So I was out at Grudge night this past weekend to get new and better times in the cobra. This time I bought a set of Nitto 555R's 275x17 on my stock 17's.
My first run was my best run of the night. I did a brakestand in 1st gear to heat them up after backing in the waterbox and pulling forward. I launched the car at 2,000rpm with 28psi in the tires.
13.7@103mph with a 2.1 60ft.
A buddy droped my tires pressure down to 18psi on each side and another buddy ran my car the second time. He did a burn out in second and seemed to heat up the tire better and luanched the car at 3,000rpm.
13.3@104mph on a 1.9 60ft.
My second (3rd for the car) and final run was a better 60ft. but same mph and lower et. overall
13.8@103mph on a 2.0 60ft.
I was shifting at 7,000rpm and my buddy shifted at 6,500rpm.
He feels there is a drop in power above that rpm range.
Does this sound right? Did my car run average times for it's mods?
Anyway I plan on going out again and get more pratice and nail my launches better. I also plan on removing the IMRC's befor emy next trip and having the car re-tuned.
Any input or suggestions welcomed
My first run was my best run of the night. I did a brakestand in 1st gear to heat them up after backing in the waterbox and pulling forward. I launched the car at 2,000rpm with 28psi in the tires.
13.7@103mph with a 2.1 60ft.
A buddy droped my tires pressure down to 18psi on each side and another buddy ran my car the second time. He did a burn out in second and seemed to heat up the tire better and luanched the car at 3,000rpm.
13.3@104mph on a 1.9 60ft.
My second (3rd for the car) and final run was a better 60ft. but same mph and lower et. overall
13.8@103mph on a 2.0 60ft.
I was shifting at 7,000rpm and my buddy shifted at 6,500rpm.
He feels there is a drop in power above that rpm range.
Does this sound right? Did my car run average times for it's mods?
Anyway I plan on going out again and get more pratice and nail my launches better. I also plan on removing the IMRC's befor emy next trip and having the car re-tuned.
Any input or suggestions welcomed