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ZF8HP Transmission swap

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Old Mar 5, 2025 | 04:31 PM
  #381  
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Thanks. I mean the specific 3 units that you got. Post #34. It seems the Connector pin count changed at some point.
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Old Mar 5, 2025 | 04:37 PM
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From: Little Austin
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Originally Posted by gjestico
Thanks. I mean the specific 3 units that you got. Post #34. It seems the Connector pin count changed at some point.
I am not aware of any connector changes. When using TurboLamik, that doesn't matter.
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Old Mar 5, 2025 | 04:45 PM
  #383  
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The Turbolamik uses all 16 pins of the round bulkhead plug on the trans case. Some Dodge trans only have 10 pins. Just trying to confirm what year this happened, Or even if its all models (Eg Dodge Ram Jeep etc).
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Old Mar 5, 2025 | 04:51 PM
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Originally Posted by gjestico
The Turbolamik uses all 16 pins of the round bulkhead plug on the trans case. Some Dodge trans only have 10 pins. Just trying to confirm what year this happened, Or even if its all models (Eg Dodge Ram Jeep etc).
This is the first time I'm hearing about this.@TurboLamik knows.

Andrew
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Old Mar 5, 2025 | 05:03 PM
  #385  
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They should probably get that out there before some poor guy cuts up his stock TCU and finds out there is no going back....
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Old Mar 5, 2025 | 09:16 PM
  #386  
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Originally Posted by gjestico
They should probably get that out there before some poor guy cuts up his stock TCU and finds out there is no going back....
Can post a source for this information? I have never heard of this for the Dodge transmissions. Perhaps this is a concern for some other version. There are literally dozens of versions of the 8HP/45/50/55/70/790/95 etc...

Andrew
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Old Mar 5, 2025 | 09:58 PM
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Well, I looked at a 8HP70 trans from a 2022 Charger. As I examined it I saw the connector has only 10 out of 16 possible pins populated......But its a molded connector so no hope of "adding" them. I would be surprised if I am the only one to discover this.
So I am wondering what year this came to be ?
Cost cutting ?. The "company formally known as Chrysler" is infamous for this. Save 10 cents to delete 6 pins.......
I am talking this side of the planet North America where this forums' members are most likely to find such a trans....

I am not sure what the "I am not aware" and "First time" statements mean. ? Maybe you think I don't know WTF I am talking about ?

Last edited by gjestico; Mar 5, 2025 at 10:54 PM.
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Old Mar 6, 2025 | 07:24 AM
  #388  
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Originally Posted by gjestico
Well, I looked at a 8HP70 trans from a 2022 Charger. As I examined it I saw the connector has only 10 out of 16 possible pins populated......But its a molded connector so no hope of "adding" them. I would be surprised if I am the only one to discover this.
So I am wondering what year this came to be ?
Cost cutting ?. The "company formally known as Chrysler" is infamous for this. Save 10 cents to delete 6 pins.......
I am talking this side of the planet North America where this forums' members are most likely to find such a trans....

I am not sure what the "I am not aware" and "First time" statements mean. ? Maybe you think I don't know WTF I am talking about ?
Just change the connector, they are available to buy and can be re-pinned anyway.
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Old Mar 6, 2025 | 09:57 AM
  #389  
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I am referring to the connector that is part of the transmission internal TCU unit and protrudes from the trans case. It is a molded unit and has no provision for any additional pins.
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Old Mar 6, 2025 | 11:10 AM
  #390  
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Originally Posted by gjestico
I am referring to the connector that is part of the transmission internal TCU unit and protrudes from the trans case. It is a molded unit and has no provision for any additional pins.
Interesting, Perhaps a picture is needed then, as every single 8HP i have seen follows the same configuration ( and I flashed quite a few) but only BMW or JAG
There are 'some' pins that could be surplus, certainly is for the CANBUS connection units (like CANTCU)
https://wiki.canformance.net/lib/exe...hp_pinouts.pdf

You can check the other pins here
https://manual.turbolamik.eu/Mechatronic.html
https://www.maxxecu.com/webhelp/adva...formation.html
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Old Mar 6, 2025 | 01:01 PM
  #391  
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It would help if Turbolamik USA posted here about this ; Since it would directly affect their controller. I would think they would have encountered this long before I.
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Old Mar 6, 2025 | 01:37 PM
  #392  
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I looked up part number for the control unit. And it is the same for charger and challenger from 15 to 22...
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Old Mar 6, 2025 | 02:05 PM
  #393  
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I *Think* the factory Dodge Charger wiring only uses 6 or 7 pins. Maybe other models use more ?
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Old Mar 6, 2025 | 09:09 PM
  #394  
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Originally Posted by runpasthefence
What kind of mileage are y'all seeing on these $500-600 transmissions? The only ones in my area that are that cheap are 100k-ish mile police take-outs. I've been looking for one with 50k or less, but it looks like that's going to run me $1500 or more. Not terrible, but that's pushing this project into the $6k range with the other costs.
just want to throw some info out there. Our police fleet is mostly v8 Chargers (over 200 cars). Most stay in the fleet for 125k miles (12-15k hours - many cars are in use 24 hours a day/2shifts) and our agency has a chase policy. We are very, very, very aggressive with our cars, WOT dozens of times daily and we have not once (you read it correctly) replaced an 8HP. We have replaced many charger motors but not had a single issue of any kind, ever, with an 8HP trans. In fact we don’t even do basic trans or trans fluid services on them before we retire them. I’m not exaggerating in the least! They are very robust.

