Launching a 2005 sti
- Thread starter SeanZ
- Start date
When launching anything, pre-loading your diff. is recommended. When you pull up and stop at the line ease out on the clutch just enough to fill the grab set e-brake then prepare to perform launch which will involve dropping the e-brake as you take off. This method will save abuse on the differentials greatly.
Don't launch. If you do, don't be surprised when you blow your diff and brake axels. These cars aren't made for that (at least not stock) You may not break right away, but at some point... You will. Its just like donuts. It only takes 1 time to turn your motor into a paperweight. I realize this is off topic but if you asked about launching, you probably will attempt a donut. These motors are built sideways, and doing flat spins forces all the oil from one side to the other, starving it and blowing it up within seconds. 2 main rules with these cars 1. Don't launch 2. Don't flat spin.
The average Subaru owner is probably not financially able to properly handle this task. That being said, it isn't impossible, it just isn't likely. Like Zach said, preloading will help. If you are at the track, obviously you cant roll off the line, so your best bet is to preload and use your ebrake rather than just going balls out and dropping the hammer.
Im not saying it is going to blow apart and cause catastrophic failure 1 time or even 20 times. Its just bad for the car in general, and at some point shit will break and it will be expensive. They were not made for that kind of abuse. Yes, it CAN be done, you can also shoot an assault rifle blindfolded, at a apple balanced on top of an infants head... But its not recommended.
Alin
Diehard Car Enthusiast!
I cringed! :lol: I would suggest to not push your luck!!!!
haha you gotta pay to play. i know i know.
5,500 RPM launches... ALL THE TIME.
https://www.youtube.com/watch?v=LCDwX4HwdIo
https://www.youtube.com/watch?v=8bwnRgg61pg
https://www.youtube.com/watch?v=FwXEc9gGbIU
This is a full STi drivetrain (flywheel to the wheels) with a ACT XTSS clutch. The only time we broke something was when we dropped the tire pressure to 20 PSI on the first pass of the day and they actually prepped the track... He broke a front axle. On the street, he just lights all 4 up.
The drivetrain in these are much stronger than some of you seem to realize. If you want to launch "safely", no need to screw with the e-brake. It'll take some practice, but you'll "pre-load and go". Meaning, let the clutch out to where it starts to grab, then let up completely.
One of my car... Same 5,500 RPM, much less power (Cobb stage 2).
https://www.youtube.com/watch?v=ABRjU9kJq34
It only took CJ 7 or so years to finally blow his center differential... running 11's and 10's on the stock long block.
I haven't personally seen anyone launch/shift harder/quicker than him.
http://forums.nasioc.com/forums/showthread.php?t=2499782
https://www.youtube.com/watch?v=LCDwX4HwdIo
https://www.youtube.com/watch?v=8bwnRgg61pg
https://www.youtube.com/watch?v=FwXEc9gGbIU
This is a full STi drivetrain (flywheel to the wheels) with a ACT XTSS clutch. The only time we broke something was when we dropped the tire pressure to 20 PSI on the first pass of the day and they actually prepped the track... He broke a front axle. On the street, he just lights all 4 up.
The drivetrain in these are much stronger than some of you seem to realize. If you want to launch "safely", no need to screw with the e-brake. It'll take some practice, but you'll "pre-load and go". Meaning, let the clutch out to where it starts to grab, then let up completely.
One of my car... Same 5,500 RPM, much less power (Cobb stage 2).
https://www.youtube.com/watch?v=ABRjU9kJq34
It only took CJ 7 or so years to finally blow his center differential... running 11's and 10's on the stock long block.
I haven't personally seen anyone launch/shift harder/quicker than him. http://forums.nasioc.com/forums/showthread.php?t=2499782
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