azthrei
Jul 18 2004, 06:45 AM
Ok, here what's going on. I got 3 runs in, all around 15 even, nothing under 15 though. My RT's weren't bad, it was a .5 light and my last reaction time was best at .191, but all my 60's were around 2.3-2.4. The track altitude may be a part to blame, and it had rained earlier that day, but the track was totally dry, just a little bit humid, and the temp was around 75. The track altitude is 4400 feet, so my time would be quite a bit lower at sea level. But i'm not sure what is exactly wrong with my car. I did have to let off the gas a little bit to shift cause of transmission problems, but nothing else went wrong. My DR's caught extremely well when I warmed them up. I had a tune-up in the last 2 months with pulgs and wires all changed. My motor does have 145k original miles on it, so i'm thinking something is up inside the motor itself. I do need to get a new clutch and flywheel soon, but that's like 600 bucks down the road.
Anyone got any ideas of what's going on with my car, it's acting up when I try to race it like this, and I can't get into the 13's like i should be.
FastLT1
Jul 18 2004, 01:56 PM
NHRA says at 4400 ft mulitply your ET by .9458 and your mph by 1.0577 That should knock about a second off. Don't feel bad the last time I ran a 15.1 was the best but I'm only at 1500 ft. That corrects to around 14.9.
Tyler
Jul 18 2004, 04:15 PM
If you think about it,thats not real bad. Remember,reaction time has nothing to do with the actual 1/4 times. Thats just how long it takes before you start the timer. Also,if you can knock that 60' time down to about a 2.0 you will drop your et by around .5 sec. Figure in a humid day at 4400 feet and I dont see it as being to bad really. And if the car is not shifting just right that can cause you to loose a tiny bit to.
Make sure the throttle opens all the way.Change all your oils to synthetic and dont over fill the motor. Give your car a valve adjustement (@ 144,000 it needs it). Raise the front tire pressure to 40 psi and lower the rear to about 20. Most of all,practice those launches! It needs to spin a bit off the line to keep the car from bogging. With stock gears I launched at 4000+ rpm on DR's!
azthrei
Jul 18 2004, 10:45 PM
Ok, here are the 3 run times that I got on the slips, wasn't around them last night when I posted. Oh, yeah, my front tires were around 32-35 psi and the backs were around 20 psi on each run.
1st Run
R/T - .802
60' - 2.337
330 - 6.434
1/8 - 9.774
MPH - 73.92
1000 - 12.627
1/4 - 15.039
MPH - 93.73
2nd Run
R/T - .365
60' - 2.434
330 - 6.682
1/8 - 10.082
MPH - 72.66
1000 - 12.995
1/4 - 15.461
MPH - 91.65
3rd Run
R/T - .191
60' - 2.428
330 - 6.610
1/8 - 9.971
MPH - 73.49
1000 - 12.852
1/4 - 15.292
MPH - 92.65
Pretty bad looking at what mods i've done. And what else do you guys think I should do, and where to get it done?
Oh, and before Tyler, when I was asking what was wrong with my transmission, it was the same problems as yours, the forks or synchrodes are off and need to be replaced. If I did that then i'd probably have no problem with shifting while at WAT.
FastLT1
Jul 19 2004, 12:06 AM
Those time look like mine. But most of my 60ft times was 2.6. I'd thought your 60ft times would be better with drag radials. I believe your 60ft time is alot of your problem.
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