Swapped to a 4L80E

[HalfDozIN]

I wanted to add to the thread that the 4L80e swap I done on my car is nothing but a compliment to the Turbo Regal's drivability. And ultimately, it's a piece of mind of having a durable transmission in the car. I don't get that feeling anymore that when I go out and run the piss out of the car that it might be the last time the transmission will work. This swap puts it up there in the top three mods I've ever done to my car, and I've owned my car since 1986.

Also, for those who are scared about losing 2 tenths off your time with the extra weight and internal loss.... just make up for it by adding a couple of pounds of boost.

My stock bottom end/212 flat tappet/home ported irons/stock intake/6262 combo trapped 126 mph at 28 psi in 85 degree air with lackluster 60' times and a lot of converter slip through the 1/8 at BG this year. With the latter two issues addressed, I really think there is another mph or two left in it. There are probably hundreds of TR's with basically this exact engine setup running around, and the mph seems about bang on to the average for the tune. I agree, and would raise that it might only take 1 psi to cancel out, lol. No beef with the 4l80 here, it's doing just fine.

 

[chopped39]

Have anyone noticed anything about it stealing HP. after you have driven it for some time now.

I probably have 1000 miles on mine, and it takes a beating. We haven't touched the tune we got from Bob. I like the way it shifts, I'm not sure on power level . BEATAV8 does the tuning. Maybe between 500 and 600 to the tire. I know I didnt need it, but I got a killer deal from CK so in it went. I had an older Jimmys build that he is going to go through and that will go in my limited

 

[ShaunDonWe2]

Finished my swap before BG and Bailey helped me work the bugs out with his trans tune, all I can say is it shift’s perfectly up and downshifting, no clunking or etc. only at 9lbs of boost on a 7170 and circle d lockup converter.