Contour Enthusiasts Group Archives Forums General Dyno and Drag 1/4 Mile Times -- Not so good

I fly an airplane on the east coast and power output of my 180HP air-cooled engine is significantly reduced at 6000 ft by 15% or so when compared to almost sea-level flying (can't go any lower). If you had a very hot day you could take another 15% off; like flying at 10,000 ft. This would make your SVT run like a 170HP version (which I have) or worse.

I don't think your numbers looks all that bad for that altitude and heat. Get back to earth and "fly" at a lower altitude and cool day and you should see some significant differences.

Actually reaction time is an indication of your car and how you are launching. It has no effect what so ever on your ET or MPH, but it does indicate if you are having issues leaving the line. Take my car, if my 60' is off, chances are my reaction time suffered because I was having traction problems. I left at the same time I always do, but because of traction issues, my reaction time is slower and my 60' will be slower. If you cut on average .510-.530 and all of a sudden you start cutting .600+, the track is probably going to **** and that will show up in your ET and MPH.