TooManyFords
Action figures sold separately
As it was eluded to yesterday in a couple different threads, it is true that I have a marauder on a trailer in my driveway as I type this. I wanted to post this thread after I have all the pictures, videos and dyno graphs scanned but everyone is probably wondering just what happened!
First, Sutton did an excellent job with the dyno tune on the car. No question about it. The air/fuel was a flat 11.0 across the entire pull when completed and resulted in 471 RWHP. After the base tune was completed, we played with the electric cutouts and the nitrous to see what would happen. When the cutouts were opened up, I gained 6 hp on the top end only and lost about as much torque through 3/4s of the bottom end. But this just one example of what happens on the dyno does not necessarily represent what happens on the track. When tested with a G-Timer, the cutouts were good for a full half second reduction in ET. I have done this test at the track with the blower and got similar results. When we played with a 35 shot of nos on top of the tune, we found it ran pig rich [and why are pigs responsible all the time?] We didn't have time to customize the tune but it was clear that either more NOS or a smaller fuel jet would have corrected this without adjusting the computer. So for now, the NOS is for the bling factor until the new motor is completed.
While the car -was- running after the dyno, it was a pure dream! I can't remember the last time it was so fun accelerating up to 100+ on the toll road to catch up to Mac! Smooth as silk. We sprinted up to Great Lakes Dragaway to meet the rest of the crew and it was a great 2 hour cruise.
The bad news. It was on my first pass too. With stock tires, a new 3500 stall PI and a fresh tune on the car, I knew it was not stay glued till I got firmly ino third. With the OD off and ready, I launch. And I was right. It felt loose for quite a ways and then it planted in third and just started pulling hard! Then, all of a sudden it felt like I hit neutral and I look down and the tach was pegged! I started to let out and then BANG! Oil everywhere and parts were bouncing down the track behind me. Not much else to say, but I'm pretty sure that we'll need an autopsy on both to see what failed and how.
I'll post links to the pictures and videos later this weekend.
Now to rebuild!
John
First, Sutton did an excellent job with the dyno tune on the car. No question about it. The air/fuel was a flat 11.0 across the entire pull when completed and resulted in 471 RWHP. After the base tune was completed, we played with the electric cutouts and the nitrous to see what would happen. When the cutouts were opened up, I gained 6 hp on the top end only and lost about as much torque through 3/4s of the bottom end. But this just one example of what happens on the dyno does not necessarily represent what happens on the track. When tested with a G-Timer, the cutouts were good for a full half second reduction in ET. I have done this test at the track with the blower and got similar results. When we played with a 35 shot of nos on top of the tune, we found it ran pig rich [and why are pigs responsible all the time?] We didn't have time to customize the tune but it was clear that either more NOS or a smaller fuel jet would have corrected this without adjusting the computer. So for now, the NOS is for the bling factor until the new motor is completed.
While the car -was- running after the dyno, it was a pure dream! I can't remember the last time it was so fun accelerating up to 100+ on the toll road to catch up to Mac! Smooth as silk. We sprinted up to Great Lakes Dragaway to meet the rest of the crew and it was a great 2 hour cruise.
The bad news. It was on my first pass too. With stock tires, a new 3500 stall PI and a fresh tune on the car, I knew it was not stay glued till I got firmly ino third. With the OD off and ready, I launch. And I was right. It felt loose for quite a ways and then it planted in third and just started pulling hard! Then, all of a sudden it felt like I hit neutral and I look down and the tach was pegged! I started to let out and then BANG! Oil everywhere and parts were bouncing down the track behind me. Not much else to say, but I'm pretty sure that we'll need an autopsy on both to see what failed and how.
I'll post links to the pictures and videos later this weekend.
Now to rebuild!
John
Make it better and come back stronger than ever.:burnout:
