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4r100 issues. How far should i go?

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  #16  
Old 09-12-2017, 11:41 AM
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You mentioned a low stall converter..... How low? I'll probably be going through the same ordeal you're going through very soon! Thanks
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  #17  
Old 09-13-2017, 12:51 AM
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According to the incredibly knowledgeable guy i talked to at ultimate transmission, the torque converter stall will be just slightly lower than the stock unit in a 6.0.

I previously had a 6.0 with the 5r110 and it seems like it had significantly less stall than the 7.3's 4r100 stock converter. Supposedly, it's only a few hundred rpm lower, but in a diesel, even 200rpm stall differance is very noticeable.

I spent about 2 hours talking with a couple of the guys at ultimate transmission before handing them the keys. They are the real deal if you are within reasonable driving distance of the Boise area. They specialise in diesel performance transmissions and have built many 1000+hp competition transmissions, including the 2008 winner of the diesel power challenge, as well as many more recent competitors. The 4r100 and mopar transmissions are their bread and butter.

One of their employees gave me a ride to work after dropping off my truck. His rig was a 676k mile 1st gen cummins with a stage 1 ultimate transmission and various power mods. I have never experienced such a 4 speed auto that shifted so beautifully. He told me the 4r100 has more potential than the early 90s dodge trans in his truck and if i was impressed with his truck's shifting, i will love the way my new built 4r100 will behave.

I'll report back when i get my truck back. I can't wait to actually hear the engine and not mostly the loud as hell torque converter. I was told I'll need custom tuning that leaves the transmission alone if i don't want rough, overly aggressive shifts. Stock would shift as wanted, but the increased line pressure in PHP's canned tuning would likely be too rough in the shifting. I had been running PHP's "daily" tunes to somewhat mask the increasingly worse slipping issues with my old transmission.

I should have my truck back in about a week.
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  #18  
Old 09-13-2017, 08:42 AM
Walleye Hunter Walleye Hunter is online now
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Quote:
Originally Posted by brandonrr View Post
According to the incredibly knowledgeable guy i talked to at ultimate transmission, the torque converter stall will be just slightly lower than the stock unit in a 6.0.

I previously had a 6.0 with the 5r110 and it seems like it had significantly less stall than the 7.3's 4r100 stock converter. Supposedly, it's only a few hundred rpm lower, but in a diesel, even 200rpm stall differance is very noticeable.

I spent about 2 hours talking with a couple of the guys at ultimate transmission before handing them the keys. They are the real deal if you are within reasonable driving distance of the Boise area. They specialise in diesel performance transmissions and have built many 1000+hp competition transmissions, including the 2008 winner of the diesel power challenge, as well as many more recent competitors. The 4r100 and mopar transmissions are their bread and butter.

One of their employees gave me a ride to work after dropping off my truck. His rig was a 676k mile 1st gen cummins with a stage 1 ultimate transmission and various power mods. I have never experienced such a 4 speed auto that shifted so beautifully. He told me the 4r100 has more potential than the early 90s dodge trans in his truck and if i was impressed with his truck's shifting, i will love the way my new built 4r100 will behave.

I'll report back when i get my truck back. I can't wait to actually hear the engine and not mostly the loud as hell torque converter. I was told I'll need custom tuning that leaves the transmission alone if i don't want rough, overly aggressive shifts. Stock would shift as wanted, but the increased line pressure in PHP's canned tuning would likely be too rough in the shifting. I had been running PHP's "daily" tunes to somewhat mask the increasingly worse slipping issues with my old transmission.

I should have my truck back in about a week.
I look forward to hearing your results.
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  #19  
Old 09-13-2017, 09:07 AM
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I too look forward to this. It sucks for me because my very expensive JW trans was never right and now I drive a manual, so I never got the feel of a good shifting E4OD or 4r100.
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  #20  
Old 09-13-2017, 09:20 AM
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Thank you for the reply, it is very helpful. I look forward to hearing how your new 4R100 turns out. I can't come to Illinois, I'm in SE Virginia, but at least I know what to be looking for. Thanks again!


Mark
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  #21  
Old 09-25-2017, 10:17 PM
brandonrr brandonrr is offline
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I got my truck back last week....over $4900 later.

it shifts SO much better now. Between the HD pump, increased line pressure and valvebody work, the shifts are very fast with only a small tug between gears. When i go back for my 1000 mile checkup, i may have them adjust the valve body to go a little more aggressive on the shifting. I don't mind a firm shift, especially if it prolongs the clutches.

As far as temps go, i managed to get the old trans to 248f just driving around town unloaded the day before i brought the truck in. By that point, it was slipping 3rd real bad and then panic locking the torque converter at 25mph, lugging it.
with the new trans, i haven't gotten it hotter than 142f and that took about 90 minutes of spirited driving to achieve.

