Lauching point....

[TjXiong]

I wasn't sure where to post this up but I was wondering where everyone's lauching point is at. I know that it will probably be at a different range, depending on your setting but just want to get a general idea.

[bouncer07]

I wasn't sure where to post this up but I was wondering where everyone's lauching point is at. I know that it will probably be at a different range, depending on your setting but just want to get a general idea.

Most stock non turbo cars good launch is at 3K RPM.

[HiImBrian]

8k drop ftw!


jk awd is usually in the 5k range

[sleepydsm]

I rev it up to 9000 RPM, and dump the clutch. Luckily it's AWD, so I put no stress on my front axels. If it was a FWD, I'd break my axels and tear the boots. I have a solid rear axel swap in my awd talon from a toyota, I'm gonna swap in the 4x4 transfer case and the front solid axel. Then I'm gonna tub the front and rear halves for big rubber clearance.

[JET]

I have the 2 step at 5600, but on a free rev I launch about 6200. That varies some on the traction available too.

[tpunx99GSX]

I have my launching RPM set at 5500, with the antilag starting at 3300. Built about 15psi at launch.

[mike55112]

I launch at about 5000 rpms and then my clutch slips real bad. God damn stock evo clutch!

[311evo]

My evo's clutch went out also, now i have an ACT and have a 2-step set at 5500 rpm. AWD of course

[bouncer07]

The Correct Way To Launch Your

All Wheel DriveHold the RPM at 4500 while sitting on the line, and then slip the clutch out very quickly while adding throttle at the same rate.

Front Wheel DriveWell, there's been some talk recently about how to get the FWDs to hook-up at the line. Aside from spending big bucks converting to an AWD system, there are a few things you can do to get somewhat respectable 60' times at the track. Here's what *I* think (cocky college kid mode ON):
First of all, it's very important to have tires with tread on them (as I found out last weekend :-( ). Seriously though, the tires you choose to run are EXTREMELY important. Throw out those GT+4's and get a nice set of performance tires. It seems that as far as street tires go, the Dunlop SP8000's, and Goodyear GS-C's are pretty sticky tires that will give you decent all-season performance. I currently have some Dunlop D40M2's, and although they lasted a long time and I've had numerous 2.0-2.1 60' times with them, they just break away too easily. I'm currently in the process of getting myself some BFG R1 tires, but I don't expect them to last over 10K miles on the street. After more than 100 runs, I'm pretty confident that sub-2.0 60' times are just not possible with your typical "street" tire. I'll see what both R1 and slicks can do at the ShootOut! While I'm on the subject of tires, inflation is key to getting the power to the ground. At the track, I've experimented with tire pressures in front from 10lbs to 30lbs. If the pressure is too high, you'll just sit and spin and hop. If it's too low, you'll lose optimal contact with the track, and it will slow you down at higher speeds. I've found that the best pressures are around 15lbs in the front, and 55lbs in the rear (reduces drag). Now we get to weight transfer. What you want to do is keep as much of the weight in the front of the car when launching. I'm sure you've noticed that the front wheels seem to lift up under hard acceleration as the weight "transfers" towards the rear of the car.
What I have done is to install GAB adjustable struts/shocks and Eibach springs on my car. The GAB's can be adjusted to virtually prevent weight transfer, while the springs lower the cars center of gravity. I'll be cutting a coil or two off of the front springs to give the car a "raked" attitude to further reduce transfer in the coming month. I've found that the optimal setting for the GABs is 8 in back(full stiff) while leaving the front struts on setting 1(full soft). This seems to let the tires bite into the track more as the front suspension gives a little, while the rear doesn't move. Another benefit of these suspension upgrades is that I have NOT had wheel hop since putting these on. Another thing you can do that I have not tried, is to experiment with "air bags" in the rear shocks. These clever little things let you inflate them inside of the coil to stiffen up the rear shocks even more. They're affordable too if you can't get the GABs. Needless to say, take EVERYTHING out of the hatch (spare, jack, seats, carpet, tools, etc...).
Finally there's the actual launching technique. Believe me, his takes a LOT of practice! Here's what has worked best for me (I think): When you get to the line, bring the RPM's up to 3000. I don't believe that dialing the boost down is the answer to getting a clean launch, rather it's careful use of the gas.
When you launch, DON'T let the RPMs jump up on you, and DON'T take off at full throttle in first gear! I don't know about you guys, but if I get a bad launch, I'll smoke the tires all through 1st, 2nd, and 3rd.
OK, the light turns green. Now when you feel the clutch start to grab, keep it at half-throttle and gently slip the clutch until it's all the way out, preventing the tires from smoking(keeping it around 3500). Now you have to be very careful with the throttle. It takes some practice, but after awhile you can feel when the tires are on the brink of spinning. Keep depressing the gas SLOWLY as you gain speed, keeping in mind when you feel that your tires are about to let loose. It's very easy to get anxious and floor it, but resist the temptation.
The 1-2 shift is critical to your success at the track. If you've launched right, you should be able to get through 1st without spinning until around 6000. When you go to make this shift keep in mind that if you just floor it, I guarantee that you'll spin all through 2nd and you'll have to get off the gas and bog down. Also remember not to go completely WOT in 1st gear. Any spinning that you're doing when you make the 1-2 shift will just make for a sloppy spinning 2nd gear.
As you go into 2nd, keep the RPMs steady at around 4000. Slip the clutch out until the tires bite, then start giving it some serious gas. Don't go WOT until you're sure that the tires are biting well. At around 6200 RPMs (any higher and you'll start spinning again if you have modified your car), shift into third quickly and don't let the RPMs drop below 4500. Give it full throttle as soon as you let the clutch out.
After you've gone into 3rd you should be set to "speed shift" into 4th in a few seconds (don't take your foot off the gas, but shift VERY fast). The optimal shift point from 3rd to 4th seems to be about 5500 for the stock turbo, and around 6800 for the 16G. I don't know if I've cleared this up, or if I've just further complicated things. It's hard to describe how the car should "feel" as you near the point of spinning. After a few runs you'll see what I mean. Slipping the clutch and careful use of the gas is very important, so I'd also heartily reccomend a CFDF clutch if you're going to do this.
LASTLY, FWD's are just more skilled drivers.. LOL!!!! j/k!

[tpunx99GSX]

Source???