Tranny life and death thread

[fre$h si]

Preloading is a method of launching where you rev to your desired rpm with the emergency brake pulled with finger on the lock. Then you start to raise the clutch to the point where it is pretty much catching and the car wants to move forward, but you are preventing that by holding the emergency break. Then when its time to go you drop the e-brake and go. Someone on here made the analogy that launching without preloading is like hitting a brick wall with a hammer as hard as you can, and launching with preloading is like placing the hammer on the wall with little force, then applying as much pressure as you can.

ya i found out the other day from a friend. he let me launch his stock 4door, launces so much better with preloading!!

[aLmk]

Yeah I plan to try it at the track next time I go. I think what I'll do is start out doing it from a low RPM like 3k and slowly work my way up to like 6500 or so to get the hang of it and see what rpm works best. Hopefully I'll eventually dip into the 12's!

[Si Speed 317]

I like the hammer/wall analogy. Definitely going to keep that in mind for the future Do you need to preload the clutch with the e-brake though?

[aLmk]

Yea you need to use the e brake to keep yourself from moving.

[Si Speed 317]

Makes sense, must take a nice layer of material off your clutch though..

[aLmk]

Yea definitely wears the clutch.

[vdubkilla]

Dam I hadn't read this this thread in a while and but I'd rather take a little off the clutch than break an axle or transmission.I can't wait to get my car back together and hit the track again its been apart a while and I have a fresh minty trans all ready to go gonna try to make some more power on it and hope it holds up again like the last one did .I am gonna have to build a trans this I know but $$$ . I am not going to be able to compete consistently til I do and I love the race track to much to break mid season

[snizzletoff]

^that! a clutch is a a cheap replacement, especially since its a wear item. Transmissions are a very expensive fix.