom high flow fuel system, tune has been scaled almost 60% (120 Lb/hr injectors) and is tuned in OLSD. No MAF installed in setup. Car pulls like a freight train...very impressive :mrgreen:

Will give the transient fuel tables a shot this weekend to try and remedy this last issue.

Have a great week.

Ed M