new best for the 4.8
04-18-2008, 09:13 AM
#1
new best for the 4.8
last time at the track:
2004 ECSB silverado 4.8L
3.42s open diff
true flow intake
stock manifolds with cats
slp loudmouth exhaust
stock wheels and tires
full weight including spare and full stereo
16.3
Wed night:
04 ecsb with 4.8L
3.42s open diff
K&N intake
longtubes, ory pipe, no cats, cutout
slp loudmouth exhaust
20's on the front, 255/50/16s on stock aluminum wheels on back
full weight including spare and full stereo
15.1 @90.16
Heres the full slip:
r/t= .034
60'=2.351
330=6.464
1/8=9.823
mph=74.11
1000=12.691
1/4=15.172
mph=90.16
Best reation time of the night:.006
Next time I will put some 16's on the front, take off a little weight, and will have my efans installed. I should be able to dip into the 14s.
2004 ECSB silverado 4.8L
3.42s open diff
true flow intake
stock manifolds with cats
slp loudmouth exhaust
stock wheels and tires
full weight including spare and full stereo
16.3
Wed night:
04 ecsb with 4.8L
3.42s open diff
K&N intake
longtubes, ory pipe, no cats, cutout
slp loudmouth exhaust
20's on the front, 255/50/16s on stock aluminum wheels on back
full weight including spare and full stereo
15.1 @90.16
Heres the full slip:
r/t= .034
60'=2.351
330=6.464
1/8=9.823
mph=74.11
1000=12.691
1/4=15.172
mph=90.16
Best reation time of the night:.006
Next time I will put some 16's on the front, take off a little weight, and will have my efans installed. I should be able to dip into the 14s.
04-18-2008, 09:45 AM
#3
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last time at the track:
2004 ECSB silverado 4.8L
3.42s open diff
true flow intake
stock manifolds with cats
slp loudmouth exhaust
stock wheels and tires
full weight including spare and full stereo
16.3
Wed night:
04 ecsb with 4.8L
3.42s open diff
K&N intake
longtubes, ory pipe, no cats, cutout
slp loudmouth exhaust
20's on the front, 255/50/16s on stock aluminum wheels on back
full weight including spare and full stereo
15.1 @90.16
Heres the full slip:
r/t= .034
60'=2.351
330=6.464
1/8=9.823
mph=74.11
1000=12.691
1/4=15.172
mph=90.16
Best reation time of the night:.006
Next time I will put some 16's on the front, take off a little weight, and will have my efans installed. I should be able to dip into the 14s.
2004 ECSB silverado 4.8L
3.42s open diff
true flow intake
stock manifolds with cats
slp loudmouth exhaust
stock wheels and tires
full weight including spare and full stereo
16.3
Wed night:
04 ecsb with 4.8L
3.42s open diff
K&N intake
longtubes, ory pipe, no cats, cutout
slp loudmouth exhaust
20's on the front, 255/50/16s on stock aluminum wheels on back
full weight including spare and full stereo
15.1 @90.16
Heres the full slip:
r/t= .034
60'=2.351
330=6.464
1/8=9.823
mph=74.11
1000=12.691
1/4=15.172
mph=90.16
Best reation time of the night:.006
Next time I will put some 16's on the front, take off a little weight, and will have my efans installed. I should be able to dip into the 14s.
04-18-2008, 09:48 AM
#4
Forgot to put in that it was a 93 octane tune last year, this year it is a dual tune 89/93. The tune was updated after the headers. Also, remember I went from a stock size tire to a 26" tall tire in the rear. That helped the gearing alot and also with traction.
Trending Topics
04-18-2008, 02:20 PM
#8
I knew the first run felt alot stronger than last year, but I was shocked I dropped so much time. Also, I have been running around on the heavy 20s since the last year. I weighed the wheels before I left:
20's with 275/45/20=81lbs
235/70/16 kumho stx on stock steels=60lbs
235/70/16 bridgestone dueler hp on stock aluminum wheels=54lbs
235/75/16 goodyear wrangler st on stock steel wheel=66lbs
255/50/16 on stock aluminum wheels=47lbs.
So switching from the 20s to the 255/50/16 knocked off alot of rotational weight.
20's with 275/45/20=81lbs
235/70/16 kumho stx on stock steels=60lbs
235/70/16 bridgestone dueler hp on stock aluminum wheels=54lbs
235/75/16 goodyear wrangler st on stock steel wheel=66lbs
255/50/16 on stock aluminum wheels=47lbs.
So switching from the 20s to the 255/50/16 knocked off alot of rotational weight.
