95hitam6

iTrader: (1)

so i'm messing around, and i downshift to 3rd, redline, then go to 4th and BOOM! car shakes crazy, i look in the rearview mirror nothing but black smoke, i can't even see the car behind me. i push the clutch in go to nuetral and coast a lil, put it in 4th and drive slow. it acted as if i went from 3rd to 2nd gear but i coulda sworn i went to 4th, so now i'm scared thinking i blew something, but the car drives fine, idles fine no more smoke, no leaks. what happened? even if i did the 3rd to 2nd misshift what caused all the smoke? and what to look for?

Beaflag VonRathburg

iTrader: (176)

You probably bent some pushrods.

Rocky70304

iTrader: (4)

^ agree with the pushrod theory.. except you normally will have some noise still, or have a driveability issue.. but nonetheless that bent pushrods is probably the case.

letsrun97z

iTrader: (7)

lol i think it happens to most m6 guys once luckly it didnt hurt mine i was going i think 70 and bam wap wap redline and pulled me back then back to fith cruzed a lil bit then realized nothing was wrong )but no smoke(

95hitam6

iTrader: (1)

yeah i drove it again and it drives and sounds just like it did before, no ses, oil looks fine, is the only way to tell is to pull it apart?

CRAZZ28

iTrader: (13)

Probably. But it isnt too hard. just pull the valve covers and take off the rockers then pull out the pushrods. If they are bent it will be visible.

SlowZ28/SS

iTrader: (14)

i doubt there bent if its running the same and you cant hear anything....if they bent you should get a tap out of it

RickyMartinZ28

iTrader: (5)

My A4 freaked once on a WOT downshift and bounced and bam, crazy black smoke. No damage either... kinda strange, never done it since.

-Rick

roadhog_113

possible a bunch of gas got dumped in when redlined and then it backfired and poof all the burt gas goes out the exhaust. Thats the theory anyway.

SOLO Z

iTrader: (1)

not sure about a LT1 but most stock rev limiters cut fuel to limit the RPMs

95hitam6

iTrader: (1)

but heres the thing i'm almost 100% sure i didn't go to 2nd, i've done that once in my life and not in this car, it was like i went to 4th and didn't put it in gear all the way and the shifter grinded and shook and the black smoke. also i'm leaking gas at the connector to the fuel filter from the feed line, very small drips, could this have thrown my fuel pressure off, relating to the black smoke?