...it will be my first time to launch on sticky tires. Will be running 26x11.5x16 Mickey Thomson ET Streets. Anything I need to know about launching my car with these tires on it? Like I said I've never launched a car on sticky tires so it will be a first, anything to expect?

-Sly

 

Are you on stock suspension and fat/heavy wheels up front?? Some ET Drags might hook up a little better with your setup. I would expect that combo to put down some serious power. Just some things to think about

 

ya this weekend will be heavy wheels up front, just picked up these wheels yesterday for $150 with rims, thought that wasn't too bad and has to be better than street tires. I'm still not tuned, well I'm hoping to get tuned saturday morning then run it sunday morning, so I'll let you all know how it does.

-Sly

Only suspension mods are subframe connectors, if you really want to call that a suspension mod.

 

U need an experianced driver now! Can I drive? LOL... Just stall that puppy up untill she starts creaping forward and wait for the last yelow and then let her eat! Don't forget about air pressure in those tires. Something you might need to play with too. Sorry I can't help too much with that, I have a sissy converter. My et streets are run at 18. I could run them at 12psi spraying and run 1.53 sixty ft. Might try there. Hold on rear we have take off.........

 

Cool thanks steve! I have no idea what times/mph to expect sunday, hopefully we can get a good tune on it saturday and she'll be ready to roll. I let Rocky drive my car after putting the gears in it and he was like wtf! because in the mid range the car feels like it wants to go but doesn't (under normal driving) , hence the .650 O2 readings. Anyway this is off topic, I'm gonna try the tires at 15psi first and see what she does. Do they have any air source there? If not then once I take them down I won't be able to bring them back up.

-Sly

 

I have a cheep tire pump (whatever) that plugs up to the cigerate lighter. I can bring it. I use it. Walmart $20. But there is no place there to pump up, just the local gas stations.

 

Good luck this weekend. Have a great time.

Post up your results.

Coach

 

Try to video your runs. I would like to see how you do. Good luck.

 

They will be video'd both inside and outside the car

-Sly

 

Good luck,have fun.
Dave

 

A few thoughts...

1) drive around the waterbox, back into it, spin the tires once to get them completely wet, and then pull forward to the front edge of the water box since you don't want to do a burnout in a puddle (maybe check out the starting line first before getting in line). To me it's important to get the whole tire wet, and then shock the rearend hard when you do the burnout so you don't one-leg the rearend. I even suggested to folks to do this with drag radials back in the day since it's so easy to get one legger action.

2) tire pressure is important. I would not go higher than 22 and lower than 15 cold. I'd try 16 or 18 cold and see how the car does. My tires typically grow 2 psi after a full pass. You can always try 20, then 17, and then 15 and see what works. If you hook the same at 15 as you did at 17, you might have found the limit

3) I do most of the burnout in 2nd since 3rd will drop so low... I do the burnout and roll out nice i don't like to peel out since i might hit the track surface and the car sort of hooks and shocks the rearend. When the car starts to slew to the side during the burnout the tires are getting hot and are grabbing, that's what that means.

4) hard to work on many things at the same time. to me the key is how to launch the converter (stall it up high or just off idle) and tire pressure. Keep track and try to be consistent with your adjustments... like if you stall it up to 1200 and it cuts a 1.58, and then you try 1800 and it goes 1.54, well 1.54 is gooood. If you stall it to 2500 and it goes 1.54 well maybe that's it. Rule of thumb is don't go extreme with anything if you don't have to.

5) .650 02 at WOT is too lean you want to be .850 or more to be safe.

 

Thanks Pro Stock John for the great info. I will keep those things in mind when I go out there. As for the O2 readings, well kind of a long story but the place that tuned my car ended up frying the computer, no one is sure how it happened (ls1edit quirk maybe) so they put a temporary computer in it from a 2000 ss M6 then reflashed the file for the A4 over it. Well when I went back to get it dynotuned they couldn't communicate with the computer so I had to order a new one and if it gets here in time I will be getting dynotuned saturday and running sunday. Once again thanks for the great info!

-Sly

 

I went 1.57 with the same tire setup you have now, without drag shocks. I ran mine at 20-22 cold a lot, and I should have tried 16 and 18. I'm thinking I could have cut some 1.52-1.53's.

I went 1.50 with 26x12.5x15 ET Streets, drag shocks, and the tires at 15psi cold.

When you get to 11 psi, the cars feels skeery down the track. I won't go lower than 15psi cold it's too distracting.

My first burnout is always the longest, maybe a good 5-6 seconds. I go shorter with the rest unless it's cold out.

 

I heard sticky tires get wobbly down the track so I'm expecting that, but I'm guessing under 15psi and it get's really bad?

-Sly

 

Good imfo. Pro Stock John. The only problem is yoou have to drive through the water there. They just reconcreted about the first 120 ft and you can not drive around the water anymore. Not sure why they wanted that, unless they thought it was taking too much time for people to do it and then back up. I run my car at 18 psi cold. You have a better hitting converter, but I would try it there. My car seems to run better stalled up rather than flashing but I would try both just to see which way works better since this just a test session. Good luck.

 

Well I found out I won't be getting tuned until next weekend. Bummer, but still going none the less to see what the car likes. Won't be able to keep it in 2nd gear but hey, I'm just going to practice the launching.

-Sly

 

What is wrong with second?

 

nothing is wrong with it, what I mean is where the rev limiter is set at right now I probably won't be able to stay in second and will have to go into third. What rpm's are you turning at the traps?

-Sly

 

The rpm's are pretty high. You should be ok. You really need to just have it set high so you can see where your car peaks first. Then shift a few 100rpms after that. My first time to the track my car had the rev limiter set at 6200 and it ran a 7.61. Leaving it in 2nd just seems to keep the mph up not really helping the et. I'll talk to you later at the track about it. You should do just fine.

 

Oh ok cool, I wasn't sure how much it would hinder or help the ET. With the revlimiter at 6800rpm's my graph is still climbing fast so I'm not sure how much more I will safely be able to take.