Had been tuning my van all week, thought i had it but didnt' realize putting a ported cover on would change the tune in a big way. I basically put the cover on and drove to the track. 10 litres of gas in the tank, 94 octane, 2 gallons of C16 went in, 50/50 alky injection working.
It was busy, they maxed out, 225 cars,
, stands were packed, missed my first call by mere minutes due to being stuck in tech.
Finally get the call, line up, running like crap, launch, CEL comes on, knock retard the whole run, 25 psi, 13.95@95,
Get back, play with the knock sensor thresholds, my pistons are setting it off, wait what seems like hours, get another crack, same outcome, knock retard and 13.95@95 again.
F*ck it, unplug it, wait for aprox 1.5 hours, go back out, launches like crap but AF ok up top, 25 psi, 11.3:1, 13.4@99 mph, finally, making progress.
Figured out I was now too rich as the turbo spooled and too lean up top so I put the map back to how it was before, leaned up around 3500 and richened it up big time at 5800 and up, also put the timing curves back to my 50 trim spec and took some out at 25+ psi.
Now is like 9:45, people are leaving in droves, get called, line up, comes out of the hole like a bat out of hell, 27/28 psi, 11.2:1 AF, perfect out of the hole, hits 2nd, POP, Boostgeek said flames came shooting out of the tailpipe,
still pulling, halfway thru 2nd, it leans out, so I back off, hit 3rd, still backing off-RESULT, 12.9@100 mph.
So I add even more fuel up top, feeling I have mid 12's easily in the bag, get called up 20 minutes later, starts to f*cking rain,
So more learning tonight, the ported cover changed my AF and timing curves big time, it spools earlier, I would say aprox 500 rpm, as now I can build boost at 3000 rpm, I can easily do a burnout as before, the converter was too tight for the 3500+ spool.
Due to the amount of spectators this time, my van always had a crowd around it, gave out a few of my business card's, so maybe I'll get some business out of it, a few moms wanted one,
Oh and
NO MORE SURGE!!!!!!!!!