Hi Forum Members,
I like to tell something about a project that I have started in the German Skyline Forum. I believe that there could be interest here, for what I do there? Maybe for those, who are interested to upgrade their A/T to a much higher power potential?
BUT PLEASE: To prevent misunderstandings. I do not want to sell or trade anything. I only like to inform what I am doing in another Forum. If you like to give feedback to this thread , it is only expressing interest in the matter. If someone here like to pick up the idea, this is something different of course. That would be welcome. But again I do not offer anything here, but just explain about a project in another Forum.
The idea why I started the project there is very simple. There are rumors that the A/T from our skylines can handle nothing else in power from stock to 400 HP. I have seen some threads speaking about shift kits, solenoid and pressure plug techniques to get the A/T working better. But nothing to make the trans able to really handle an engine with higher ratings in HP. I also read some threads, where owners have changed their A/T with a R04R03A trans. The reason was that this A/T is called to be stronger as the ones in the Skylines. But I do not believe in this, as the case and internal parts are close to 100% the same.
So I began to search the internet for anything that could tell me something how to do a upgrade to the A/T. The results have been very few for a while. And the more data I found, it have been confusing sometimes. I have sent enquiries to several suppliers of parts for our A/T´s and got some information back here and there. But mostly the reaction was: "We cannot help because we do not know enough about these A/T´s".
But I got some data that is helpful for those who are interested to know what A/T actually is inside the Skylines. In the R32/33 the A/T is named R04R01A and in the R34 it is named R04R01B. The differences are mostly based on the Tiptronic function of the R04R01B, which you find in the R34 Skylines. Therefore the "B" has a different valve body and some few other parts differ, too. But the main internal parts are the same.
The next step was to find suppliers, that could offer parts with high performance in mind. This is the hard work in this. It is not easy to find suppliers that deliver High Performance parts, if most of them do not even have knowledge about the standard parts. But I got some success in the meantime.
I have found one supplier in Down Under who is very well known there for really excellent working upgrades on R32-34 A/T´s. Skyline owners that have modified their A/T´s with the parts of this supplier have posted Dyno results easy up to 400 Rear Wheel kW. And finally I got also data what can be done, or better what a upgraded A/T can handle. And more what is to be expected in power rating at the rear wheels. The following figures I got:
The A/T with all needed upgrades can handle easily 400 kW, which is about 540 HP. This is for all engines that are mounted to the A/T´s of the R32 to R34. Additional, but cost effective modifications, can bring up more potential. But this is not what I am looking for, as the normal functions of the A/T should remain.
Based on a 400 kW (~540 HP) engine a R32/33 would read 320 kW (~435 HP) at the rear wheels.
Based on a 400 kW (~540 HP) engine a R34 would read 350 kW (~475 HP) at the rear wheels.
I think these numbers are very interesting for most owners of Skylines with A/T´s. For me this is a basis that I have not expected. But I would be happy to have such a A/T in my Skyline.
With the modification of the A/T comes faster and firmer shifts. Much stronger holding power for the second gear. Higher stall speed to get the engine potential to the wheels and internal parts that should hold up much longer as standards parts. Due the modifications also the temperature of the oil would be less, as less slippery shifts lower the loads to the internal parts. But a extra A/T oil cooler is recommended anyway. Last but not least, the A/T would be more or less like new.
The only disadvantage is the fact that the valve bodies and eventually the torque converters must be shipped to the supplier for modification. And to ship to and from Down Under is not a cheap matter.
The next step was, to ask in the German Skyline Forum who eventually would be interested in a group buy for parts to get a bulletproof A/T. Not to get owners telling me, yes I buy (without knowing what the costs will be), but to find out how many would be interested in such a project.
There are now four owners, myself included, who said yes, that is something I would like to get. And after I have talked to the supplier, who can deliver everything for that, I know that there are rebates possible from him. And more there are costs savings possible by combining shipping to and from Down Under. He will provide to me data and prizes for the different models of Skylines (hopefully in short time).
I don´t know if owners of A/T Skylines here would be interested in such a project, but if so I would be happy to share every information I have or will get. It would be interesting for me, what the A/T Skyline owners here think about modifying the A/T´s like that.
But again, please do not take this wrong. I do not want to sell anything, nor trade or offer any service. The only thing I can do is sharing what I have or will have as information. And that is for free of course.
