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I have been trying to find if we have any DCT on a 13B or any rotary but I did not.
I am just fishing for some info, and how does it look like here in the RX7CLUB.COM
Maybe DCT is not the tranny for rotary or maybe its the choice to prefer.
I just found more time to start a smal project on my FD so I thought, DCT might do the job...
Please feel free to comment or link to url that might be cool with DCT and rotary.
Cheers!
Last edited by gracer7-rx7; 05-26-21 at 03:52 PM.
Reason: title
Yeah...so I can’t imagine how much it would cost to purchase, install, manage and maintain a dual-clutch for the FD. Maybe if you just have to be the first one on the block. But seems like a $500 saddle on a $50 horse.
You mid-westerners have some amusing ways to describe things
I don't think anyone on this forum has tried to swap in a DCT transmission. Some have swapped in various racing sequential transmissions but not exactly streetable...
There's company in Poland developing a bellhousing to suit a 13b to mate to a Getrag DCT - which should be able to be acquired cheap from wreckers - I understand their controller to have full sequential runs several hundred euro, no idea on the bellhousing.
Unlikely to find anybody on this mostly US site, or elsewhere running one yet I expect. One downside beyond possible less than optimum ratios or size, FD gearbox is around 44.5kg dry, the Getrag is probably heavier than the truck like tremec popular with some here....and judging by your sig, you might be into power to weight.
I thought there was already someone doing that with a DCT from an M3? Pretty sure that exists but isn't really a drop in swap from what I understand.
In any event, I think most of those boxes have their own TCU (same as an ECU but runs the transmission exclusively). Many tuners make TCU flashes for these so just about any value can be switched or tuned. With that being said, if you could get the actual fitment right so it mates to the engine properly and clears the tranny tunnel you might be in business. A custom drive shaft would for certain be required but that's an easy fix at just about any local drive shaft shop.
Ok, I hear you Sgtblue, had the same feeling when I start to plan this project but then I thought why not... maybe this $50 donkey might wake up and react like a stallion if I treat it as it.
Or at least I tried before I kill the old donkey.
Let's face it, its not a bad *** car, anymore, Yes it used to be, 20-30 years ago. Now almost any R-badge front wheeler could do the same numbers on the drag from the manufacture or even faster then the stock FD.
Conclusion, the FD is old and slow. And I am also, old and slow .....but the DCT could make me and my FD fast.
And amazingly with less noise then the other super fancy transmissions that is available on the aftermarket for this cars.
I understand and agree about the weight issue, but this is a standard street FD with some extra boost under the hood. Just to make it possible to compete on the tarmac.
The DCT I am looking at lands around 75kg and yes, that's almost 20kg to much..... but I will delete the flywheel and the clutch kit, they weight about 10kg.... so stil need to loose 10kg.
If I start to eat one meal less each day I can lose those 10kg before the FD is ready for the street.
Billyboy; Who is the company in Poland. I don't need the controller, that part is already solved inside my ECU, But maybe they have a solution that could fit the 13B (adapter plates and stuff like that).
This FD won't have more then 400whp so its not one of those go crazy projects
Who's producing the adapter and what will be the tranny of choice?
Not gonna lie...I'd drive the hell out of a dual clutch FD. I've also heard the ZF8HP is absolutely stellar as well....which is an absurd thing to say about a traditional auto. It's said to be just as fast as most dual clutches and incredibly efficient. I'll catch hell for this, but yeah, I'd love that or a dual clutch in my FD. That would make it a perfect machine.
Last edited by ItalynStylion; 07-08-20 at 10:02 PM.
The ZF keeps getting better and DCT are cool. I just don't understand why someone would go through the trouble if they only have 400whp.
At those power levels, unless you are in some competitive race where it matters, the only reason to do it is if you like the project aspect of it more than the potential outcome.
Which is fine, I do that all the time haha. But go into it with eyes open.
Who's producing the adapter and what will be the tranny of choice?
Not gonna lie...I'd drive the hell out of a dual clutch FD. I've also heard the ZF8HP is absolutely stellar as well....which is an absurd thing to say about a traditional auto. It's said to be just as fast as most dual clutches and incredibly efficient. I'll catch hell for this, but yeah, I'd love that or a dual clutch in my FD. That would make it a perfect machine.
I'm sure they're subbed out to some other company, which I have no knowledge of - rather than made by a bunch of electronic nerds - and I'd expect machined rather than cast? BMW M3/4, etc, the likely donor I guess.
The OP's intention to use it in what sounds like a street car rather than those 800hp monsters, might present problems, the DCT looks fairly fat in the guts for the stock tunnel.....I do like the sound they make when given a bit of stick, especially the Porsche version, but even the Golf sounds pretty cool.
Who's producing the adapter and what will be the tranny of choice?
Not gonna lie...I'd drive the hell out of a dual clutch FD. I've also heard the ZF8HP is absolutely stellar as well....which is an absurd thing to say about a traditional auto. It's said to be just as fast as most dual clutches and incredibly efficient. I'll catch hell for this, but yeah, I'd love that or a dual clutch in my FD. That would make it a perfect machine.
Thats exactly the way I am trying to get it..... Imagine the FD with DCT or the ZF8HP.
400whp moves more like 500whp since perfect gear shifts every time you hit the pedal to the floor.....and with the DBW TB I can make sure to move the car quick in between the stop lights.
With controled wheel spin.
