| New Bests at the track today, but........ |
Subject: New Bests at the track today, but........ by dan0617 on 2009/9/20 2:04:28 ....but I think I broke the D36. Ran first pass motor only, beat my old best by .14 and 2 mph. Didn't launch as hard as I could have. Was pinging a little on the big end of the track and was a hair lean. More in it for sure. Fixed that when I got home but didn't have laptop at track to fix it and run again. Today, on motor, it was: 1.666 60ft 7.68 @ 88.42 in the 1/8th 12.08 @ 113.15 in the 1/4 Then I sprayed it. Started with timing backed down and snuck up on it over a few passes. On a 250 shot but couldn't get the bottle pressure much over 900. My big bottle needs another heater! Results: 1.551 60 ft 6.79 @ 102.44 in the 1/8th 10.55 @ 132.78 in the 1/4 After this pass I heard a clunk in the rear when I turned onto the return road, then heard the gears whining slightly when driving back the return road. Figured the diff was shot. Ran it again anyway because I was at 10 degrees retard on the spray and wanted to try 8. Last pass launch was fine but it detonated here and there just a little during the pass so I know for sure the 10 degrees of retard is what my nitrous shot likes. Same clunk and same whining on the return road. I packed it up and drove it back home (track is 1.5 hours from my house) and it made the drive home fine. After I got home I tweaked the tune and ripped it around a while, tweaked again and ripped again, rear is still holding up fine, but it clunks when turning hard and whines a little on the interstate. Not sure what is wrong in there but I'm 99% sure it is internal. I'm surprised it hasn't grenaded since I'm still beating on it. Don't think it is a U-joint, I'll check it out for sure tomorrow. Looks like it's time for a D44 and 3.45 gears! |
