its been awhile guys, but here are some new timeslips....
the lane circled is my lane...and all the numbers circled are bests to date.

id love to figure out how you cut 1.689 short time and lose 2 tenths and 3mph....anyways here are the time slips

 

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more guys

 

last one

 

With a stick I wouldn't even try to compare time slips. Too inconsistant for that. Too many variables to deal with.

 

im not having this argument with you again, thats assanine. about half the cars you see at the track on a given night are manual trans cars, so i guess no one with a 5 or 6 speed should ever drag race because the information obtained is useless. Unless you plan on bracket racing every weekend and being within 1 thousandth of a sec on every run then you should just stay home and not race.

the 60' times are mostly in the 1.70's and the trap speed is all over the place as is the ET....and the best short time had the worst ET of the day with a low trap speed.

launched at 5500rpm, shifted at 6200rpm.....never missed a shift, or was slow on a shift.

anyone have any fresh ideas as to whats going on in the middle of the track

 

No, drag racing with a stick is just fine. Bracket racing is when you really shouldn't even try. Analyzing time slips like you are doing is impossible too. Tenths of a second are nothing. If you have ever been in a close drag race at the track you know that. Just the slightest difference in driving can effect a tenth here or a tenth there. That is why I say it is impossible to properly diagnose time slips like you are trying to do, but by all means go ahead and try.

 

really? then how do you think you figure out what going on? do you think they put all the numbers on the time slip for fun? it must be magic or something that they use to make adjustments

 

This post really wasn't about this, so I will stop before I ruin what you are trying to do. Let me just say this. When it comes to a stick car the driver is 90% of the race. Ever seen a Z06 run 14's? I have. Enough said. Good luck figuring out why you ran slower. My guess is it has something to do with the driver, and no that is not a flame.

 

of course there are variations between runs......ive also seen a z06 run an 11.9 with slicks and a k&N, and yes that guys a good driver. you must be the best driver in the world, because most posts ive seen you reply to involve you blaming the driver. you like to exercise your holier than thou attitude so you must be the most prolific drag racer in the history of the world

im a pretty damn good driver myself, and while there is variation present in the data, there are clear trends.....i think im gonna have to make a graph of this in excel in order for you to understand what i mean.....i'll post it up here when i have the time to make it. the variation between the individual passes is there, but the same pattern is present in all of them, trap speed is high, traction is 100% and the 60' times are good.....so something is going on in the middle of the track.

if anyone has any constructive opinions about whats going with these numbers id like to hear it

 

I'm sorry if i came off that way to you. I am by no means the greatest drag racer in the world. I'm probably average, some might say above avarage, but oh well. I was simply saying that an average stick driver is not consistant and that might be where your problem lies. I noticed on the first run you trapped 110, then a few 108's and a 106. 4 mph is a pretty big variance. Could be something to look into.

 

apology accepted....you tend to come off pretty abrasive at times....you have to remember that there is no tone of voice on here so its difficult to tell peoples intentions

 

Can you give us some information about your setup in detail? The thing that strikes me as wierd is your 60 foots are awesome, and your mph is good enough to be a low 12, but your car is running mid to high 12's. Let us know some more info.

 

Break down each run to see the difference in time between points on the track. I also see you were hot lapping. Making runs within 1/2 hour of each other doesn't give the car much time to cool down. The engine is hot and the tranny oil gets really hot. That will cause inconsistancy. You're making consistant 108 mph passes except for the 2 at 110. You did something different to make an extra 2 mph from hp. Possibly shifting at a different rpm.

You didn't post the runs in order that you ran them so I'll just reply as run #1 etc as you posted the time slips.

Run 3 had the best 60' time. Run 6 had the best time between the 60' and the 1/8 mile. Run 1 had the best time between the 1/8 mile and the 1000' mark and also had the best time from the 1000' to the 1/4.

