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.

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12-24-2009, 03:39 PM	#2 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	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.