Goal somewhat accomplished...
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New PB, goal somewhat accomplished...
Well it went 1.56 and 6s in the 1/8 as well as trapped 105.9 and 132.5 in the 1/4 though I couldn't put it all together. Theoretical best doing the calculations of breakdowns I came up with a 10.61 and race weight was 3125. The air was better than last time (0 DA according to dragtimes) and probably won't be this good again until fall, hopefully I'll have new intake on and maybe gears by then. My excuses are there was a ~15mph headwind and think I also need new tires as these are 8 years old now. There were a ton of Mopars there being tomorrow is a special event for them and I did see an auto Hellcat on drag radials go 11.2@125, so that made me feel better. Should have lined up and taken his money as he wanted to run initially, but not dialed in yet with this setup. Bogged first run launching easy and cleared things out. Second pass dropped tire pressure to 15psi and launched a little harder, got warning for running 10s no cage. Third pass raised rpm to 5k and lowered to 14 as I knew didn't have a lot of time, dunno why slip was cut short. It felt good, but wish they showed 60' on boards and let out after missing 3rd. Thought I could repeat it though on 4th pass and wheel hopped from something on the track, so bad that I almost called it quits for the night. Though it still trapped 103.9 even letting out of it twice, I let out early to insure I was in the 11s. Launched easier at only 4k last pass as afraid track was going away, can see it wiggling/spinning on power shifts and believe that is why mph was down as well as the splits. It has only 200miles on it and still on non-synthetic oil as well as the month old gas, so believe there is more in it to come given more seat time too...time will tell
Last edited by PRE-Z06; 03-28-2015 at 09:35 AM.
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At 14 they appeared to be getting full wear across the tread. Know y'all have run the same wheel/tire combo, is that how low you ran them on those rims for the sweet spot? As I thought tire psi was like a bell curve from what I've heard/experienced and was afraid to go lower.
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#6
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Thanks, you're always welcome lol
At 14 they appeared to be getting full wear across the tread. Know y'all have run the same wheel/tire combo, is that how low you ran them on those rims for the sweet spot? As I thought tire psi was like a bell curve from what I've heard/experienced and was afraid to go lower.
At 14 they appeared to be getting full wear across the tread. Know y'all have run the same wheel/tire combo, is that how low you ran them on those rims for the sweet spot? As I thought tire psi was like a bell curve from what I've heard/experienced and was afraid to go lower.
Without being there, I'd expect around 10-12 cold to be the range for your particular setup with those specific tires and wouldn't object to keep going lower until I noticed the car going in the wrong direction or getting unstable after a few passes.
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Every so often I believe it's important to go outside the box as long as you feel safe, especially in this case because you are slightly under-tired. I need to constantly prove to myself that what I'm doing working best and that takes constant experimentation. And I wouldn't offer such advice to someone new and not under full control of their setup.
Without being there, I'd expect around 10-12 cold to be the range for your particular setup with those specific tires and wouldn't object to keep going lower until I noticed the car going in the wrong direction or getting unstable after a few passes.
Without being there, I'd expect around 10-12 cold to be the range for your particular setup with those specific tires and wouldn't object to keep going lower until I noticed the car going in the wrong direction or getting unstable after a few passes.
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I don't want to speculate, but do believe if it had fresh tires, 3.90s, fast 102, EWP, no headwind and negative DA that it would trap 137 and knocking on 9s...better chance than a C7Z on drag radials anyways lol
Last edited by PRE-Z06; 03-28-2015 at 09:04 PM.
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Likewise Brian, sorry I couldn't find you after the last run and didn't want to run into the cop roaming in the pits before heading home with ear plugs in from no mufflers...hope you found a screwdriver to borrow, assuming you didn't run faster than 10.12 as I didn't see a new thread posted? Regardless your 10.16/10.18 was still stout given the headwind...thanks, look forward to both our cars going faster in the future!
Last edited by PRE-Z06; 03-29-2015 at 03:58 PM.
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Likewise Brian, sorry I couldn't find you after the last run and didn't want to run into the cop roaming in the pits before heading home with ear plugs in from no mufflers...hope you found a screwdriver to borrow, assuming you didn't run faster than 10.12 as I didn't see a new thread posted? Regardless your 10.16/10.18 was still stout given the headwind...thanks, look forward to both our cars going faster in the future!
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It definitely doesn't help things, especially when it's a steady 15mph head on...got a picture of flags standing straight out if you want to see. Of course I know you know drag is exponential, which when over half the run is at triple digits it has to make a difference. Maybe less than a .1/1mph vs no wind, but every bit helps. If it was a tailwind it'd be more, though the only 1/4 track left here faces north so when a front comes through and brings good air it's always a headwind:-/
#19
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It definitely doesn't help things, especially when it's a steady 15mph head on...got a picture of flags standing straight out if you want to see. Of course I know you know drag is exponential, which when over half the run is at triple digits it has to make a difference. Maybe less than a .1/1mph vs no wind, but every bit helps. If it was a tailwind it'd be more, though the only 1/4 track left here faces north so when a front comes through and brings good air it's always a headwind:-/
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yes atco always has a headwind or bad crosswind, if it was a box nova then it could make a difference, if you ran a 10.000 with that wind then maybe you could have ran a 9.999, or if the record was a 10.200 and you ran a 10.200 then of course you could boast the windor just go back with no wind, its like the old saying would of could off or wish in one hand and crap in the other and see which one fills up firstmany guys running the LS2 platform in stick and automatic C5 C6 haven't got close to the 9s mark, at your race weight and mph with a stick it will be very hard in my opinion. good luck