Made half a dozen pulls today. It was an above-ground dyno, and the truck barely fit on the lift in front of it.
Here are the numbers:
1-800-GARY-FCKN-SUCKS!:thefinger:
Yes, big props (up your ass) Gary, for sending me low-impedance fuel injectors. How effin' hard can it be? Guess that's why he's best known as X-Vendor.
Low-impedance injectors will actually work to a point, then become unresponsive to PWM requests for higher duty cycles. The injector drivers go into protection mode, and refuse to go past a certain point. This explains why the truck was nosing over around 4k RPM while I was driving it.
On the plus side, John Reed (who had some cool stories about tuning 1200hp TT Gallardos at UGR, BTW!) knows exactly which injectors to set me up with. They're new 100# Bosch units that have responded exceptionally well in Vipers and Gallardos. These injectors take a different connector, so I'll be reworking the injector harness as well (much better connectors anyway).
Anyway, we saw high 6's for HP and TQ. But again, that's dying around 4k. Boost looks good though. We were seeing a solid 10psi by 4k, and peaked at 14-15psi before backing off. Now close to 700 RWHP probably sounds pretty anemic for 10 pounds of boost, but John had pulled a butt-load of timing out of the burn-in program for safety. The routine is to get the fuel tables squared away from bottom to top, then start bringing in the timing and W/M injection. Without being able to get the fuel needed, lots of timing had to be left out.
Pulled plugs 1 and 8, and they looked very nice. Good tan coloration, and no signs of detonation. Just wish I'd waiting a bit longer to pull them. I'll have a nice scar on my right index finger for awhile as a reminder of the day.
So unfortunately, we'll all have to wait for a few weeks to find out what this beast can actually make. John's going to be elsewhere on the planet tuning other rides, and won't be back until mid to late May.
