ka breaks up at high rpms.

[Future_gohan]

my ka24det breaks up at high rpms and i'm wondering why...it does run a little rich and is using a lot of fuel. ( i've used about 8gallons of gas so far and the cluster says 3m. )

i need a safcII and a turbo timer.

But this problem only happens at 7k + which should be the rev limiter but ive hit the rev limiter with other cars and it didn't crackle like this does...is it just cuz its turbo charged? I also had a vaccum leak when this did it a lot but now its really only high rpms.

at 29: you start to hear it...

http://www.youtube.com/watch?v=q09CMMG-wCg

but heres to videos of today with the vaccum fixed and its almost fine but at really high rpms it does it.

http://www.youtube.com/watch?v=0MNmeSq69fk

http://www.youtube.com/watch?v=w6BAwMHAQEA

I know...pointless tire shed. we haven't had this thing move in a VERY long time...leave us alone. lol

any ideas? it also starts to do it more when its running out of gas..