I took the 97GT to the track for the first time in 3 years. The DA wasn't great at 2400 to 2100 feet, but I every pass I made was faster than my previous bests.
Since the last time I was at the track, I added the PI intake, PI cams, and did some tuning on the tweecer. I also threw the nittos from the 88 on, so I wouldn't tear up the street tires. Still running the stock 3.27 gears. I could run consistent 14.4's at 94mph before and got a 14.2 with some cold fall air one year. This time out, I was shifting around 5600-5700rpm. Sound about right for PI parts on a NPI?
First pass I launched around 3000rpm. It dead hooked and I shifted to 4th just before the finish, killing the trap speed.
.301 RT
2.074 60'
9.103 @ 77.63
14.119 @ 97.68
2nd pass, I launched more aggressively and got some initial tire spin. I held onto 3rd gear and crossed the strips at around 5700-5800rpm. I held 3rd the rest of the night instead of trying 4th.
.204 RT
2.130 60'
9.127 @ 77.55
14.136 @ 98.47
3rd pass, I hot lapped the car. It was only 12 min later. I slipped the clutch to much on the launch (around 4500rpm) and got another 2.074 60'.
.084 RT (getting used to the clutch again now)
2.074 60'
9.052 @ 77.51
14.063 @ 98.43 Getting close to a 13.XX. After slipping the clutch hard on this pass, I could smell the clutch a bit, so I popped the hood and let it cool while I watched.
4th pass, I bumped the timing another 1.5* across the board to see if it would gain anything (now at 6.5* above factory). I think it spun a little on the initial launch.
.117 RT
2.099 60'
9.098 @ 77.54
14.107 @ 98.55
Last pass, I was distracted because my friend setup a GoPro on the passenger window and I was next to a 10.4 sec car. I tried my best to get a 13.XX, but spun on the initial launch.
-.026 (red light)
2.137 60'
9.039 @ 78.23
14.014 @ 99.08
Video: bhuff97GT.mp4 video by bhuff66062 - Photobucket Sorry, no sound because the GoPro had a glitch. If you could have heard, it barked every gear.
Soooo close to the 13.XX. I got in line to run again, but someone oiled the track and I ran out of time for the night. If I could have stayed, I am certain I would get the 13 second pass I was looking for. It was finally cooling down and you can see I gained .5mph on the last pass.
The GT was surprisingly consistent. In my 5 passes, spinning and not spinning, I still only varied .122 second from the fastest to the slowest pass. All in all, it was good fun, but with the PI cams, intake and some tuning I only gained .4 seconds and 4mph? I guess I was hoping for more.
Some of you know, I've been against gears for a long time. On street tires, I really think the 3.27s work well, as I went 2.1s reasonably easily. On the nittos, I can tell it is power limited to 2.0 60' times. I'd be nice to run out the quarter in 4th gear and take advantage of the 1:1 efficiency of 4th.
Since the last time I was at the track, I added the PI intake, PI cams, and did some tuning on the tweecer. I also threw the nittos from the 88 on, so I wouldn't tear up the street tires. Still running the stock 3.27 gears. I could run consistent 14.4's at 94mph before and got a 14.2 with some cold fall air one year. This time out, I was shifting around 5600-5700rpm. Sound about right for PI parts on a NPI?
First pass I launched around 3000rpm. It dead hooked and I shifted to 4th just before the finish, killing the trap speed.
.301 RT
2.074 60'
9.103 @ 77.63
14.119 @ 97.68
2nd pass, I launched more aggressively and got some initial tire spin. I held onto 3rd gear and crossed the strips at around 5700-5800rpm. I held 3rd the rest of the night instead of trying 4th.
.204 RT
2.130 60'
9.127 @ 77.55
14.136 @ 98.47
3rd pass, I hot lapped the car. It was only 12 min later. I slipped the clutch to much on the launch (around 4500rpm) and got another 2.074 60'.
.084 RT (getting used to the clutch again now)
2.074 60'
9.052 @ 77.51
14.063 @ 98.43 Getting close to a 13.XX. After slipping the clutch hard on this pass, I could smell the clutch a bit, so I popped the hood and let it cool while I watched.
4th pass, I bumped the timing another 1.5* across the board to see if it would gain anything (now at 6.5* above factory). I think it spun a little on the initial launch.
.117 RT
2.099 60'
9.098 @ 77.54
14.107 @ 98.55
Last pass, I was distracted because my friend setup a GoPro on the passenger window and I was next to a 10.4 sec car. I tried my best to get a 13.XX, but spun on the initial launch.
-.026 (red light)
2.137 60'
9.039 @ 78.23
14.014 @ 99.08
Video: bhuff97GT.mp4 video by bhuff66062 - Photobucket Sorry, no sound because the GoPro had a glitch. If you could have heard, it barked every gear.
Soooo close to the 13.XX. I got in line to run again, but someone oiled the track and I ran out of time for the night. If I could have stayed, I am certain I would get the 13 second pass I was looking for. It was finally cooling down and you can see I gained .5mph on the last pass.
The GT was surprisingly consistent. In my 5 passes, spinning and not spinning, I still only varied .122 second from the fastest to the slowest pass. All in all, it was good fun, but with the PI cams, intake and some tuning I only gained .4 seconds and 4mph? I guess I was hoping for more.
Some of you know, I've been against gears for a long time. On street tires, I really think the 3.27s work well, as I went 2.1s reasonably easily. On the nittos, I can tell it is power limited to 2.0 60' times. I'd be nice to run out the quarter in 4th gear and take advantage of the 1:1 efficiency of 4th.