auto trans

[Crazy]

Anyone running higher than stock horse power on a stock auto-trans with good results or are you using a high stall converter with a modified auto trans? How did you modify it and where did you get the parts?

[Jason84NA2T]

Tehpopa's 86T is running a stock turbo auto transmission with the exception of tractor hydraulic fluid instead of ATF. It shifts fine, and seems to be holding up alright but I don't like to run other people's cars in boost for very long so who knows.

3" turbo back
Cone filter
UR underdrive pulley
Boost at 11PSI
est ~210rwhp through the auto

For upgrades there are a few, but levelten has both torque converter "service" and upgraded "billet" units, as well as modified valve bodies and full transmission service to make your trans handle a claimed 400+hp. You can do the valve body modifications yourself if you can find it on z31.com.

http://www.levelten.com/store/import/pa ... nissan.htm

[Bernardd]

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[G-E]

Bernardd wrote: I have the 3n71b jatco behind my l28et. I've dyno'd at 300hp and run mid 12's. The trans has rebuilt as per a spec sheet I was sent by KEAS in australia. I was also lucky to find an unused b&m shift kit made for the jatcos' in 1981. So far it works perfectly. The torque converter flashes to 2800 before it grabs. And lastly I use a mixed in a bit of tractor fluid (2 liters) to tighten the converter up a bit. If you want the rebuild specs let me know and i'll send them over.

cool post it, the more good info on here the better.... and deleting isn't a concern here at least

[Crazy]

I found a lot of good 4n71b parts at bulkparts.com

[Jason84NA2T]

Just to add to the thread... 3n71/4n71 buildup information:

http://www.redz31.com/forum/viewtopic.php?t=889

[Crazy]

I found a lot of good brand 3n71b/4n71b parts at bulkpart.com