Brakelate wrote:TOTALLY just going from memory here... I am damn sure those who enjoy crunching numbers and with a clearer mind than my own will chime in with exact data;
But, I think the magic number was right around a 1.8 60' time to get you there if everything else thereafter fell into place casually. 1.7's would definitely be there, and I think most of my own 11.7-ish runs were following a 1.68 or so short time. On the occasion I dipped into the 1.5's it was a guaranteed mid 11 pass, and if your car has decent trap speed up around 119-120 mph in the quarter you are at a 11.5 or better, no problem.
Hope that made sense, and helps some.
Yes, this is helpful.
If I only need to cut a 1.8 60ft based on your guestimate, that seems like a much more attainable goal than needing a 1.5 60ft to crack the 11s.
We'll have to see what I can lay down at Irwindale and then crunch the 1/8 mile numbers to see if I'm on pace.
Brakelate wrote:BTW, do you think we have totally destroyed the integrity of this "New Member Introduction / Terminator Owner" thread just yet? Poor guy. Only new person to come along in MONTHS, and we completely disrespect and whore his first thread to death! You should be ashamed. Lucky if we don't get banned. Where is Lightning Larry when we need him ??
There is actually a tool over there on the dark side who is LL jr, I warned MRKALICHROME about what they do and why we all left
I'm enjoying the banter, the videos and the good information. Entertaining and Educational. Win/Win.
Now just don't anyone mention a dyno day or a shop name or this whole thread will get deleted out of nowhere!!!
I was warned and like clock work, threads were ending up on the sides of milk cartons!
I looked at my Excel file and on 135 11 sec passes there were only two with 60' times worse than 1.7x. At Fontana once I went 11.997 off of a 1.817 60' and at Carlsbad 11.995 off of a 1.816 60'. You can bet that both those times I spun at launch but powered to a high 11 sec pass. There were 31 passes in the higher 11's off of 1.7x 60' times, with most of the 1.7's being mid to low 1.7's. Finally, there were 96 decent 11 second passes with 1.6x 60, times. However, my 9 best ET's at various tracks were all made on 1.5x 60' times. So, the data showed that quite often, when I was dialed in with the old Cobra I was doing 1.6x 60' times, and those were generally on MT DR's.
So, based upon my data, I'd say that with good shifting you'd want to 60' in the mid 1.7's at a minimum to hit 11's at Famoso. With your power levels and solid driving, you should crack the 11's easily with any 60' in the low 1.7's or better, and mid 11's can happen with any 1.6x 60'. But, this is just my opinion based upon saved data for my old Cobra.
There you go. That was the solid info I knew would bubble to the surface for you.
No one we run with has run the Toyos. I was considering them, based on cosmetics and that they had a good size for me. But, they should be adequate.
Mickey Thompson DR's in the stock 275/40-17 that fits perfectly on the stock rear wheels is the golden ticket pretty much anywhere. They are soft enough to hook at Willow, with throttle control and literally no burn out, (in those 30 win /passes, I NEVER did a burn out at all - when you ever saw me making smoke, I was just fooling around, killing old tires or pimping for a picture). Then, when shit gets serious, at Irwindale, or Famoso, where they have decent prep, a light sub10 second burn out in the box as you roll out onto the pad is sufficient. Then, with a little grace, you can swiftly lift off the clutch from 6k RPM and go for it. It will hold, and even with your gear (like mine) 11's are yours.
Hell, I wouldn't sweat the tires right now. Unless, like me, you were driving in from out of state, or trying for the ONE shot in a million type of pass. But, I've literally driven up there, rolled off the highway on some cooked out, bald, mooched 315 Nitto DR's on stock wheels, aired down to 20 psi hot, and run an 11.7. No shit. Famoso can hook when it wants to.
We like Greg at RET. There are some others as well. Since this board has no sponsors other than XJRGUY providing a home out of the goodnes of his heart , there arent the same issues as there are on the dark side
My 11 second pass was off a 1.78 60'
MT ET Street D/R's are the shit
When I ran my 11 at Famoso, it was mid day (Not the Primice Conditions) but Blaine was prepping the crap out of the track that day. He had sprayed the length of the track twice, half track once and had drug the track with rubber 6 times before I made that pass
Is Famoso a little expense? A little, But, you get what you pay for
We like Greg at RET. There are some others as well. Since this board has no sponsors other than XJRGUY providing a home out of the goodnes of his heart , there arent the same issues as there are on the dark side
Correct, there is no bias or leverage here at all. (except for in Tetge's Epicurean Delight forum) LOL
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Tetge wrote:I looked at my Excel file and on 135 11 sec passes there were only two with 60' times worse than 1.7x. At Fontana once I went 11.997 off of a 1.817 60' and at Carlsbad 11.995 off of a 1.816 60'. You can bet that both those times I spun at launch but powered to a high 11 sec pass. There were 31 passes in the higher 11's off of 1.7x 60' times, with most of the 1.7's being mid to low 1.7's. Finally, there were 96 decent 11 second passes with 1.6x 60, times. However, my 9 best ET's at various tracks were all made on 1.5x 60' times. So, the data showed that quite often, when I was dialed in with the old Cobra I was doing 1.6x 60' times, and those were generally on MT DR's.
Awesome! I love this data! Its really helpful to narrow down the ballpark.
Tetge, can you run the numbers and provide MPH info analyzed in the same way as your ETs?
I'd be interested to see the high vs low MPH variance and the mean MPH for high 11 second passes. Not trying to throw more work your way, but if you already have it in a pivot or set up, hopefully it won't be much bother.
