WTF is going on here my 60ft times get better as night goes on and times just get s**t. i didn't miss any gears and the clutch only slipped a little bit the most it slipped was on my 2nd run which was the second fastest. i read the slips and it doesnt add up i got mph to run 15.3. the 60ft time to do 14.80's but im getting sixteens and its REALLY PISSING ME OFF. wtf is going on here

I think your car is probably very tired or has some other issue that is causing it to be down on power.
You haven't said what car it is either.

It all seems to add up to me, nothing stands out.
Don't think you'll get a 15.3 with only 84-85mph in an E-Series personally.

terminal speed is consistent with all 4 runs, so im guessing a 15.8 might be possible with how it is now?

el manual poverty pack with big heavy cow catcher(bullbar) on the front. didnt miss any gears and i would have thought if clutch was slipping it would have done it most on the start. motors done alot of k's 300+ its got pacies 4480 extractors 2 1/2 in redback exhaust. it got s**t 3.08 diff gears .what i dont get is normally when your 60ft gets quicker your overall time does to but its done the opposite.

I'm guessing by the times the first 3 were consecutive runs?
Probably going slower because of heatsoak, you can see the MPH drop.
Your last run you ran 85mph again, just stuffed up the launch with a 2.5 60'

yeah they were consecutive runs i never thought of heat soak we did let it cool for a while. i just cant believe how my 60ft get better but times got slower. i was surprised with the last run it felt heaps quicker but was actually a s**t time. gunna get rid of me cow catcher and get some 3.45:1's ill just get a single spinner cause i got an lsd centre sitting on work bench then take it back to run a 15

Well bullbar is gone umm, well what can i say, pulled out spare tire sub woofer jacks and ran a 16.4 same sorta mph. been a bit lazy havent got 3.45s lol, wasnt too impressed i would have hoped for at least an 16.2 cause then i woulda been a bit closer to running a 15. maybe i should convince my gf to try it lol, a mate let a girl who happened to be a friend, race his vr commo and the best he could do was 16.2 and then she went 15.9 funny as at the time. maybe i should go on a diet to reduce overall weight of the car or just up the power.

motor might be tired after all those km's, maybe headgasket is fooked too?

try a major service, like reco injectors, fuel filter, plugs, leads, check compression etc.

how do you launch? do you tag the rev limiter at all? heaps of variants that get thrown up, what suspension? etc...

half a second was the difference between summer and winter with my old ef before i got the cam installed.
im hoping its the same with my xr6 turbo

clutch slipping as it gets hot? not shifting as well?

my au when stock went 2.6s/89mph/16.5 ET for comparo and thats an auto.

and the auto wasnt/isnt in very good nick.

back in the day i had a stock au futura auto, it ran a 15.9 in the cool, 16.3 in heat.
the weather really does make a difference.

your times almost seem like somethings out.... like fuel, or plugs, or a sensor... how does it rev? does it struggle over 4000rpm?

its just a stock BF XR6 turbo, 6spd auto.
i'm lookin at my timeslip, i got a 2.125 60ft.
ambient temp - 22 deg, 82% humidity, track temp 31 deg.

Whats the ute run?

13.55 @ (from memory) 107mph was the best, did mostly 13.6-7s all night though.
thats why I asked, your making me look bad
2.1ish 60's as well, was a hot night, probably similar to yours.
f**k me dead, I think I gotta get out to calder once it cools down, can't have XR6Ts running with me
And Mitch told me you couldn't drive for s**t, he must have been lying

the suspension is lowered its really not the "ideal" setup for drag racing. kyb shocks up front with lovells superlows, and kings lows with a coil lopped of the top. theres not water in oil cause its not white i dont have any water leaks although i do have an annoying powersteering leak that i cant seem to find no matter how manny cans of degreaser i use, so the head gasket it is good. compression? probably no really should be checked. fuel filter is maybe 10,000k old the the previous one did about 20,000 and the one before that looked like the original. its got bout 6 month old leads plugs, regulary cleaned k&n filter is thinkin of going to the 24pound au v8 injectors use 6 have 2 spares? i generally launch around 3-4 thousand rpm. the 16.3 run i wasnt actually to sure how the clutch would handle it being the first time i had run it so i was a little easy on the loud pedal launched maybe 2300 but it dont wheel spin on the vht. clutch slips a bit on launch but its sort of a good slip sounds dumb i know but i rev it dump clutch takes off whiles revs come down and the speed cathes up the clutch fully engages around 2500 rpm give or take a little if i change to quick the clutch will slip in third. i can watch the speedo over the line and i know roughly how quick i went cause if i go through the traps at 135 i know that it will have done around an 16.7 but
if i go through traps at 139-140 its gunna pull a 16.3-16.4.
i hope that answers everyones questions