OK, I am venturing into new HP and Torque numbers on my truck by adding a bigger turbo and soon propane. I am concerned about killing the tranny too soon.

I will be pulling a car tailer now and again along with a large enclosed snowmobile trailer. So towing is important. But, I will also be out beating the hell out of my truck without a load too doing burnouts and such.

I am adding a LARGE cooler to the tranny and I was going to do a Transgo shift kit but what shift kit should I get and what else can I do to make sure I am not putting in a new tranny the first time I boost up the turbo and put some pro-pain (get it, propane?) :lol: to into the motor?

I have done valve body kits on TH400 and TH350 GM trannys so nothing new there, just need a little guidence through the mysteries of electronic transmissions. Thanks

I think you will need the Transgo Vacum modulator kit ( line pressure mod) and the big Transgo shift kit for openers.

Keep given me options, I am ready to make this thing hold together. I have a combo that might actually put out power and I need to keep that powertrain together. If you can, get me some part numbers and places to get these parts. Thanks for the info

What kind of power are you looking to put down. Put a **** kit with bigger Lock up soliniod in it and Crank Up the Pressure. It will hold. No Problem.

What kind of power are you looking to put down. Put a **** kit with bigger Lock up soliniod in it and Crank Up the Pressure. It will hold. No Problem.

WTF?
What is a four star kit? Bigger lockup solenoid does not exist( why would it?) Where are you going to get the big pressure from? Why did you even post? Sounds like you are trying to pass some beer tech here.

What is wrong with you. You must be a Donkey WHOLE. You are a Tranmission Dealer I Would never buy from someone that dosen't know anything,like you. Maybe if you lsten you could learn something, insted you have to Jump someone. Have you every made a 4l80e hold the power and torque of a cummins. I don't think so, SO JUST SHUT THE HELL UP!!!!!!!!!!!!!!!!!!!!!!!!

Common now, lets keep this legit and not get out of line.

Mike,
Be nice.... Didn't we talk about this the other night:rolleyes: .
This is supposed to be helpful not hurtful.
Don't want another sleepless night do you?;)
Mark

Mike,
Be nice.... Didn't we talk about this the other night:rolleyes: .
This is supposed to be helpful not hurtful.
Don't want another sleepless night do you?;)
Mark

Mark
Did you read his post? Total nonsense. Beer technology. This is supposed to be helpfull info to all and I don't put up with this crap. Sorry. Larger solenoid? Give me a break. OK, back to the subject at hand. A solenoid is nothing but an electronic needle or ball valve. You can use a solenoid off the LosAngeles aqueduct but you will have to neck it down. The voltage will be the same, so whats the point? Nothing. The solenoid ONLY opens a passage in the valve body and cannot increase pressure. Some solenoids are on and off ( means open or closed like a door and are applied by one hit of electricity to turn them on ). Some are PWM ( pulse width modulated which means the engineers wanted to control the pressure in a moderated way for comfort so they send graduated signals to apply them instead of one big shot). No way will they increase pressure. How about some real tech without the beer talk?
mike

OK, I am venturing into new HP and Torque numbers on my truck by adding a bigger turbo and soon propane. I am concerned about killing the tranny too soon.

I will be pulling a car tailer now and again along with a large enclosed snowmobile trailer. So towing is important. But, I will also be out beating the hell out of my truck without a load too doing burnouts and such.

I am adding a LARGE cooler to the tranny and I was going to do a Transgo shift kit but what shift kit should I get and what else can I do to make sure I am not putting in a new tranny the first time I boost up the turbo and put some pro-pain (get it, propane?) :lol: to into the motor?

I have done valve body kits on TH400 and TH350 GM trannys so nothing new there, just need a little guidence through the mysteries of electronic transmissions. Thanks

Check with the guys from ATS. They offer full blown trannies and parts. I know straigth cut gears and triple loc converters are available to help the 4l80 in the strength arena as well as the shift kits and valve body fixes. It is not listed on their website (last I knew) so you will have to call them.

Hughes transmissions also carries alot of parts for the 4L80E trans. They build them up for drag racing behind some healthy engines, so they would probably have all the parts needed to beef up your current one.

Anyone here can look at all my posts and see that I have never been a trouble maker, and I have never attacked anyone!!! But MIKE you know what you are just a dumb f-ing Asswhole. and you have no clue what you are talking about. And if I ever hear anyone say anything about your Trans shop I will tell the to Run far far away.

1st off you can trun up the EPC.
2nd there is a bigger LC Sol.
3rd what do Programmer do to Transmissions, they increase the line pressure.


The is a lot you can do with line pressure,.
The 4L80e is a lot of fun to play with,we use a TCI tans controller with ours, behind a CUMMINS, and we haul Cars on a 3 car hauler and have been over 30,000lbs.

SO LISTEN TO WHOM YOU MAY

Peace and Love

Anyone here can look at all my posts and see that I have never been a trouble maker, and I have never attacked anyone!!! But MIKE you know what you are just a dumb f-ing Asswhole. and you have no clue what you are talking about. And if I ever hear anyone say anything about your Trans shop I will tell the to Run far far away.

1st off you can trun up the EPC.
2nd there is a bigger LC Sol.
3rd what do Programmer do to Transmissions, they increase the line pressure.


The is a lot you can do with line pressure,.
The 4L80e is a lot of fun to play with,we use a TCI tans controller with ours, behind a CUMMINS, and we haul Cars on a 3 car hauler and have been over 30,000lbs.

SO LISTEN TO WHOM YOU MAY

Peace and Love

You can tell anyone anything you like about me and my shop. You are still pushing beer tech here. Let's take it a step at a time and maybe you can learn something.

Turning up the EPC ( electronic pressure control solenoid) is screwing in the allen head bolt in the end of the soleboid that is preset at the factory. It is basically a needle valve. Screwing in on this thing will keep it open and allow pressure at the wrong time to the wrong place. Not a good idea.
A bgger lock up solenoid will do no good at all. Do I believe it exists? Hell yes for people like you that are going to buy it.
What do programmers do? The EPC works off a 5 volt signal. The lower the voltage the higher the pressure. So what do these geniuses do? The cut the voltage down to make their programs acceptable and not let the trans slip as much. Problem is they did nothing for longevety and it is nothing but a bandaid. Believe what you want. My transmissions would not stand a chance with this tech.
mike

12V - If you get a chance, you might want to give Mike a call..He's been around transmissions longer than you or I have been alive and has an excellent reputation when it comes to his craft..

Mike,
I understand your point and can understand your frustrations. But there are other folks out there that have experimented with other options and have succeded. Keep in mind that you have been around for many a year and don't stand to go anywhere for a long while.
You know when you get to build my tranny.... it may be awhile, but someday it will happen, and I'm going to want something that has not been done before and above and beyond what has been done before.
You have not been doing what you have for 40+ years for nothing.
Just try to utilize a more politically correct approach to your responses even if it does not agree with the current laws of tranny life. Things don't evolve or get changed without new approaches. The Frankenstien would not be here if it were not for new and innovative approaches.
Just food for thought.
Mark:)


You can tell anyone anything you like about me and my shop. You are still pushing beer tech here. Let's take it a step at a time and maybe you can learn something.

Turning up the EPC ( electronic pressure control solenoid) is screwing in the allen head bolt in the end of the soleboid that is preset at the factory. It is basically a needle valve. Screwing in on this thing will keep it open and allow pressure at the wrong time to the wrong place. Not a good idea.
A bgger lock up solenoid will do no good at all. Do I believe it exists? Hell yes for people like you that are going to buy it.
What do programmers do? The EPC works off a 5 volt signal. The lower the voltage the higher the pressure. So what do these geniuses do? The cut the voltage down to make their programs acceptable and not let the trans slip as much. Problem is they did nothing for longevety and it is nothing but a bandaid. Believe what you want. My transmissions would not stand a chance with this tech.
mike

I would say that it is prven that the 4L80 can hold alot of power if built right. So there is no need to be fighting here over who's method is best. The same thing can be acomplished different ways with different results. If you want to know what works and what doesn't look at companies like Hughes TCI and Jet for example. I don't personally know what they do to there units, but I do know they make good products that hold up. Everybody has there own way of doing things, thats all. I know there are people building up the 4L80 with some off the wall parts and puting them behind some major power, time will tell if it works. Different strokes for different folks, thats all. So there is no need for the name calling or attacks. Opinions are like A--HOLES, everybody has one and they all stink. So lets all take a :chillpill and get back to the subject of the thread and kiss and makeup:hug: .

Amen!

:( Sorry to sturr up so much controversy. I am just afraid of dropping a trans so soon. I am doing a little research on it through the different companies, TCI and Hughs as well as Jet. I guess I will have to get some parts and let the tires burn:ro) .

Chicago,
You could always go with a Quadzilla 4l80e. I was looking at them and they sound nice just way out of my budget.
Mark

Chicago,
You could always go with a Quadzilla 4l80e. I was looking at them and they sound nice just way out of my budget.
Mark

Yea, right, and I just watered my money tree last night and it is ready for picken'. OH DAM, my tree just struck by lightening and burnt to the ground:( .

Anyways, I am just out to put in some little upgrades that will make my tranny a little stornger and have some firmer shifts.

I am looking at the shift kit from TransGo right now.

I am looking at the shift kit from TransGo right now.
Me to if I keep my current Suburban, or my next one will get one.

This an explanation for you guys that think I am the biggest asshole around. I deal in facts and the latest tech available and not hearsay. When I hear this kind of b/s like bigger solenoids it sets me off because I deal in truth. There is too much bogus info out there especialy when someone thinks they overheard some facts or were lied to by the repair shop. I do not post here to drum up business and I don't even work on 4L80s unless for special people. You can count on one thing from me wether you like me or not; you will get the straight scoop and latest tech that is proven to work. I took the time to come to this board because no one else seems to want to help you guys. I will. You can call me with any questions. I am not selling anything.
mike

I hear ya.:lol: . My seeds never sprouted after I left home some ten thousand years ago:eek: .
I could have stayed home and been taken care of for life but I chose to do the military thing(partly helped by the judge:cool: ) and then 7 years later chose to just go home to visit. And yes that is coming in november and I can't wait to eat some good food again and not have to actually cook it myself. I would say don't tell my wife that but theres no fun there, she'll admit it. I am actually a certified Chef and gave it up after 14 years because it was too hard on my knees. Go figure, now I am a remodeler and into construction and just cook when I want something special:blahblah: .
Mark

Yea, right, and I just watered my money tree last night and it is ready for picken'. OH DAM, my tree just struck by lightening and burnt to the ground:( .

Anyways, I am just out to put in some little upgrades that will make my tranny a little stornger and have some firmer shifts.

I am looking at the shift kit from TransGo right now.

But that Quadzilla is nice though...:D
Mark

We're all allowed to dream...:exactly:
Mark

Chicago,
You could always go with a Quadzilla 4l80e. I was looking at them and they sound nice just way out of my budget.
Mark

I have heard MANY horror stories over on www.ck5.com (http://www.ck5.com) about their "Raptor" 700r4's, so I would shy away from them until you find a few who have had success with them. They spend alot of money on advertising but not much on customer support after the sale.

Thanks for the input. I will check it out but it will still be a long while until I could afford anything like that:( .


I have heard MANY horror stories over on www.ck5.com (http://www.ck5.com) about their "Raptor" 700r4's, so I would shy away from them until you find a few who have had success with them. They spend alot of money on advertising but not much on customer support after the sale.

I've mentioned it before, and I'll do so again. I put a Transgo valve body kit in my 4l80e tranny and haven't had a lick of problems with it again. It included drillling some holes in the seperator plate and VB along with changing out a valve (power valve?) and a few misc parts. I've never talked to Mike personally, but do beleive he is just trying to help. Give the guy a break, anyone who knows as much about auto trannies as he does that is willing to share some of his insight should be taken seriously. You guys can come in here and talk like your going to do this or do that, but in reality that's all it is is TALK! Let's face it, the only reason any of us own/owned a 6.5/4L80E is they are cheap and/or we have/had diluted ideas of improving things to be competetive/reliable. For all intensive purposes if one adds a good tranny cooler, temp guage, and keeps up on maintinence then the 4L80E will be able to hold it's own with the limited power of th 6.5. Heavy towing and unlocked convertor operation are the main killers of the auto tranny IMO...

On Edit: For the record, I know very little about auto trannies. I know the basic principal to how they work, but not many specifics about them. I just followed the directions that came with the Transgo kit and made it through alright.

I've mentioned it before, and I'll do so again. I put a Transgo valve body kit in my 4l80e tranny and haven't had a lick of problems with it again. It included drillling some holes in the seperator plate and VB along with changing out a valve (power valve?) and a few misc parts. I've never talked to Mike personally, but do beleive he is just trying to help. Give the guy a break, anyone who knows as much about auto trannies as he does that is willing to share some of his insight should be taken seriously.

On Edit: For the record, I know very little about auto trannies. I know the basic principal to how they work, but not many specifics about them. I just followed the directions that came with the Transgo kit and made it through alright.

Well, maintenance is my first priority and next is I am gonna order the Transgo valve body kit.

I do very much appreciate the advice given my Mike and all the other inputs. Sorry to stur up some verbal lashings, really not my intentions.

I don't think you stirred up to much, it was some of the other responces that did. That's a sharp looking rig in your avitar:ro) Good luck with it.:cool:

Just got it started today. Runs good with the new mods, can't wait to pull something. I am gonna get the kit monday though and put it in, I think I am gonna need it for sure. Thanks for all the help guys.

Thanks for liking my rig too, its GM's Copper color, and from what I hear, mine is one of 400 with the color. Kinda neat.

I would install the transgo stg 2 shift kit and a ford style superduty cooler made by tru-cool (if you have enough room in front as it is 8.5" by 22.75 by 1 1/4 thick). It has a 40,000 lb gvw rating and cools so well it comes with a thermostatic bypass valve. The transgo kit is the best in my opinion because it has a relief valve in case your vehicle ever goes to limp mode or suffers any kind of electrical failure that causes full line pressure which can litearly crack the third/direct piston or drum (I have seen this personally in my shop). Turning up the epc is a bandaid approach which will cause bangy/harsh shifts even when driving real easy. One of the weakest points in a 4l80e is the cushion plates in the direct and fwd clutch drums,they often crack and cause clutch pack to jam when transmission tries to shift. I have also seen the input shaft (which appears to be very beefy) shear off at lube oil holes. One of my suppliers offers a billet input shaft for guys with big power. I have built 4l80e's for hot rods running 800 hp that are holding up with a few basic mods like the transgo stg2 and blue plate racing clutches/heat treated kolene steels,6pack 3rd drum vs 5 pack stock and a computer that adds line presure under high tps settings,Smitty
Anyone in michigan that needs trans help with a 4l60e or
4l80e feel free to call me 989-823-7319

WTF?
What is a four star kit? Bigger lockup solenoid does not exist( why would it?) Where are you going to get the big pressure from? Why did you even post? Sounds like you are trying to pass some beer tech here.

What is YOUR problem?? I have talked to him before in chats on the dodge board, and he is a good guy, that doesent try to cause trouble. Maybe if you question something he said, you should POLITLEY ask him to explain, and go from there instead of acting like a crazy person. He was just offering up the stuff he knew that worked for him wether you like it or not.

Eric

i have to buddys, one went threw 3 stock auto 4l80, and two modified from BD

the other went threw two stock and last week the third full blown 4l80

these guys have spent lots of money on these trannys with no luck to date, maybe a bit of installer problems, maybe a bit of tranny problems, but what i have seen so far, they have a real problem holding over 500hp, i had heard their was also another tranny you can use in modded trucks, any body know the name, thanks

i have to buddys, one went threw 3 stock auto 4l80, and two modified from BD

the other went threw two stock and last week the third full blown 4l80

these guys have spent lots of money on these trannys with no luck to date, maybe a bit of installer problems, maybe a bit of tranny problems, but what i have seen so far, they have a real problem holding over 500hp, i had heard their was also another tranny you can use in modded trucks, any body know the name, thanks
What kind of power level are your buddies running? I often see failures on 4l60e's and 4l80e's caused by other engine components/electrical compoments. Oftem we have to fix and upgrade the transmission then find root cause of failure so same exact thing doesn't happen again. I'll give you a example-I did a trans job on a mid 90's chev3/4 ton w/4l80e last year,gears were melted out of trans,clutches burn't,all kinds of damage. Replaced parts on trans,performed rebuild,replaced tq convertor etc. When road testing it there was a intermittent check engine light and no lock up clutch operation. Scanned vehicle and it had a cam sensor code which actually indicated getting bad info from distibuter.This year truck had a plastic vortec style distributer and bushings in it were wore allowing shaft to dance around giving truck a intermittent signal to computer. The motor ran perfectly fine,trans shifted o,k BuT it had no lock-up clutch operation because computer didn't know what to do. I see alot of gas trucks with intake leaks where the motor ends up low on antifreeze over time but not low enough to actually overheat. The trans cooler in the radiator ends up getting no heat transfer frim coolent being low,trans ends up wiping the planetary gears out from oil being too hot. These are just 2 examples of motor problems outside the trans causing it to fail,there are plenty of others,Smitty

one guy is in the 600hp as the other is around the 450hp, both problems seam to be from installer i have been told, but that could just be a BD excuse

There is no bigger lockup solenoid, maybe he meant a bigger lockup converter.' Can't go wrong with the dual or triple disc converter. The transgo shift kit is a needed item but itis much harder to install than the old turbo 400.

HERE WE GO AGAIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!:blahblah::blahblah:


Next Time I go to my Trannie shop I will Get the part number. I am tired of you all Callin me a lier to my FACE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!
The fact is, its out there and it works. I have used it on a 4L80E with a CUMMINS in front of it. All you guys have to do is ask And I will never post in the transmission treads again. I was only trying to help people out with problems that we had to over come with our 4L80e. I only post when its something that i have tried!!!!!!! AND THIS ONE WORKS!!!!!!!!!!

The 4L80E is a good tranny up to its limits. I believe it is limited at 750 foot pounds of torque - may be off there a little. I have two vehicles running
4L80Es behind Cummins and both trannys came from Jet Transmissions in Long Beach, CA. Neither is computer controlled. I have a box designed by an engineer that provides manual shifting, manual torque converter lockup in 2nd, 3rd, and 4th above a preset RPM, and full line pressure. It is great for towing as you can lockup coming down hill and use the exhaust brake for complete control. If you want a serious 4L80E, I would check these guys out.

12v, Get the part # for the solenoid??? The solenoid is just a switch that tells the lockup valve to move or not to move. The valve itself, seperator plate orifices and ck ball in input shaft control the apply speed of the converter clutch and none of these have anything to do with the apply pressure. PS 35 years in the trans industry and still learning.

Good call, ip2222, I was going to mention the orifices but everybody was so "back and forth" on this stuff that I didn't want to get involved. I'm with you on the "still learning" part. I,too, started on Hydra-matics, Cast Iron Powerglides, Jetaways, CC-315's, Borg-Warner T-35's, etc. Fun, huh?

I'm working on a '63 Cad as we speak...some fun! Hope we never grow up!