The old torque converter was blue and purple from intense heat. I can only imagine how hot it was getting as noisy as it was.
the new lower stall torque converter is pretty much silent and the truck is only half as loud as a whole. It also feels like it puts the power to the wheels much more effectively. For those of you getting ready for a new torque converter, a lower stall converter is definitely worth it. All the newer trucks have lower stall converters for a reason.

I'll be towing a small, 20ft travel trailer a few hours next weekend for a hunting trip. There will be a few steep grades to climb and a 20mph steep climb on dirt road toward the end. That will be a decent test for the new transmission. I would tow my 11k lb 5th wheel, but i currently live in it and I'm pretty well settled in currently and don't feel like getting it all packed up to go. I'll save that for the next time i have to travel for work again. Also, i don't have 5th wheel rails mounted in the truck yet and funds are tight enough right now, especially after last week. On top of that, why beat up my nice 5th wheel on those dirt roads when i can take the beater hunting/fishing trailer?
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  #22  
Old 09-26-2017, 08:05 AM
Walleye Hunter Walleye Hunter is online now
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That sounds great, thanks for the update. Hope to hear about your upcoming test as well.
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  #23  
Old 09-26-2017, 08:59 AM
Dan V Dan V is offline
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Quote:
Originally Posted by brandonrr View Post
All the newer trucks have lower stall converters for a reason.
Glad that you have found a good trans company near you.

Here's my take on the quote....The newer trucks have more than 4 forward gears. I'm not sure of the ratios of the newere trucks, but I'd guess 1st gear is lower in them than a 4R100. But that said, when I got my trans from DieselSite, I went with the 5R110 converter.
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  #24  
Old 09-26-2017, 11:52 AM
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Quote:
Originally Posted by Dan V View Post
Glad that you have found a good trans company near you.

Here's my take on the quote....The newer trucks have more than 4 forward gears. I'm not sure of the ratios of the newere trucks, but I'd guess 1st gear is lower in them than a 4R100. But that said, when I got my trans from DieselSite, I went with the 5R110 converter.
Is that a direct replacement or are some mods necessary to make it happen?
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  #25  
Old 09-26-2017, 01:38 PM
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Originally Posted by Walleye Hunter View Post
Is that a direct replacement or are some mods necessary to make it happen?
It was a LONG time ago....as I recall, something was different.
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  #26  
Old 09-28-2017, 04:52 PM
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So how did the diesel site trans work out for you over time?? which model or level did you go with.

do you remember what truck or is it the 01 you show on sigs.. going to a 5r100 from a 4r100 i thought was close to impossible.. different wire harness, tune, shift points maybe a different PCM.. just wondering how you pulled that off..



Quote:
Originally Posted by Dan V View Post
Glad that you have found a good trans company near you.

Here's my take on the quote....The newer trucks have more than 4 forward gears. I'm not sure of the ratios of the newere trucks, but I'd guess 1st gear is lower in them than a 4R100. But that said, when I got my trans from DieselSite, I went with the 5R110 converter.
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  #27  
Old 09-28-2017, 08:11 PM
brandonrr brandonrr is offline
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Quote:
Originally Posted by carl2591 View Post
So how did the diesel site trans work out for you over time?? which model or level did you go with.

do you remember what truck or is it the 01 you show on sigs.. going to a 5r100 from a 4r100 i thought was close to impossible.. different wire harness, tune, shift points maybe a different PCM.. just wondering how you pulled that off..

He was talking about just the torque converter. He kept the 4r100.
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  #28  
Old 09-28-2017, 08:57 PM
Dan V Dan V is offline
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Quote:
Originally Posted by carl2591 View Post
So how did the diesel site trans work out for you over time?? which model or level did you go with.

do you remember what truck or is it the 01 you show on sigs.. going to a 5r100 from a 4r100 i thought was close to impossible.. different wire harness, tune, shift points maybe a different PCM.. just wondering how you pulled that off..
There were no "levels"...just a few options. I installed the trans (4R100) when the truck had 80k miles. It now has 306k. Think I've changed the fluid 2x...factory cooler....and not a 6.0 cooler.

FYI. The 80k trans was still good, but the E4OD in my '97 wasn't....so I installed the 80k trans in the '97, and the '01 got the DieselSite trans.
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  #29  
Old 09-29-2017, 06:46 PM
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right i see the 5r100 TQ. how is that different??

is it a 3 disk model or different. I was thinking about upgrading the TQ going to a billet three disk model for more holding power.
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  #30  
Old 09-30-2017, 12:41 AM
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There was a write-up on doing a 6.0 TQ in a 4r100 trans a few years ago. As I recall the 6.0 TQ for the 5r110 trans has a lower stall, stronger clutch and was generally more efficient. It also required cutting 0.100" off of the crank spacer to make it fit. It was otherwise a bolt in.
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