CNC 7AT Flex Plate

DEpointfive0 · 07-06-2015, 10:01 PM

Quote:

Originally Posted by Leroydsouza

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

jwick · 07-06-2015, 10:20 PM

Quote:

Originally Posted by DEpointfive0

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.

andy_meng1024 · 07-06-2015, 11:00 PM

Quote:

Originally Posted by Leroydsouza

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 ?

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.

andy_meng1024 · 07-16-2015, 03:26 AM

IMG_8289.jpg

IMG_8302.jpg

jchammond · 07-16-2015, 03:41 AM

Quote:

Originally Posted by DEpointfive0

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

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.

FPenvy · 07-16-2015, 08:42 AM

Quote:

Originally Posted by jchammond

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

Rusty · 07-16-2015, 09:04 AM

Quote:

Originally Posted by FPenvy

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

Knowing you. Your's is spider webbed with cracks, Ready to explode and take your feet off.

Then I would be calling you Stumpy instead of Penis.

FPenvy · 07-16-2015, 09:13 AM

Quote:

Originally Posted by Rusty

Knowing you. Your's is spider webbed with cracks, Ready to explode and take your feet off.

Then I would be calling you Stumpy instead of Penis.

haha well played

..........also probably true.

andy_meng1024 · 07-16-2015, 11:23 AM

Quote:

Originally Posted by jchammond

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.

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.

Megan370z · 07-16-2015, 12:06 PM

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.

FPenvy · 07-16-2015, 12:09 PM

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

45K miles on the clock now.

jwick · 07-16-2015, 01:48 PM

Quote:

Originally Posted by FPenvy

........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

FPenvy · 07-16-2015, 01:59 PM

Quote:

Originally Posted by jwick

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

don't make me smack you.

Rusty · 07-16-2015, 04:17 PM

Quote:

Originally Posted by FPenvy

don't make me smack you.

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

jwick · 07-16-2015, 04:28 PM

Quote:

Originally Posted by Rusty

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

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

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

07-16-2015, 03:26 AM	#49 (permalink)
andy_meng1024 Premium Member Join Date: Nov 2009 Location: Taipei Posts: 233 Drives: 2012 370z Rep Power: 3382	IMG_8289.jpg IMG_8302.jpg __________________ Current: 2015 C200 / 2018 Cayenne / 2012 370z / 2012 C250 Coupe Gone: 2013 Cayenne / 2004 Cayenne S / 2003 SL55 AMG / 2008 C300 / 2006 350z / 2006 C280 4Matic

07-16-2015, 12:06 PM	#55 (permalink)
Megan370z A True Z Fanatic Join Date: Oct 2009 Location: Canada Posts: 1,156 Drives: 370z Rep Power: 24	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. andy_meng1024 likes this. __________________ Megan Journal Click Me ....................One Man Team Motorsport Click Me Last edited by Megan370z; 07-16-2015 at 12:11 PM.

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