3 years after dropping the 502 in ol' Blue, I got to the track last night. I'll give the numbers first, then all my excuses after , in case anybody wants to read further . The specs are .030 over 502, balanced, 10.6, Eddy Performer heads, teenie-weenie zz502 cam (527", 544", 224, 234), air gap, 4181 850 dp, 2400 converter, 3.31 posi.
1st pass: 12.3 @ 113
2nd pass: 12.05 @ 113
3rd pass: blew the tires away
The weather started out in the high 70s but did dip below 70 by the second run after sunset. On the first run, the car was still hot from the hour drive at 3200 rpms to get there. My ET Streets are very old, so I came out soft with 1.9 60 ft, and then I got plagued with my tach issues as it reads 800 rpms high. Well, at the track, it decided to read like 500 or 600 high and I bounced off the limiter.
Then on the second run, I bumped the timing to close to 40 and I came out harder with a 1.7 60 ft. I shifted earlier and still hit the limiter a little on both gears. I need to install a shift light!
On the third run, I jetted the rears up one step but had staging issues. The car in front of me got the green so I got in the water box to start my burnout. As I'm burning out, I was easing out the box to let the tires grab and some guys in the staging area were filming the previous car and I didn't want to chance the car jerking to the left and hitting them . Not only did I redlight, but I also blew the tires away - probably due to the incomplete burnout. Wish I had more time but we got there late and some dude blew a motor, so only got 3 runs. I wanted 11s bad .