Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   7AT Valvebody upgrades? (http://www.the370z.com/engine-drivetrain/12579-7at-valvebody-upgrades.html)

kannibul 12-24-2009 07:58 AM
Quote:
Originally Posted by terrycs (Post 339565)
It will shift normally if the RPMs are low (driving around normally). Absolutely no problems driving in the rain, even with forced induction (unless the driver is being stupid).

However when you get on it and the RPMs are up, the line pressures in the transmission go up and the time in between shifts go down. It will feel like you are popping the clutch in an MT and you'll be easily chirping gears.

Additional clutch packs are only needed if the stock ones can't hold the power.
Clutchpacks are generally what go bad and cause for rebuild, aren't they?

I mean, they're the weakest link...valvebody helps keep the pressure up to the solenoids, but other than that, the weakest mechanical link to it all is the clutches AFAIK. :)

1slow370 12-24-2009 03:39 PM
no it's usually the friction bands that go first. once you increase the fluid pressure there is more force on the bands and clutches so they are less likely to wear out from slipping.

CGMobile370Z 12-24-2009 10:07 PM
terrycs how is your 5AT holding up with the forced induction installed? Do you have any transmission upgrades?

kosstick 07-28-2011 10:34 PM
BUMP- Any idea if this is available for the 7ATS yet?

theDreamer 07-28-2011 10:37 PM
GTM is still currently working on 7AT upgrades, with the recent finish of the stage II supercharger development we might see some news soon on the 7AT.

Jamaica 07-28-2011 10:47 PM
Quote:
Originally Posted by theDreamer (Post 1235518)
GTM is still currently working on 7AT upgrades, with the recent finish of the stage II supercharger development we might see some news soon on the 7AT.
Very true

superchargedg 07-30-2011 04:43 PM
One of the best mod's i ever did.Driving normal you can still feel it but its not bothersome but whe you get on it...whoa the shifts are instant...esp with FI as you will need it.I would also def install a trans cooler to all the 5 or 7 at's as it will prolong the life of our tran's.

Jamaica 07-30-2011 04:55 PM
Quote:
Originally Posted by superchargedg (Post 1237708)
One of the best mod's i ever did.Driving normal you can still feel it but its not bothersome but whe you get on it...whoa the shifts are instant...esp with FI as you will need it.I would also def install a trans cooler to all the 5 or 7 at's as it will prolong the life of our tran's.
Thanks for insight now we play the waiting game

kosstick 07-31-2011 06:16 PM
Any idea how much it would run if you have GTM remove your valve body and reinstall?

Dark Sarcasm 07-31-2011 08:47 PM
i feel stupid now. I thought the ATs already had a trans cooler mounted in front of the radiator. I have an '11 with the 7AT and there is a little silver radiator of somesort just in front and to the left of the large radiator, what is that there to cool? is it the A/C condenser? I've never seen one that small.

Dark Sarcasm 07-31-2011 08:51 PM
okay, i just went out and took a quick look. There is a small cooler mounted in front of the a/c condensor. It has rubber hoses connected to it, what is it for? Thanks.

kosstick 07-31-2011 09:11 PM
Are you taling about the 1-2 inch tall on the left side of the radiator when you are standing infront of the car? I think thats for power steering.

Dark Sarcasm 07-31-2011 09:29 PM
yea, thats it. Thanks.


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