Tetge wrote:So, based upon my data, I'd say that with good shifting you'd want to 60' in the mid 1.7's at a minimum to hit 11's at Famoso. With your power levels and solid driving, you should crack the 11's easily with any 60' in the low 1.7's or better, and mid 11's can happen with any 1.6x 60'. But, this is just my opinion based upon saved data for my old Cobra.
I'll be shooting for 1.7s then.
Too bad the rain kept me from going to Irwindale today. Would have liked to get a baseline for what kind of 60fts I'm starting out with and work from there.
I considered looking at MPH, but, I have never considered trap speed as much of an indicator since it generally is more a function of HP than any other factor. People run well into the 120's on HP and still have lousy ET's. And, with poor 60' times, traps speeds can still be about the same as with much better 60' times for the same vehicle. We assume that this is because with a poor 60' the car has more time to accelerate to the end of the 1/4. Of course, it is still possible for a skilled driver to get a bit more trap speed out of a given machine, but, the real indicator that there are skills involved will be found in the 60' and ET. Traps speeds are sort of like roll racing, which only proves HP for the most part. Not that HP is bad, but, since I never have any, I have the point of view of a deprived person about it. My old Terminator only made 434 RWHP and 410 RWTQ, and, when there was widespread disbelief about these numbers from my tune on Danny Swanson's dyno, there later was a historically famous dyno day at RET, where my numbers were validated, almost to the HP. I was surrounded by Cobras that were at, or close to 500/500. But, being an underdog is sort of fun, even if you never have a chance in a roll race. And the driver formerly known as PMachy ran 11.3's with less than 450 RWHP. And now I have even less HP, and 11's are never going to happen, no matter what technique I may possess. This is because there are certain thresholds required to propel a machine to an 11 second pass and the 5.0 slug fails on gearing, too tight torque converte, and wheel HP. But, it is easy to drive and if I leave it in drive, it never misses any shifts. Because, unlike jhwalker, I used to sweat all the shifts in my car, particularly the 2->3 upshift. Nothing like a blown shift, after waiting a long time to make a run.
So, I may look at the MPH, but, right now, I can tell you that with the MT DR's and 4.10's there were practical limits on how fast I could trap with the limiter set at 7000 RPM. I shifted religiously at 6200 but, on a really good pass, I would run closer to 7000 RPM in 4th, and close to 121 MPH. And this was true for PMachy as well, although he could push 123 trap speed. But, Carlos, should be able to trap 130 with his Cobra, and he might do that with a low 12 second pass. And, as Brakelate indicated, he ran 11.5's at less than 120 traps speed. 60' and ET go hand in hand. Trap speed means little and, in fact, goes hand in hand with dyno results, at best.
And, if I pontificate and rant and run on, statistics are of interest to me, or, I should say, were of interest to me. I looked at DA and 60' times and ET's and splits and all kinds of data, back in the day. Since I retired from drag racing, I no longer car about such stuff, and, in fact, I seem to have misplaced, or written over the final Excel file for the Cobra. Not that it matters since all that really matters is what you do the next time out.
Tetge wrote:I considered looking at MPH, but, I have never considered trap speed as much of an indicator since it generally is more a function of HP than any other factor. People run well into the 120's on HP and still have lousy ET's. And, with poor 60' times, traps speeds can still be about the same as with much better 60' times for the same vehicle.
Exactly. We are on the same page.
I am looking for more feedback based on solid MPH data so I can also back into how the car is performing. This will help me know if the car can break the 11s, but I just suck driving it?
This is how I see the data points:
MPH - will help tell me how the car is running.
60ft - will tell me how well I can launch.
ET - Not sure how I can tell if I'm "double clutching like I should" down the 1/4 related to proper shifting other than ETs triangulated via 60ft and trap speed?
Brakelate wrote:Mickey Thompson DR's in the stock 275/40-17 that fits perfectly on the stock rear wheels is the golden ticket pretty much anywhere.
That says a lot about those tires. I ran into a guy at the RET dyno day with a Mach running a built motor but NA and said he was cutting 1.5 60s on same MT DRs 275/40-17 running 13.5 psi cold, 14psi hot. Think he put down low 400hp.
Brakelate wrote: They are soft enough to hook at Willow, with throttle control and literally no burn out, (in those 30 win /passes, I NEVER did a burn out at all - when you ever saw me making smoke, I was just fooling around, killing old tires or pimping for a picture). Then, when shit gets serious, at Irwindale, or Famoso, where they have decent prep, a light sub10 second burn out in the box as you roll out onto the pad is sufficient. Then, with a little grace, you can swiftly lift off the clutch from 6k RPM and go for it. It will hold, and even with your gear (like mine) 11's are yours.
6K launch and they hooked? Sounds incredible.
Just wondering if I should find some 17" stockers cheap or spring for a low budget 16" rim. Not sure how the wheel size will impact my tire selection? A few threads I ran across seemed to indicated 15" rims required modifications?
Brakelate wrote: Hell, I wouldn't sweat the tires right now. Unless, like me, you were driving in from out of state, or trying for the ONE shot in a million type of pass. But, I've literally driven up there, rolled off the highway on some cooked out, bald, mooched 315 Nitto DR's on stock wheels, aired down to 20 psi hot, and run an 11.7. No shit. Famoso can hook when it wants to.
If I can get some consistent 1.7 60fts on the R888s at Irwindale, I'll probably just roll up to Famoso the first time with them to see how they perform.