7AT Valvebody upgrades?

kannibul · 12-24-2009, 07:58 AM

Quote:

Originally Posted by terrycs

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

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

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.

12-24-2009, 10:07 PM	#18 (permalink)
CGMobile370Z Base Member Join Date: Sep 2009 Location: Miami, FL Posts: 144 Drives: 2009 Nissan 370Z Rep Power: 15	terrycs how is your 5AT holding up with the forced induction installed? Do you have any transmission upgrades? __________________ 370Z Touring/ Sports Package/ Stillen Gen3 Intake/ Stillen HFC/ NST Underdive Overdrive Pulleys/ FI Cat Back Exhaust/ Custom Headlights

07-28-2011, 10:37 PM	#20 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	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. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

07-30-2011, 04:43 PM	#22 (permalink)
superchargedg Base Member Join Date: Jan 2011 Location: timonium Posts: 144 Drives: 2003 g35 TT Rep Power: 14	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. __________________ My car is bone stock...i promise.

07-31-2011, 08:47 PM	#25 (permalink)
Dark Sarcasm Track Member Join Date: Dec 2010 Location: Katy Texas Posts: 552 Drives: 11 CTS-V Coupe Rep Power: 15	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. __________________ wax Last edited by Dark Sarcasm; 07-31-2011 at 08:51 PM.

07-31-2011, 08:51 PM	#26 (permalink)
Dark Sarcasm Track Member Join Date: Dec 2010 Location: Katy Texas Posts: 552 Drives: 11 CTS-V Coupe Rep Power: 15	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. __________________ wax

12-24-2009, 03:39 PM	#17 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	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.

07-28-2011, 10:34 PM	#19 (permalink)
kosstick Track Member Join Date: Apr 2011 Location: Los Angles Posts: 668 Drives: G37 Rep Power: 15	BUMP- Any idea if this is available for the 7ATS yet?

07-31-2011, 06:16 PM	#24 (permalink)
kosstick Track Member Join Date: Apr 2011 Location: Los Angles Posts: 668 Drives: G37 Rep Power: 15	Any idea how much it would run if you have GTM remove your valve body and reinstall?

07-31-2011, 09:11 PM	#27 (permalink)
kosstick Track Member Join Date: Apr 2011 Location: Los Angles Posts: 668 Drives: G37 Rep Power: 15	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.

07-31-2011, 09:29 PM	#28 (permalink)
Dark Sarcasm Track Member Join Date: Dec 2010 Location: Katy Texas Posts: 552 Drives: 11 CTS-V Coupe Rep Power: 15	yea, thats it. Thanks. __________________ wax

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