Well it was certainly faster we got 4 runs, 2 shakedown, one better and a final expensive pass.
12.43@114 On the gt2871.64 thats pretty good but it still was not a clean pass! The 60ft of 1.80 with a best of 1.78 were nice. This was still on my street ecu with conservative 1st and 2nd limiters. I had an ecu to try tuned like we run in the drag car with much more in second but that box was untried. I better explain that part.
The problem came on the 4th pass going from 3rd to 4th at about 100-110mph indicated 2nd was selected. The factory rear mount broke. Yep a mechanical overrev, aka money $hift. No compression, Hoped timing slipped, no luck there. Pulled 1-3 and they were all good, 4 not so much. So that was the end. Pics are in the gallery. One #4 inlet valve failed and resides in 2 AND 3 now.
Now for the rebuild I have some options. This motor was just a drop in pistons at 6k miles and Enem cams. Rest was bolt on. I really like the power curve of the shorter stroke 2.0 but then it is “not a Viggen” or something like that. Most likely it will get a 2.3 same as before with Gt30 turned down a bit. ~425hp or so
At least the chassis mods worked well. These are some great 60ft times and with a little more driving he could have made a pass with perfect shifts. I was a little worried about the front springs being too stiff. I didn’t even soften the rebound on the fronts from full hard! There was no wheel hop at all. No wheel spin at all either. We could have taken lots more torque in second. We were still palying with shift points short shifting third and second just a little. Going through the lights in 4th. With the Gt30 and a bit more power we could have made a nicer showing but this will do for now.
This weekend will be taking the drag car to the Import Faceoff in KC,MO so will report that when we get back.
Timeslips and Carnage in the Gallery