After doing that breakdown, you can see where you gained or lost during each run. If the car is geared properly, you should be in high gear by the 1/8 mile and the last 1/8 mile is a brute hp pull. The 1000-1/4 mile should be almost the same on each run or within a couple of thousands which yours are not.

I can't offer any suggestions except to get a shift light so that your shift points are the same each time or at least a lot closer. Watching a tach is the worst way to shift. Also use a 2 step so the launch rpm is the same each time. The lower the variables in each run, the most consistant the car will be.

Adding up all your best incremental times gives you a best of 12.596 so you know the car should theoretically be able to do that.

 

I might of missed it, but what gears do you have? what rpm are you crossing the traps in? if my knowledge is correct you want to cross the traps right around where you would normall shift. If you are trapping at 2k rpms, that could possible part of the problem your having, it seems like you have a car capable of .3-.5 tenths faster than its running..just a thought.

 

thanks steven thats kinda helpful.....

however, in order to pull the last 1/8 mile in high gear id need like a 6.xx rear gear lol.......it is alot better with the 4.10's than it was with the 3.73's though. i do have a shift light and i bang gears pretty quick.....i have been toying with the idea of using a 2 step as well it would make things easier.

im still trying to hammer out the optimum shift rpm and launch to a much closer number.....some dyno time should help that i think. the combination is starting to improve now as well, so with that dyno time and some careful tuning i think i will finally find all that missing power ive been talking about.

for the people asking about the setup, its in my signature look below

 

When I say high gear I mean 1:1. You should never use or need OD in the 1/4 mile. The gears are small and not very strong.

When keeping race logs, do a breakdown of each run. Try to figure out why you gained or lost time on each run. Having a fantastic 60' time but losing the time you gained on the top end means you still run the same ET. If you know what caused the slowdown on the top end, then you'll have a better idea of what to do or not do on the next run.

That's why bracket racing isn't as easy as it looks. Each run is a little different so being able to dial a car in takes a lot of knowledge of what happens. If you launch and feel wheel spin, you know you're going to be slow at the end. If you're late or short shift a shift, you'll know the run won't be the same. The goal is to make every run the same as before. Speed costs money but making a car run consistant can win money.

 

thanks steven,

i did mean 1:1 which is 4th gear in my transmission.......i think i probably hit 4th a 100 ft or so after the 1/8th......im trying to get my buddy to video tape some passes so i can disect what was going on from outside that car that may help too.

 

What rear gear and tire are you running. Also, I can put on touch with a couple local guys who run sticks that have their cars pretty sorted out. P/m or e-mail me and I'll get you their e-mail addresses so you can ask some ?'s. They can give you some tips as to tire choices and how to adjust the air gap for r/t tuning.
Also, most of these guys do run a two-step for staging rpm's, some mat the throttle and others hold it at the limiter.

 

its a 26" tire, mickey thompson ET streets

4.10 gears, transmission ratios are 3.27,1.98,1.34,1.00,.68

obviously crossing the traps in 4th gear......i see your from marshfield are you one of the CMDR guys? they were up at the track last week when i was there

 

No, I live outside CMDR's 90 mile radius. The guys I'm referring to run and normally go rounds in stock class eliminations. Let me know if you are interested in getting in touch with them.
If you are at NED next Sunday, I'll be there if I get the new Strange rear swapped in. Stop by and say hi if you are there, car number is 1697.

 

thats cool....i didnt know they had limitations on who could be in the CMDR....i dont really know that much about them though.

next weekend i probably wont make it to the track, but the following weekend i will more than likely be there......im heading into the last week if my college career and next weekend is the weekend before finals so things are kinda hectic around here.

i will probably be up there the weekend after that though.

 

You need log the outside temp and the coolant temp on each timeslip as well as the barometric pressure and the rest of the stuff if you really want to figure out what's going on. Somebody makes a hand-held thing that tells elevation and all that weather info to see if the conditions are changing so you can change your tune. Have you played with the jets and timing curve, initial and total timing yet?