Broke into the 12s
Thread Starter
Joined: May 2007
Posts: 2,793
Likes: 16
From: under a JEGS hat
Broke into the 12s Took a ridiculous amount of runs, but I did it on the very last run of the day before they shut the track down. The track was hot (75-85+*) and had a slight uphill slope to it (California Speedway). I also started the day with a full tank of gas. From watching others run and talking with people, many bolt-on F-bodies were running high 12s to low 13s that day, and a bone stock C5 Z06 had a best of 12.85. It was also my first day at the 1/4 mile with an LS1 and got the launch pretty much dialed in for this setup.
For the run, the car had an '01 LS1/4L60E with:
Engine: MTI clear lid, un-FRA'd WS6 lower airbox, descreened MAF, gutted cats, Bassani true dual catback, MSD plug wires, NGK TR5IX spark plugs, tuned, otherwise stock down to the manifolds and AIR pump
Driveline: bone stock 4L60E, trans cooler, 3.42 factory rear end (car was a Y87 V6), OEM aluminum driveshaft, worn out/bald/cording 255/50/16 Mickey Thompson ET Streets @ 16PSI hot, 275/40/17 Nitto NT05 tires @45PSI hot on chrome Firehawk wheels up front
Suspension: disconnected front endlinks, Edelbrock coilovers w/550lb springs front, KYB AGX shocks @ 6 w/Hypercoil springs rear, UMI 3pt SFCs bolted+welded, poly/poly double-adjustable tubular PHB, LCA relocation brackets w/stock LCAs, 19mm OEM rear swaybar w/poly bushings/endlinks.
Weight reduction: carpet, rear seats, passenger seat, console, door panel plastics, kick panel plastics, sail panel plastics, a-pillar plastics, stereo, jack/spare, STB
Weight addition: cornering suspension junk, sound/heat deadening (likely +30lbs), just over 3/4 tank of gas on this run
DA: 2785
R/T: 0.65
60': 1.987
330: 5.561
1/8 ET: 8.427
1/8 MPH: 86.18
1000': 10.901
1/4 ET: 12.987
1/4 MPH: 108.27
Corrected this run would be a 12.55-12.69 ish (was expecting 12.8x). I took the car to the local 1/8th mile track with the EXACT same setup a few days later and ran consistent low 8.2x passes at 89MPH thanks to the better DA. Car dyno'd 315/333 before catback and tune.
For the run, the car had an '01 LS1/4L60E with:
Engine: MTI clear lid, un-FRA'd WS6 lower airbox, descreened MAF, gutted cats, Bassani true dual catback, MSD plug wires, NGK TR5IX spark plugs, tuned, otherwise stock down to the manifolds and AIR pump
Driveline: bone stock 4L60E, trans cooler, 3.42 factory rear end (car was a Y87 V6), OEM aluminum driveshaft, worn out/bald/cording 255/50/16 Mickey Thompson ET Streets @ 16PSI hot, 275/40/17 Nitto NT05 tires @45PSI hot on chrome Firehawk wheels up front
Suspension: disconnected front endlinks, Edelbrock coilovers w/550lb springs front, KYB AGX shocks @ 6 w/Hypercoil springs rear, UMI 3pt SFCs bolted+welded, poly/poly double-adjustable tubular PHB, LCA relocation brackets w/stock LCAs, 19mm OEM rear swaybar w/poly bushings/endlinks.
Weight reduction: carpet, rear seats, passenger seat, console, door panel plastics, kick panel plastics, sail panel plastics, a-pillar plastics, stereo, jack/spare, STB
Weight addition: cornering suspension junk, sound/heat deadening (likely +30lbs), just over 3/4 tank of gas on this run
DA: 2785
R/T: 0.65
60': 1.987
330: 5.561
1/8 ET: 8.427
1/8 MPH: 86.18
1000': 10.901
1/4 ET: 12.987
1/4 MPH: 108.27
Corrected this run would be a 12.55-12.69 ish (was expecting 12.8x). I took the car to the local 1/8th mile track with the EXACT same setup a few days later and ran consistent low 8.2x passes at 89MPH thanks to the better DA. Car dyno'd 315/333 before catback and tune.
Last edited by ZexGX; Jun 8, 2010 at 04:39 AM.
Nice run. Better weather and you will be faster. If you really want a nice easy upgrade that really pays off, get a stall. I love mine.
Also you are on f-body right. I think I remember you from there. I gave up on that site. Nice set up but not for me.
Also you are on f-body right. I think I remember you from there. I gave up on that site. Nice set up but not for me.
