I haven't confirmed it yet, but I'm 80% sure that I just broke my 2nd flex plate! I'm wondering if any of you other L67 owners have broken ANY flex plates yet? Assuming I have broken another one, as it has all the signs, I am NOT going to put on a 3rd stock flex plate. Does anyone have any suggestions other than the $400 Mezier plate ZZPerformance has? And, assuming this IS what has just happened, I will be pulling the 2.93 sprockets out and going to 3.29's at the same time. I don't need 140+ mph, that's just KRAZY stupid.
Since we don't have a transmission forum here, this is where I posted it. Why don't we have a driveline forum?

 

Never had the flex plate break yet, but you might be racing it a bit more than I do.

 

what exactly is the flex plate?

 

The flex plate connects the engine to the torque convertor, and has the starter ring on it. They told me the starter torque is what broke the 1st one. I think 50+ extra hp broke this one, if that's what it is. I haven't confirmed it yet. Had to go to a benifit dinner for our Pastor. He has luekemia, again, after 20 years. He is 32 with 2 young kids. He is going to Mayo Clinic Monday. He is half Korean, and a bone marrow transplant is the ONLY real cure for this, and the chances of finding someone compatable is zero to none.
Maybe tomarrow afternoon I can pull the inspection cover and take a look.

 

the flex plate is what connects the engine to the torque converter.

It's a big plate that is bolted onto the engine, and it has teeth all the way around. The teethare there for the starter to crank the engine and turn it over. The flex plate connects to the torque converter with 3 bolts.

I think I have a picture of the flexplate somewhere... let me look and I'll post it up.

 

Confirmed what I thought I was hearing, a broken flex plate. #2[:@]. This one is broke differently than the 1st, I believe. The 1st was broke in a starburst pattern. This one, I just plain ripped the center section out, it appears. Here is a pic of at least 3 broken sections:

If 290hp did this, what is more going to do?
I found the wink link!

 

Damn, it would take a good bit of torque to break that thing. Just hope that if you get a stronger flexplate that you dont just break something else in the tranny.

 

Then I guess I'll find the next weak link.

 

Just a thought for ya but have you had the balance of your torque converter checked. That caused my buddies in his grand prix to go out. Was 1.5 oz off. Just somthing you might want to check when ya have it torn down.

 

Torque convertor is brand new last fall. GM warranty replacement. Probably CRAP. Good idea on the balance. I'm wondering if it was mis-installed, somehow.