Originally Posted by Megan370z (Post 3258607)

I first cracked mine and didnt know for a year. It made the knock sensor upset and was reducing ign timing which means losing power for almost a year before I blew the front transmission seal/bearing. No one was able to diagnose the lost of power at the time and why the ign timing was lowering this much.

Once the new transmission was installed the timing went back where it should be and gaining about 30+whp in the top end.

This second flex plate didnt survived 5000kms as I pulled the 7AT to swap in a 6MT.

In my opinion the first mod on the 7AT should be the flexplate ! then an oil cooler if doing agressive track days.


edit :
the picture from 2011 on the dyno fully tuned but with a cracked flywheel. we had no control and spend nearly a complete year to figure out what was going on ,, almost traded the Z for an EVO X.

http://www.the370z.com/members/megan...ed-z-evo-x.jpg

Originally Posted by GZ3 (Post 3259558)

in for GB.... with some upgrades this tranny will be an absolute beast

Originally Posted by FPenvy (Post 3259573)

flex plate and cooling helps but this tranny still isn't too strong. quick and hard shifting hell yea but it's strength is it's weakness if you want to go big power.

I want to look into how andy found a torque converter upgrade. haven't seen many if any online.

:tup:

Originally Posted by GZ3 (Post 3259606)

I think the most ill squeeze out of this car is around 350rwhp(optimistically) ....i wont be doing any power adders eithers... your right though, its not the strongest...with some upgrades though I see this bieng a good thing

Originally Posted by Z eliminator (Post 3259932)

I had my converter done by PRO TORQUE .
stall raised to 2900 to 3200 rpm.
and he reworked the entire converter.
a total different beast.

Z

Originally Posted by Z eliminator (Post 3260742)

I think it was between 550 to 600 dollars
made a big difference.

Z

Originally Posted by FPenvy (Post 3259573)

flex plate and cooling helps but this tranny still isn't too strong. quick and hard shifting hell yea but it's strength is it's weakness if you want to go big power.

I want to look into how andy found a torque converter upgrade. haven't seen many if any online.

:tup:

Originally Posted by jchammond (Post 3261080)

what are the symptom's of a cracked flexplate on these cars....i've replace them years ago on old chevy's & ford's...but didn't know what to listen or feel for on the A/T Z ?

Originally Posted by Rusty (Post 3261137)

Think the first thing you would notice is a cut in power. As it plays helll with the knock sensor. The timing would be cut back because the sensor is picking a knock.

The second thing would be hearing a new noise from under the car, or hearing it up through the floor board.

The third thing would be a car that doesn't go anywhere. That would be after the BIG BANG.

Originally Posted by andy_meng1024 (Post 3261074)

I ordered the torque converter and valve body upgrade from Level Ten.

Originally Posted by FPenvy (Post 3261537)

very nice. for me I don't think i'll go big unless I break something........or if I go TT eventually just get level10's 1000hp rated tranny lol