Greets
Dan
I like to tell something about a project that I have started in the German Skyline Forum. I believe that there could be interest here, for what I do there? Maybe for those, who are interested to upgrade their A/T to a much higher power potential?
BUT PLEASE: To prevent misunderstandings. I do not want to sell or trade anything. I only like to inform what I am doing in another Forum. If you like to give feedback to this thread , it is only expressing interest in the matter. If someone here like to pick up the idea, this is something different of course. That would be welcome. But again I do not offer anything here, but just explain about a project in another Forum.
The idea why I started the project there is very simple. There are rumors that the A/T from our skylines can handle nothing else in power from stock to 400 HP. I have seen some threads speaking about shift kits, solenoid and pressure plug techniques to get the A/T working better. But nothing to make the trans able to really handle an engine with higher ratings in HP. I also read some threads, where owners have changed their A/T with a R04R03A trans. The reason was that this A/T is called to be stronger as the ones in the Skylines. But I do not believe in this, as the case and internal parts are close to 100% the same.
So I began to search the internet for anything that could tell me something how to do a upgrade to the A/T. The results have been very few for a while. And the more data I found, it have been confusing sometimes. I have sent enquiries to several suppliers of parts for our A/T´s and got some information back here and there. But mostly the reaction was: "We cannot help because we do not know enough about these A/T´s".
But I got some data that is helpful for those who are interested to know what A/T actually is inside the Skylines. In the R32/33 the A/T is named R04R01A and in the R34 it is named R04R01B. The differences are mostly based on the Tiptronic function of the R04R01B, which you find in the R34 Skylines. Therefore the "B" has a different valve body and some few other parts differ, too. But the main internal parts are the same.
The next step was to find suppliers, that could offer parts with high performance in mind. This is the hard work in this. It is not easy to find suppliers that deliver High Performance parts, if most of them do not even have knowledge about the standard parts. But I got some success in the meantime.
I have found one supplier in Down Under who is very well known there for really excellent working upgrades on R32-34 A/T´s. Skyline owners that have modified their A/T´s with the parts of this supplier have posted Dyno results easy up to 400 Rear Wheel kW. And finally I got also data what can be done, or better what a upgraded A/T can handle. And more what is to be expected in power rating at the rear wheels. The following figures I got:
The A/T with all needed upgrades can handle easily 400 kW, which is about 540 HP. This is for all engines that are mounted to the A/T´s of the R32 to R34. Additional, but cost effective modifications, can bring up more potential. But this is not what I am looking for, as the normal functions of the A/T should remain.
Based on a 400 kW (~540 HP) engine a R32/33 would read 320 kW (~435 HP) at the rear wheels.
Based on a 400 kW (~540 HP) engine a R34 would read 350 kW (~475 HP) at the rear wheels.
I think these numbers are very interesting for most owners of Skylines with A/T´s. For me this is a basis that I have not expected. But I would be happy to have such a A/T in my Skyline.
With the modification of the A/T comes faster and firmer shifts. Much stronger holding power for the second gear. Higher stall speed to get the engine potential to the wheels and internal parts that should hold up much longer as standards parts. Due the modifications also the temperature of the oil would be less, as less slippery shifts lower the loads to the internal parts. But a extra A/T oil cooler is recommended anyway. Last but not least, the A/T would be more or less like new.
The only disadvantage is the fact that the valve bodies and eventually the torque converters must be shipped to the supplier for modification. And to ship to and from Down Under is not a cheap matter.
The next step was, to ask in the German Skyline Forum who eventually would be interested in a group buy for parts to get a bulletproof A/T. Not to get owners telling me, yes I buy (without knowing what the costs will be), but to find out how many would be interested in such a project.
There are now four owners, myself included, who said yes, that is something I would like to get. And after I have talked to the supplier, who can deliver everything for that, I know that there are rebates possible from him. And more there are costs savings possible by combining shipping to and from Down Under. He will provide to me data and prizes for the different models of Skylines (hopefully in short time).
I don´t know if owners of A/T Skylines here would be interested in such a project, but if so I would be happy to share every information I have or will get. It would be interesting for me, what the A/T Skyline owners here think about modifying the A/T´s like that.
But again, please do not take this wrong. I do not want to sell anything, nor trade or offer any service. The only thing I can do is sharing what I have or will have as information. And that is for free of course.
Greets
Dan
