Clunk under WOT

[MS3Pilot]

Just curious as to the validity of claims I have heard that the engine in the MS3 can shift so violently as to hit the firewall. Just tonight I noticed a relatively loud clunk right during the 1-2 shift. Any ideas what that might be?

 

[Speed3Rookie]

You probably experienced wheel hop.

 

[stockms3]

motor mount, if it was loud its the mount for sure. Our mounts = T3h weak lol

 

[dkswim]

the sound was your warenty falliny out... ha ha ha

probably just some wheel hop or the mount reaching the end of movement

 

[coyfish]

Yeah all mazdaspeed owners deal with the 1st - 2nd bang. Happens when shifting fast from 1st to 2nd when driving aggresively. Only way to avoid this is to hold the clutch in longer and let the rpms drop or upgrade your motor mounts.

 

[mattj3636]

i dont think i ever had that bang from 1st to 2nd with a stock motor mount... lol

 

[spdjnke]

The "bang" noise is normal, I experienced it when I first bought my car and took the damn thing back and demanded my money back for a POS, but then I check it over and everything was fine, and after the install of a CorkSport MMI, it doesn't "bang" noise anymore but you definately feel it.

 

[coyfish]

i dont think i ever had that bang from 1st to 2nd with a stock motor mount... lol

Maybe your not shifting fast enough or your MM is upgraded? I drove about 3 speed 3's and 2 speed 6's and they all had that nasty bang.

 

[mo4130]

its your exhaust system hitting the frame, do your self a favor and get a motor mount before you beat it

 

[Engineer420]

Get a new mount..stock or upgraded..ur is worn out and flexing more than it should..I had the same clunk when downshifting say from 3-2, 2-1 and it went away after I had the mount replaced..Im wen back to running the stock mount because I couldnt stand the vibrations throughout the cabin from the stiffer rear mounts..so I just deal with it.

 

[strytnyne]

i still get it with the corksport inserts, think it would help if i got the trz tranny mount too?

 

[08_MS3_GT]

i guess i don't shift hard enough...? because i haven't yet experienced the bang. i have a tendency to shift nicely from 1-2 because killing the drivetrain would suck. i go hard from 2-3 and 3-4 and get no bang.

if you want to beat on it a motor mount should be on your list. wheel hop alone can break a lot more than you would expect.