LS3 A6 Cam - 1/4 mile results - Wheres my MPH?
07-18-2014, 09:27 AM
#1
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LS3 A6 Cam - 1/4 mile results - Wheres my MPH? Finally made it out to the track with the cam.
Previous results with Kook 1 3/4 headers, no cats, borla, K&N. It dyno'd 396/383. Ran a 11.9 @118.5 with a 1.9 60 foot on the 285 stock tires. DA was 18XX...
Fast forward to... Adding the grand sport body with 325's and stock goodyears...
Added a blower cam 226/238 115+3 from Pat G. Retuned at same dyno, similar weather conditions to a 462/431. Not a bad improvement! Last night was the first time at the track with it since the cam and I ran a 11.88 @ 120.5 with a 1.98 60 foot. Where is all my MPH??? DA was 1750 last night.
Break down of the slip
60': 1.98
330': 5.22
1/8: 7.81
1/8 mph: 94.22
1000': 10.02
1000 mph: 112.46
1/4: 11.88
mph: 120.5
We did scan this run and the car is pulling timing on every shift - not sure why and we will re look at the tune. Didnt at the track as the tuner had HP Tuners, and my tune was done on LS1Edit with it locked... The tuner uses both programs...
Thoughts?
Previous results with Kook 1 3/4 headers, no cats, borla, K&N. It dyno'd 396/383. Ran a 11.9 @118.5 with a 1.9 60 foot on the 285 stock tires. DA was 18XX...
Fast forward to... Adding the grand sport body with 325's and stock goodyears...
Added a blower cam 226/238 115+3 from Pat G. Retuned at same dyno, similar weather conditions to a 462/431. Not a bad improvement! Last night was the first time at the track with it since the cam and I ran a 11.88 @ 120.5 with a 1.98 60 foot. Where is all my MPH??? DA was 1750 last night.
Break down of the slip
60': 1.98
330': 5.22
1/8: 7.81
1/8 mph: 94.22
1000': 10.02
1000 mph: 112.46
1/4: 11.88
mph: 120.5
We did scan this run and the car is pulling timing on every shift - not sure why and we will re look at the tune. Didnt at the track as the tuner had HP Tuners, and my tune was done on LS1Edit with it locked... The tuner uses both programs...
Thoughts?
07-18-2014, 12:09 PM
#2
Well you added weight and some pretty big tires out back. I'd assume that would negate some of the performance gain of the addition of the cam. The timing being pulled sounds like torque management to keep the trans alive?