I do like the crazy and wild tunned cars, makes me happy but only to look at it/them, but performance is the peak!
especially the rotary sound with the short poofs in between the shifts would feel great,
Today I found a Getrag DCT, 439km almost 275miles far away from me....maybe if possible I will try to get it.... I need to measure it first.
it might be to big and beefy.
Suggestion about any other tranny that this DCT or almost as quick as DCT are welcome here.
Sequential and dogbox are not for the street in my opinion.
The ZF keeps getting better and DCT are cool. I just don't understand why someone would go through the trouble if they only have 400whp.
At those power levels, unless you are in some competitive race where it matters, the only reason to do it is if you like the project aspect of it more than the potential outcome.
Which is fine, I do that all the time haha. But go into it with eyes open.
Honestly, it's just better. As a purist it kills me to say it....but the biggest thing keeping me from enjoying my car is the transmission. Never liked it. I had a tuned 2017 Golf R between my last FD and this one and that dual clutch was incredible. Zero gap in power delivery and it just made it enjoyable to drive all the time. Not just when tracking it, not just when the highway was open...ALL the time. It removed any hatred I had for the car when sitting in traffic or goofy low speed areas where I found myself clutching all the time. Actually kinda thinking about going back if I'm honest.
yeah, not sure about the gear ratios either; seems like a lot of spread and 1st would be almost useless other than to creep. They can handle some good torque with a modified hydraulic controller though.
This is a fun thread. While I was visiting Brian Nickel at BNR last year he had a 300ZX with a ZF 8Spd trans from a Jaguar (although commonly found in FCA products). While not a DCT, it could compete with a DCT while still working in a 300ZX TT chassis. Whether this could be adapted to an FD - Good question. Call BNR! I'm sure he'd love to talk about your use case.
I've been debating this, and he mentions the V8 DCT wont fit but there's also the 135i/335i transmission that has a top gear of 1 rather than .67 that I'm pretty sure is the same bellhousing as the M3/M4 i6. I've done the math/checked out shift points and it seems to me one of those with a ford 8.8 and a 2.73 final drive would make all 7 gears usable and net 200 rpm lower cruise @ 75 mph.
yeah, it’s shown in the gear ratio chart above and that would seem better in that regard. Supposedly shares the same bellhousing bolt up pattern as the F80/F82 version. However the output flange has a slightly smaller bolt-circle pattern than the others. I suppose that can be accounted for on the driveshaft, but I’m not clear on the rest of the wiring, electronic controllers, support mount, and such. I sent the guy a message, but no response yet.
DCT into an RX7 has been done a couple times already, seemslegitgarage has already done two apparently. The bellhousing is different between the Getrags that were fitted to I6's and V8's, you can read parts 1-3 of the DCT Bible to answer most questions you would have about the swap. The Getrags will fit into the stock trans tunnel of an FD, Beytek has already done this, granted it is attached to his K20 swap. Any custom tranny means custom engine plate adapter, custom hub adapter for the DCT shaft, and modification of the PPF for the DCT mount. Or remove the PPF and fab a tranny mount, fab a diff mount and add an engine torsion dampener to make up for the loss of torque dampening the PPF provides. Transmission control can be handled either by a GCU like an HTG or an ECU with the capability like the MaxxEcu, similar to what Beytek did. A DCT also requires a transmission cooler be added.
had a couple of people reach out to and just wanted to say thanks. The person I’m trying to reach is in the video below; his name is Neal Adderley as stated on the youtube account, and also listed on the forum as “Islander”, and lives in SC, which this is all listed on here and youtube openly. I otherwise might me more concerned about privacy, etc. and not posting it up so openly. Which I even tried not to initially just for that reason.
Also, starting about a year ago people without that particular social media account will only see a log in page. So posting a link that says, “I saw this on XYZ”, etc. might as well have posted, “I have a secret, and only people who are in our secret society club can see or know what it is”. In other words, anyone doesn’t have their mark cannot enter to buy, sell, etc. there ...
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Originally Posted by TeamRX8
Looks like this guy is a forum member, but is not mentioning this conversion kit for the F80/F82 DCT out of the BMW M3(I-6 version)/M4
Hello all. As you guys are seeing, there is now a DCT swap option for the FD. Neal Adderley (you can find him on FB or contact me for his info) has put together a kit that consists of a:
Bellhousing adapter
Input shaft coupler (and ARO bolts)
Transmission mount
Shifter mount
The DCT transmission that works with the kit is the F80/F82 BMW M4 or M3 gearbox - not the F10 or 8 cylinder gearbox, but the inline 6 one. You'll also need to source several other items including an HTC GCU (think ECU for the transmission), a driveshaft, and you will need to rewire (or send the box out to have this done) the mechatronics unit on the gearbox. You can ask to join the FB group you found and have your questions answered there.
The conversion kit is installed in about 6 or so FDs currently with good success, meaning no issues with the fit of the adapter kit and some good driving results under normal load, not WOT. That is coming soon. A few have also hooked up shift paddles with success which is what I was waiting on before pulling the trigger on the conversion this week. I am busy gathering up all the needed components and will be happy to post up videos - the condition here is I am overseas at the moment so a good buddy of mine that is car watching for me is doing the conversion and I am at his mercy and schedule.
My understanding is the benefits of the swap are almost instant, smooth shifting which should shave off some 0-60 times and then, depending on the ratio of the transmission you select, you can take advantage of 2 overdrive gears to improve gas mileage.
I had always said the FD would be perfect with a paddle shifting, DCT gearbox and now we can make this happen.
07-07-20, 08:47 PM
.....but the DCT could make me and my FD fast.
