I displayed my feelings regarding the 4L60E when I pulled the old POS out of the Express for the last time.
This is what a 100k mile 4L85E looked like inside. The magnet wasn't even dirty. If the fluid had ever been changed they used an oem filter and pan gasket.
LOL!Originally Posted by Nasty-Z
You should tell us how you really feel Chris .......... LOL
TOM
and all I wanted for christmas was a 0E XDF with shift time and TCC apply percentage tables.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
I have built several 60E's and 700R4's. I have came up with my own build for them combining several different aftermarket companies parts, Sonnax, Alto, Transgo....etc. So far I have never had one fail. The one in my Blazer pulled a 26 foot camper loaded with all our shit and my whole family for an entire summer. Sold the camper, now it pulls my boat and an 18 foot enclosed car trailer. My temps rarely get over 180.
There are ways to make them hold up, most of your every day builders do not take the time to build them right. It takes me several days to blueprint and build a tranny, just like an engine. If you just throw them together they will not last.
I never use Transgo shift kits, junk, I only use their separator plates. The main 2 issues with the 60E is making the 3-4 clutch and the band live. I have figured a combo out that does both. I even tow with mine in Overdrive, while flat out on the interstate.
The 80E is a beast for sure, I am getting ready to build one that is going behind a LS2 408 in a 68 Camaro. The are big heavy mothers though, and eat up more power.
-1999 Hugger Orange SS, LS2 402 T56, 9 inch Ford 3.90 gears, Tuned with HP Tuners
-2002 Cavalier, Tuned with HP Tuners
-1994 Full Size Blazer ,383 TBI 4L60E, 4.10's, Tuned with Tunerpro RT (Where it all began)
How many transmissions did it take to get the right parts figured out. Most of us don't have time and money to throw at multiple transmission builds for tranny test n tune sessions. The 80E swap becomes a high success rate fix.
It's working, but... eh. I changed the pressure vs altitude gain and that seems to quicken up the shift slightly, but it isn't right. I'm on the fence about going back to the 7060, at least it has the correct trans tables, even if the idle and running quality isn't quite as good.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
Well,
Something definitely sounds amiss with what you are experiencing , what ever became of the LHM you experienced ?
Line pressure adjustments as well as the table you mentioned and a couple others made mine shift fine , don't know why yours is not responding ?
TOM
1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
1992 S-10 434 SBC/Tremec - '7427
1986 Monte Carlo SS
1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
1980 Z-28 496/700R4
1979 Corvette 496/700R4
1977 Olds 98 Regency 403/700R4
Care to share your complete build recipe?
That shift speed altitude gain works backwards from what one would expect. When I changed it, that slowed the shift, causing a shift time error and LHM. At least I know the trans works as it should.
I'm making a few changes tonight and running it tomorrow.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
Same here. How do you get a firm shift if the pressure is lowered so the clutch pack engages slowly?
Leave the maximum line pressure value at 90.
Remember on the EPC less current = higher pressure
If you were to unplug the case connector it would default the transmission to maximum line pressure.
Ramping pressure? Added pressure at time of shift? Rather than just a higher steady state pressure. The higher ramping pressure at shift should fill the clutch pack faster.
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
I will send you a PM, getting a root canal right now.
-1999 Hugger Orange SS, LS2 402 T56, 9 inch Ford 3.90 gears, Tuned with HP Tuners
-2002 Cavalier, Tuned with HP Tuners
-1994 Full Size Blazer ,383 TBI 4L60E, 4.10's, Tuned with Tunerpro RT (Where it all began)
Shift time has tightened up with additional numbers added to the "altitude gain". Inserted my old base pressure tables and it is close to how it was. 4th and TCC is still a bit loosey goosey but nothing that I can't tune out.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
Good to hear Jim . Glad you got it working , you will be pleased in the long run .
TOM
1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
1992 S-10 434 SBC/Tremec - '7427
1986 Monte Carlo SS
1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
1980 Z-28 496/700R4
1979 Corvette 496/700R4
1977 Olds 98 Regency 403/700R4
That didn't answer the original question I quoted, or the follow-up question I posted.
Basically, the question is how can the adaptive learning lengthen the shift time and firm-up the shift at the same time?
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