kahmann Posted July 18, 2009 Report Share Posted July 18, 2009 I made it out to AED again tonight. I called after 5PM on a whim and luckily Drew answered. He said I could cruise out anytime tonight, because he and a few other guys and girls would be up late playing with their personal cars/trucks. I needed to verify that the tune for my new blower from VMP was safe and solid, so I didn't hesitate. The first run wasn't much of a run. The tune was still de-rated with 2* of timing pulled. They wanted to check the air/fuel ratio, before adding those 2* back to the global spark parameter. To my relief, the AFR was safe above 5k, hovering between 11.5 and 12. They added the 2* with the Livewire and went to work. On the first recorded pull, Drew ran it to 6200 and backed out. He said that the engine was spinning up so quickly past 6k that he was afraid of tapping the rev limiter and cutting fuel. We checked the computer and saw a peak of 493 RWHP. We were all floored. Shawn was measuring the boost pressure with their calibrated gauge and saw a peak of 9 psi. There was discussion of whether a 2nd pull was necessary. Drew was worried again about the rev limiter. I told him to up it. He didn't want to, but he obliged after some coaxing. I asked him to back out before hitting 6500 (where my rev limiter is typically set). After looking at the 1st printout, it was obvious that the engine wasn't finished making horsepower at the 6200 he originally stopped at. So we each grabbed a beer and put the swamp cooler on high, trying to cool the blower down. We waited for nearly 20 minutes before the final pull. At this point, it was 103* (at 8PM), by the way. Hardly ideal conditions, but the chassis dyno was corrected to compensate. He ran it up to 6550 RPM this time. It recorded a peak of 508 HP @ 6550 RPM and 434 ft/lbs @ 5725 RPM! The only advice he had for me was 1) buy an intercooler asap, 2) start a savings account for a new bottom end, and 3) keep it below 6k RPM's at ALL times. I plan on taking him up on each recommendation. Anyway, we were all shocked at the #'s. He pulled files from other blown 3V's that he's tuned & dyno'ed, and none of them had broken 500 RWHP. He says the combo of exhaust, cams, blower, charge plates, and a little luck from Ford, and I've ended up with one hot 4.6. Ken Link to comment Share on other sites More sharing options...
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