drain the tranny fluid.....look and see if there is metal flakes.

You could have broken a tooth and the clunk could have been the tooth catching in the gears and getting grinded into pulp, which consequently would end the clunking once it's ground up.

 

Stupid questions get stupid answers.



Seriously though, do some homework on launching an AWD vehicle, especially if you have DCCD all on the rear.

If you honestly believe that you can do as many 6K dumps as you want without damaging the gears, diff, and axle shafts, then you have unreal expectations of your car.
If the car was designed to be launched all the time, then the life of those parts would be longer. But that is not the case. Cars do not last forever, especially if you are hard on them.

so, to diagnose your problem please be more specific as to what kind of bang it was. Did it sound like an engine backfire? Did it clunk underneath your car? did it come from the engine bay? where do you think it came from?

 

Did you get beat by a Metallic Blue MR2 Turbo?

-GDO

 

Who told you to launch at 6500? Stock clutch? And what did you run last wed?

 

arent you the 18 y/o guy with the blue 05 sti thats from like hayward area that just got ur car like few weeks ago? and u have a friend with a white 05 sti that continuously launches at 7k right? did u buy a downpipe from me? haha

assuming you are this person, tell your friend with white sti to stop launching it that high~ try slipping at 4.5-5k instead. well i did mention that myself, but he kept telling me how the sti clutch can handle it no problem :x

hope all goes well..

 

Hmm well if you ask me a question like the one you asked is kinda an oxymoron. You want to know if you broke something because of a bang then an engine stall then you go on to say nothing is wrong and you drove it home like a champ after the fact that you launched it a few more times just to make sure it was fine??? You really can't get angry at people for being harsh.

In any case you should take it to either the dealer or your tuner and have it looked at.

 

12 seconds on a reflash and downpipe? is that possible or do i just not know what a reflast can do?

 

With a Stage 2 reflash and TBE you should be running 12s. I am still playing around with the Waste gate on high and low trying to tune it for best results with-out spiking. Everyones car is different and you have to always remember that as a rule of thumb. People do "break-ins" differently and also not all cars are made the same. I boost at 1.57hkpa and another guy out here with same setup boosts at cant hit 1.40 and is always around 1.35 thats a difference in almost 4 psi. Im not saying that 23psi is safe to run on a stock turbo, I am still in the test stages of my own vehicle.

Sorry for the Hijack..

You probably didnt snap your tranny but you still need to learn that launching at 6-7k RPM is a bad idea. Listen to what people suggest, your friends might not care if you bust your tranny and you might get away with the first couple times, but you will pay for carelessness by finding out the hard way what happens if you dont listen.

Launching at 4.5-5k also is another bad idea and that is why most clutches go out by 25-30k miles. Clutches aren't cheap also. The real answer that we don't want to hear is that Launching is never a good idea but we do it anyway because we don't notice any immidiate effects or until the car breaks down and wont run any longer. It's now starting to catch up with everyone that has reached that mileage and the clutch (besides the gears) are the first to go. Launch a couple times till you get the time that you are satisfied with then ease up on the launches unless you want to pay out the *** a year from now.

 

Let this be a lesson. When I am going for straight line speed I launch mine at about 3000. That's it and I still do fine. I don't see the justification of abusing the car. If subaru wanted us doing 5500+ clutch drops then they'd have said so in the owners manual.

 

+1 what he said.. you can get a good launch even at 3k RPM..

 

remember the dealer no longer warrenties broken axles..............

 

haha a month later

good info though