How much power can the tranny take?

[thehunterooo]

I thought about just throwing away a few grand to add a small turbo to the aveo, but that damn auto tranny worries me, how much power would anyone guess it would take before I would be replacing it

[WOLFMAN AK907]

Ugh! How many times has this come up in conversation already? Just wait and trade it in on a manual, turbo Aveo RS. lol Done deal!

[thehunterooo]

cant afford it, have to keep this damn thing

[ontarian_frog]

I thought there was specullation that the auto transmission could take up to 180ft-lbs of torque. I wouldn't count on more than 120 ft-lbs for it to be reliable. If the Optra (Canada), Reno? Forenza? (US) has the same transmission, then I'd put that number closer to 150ft-lbs.

But this is all specullation. More research needs to be done.

The Forenza Transmission code is ZF 4HP16

The Aveo Code is 81-40LE

BUT...the RPO Code (Regular Production Option) is the same, being MLQ... Which probably indicates that they would use the same casting, just different internal parts (such as gear ratios).

See http://www.vibratesoftware.com/html_help/html/GM/gm_transmissions.htm