Meanwhile we’re doing ford and Chevy transmissions fairly regularly.

Seeing this durability day in and day out combined with the phenomenal shifts and drivability made me want an 8HP years ago. I couldn’t ever figure out how to mate it to an LS for a street project that wouldn’t break the bank. I actually stopped looking/research it it in 2022 and out of pure curiosity I did another search and found this thread. Incredible. This thread has me so excited again after many years of eagerness and then “giving up”.
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Old Mar 7, 2025 | 04:41 AM
  #395  
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Johnathan_ed3,
great insight on these trannys. Does this carry over for the 8HP70/80/90s?

Andrew did a great thing shining the light on these trannys. Too bad I had a 4L80E rebuilt a little over a year ago. 😞
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Old Mar 7, 2025 | 05:23 AM
  #396  
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Originally Posted by jonathan_ed3
just want to throw some info out there. Our police fleet is mostly v8 Chargers (over 200 cars). Most stay in the fleet for 125k miles (12-15k hours - many cars are in use 24 hours a day/2shifts) and our agency has a chase policy. We are very, very, very aggressive with our cars, WOT dozens of times daily and we have not once (you read it correctly) replaced an 8HP. We have replaced many charger motors but not had a single issue of any kind, ever, with an 8HP trans. In fact we don’t even do basic trans or trans fluid services on them before we retire them. I’m not exaggerating in the least! They are very robust.

Meanwhile we’re doing ford and Chevy transmissions fairly regularly.

Seeing this durability day in and day out combined with the phenomenal shifts and drivability made me want an 8HP years ago. I couldn’t ever figure out how to mate it to an LS for a street project that wouldn’t break the bank. I actually stopped looking/research it it in 2022 and out of pure curiosity I did another search and found this thread. Incredible. This thread has me so excited again after many years of eagerness and then “giving up”.
One of the most cost effective conversions for LS to 8HP70 would be from a gearbox from Jaguar 3.0D (the 2.2 also used a 8HP70, but slightly different bellhousing so not 100%) with a PMC adapter kit.
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Old Mar 7, 2025 | 06:22 PM
  #397  
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I literally just got back from a 3hr round trip. Picked up a 2021 5.7l charger 8hp70 with 29k miles for $900. This one is going in my 1995 chevy obs pick up build with the CanTcu. The other is for my twin turbo chevelle and using Turbolamik





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Old Mar 8, 2025 | 01:41 PM
  #398  
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Originally Posted by jonathan_ed3
just want to throw some info out there. Our police fleet is mostly v8 Chargers (over 200 cars). Most stay in the fleet for 125k miles (12-15k hours - many cars are in use 24 hours a day/2shifts) and our agency has a chase policy. We are very, very, very aggressive with our cars, WOT dozens of times daily and we have not once (you read it correctly) replaced an 8HP. We have replaced many charger motors but not had a single issue of any kind, ever, with an 8HP trans. In fact we don’t even do basic trans or trans fluid services on them before we retire them. I’m not exaggerating in the least! They are very robust.

Meanwhile we’re doing ford and Chevy transmissions fairly regularly.

Seeing this durability day in and day out combined with the phenomenal shifts and drivability made me want an 8HP years ago. I couldn’t ever figure out how to mate it to an LS for a street project that wouldn’t break the bank. I actually stopped looking/research it it in 2022 and out of pure curiosity I did another search and found this thread. Incredible. This thread has me so excited again after many years of eagerness and then “giving up”.
Tell us a little bit about your project. What engine management system are you using?

Andrew
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Old Mar 8, 2025 | 06:44 PM
  #399  
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Originally Posted by rkupon1
I literally just got back from a 3hr round trip. Picked up a 2021 5.7l charger 8hp70 with 29k miles for $900. This one is going in my 1995 chevy obs pick up build with the CanTcu. The other is for my twin turbo chevelle and using Turbolamik





close to the Jaguar, even the Converter is similar
A 8hp70 is exactly that though, so GL with your conversion bro
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Old Mar 8, 2025 | 09:31 PM
  #400  
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rkupon1 :

Interested in your experience with both controllers and why you would go with one or the other ?
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