will this part be an extensive time consuming install? any guesses on how long it'll take to swap one out?

I can give you a discount if I ever sell this on the forum. ;)

Flex plate is the part that connects the 7AT to the engine. One side is the engine and the other side is the torque converter. The teethes are for the starting motor. :tup:

It's a three hours or less job and any dealership or performance shop should be able to do it. :happydance:

I need u to explain me in detail what this could do for us auto guys. I dont know much so help me understand.
Does this mean we can go FI without worrying about transmission failure or is this just to delay the inevitable ?

There are still problems with the transmission, this is just a jumping off point

Agreed. The flex plate is not the first step in AT tranny upgrades.

I track my N/A 7AT about once a month and I have upgraded the torque converter and valve body plus my flex plate. I know a couple local people with FI and they're are fine on street with stock transmission, but on track you'll probably want a fully built transmission to be safe.

Attachment 105616

Attachment 105617

Question's about A/T,,,you mention problems with the transmission-i was looking at the cracked flex plate when i noticed this comment.
Are you referring to problems after an auto ~Z~ has be modded (forced inducted etc....) or just in general?
i've never had a glitch with mine stock & run it very hard at times.
ty for any input.

even stock you can crack the flex plate i would imagine. if you run it hard and lots of high RPM up/down shifts could wear on the flex plate over time.


actually saying that makes me wonder how bad mine is right now lol

:wtf2:

Knowing you. Your's is spider webbed with cracks, Ready to explode and take your feet off. :eek: Then I would be calling you Stumpy instead of Penis. :rofl2:

haha well played :tiphat: ..........also probably true. :shakes head:

My car is N/A with intake, exhaust, and Uprev and I cracked mine twice. First time it was just the flex plate and the second time I had a full transmission replacement. I drive on track about once every month or two so I do drive pretty hard, but I personally know a guy who is completely stock and cracked his flex plate plus transmission with only 10,000km/6200miles. He did get it replaced under warranty tho.

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

........maybe i should check mine soon lol

45K miles on the clock now.

You aren't running enough power to worry about it. Plus you drive like a grandma:stirthepot:

don't make me smack you. :shakes head:

.........in for tickets to the show! :drama:

He'd have to catch me first and we all know that's something he can't do in that slow @ss Z of his:stirthepot:

Ok...I'm done trolling Presto in somebody else's thread

Good Imfo: i was wondering what the symptoms would be,,,been so long since i had to replace a flexplate.
Deffinitely no loss of power or ck. engine lights.

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

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:

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

if you're stayin NA then a flex plate and cooling should solve any future issues.

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

what was parts and labor on that?

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

Z

you still have no motor?

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

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 ?

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.

Ty Bang 🔫

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

Level 10 has 2 upgrades.
Build 1 is good for 700H & 750T
Build 2 is good for 1,000H & 1,200T
Valve body & converter upgrade (parts) are good for 700H,the rest of the trans.?

It appears that all i can dig up on the RE7R01A (7sp.A/T) is 295Torque max.
So;with that being said-my 275H & 243T is within specs.
So Forced induction would require a Tranny overhaul/Build.
nice to know.
Manual Trans. Z's lose about 15% between crank & wheels
A/T Z's lose about 17%
That mean's i'm maxing out my trans. w/stock HP & TQ (275+hp & 243+tq @ wheels)
interesting.

Yeah, it's basically maxed out from factory and that's why I upgraded my transmission. :tup:

Attachment 107144
Just got a few pieces for a couple friends today. :rofl2:

Dang-That's what i call HEAVY-DUTY! looks like a Flywheel!!!

Thank you. In Chinese they actually have the same name, lol. :tup: