Without seeing the sig (the mobile version of this site doesn't show them on my phone), the best I can guess is the times varied over some years, something like 5-6 years.
The 12.56 was way back before the car was lowered, painted, exhaust changed, however on a dyno it made more power (272/316 at its most). I remember the mph on that pass was low, not certain any particular reason. The slicks were aired down to 10-11 psi, so that might have played a roll.
The 12.53 on 17" tires the car was in the 107-108 range all day. It is usually in the 106-107 mph range.
I remember the day where it mph consistently over 108, and if my sig notes a 111 mph, it was that day and I honestly think that one pass was a fluke or something with the tracks timing was off. The car was trapping 108 and even 109 that day, but on the one pass it said 111. I probably have it listed in the sig but would never call my car a 111 mph car. I wouldn't even call it a 108 mph car. It's mainly in the 106-107 area.
I think it boils down to 3 different tracks I run at, much different weather, and not sure what else!
The 12.56 was way back before the car was lowered, painted, exhaust changed, however on a dyno it made more power (272/316 at its most). I remember the mph on that pass was low, not certain any particular reason. The slicks were aired down to 10-11 psi, so that might have played a roll.
The 12.53 on 17" tires the car was in the 107-108 range all day. It is usually in the 106-107 mph range.
I remember the day where it mph consistently over 108, and if my sig notes a 111 mph, it was that day and I honestly think that one pass was a fluke or something with the tracks timing was off. The car was trapping 108 and even 109 that day, but on the one pass it said 111. I probably have it listed in the sig but would never call my car a 111 mph car. I wouldn't even call it a 108 mph car. It's mainly in the 106-107 area.
I think it boils down to 3 different tracks I run at, much different weather, and not sure what else!