old motorhead

iTrader: (10)

Chris was in the shop when we talked. He thought it was around $775. He said he would have a firm # the next time we talked.

kbracing96

iTrader: (26)

I'll let ya guys know how they work. I ordered one of Circle D's 265mm, single disk, 2800 4l80e converters today and will probable have it in before Silver-mod-o has his in,

Rick_Vor

iTrader: (36)

I have read numerous times on the forums of guys running the stock 4L80E TC because it will stall to about 2600 under FI. I know Rick over at Synergy Motorsports was using one in his 800RWHP shop truck and was very satified with it performance and reliabiblity. Last time I talked to him he had put about 8k miles on the tranny. The tranny was stock other than a HD2 shift kit.

You're dead right that just because it aint broke doesn't mean it won't break tomorrow. I've ran a stock 4L60E TC for over 25k miles under 10lbs of boost and it's working fine. The tranny on the other hand was built twice (once because I tried a TBTC so I had them beef it up while it was out and a 2nd time 4th was slipping at 5k miles) while running a procharger. Once I bolted on the turbo's, it started slipping in about 2k miles, rebuilt it and it started slipping in 4th again by 5k miles. Too much torque.

The 4L80E I'm installing is a bone stock 50k mile 2005 with a HD2 shift kit and stock converter. It the converter and/or tranny craps out in a year, it doesn't cost anymore than the remove and replace labor over doing it right now. There are daily posts of 4L60E's dying right and left but hardly any 4L80E postings. Time will tell...

Rick

fastnblu

iTrader: (2)

What's 258mm in inches? Does the single feature lockup? I was under the impression from PI the only way to get lockup was w/ 3disc; single didn't feature lockup from PI. But don't trust my memory.

265mm in inches? Isn't 258 or 265mm like 9.5" ? Or is it 10.5" ? Sorry, old school.

old motorhead

iTrader: (10)

25.4 mm in an inch. 258mm = 10.16"

hemidup

I'm old school like you. lol I use Edge Racing converter's. I actually have 2. One is an 11" and the other is a 9 1/2". My 11" is a 3000 stall and the 9 1/2" is a 3800 stall. The 11" will flash at 3000 rpm in 2wd, however in 4wd it flashes to 4000. The 9 1/2" flashes at 3800 in 2wd and 4000 in 4wd. I spent the best part of last Aug-Sept testing out my converters and found that my 11" e.t's better than the 9 1/2" which mph'd better. I chose to stick with my 11". I leave the line in 4wd at 9 psi and a 50 shot on top. That combo is good for a 1.521 60' in a 5130 lb truck.

fastnblu

iTrader: (2)

IIRC, on a tranny w/OD, it doesn't lockup under full throttle(I'll abbreviate as FT). I think it kicks it down to 3rd to preseve tranny. That's how I remember it being on the 700r4. The easy way to confirm would be to check B&M or similiar parts list; they have something that locks it out, in I believe 4th under FT.

So my best guess is no lockup under FT. Also, if Chris @ Circle D said you'd be fine as long as there's no FT lockup w/ the single, why do it? Just pound on it or dyno in 3rd.


I hear ya. I wanted to have FLT do up a Level 4, probably a Level 5 4L65E. If the economy/ my cash flow situation continues as it is, my friend & I may be forced to do it ourselves. FLT has a good rep. w/ these trannies on trucks, so I'd prefer that route. Either way, if a 65E is built ***** out & it breaks, particularly if FLT does build, they know all the tricks. I don't. But if ( I said if), I'm going straight to a 80e.

fastnblu

iTrader: (2)

Perhaps I shouldn't be saying old school since I'm under 40. Old fashioned concepts apply sometimes.
You got a stout runner for sure.

So, basically a 265 is like a 10.5". I can't even afford 1 nice convertor, & you're playin w/ 2. Interesting info on stall speed differing when in 2wd or 4wd.

9.5"=245mm. Just checked out Circle D's site.

hemidup

The funny thing is that I heard Supersub and Sharadon talking about their "good old days" today. I laughed and told those 40 year old kids that they were too young to talk about good old days. Sharadon came back with a reply that he remembers playing in the sand at the dragstrip watching his Dad race. His Dad and I probably went heads up at one time during time trials at Minnesota Dragways or at Northstar. Don and I just can't remember lol, but those were the good old days for sure. Sharadon's Dad ran a B5 blue M code 69 Dart (and still owns it) and I ran a B5 blue 69 GTX which I sold in 74 because I had to buy diapers instead of slicks.

My guess is that with Supersub's current tq, his stock converter will flash well over 3000 rpm.

zippy

The lock-up is all in the programming. Normaly 80E programming locks it in 2nd, 3rd, and 4th. You'll want to have your tuner adjust as necessary.