Launching an A4
 

Any tips?

I have been trying to experiment locally with launching my car, but its kinda weird to sit at a light at 3k.... :lol:

I hook pretty well, just curious if its better to launch as high as you can, or not as much and then punch it ..?

I have a 3600 ish stall, 3.23s and 275s MTs.

try both ways, you can raise the RPMs on the brakes until the car almost starts to move and when the last light turns yellow release the brakes and hammer the gas. Or you can sit at the light at idle on the brakes and when the last light turns yellow release the brakes and go WOT (flashing it). my LT1 car responded better to me flashing the converter and got me a 1.86 with the stock converter

Yea, thats what got me thinking about this, cause it feels faster if you punch it off the line versus dumping it.

Try both ways at the track. The time slip will tell you which is better.

I launsh mine between 2300-2600. Havent found the sweet spot im afraid launch higher becaause the trans has 116k miles on it. Ive pull bewteen a 1.69-1.71 consistently. Ive never got it to hook flashing it

Yea, track costs moneys to only get like three or four pulls in.

Friggen rain is crimping my style though. :(

You'll get wayyy more than 3-4 runs in at Island. Whiplash performance came at like 9 pm last time we went to Island and made 5-6 runs while downloading/messing with his tune each run.

Ok, well detract the 2 hour drive in gas then... all I am saying is I don't have the money to go practice at a track.

If it takes you 2 hours on a Friday night to get to Island, you fail. Besides, you were bragging about your 20 mpg highway in the chat the other night!

you said you never went to the track before

35 + mpg's and then you can brag.

unless you can get 17 out of a truck that runs about 13 mpg's ;)

Yup... I have been practicing I guess you could call it, on some back roads and what not.

not what i ment. I am referring to you saying that you only get 3-4 runs in

Ohhh, thats just what I have gathered from listening to people who do hit up the drag strip occasionally.

I think anyone can agree that trying to launch a car on the street is nothing like launching at the track. My car with a stock converter (when it was a4)would light the tires up from a dig. On the other hand at the track it would bog ( 2.73s). Just goto the track, the seat time is well worth the money.

The last time I went to Atco, I arrived at about 5:15 and I left at 8:30. I ran 10 times and could have gotten 3-4 more runs if I had stayed longer. I think it's $15.00 well spent.

agreed. I think I somehow got 11 runs in that night while letting the car sit for a 30 min period because of clutch issues. Matt go to Atco if your worried about only getting a few runs. If atco is open tomorrow night, it'd probably be the best time to get a lot of runs in. 30% chance of showers=lots of people in the bushes=endless amounts of runs.

Maybe next week after schools out. You go every weekend Vinnie?

Nah, I haven't been there since the first or second week of April. Hot/humid weather= not worth going for PB's. If you wanna go though, I'll head out in the truck with the chipped PCM and see if I can click off some low 14s. The camaro is pretty much undriveable right now since the slave cylinder doesn't disengage the clutch. So until i decide to break the bank for an $800+ clutch kit, the car will not be going to the track. I'll probably have the car back up and running in time for my birthday in the first week of june.

Yea, I would be interested in hitting up Atco with some local guys. Bust out some solid 13s I think. :)

If you really decide to go during the week, the best bet is to get there around 5 because that's right after they open the gates and your in the front of the pack for the test and tune cars..this is important so that later in the night when the slick cars start running, you'll be going down the track right after them so plenty of rubber is on the track. I've only had one issue hooking with DR's at Atco and that was because I had the tire pressure at 20 psi. I now run ~18 psi and move out nicely :helmet:

let me know what days your lookin on goin. Ill head may or may not race but would def come up to give advice

Also Matt, back to your original question:

When I first took the truck down the track(Granted with probably 100 less hp), I learned this:
Flashing the converter= higher trap speed
Launching on converter= lower trap speed
But all night, my et's and 60's were all withing a few hundreds. It may be more noticeable with you since your making more power, but flashing the converter seemed to work best for me. I was flashing it from just off idle.(~1300rpm)

Hmm, well I guess we could screw around with things if I ever get it to Atco....

From my experiences with my 3200 vig after many many runs flashing the converter gives me the best 60ft. and et but puts more of a shock on the drivetrain. So what I do is bring it up a little bit off idle around 1000-1200 rpms then nail it, that takes a little stress off the drivetrain. I have tried loading the converter to 2200-2500 rpms but that doesn't work for me like some others. Every car likes different techniques so play around with both to see what your car reacts better to. I haven't been down to the track in a couple of months but if I go and see ya down there I would be more than happy to help ya out along with the other guys who are very supportive that post on the boards. Good luck and have some fun that's what its all about!:nod: