4l60e 1000 horsepower what mods are done to help it survive
TECH Junkie
Joined: Jun 2008
Posts: 3,194
Likes: 1,377
From: Nitro Alley
Also with the 4L79E Drum, I have had zero 3-4 Clutch Failures at around 1,200 Ft/Lbs and 1,500 HP to the Ground in my Camaro.
So I may end up giving up on an Auto-Shift Version of what Jake's Valve-Body does for 3rd-Gear.
I am going to go and convert some more Stock Valve-Bodies to Manual Valve-Bodies...
I need to machine some more Solenoid Dummy-Plugs first.
So I may end up giving up on an Auto-Shift Version of what Jake's Valve-Body does for 3rd-Gear.
I am going to go and convert some more Stock Valve-Bodies to Manual Valve-Bodies...
I need to machine some more Solenoid Dummy-Plugs first.
I have a 1998 4l60e that is toast goes forward in neutral and doesn’t move In reverse and a lot of metal in the pan, that I am looking to rebuild have read about the different parts that should be used and how you have to make some other modifications that aren’t just changing parts other then the overrun clutch modification that allows it to apply in 1st to 3rd what other mods can be done to help a 4l60e live at this power level. I am not asking for exactly how to do it i am more looking for what are the areas that help these transmissions live with this much power, and possibly to be pointed in the direction of we’re to look to figure it out, and I am not going to be your competition and I am looking to do this for myself and I would like to do this rebuild myself to better understand how it is working to hold all this power then to pay someone to do it for me.
Post 14 here: https://ls1tech.com/forums/automatic...l#post20486119
Click on every link and read through them. It will answer many questions.
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
Also with the 4L79E Drum, I have had zero 3-4 Clutch Failures at around 1,200 Ft/Lbs and 1,500 HP to the Ground in my Camaro.
So I may end up giving up on an Auto-Shift Version of what Jake's Valve-Body does for 3rd-Gear.
I am going to go and convert some more Stock Valve-Bodies to Manual Valve-Bodies...
I need to machine some more Solenoid Dummy-Plugs first.
So I may end up giving up on an Auto-Shift Version of what Jake's Valve-Body does for 3rd-Gear.
I am going to go and convert some more Stock Valve-Bodies to Manual Valve-Bodies...
I need to machine some more Solenoid Dummy-Plugs first.
TECH Junkie
Joined: Jun 2008
Posts: 3,194
Likes: 1,377
From: Nitro Alley
There is just far too much involved...
And the Parts used has very little to do with it.
There is so much more going on with how we alter the Hydraulic Circuits of the Transmission, as well as very small details and finesse that the average DIY Builder would ever know.
If your thinking that a special Friction/ Clutch, or special Part is what is going to make your 4L60E/ 65E/ 70E last, and not self-destruct...
Then you have a TON of research to do before you Build one to last!
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
I realize that it isn’t just parts, I was just looking for what goes into it for parts, I know that there are other things that are done to make them live but I was trying to see what goes into a transmission for parts at this level to go along with the Valve body modifications
I realize that it isn’t just parts, I was just looking for what goes into it for parts, I know that there are other things that are done to make them live but I was trying to see what goes into a transmission for parts at this level to go along with the Valve body modifications
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
When you talk about the modifications to make them stand up and to prevent burning up the 3-4 clutch pack is it that you are removing redundant flow paths to minimize pressure loss and leakage? Or is their more to it than just blocking off redundant paths.
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
If I was going to build a 4l60e to this level would this be a good start
4l79 input drum
sonnax reinforcement sleeve
sonnax billet input and output shafts
Sonnax performance pack
Sonnax smart shell
Sonnax super hold servos
Kevlar extra wide intermediate band
Sonnax heavy duty reaction shaft
Superior (K0136
do you recommend the Sonnax 2.84 input carrier
What else for parts
for internal mods
https://ls1tech.com/forums/automatic...ain-4l60e.html
https://ls1tech.com/forums/automatic...3-shift-3.html
Vacuum test valve body and fix any leaks
fix up the 3-4 clutch circuit (any recommendations for this?)
what else do you recommend?
what about valve body modifications I’ve tried searching does anyone know of any good threads pertaining to these?
4l79 input drum
sonnax reinforcement sleeve
sonnax billet input and output shafts
Sonnax performance pack
Sonnax smart shell
Sonnax super hold servos
Kevlar extra wide intermediate band
Sonnax heavy duty reaction shaft
Superior (K0136
do you recommend the Sonnax 2.84 input carrier
What else for parts
for internal mods
https://ls1tech.com/forums/automatic...ain-4l60e.html
https://ls1tech.com/forums/automatic...3-shift-3.html
Vacuum test valve body and fix any leaks
fix up the 3-4 clutch circuit (any recommendations for this?)
what else do you recommend?
what about valve body modifications I’ve tried searching does anyone know of any good threads pertaining to these?
TECH Junkie
Joined: May 2012
Posts: 3,046
Likes: 713
From: Poplarville, MS
If I was going to build a 4l60e to this level would this be a good start
4l79 input drum
sonnax reinforcement sleeve
sonnax billet input and output shafts
Sonnax performance pack
Sonnax smart shell
Sonnax super hold servos
Kevlar extra wide intermediate band use a carbon band if you can find one.
Sonnax heavy duty reaction shaft
Superior (K0136
do you recommend the Sonnax 2.84 input carrier not needed
What else for parts I like the Sonnax heavy duty overrun hub
for internal mods
https://ls1tech.com/forums/automatic...ain-4l60e.html
https://ls1tech.com/forums/automatic...3-shift-3.html
Vacuum test valve body and fix any leaks
fix up the 3-4 clutch circuit (any recommendations for this?)
what else do you recommend?
what about valve body modifications I’ve tried searching does anyone know of any good threads pertaining to these?
4l79 input drum
sonnax reinforcement sleeve
sonnax billet input and output shafts
Sonnax performance pack
Sonnax smart shell
Sonnax super hold servos
Kevlar extra wide intermediate band use a carbon band if you can find one.
Sonnax heavy duty reaction shaft
Superior (K0136
do you recommend the Sonnax 2.84 input carrier not needed
What else for parts I like the Sonnax heavy duty overrun hub
for internal mods
https://ls1tech.com/forums/automatic...ain-4l60e.html
https://ls1tech.com/forums/automatic...3-shift-3.html
Vacuum test valve body and fix any leaks
fix up the 3-4 clutch circuit (any recommendations for this?)
what else do you recommend?
what about valve body modifications I’ve tried searching does anyone know of any good threads pertaining to these?
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
do you have any suggestions on some critical areas to look at for Hydraulic leaks/ mods?
thank you
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
Building a 4L60E/ 65E/ 70E Family Transmission for an Engine with approx. 1,000HP is not an issue.
It has been done (nothing new, and probably not as scarce as one might think)... and has also even been surpassed!
Vehicle Weight and Intended Purpose are Big Factors...
As well as how much Low-Speed and Average Torque the Engine Makes.
The Engine RPM, and which type of Power-Adder is Pushing Her "O-Button" x3 (Turbocharging being the most forgiving).
But going through with this type of 4L60E/ 65E/ 70E Family Transmission is STRAIGHT WASTEFUL!
(So is a THM200-4R or THM700-R4) unless a Competition has restrictions that force the use of a 4L60E/ 65E/ 70E Family Transmission.
The Bottom-Line here is...
The extra Cost and Time to build one of these is just ridiculous compared to what would be available in a 4L80E or THM400 for less Overall Investment!
It has been done (nothing new, and probably not as scarce as one might think)... and has also even been surpassed!
Vehicle Weight and Intended Purpose are Big Factors...
As well as how much Low-Speed and Average Torque the Engine Makes.
The Engine RPM, and which type of Power-Adder is Pushing Her "O-Button" x3 (Turbocharging being the most forgiving).
But going through with this type of 4L60E/ 65E/ 70E Family Transmission is STRAIGHT WASTEFUL!
(So is a THM200-4R or THM700-R4) unless a Competition has restrictions that force the use of a 4L60E/ 65E/ 70E Family Transmission.
The Bottom-Line here is...
The extra Cost and Time to build one of these is just ridiculous compared to what would be available in a 4L80E or THM400 for less Overall Investment!
thank you for taking the time to reply to my thread I appreciate the time you take in this forum replying to peoples questions and all the information that you provide.
Thread Starter
Staging Lane
Joined: Jun 2023
Posts: 51
Likes: 0
thank you for your help
Moderator
Joined: Aug 2010
Posts: 7,320
Likes: 527
From: Ann Arbor, MI
IMHO, it will cost you $4000+ plus a recent year and good condition 4L60E/4L70E to build it for 1000 HP. Plus you will have to learn every "secret sauce trick" that is needed. Yes, if you read thousands of threads you, you can learn many of those tricks, but many require practice and/or special machining.
That is why everyone is saying to just install a 4L80E. A JY 4L80E with maybe $1000 in rebuild and upgrade parts plus a few well documented "mods" will get you reliably well past 1000HP for only 60 lbs more weight. (Do not compare "official" weights because they include the stock converter which is a ridiculous 70 lbs or so.
That is why everyone is saying to just install a 4L80E. A JY 4L80E with maybe $1000 in rebuild and upgrade parts plus a few well documented "mods" will get you reliably well past 1000HP for only 60 lbs more weight. (Do not compare "official" weights because they include the stock converter which is a ridiculous 70 lbs or so.