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Old 04-13-2017, 09:01 PM   #1
clinebarger
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Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: 4L80E & TH400 Tech.

Quote:
Originally Posted by -TheBandit- View Post
clinebarger, thank you for the great tech advice!



When blocking the 2-3 accumulator feed port, should you remove the spring under the accumulator piston?



Regarding blocking the 2-3 accumulator vs. leaving it functional and using a larger 3rd feed hole, do you have a preferred approach? What are the tradeoffs?
No need to remove the accumulator spring, Your blocking 3rd gear oil from reaching the accumulator.

Vehicle specifics would help a lot...... HP, Torque, stall speed, gear ratio?
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Old 04-14-2017, 12:28 AM   #2
-TheBandit-
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Join Date: Apr 2017
Location: Ventura County CA
Posts: 4
Re: 4L80E & TH400 Tech.

It's a 70 Nova roughly 3500lbs dynod peak 410rwhp/390ft-lb rwtq. BTE 2,800rpm 10" stall. 3.73so 28" tall tires. It is a street driven car 90% of the time but I want to take it to autocross a few times a year and maybe to the strip a few times too. I'd love to also try road course. It's not the right transmission for that exactly but it will have to do for now. I don't need the transmission upsetting the tires with banging harsh shifts, but firm would be fine.

Thanks for any suggestions.
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