The 2020 370z needs a DCT

Hotrodz · 01-27-2021, 06:09 PM

Also if there is any weight gain it is in one of the best spots low and mid carish.

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DarkJak · 01-27-2021, 10:02 PM

Classification of DCT swaps have been getting controversial and with a few folks jumping on the DCT wagon in time attack, I expect it to be the hot topic of 2021.

I'll be swapping out the 7AT so hoping for pretty minimal weight gain.

AlWakRa · 01-28-2021, 02:01 PM

I saw the progress yesterday on Sebastian account and I got excited for it, very very interested in this project, as much as I like the stick at the track, but if I wanted to chase times, this will be my choice, looks like I need to save from now

phunk · 02-01-2021, 03:24 AM

Car has been driven. Seb has it performing shift cut too, which is great.. it cuts off power momentarily while alternating clutch packs. This was a feature I thought might take longer to get dialed in but he had it working first time out. Seb sounded really excited about it when I talked to him today, and said it makes the car so much nicer to drive around, and he expects he will drive the car a lot more often now. There are a couple small quirks he wants to work out and then he will have videos to share.

jchammond · 02-01-2021, 03:48 AM

Quote:

Originally Posted by phunk

Car has been driven. Seb has it performing shift cut too, which is great.. it cuts off power momentarily while alternating clutch packs. This was a feature I thought might take longer to get dialed in but he had it working first time out. Seb sounded really excited about it when I talked to him today, and said it makes the car so much nicer to drive around, and he expects he will drive the car a lot more often now. There are a couple small quirks he wants to work out and then he will have videos to share.

Will this transmission solely be a replacement for the manual?
Or potentially an option for the A/T guy’s as well?

redondoaveb · 02-01-2021, 09:21 AM

Quote:

Originally Posted by jchammond

Will this transmission solely be a replacement for the manual?
Or potentially an option for the A/T guy’s as well?

It'll be an option for the A/T guys too. I asked Seb that when I talked to him the other day.

takemorepills · 02-01-2021, 09:05 PM

Quote:

Originally Posted by phunk

Car has been driven. Seb has it performing shift cut too, which is great.. it cuts off power momentarily while alternating clutch packs. This was a feature I thought might take longer to get dialed in but he had it working first time out. Seb sounded really excited about it when I talked to him today, and said it makes the car so much nicer to drive around, and he expects he will drive the car a lot more often now. There are a couple small quirks he wants to work out and then he will have videos to share.

Does it cause the car to "fart"? Most cars with these trans will make a distinct "fart" sound during the engine cut, my 2016 GTI DSG would do it and I really liked it!
It was called "DSG Farts" in the VW/Audi community.

phunk · 02-02-2021, 02:26 PM

Quote:

Originally Posted by takemorepills

Does it cause the car to "fart"? Most cars with these trans will make a distinct "fart" sound during the engine cut, my 2016 GTI DSG would do it and I really liked it!
It was called "DSG Farts" in the VW/Audi community.

Seb said you can hear it, but he has not yet described the sound

redondoaveb · 02-02-2021, 07:15 PM

Quote:

Originally Posted by phunk

Seb said you can hear it, but he has not yet described the sound

There's a mexican food restaurant close to Specialty Z. It may not have been the transmission.

Elmo370z · 02-01-2021, 12:15 PM

See if you can go for a ride, then take a video.

Hotrodz · 02-01-2021, 03:39 PM

Quote:

Originally Posted by Elmo370z

See if you can go for a ride, then take a video.

I'm headed there on Saturday so I am hoping to get a little first person action.

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Martijn_b · 02-02-2021, 06:44 PM

Very exciting! I have a DCT in my E90 M3, and thank god it doesnt fart.

Sent from my SM-G973F using Tapatalk

DarkJak · 02-06-2021, 06:14 PM

I'm hoping for a driveshaft option for us 7AT guys too, just to eliminate one more thing to figure out.

What are your thoughts on transmission cooling? I have a 25 row on the current 7AT. Sufficient for the DCT even at higher power levels at the track?

phunk · 02-06-2021, 06:36 PM

Quote:

Originally Posted by DarkJak

I'm hoping for a driveshaft option for us 7AT guys too, just to eliminate one more thing to figure out.

What are your thoughts on transmission cooling? I have a 25 row on the current 7AT. Sufficient for the DCT even at higher power levels at the track?

a 7AT would use the same driveshaft since it has the same differential case and pinion flange. The only thing that may be different about the 7AT car install is going to be on the electronics side. There will likely be some different DTC codes than the manual car, and the way the gear position indicator in the cluster is wired is very different. But as far as physical installation of the trans, it should be identical.

For cooling, I dont have any good answers for that since we haven't used the trans for anything other than driving around on the street for a total of maybe 45 min so far!

Seb was going into high power with it today, and still loves it. He does unfortunately need to tear it down and go inside the electronics on the side of the trans to make an electrical repair where the transmissions previous owner's wiring is causing an intermittent short that is blowing the TCM fuse randomly. He bought the trans from someone who was swapping it into another car, and had already performed the internal wiring. Apparently they didnt do a very good job so hes going to have to go in. Good for experience at least.

phunk · 02-07-2021, 11:26 PM

Welp, he has already removed the trans, located the wiring short, and repaired it. He plans to put the trans back in and be back on the road for more testing this week. He’s just letting it sit a day or two for the epoxy that is sealing the wiring to settle.

It’s possible that this might be finished in it’s minimalist form. Then we can look into cool finishing touches. I am dying to see some video of shifting under high throttle.

01-27-2021, 06:09 PM	#1 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684386	Also if there is any weight gain it is in one of the best spots low and mid carish. Sent from my SM-G965U using Tapatalk __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

01-27-2021, 10:02 PM	#2 (permalink)
DarkJak A True Z Fanatic Join Date: Jun 2011 Location: Madison, WI Posts: 1,397 Drives: 2009 370Z Rep Power: 16806	Classification of DCT swaps have been getting controversial and with a few folks jumping on the DCT wagon in time attack, I expect it to be the hot topic of 2021. I'll be swapping out the 7AT so hoping for pretty minimal weight gain. __________________ @stupidtoycars \| My track vids 09 7AT\|MCS 2WNR\|Topgunz Rotrex\|Ecutek (Eugene)\|Maxxis RC1\|Titan-7 TS-5\|OSG LSD\|Rear Mount Derale Oil Cooler (WIP)+25 Trans Cooler\|Fismo\|G-LOC R12/R10\|Zeta III L\|NLR Wing and Splitter\|CJM Pan and Fuel Hat\|Radium Surge Tank\|AP Racing CP9668

01-28-2021, 02:01 PM	#3 (permalink)
AlWakRa Track Member Join Date: Oct 2010 Location: Qatar Posts: 600 Drives: 10 370Z PW 6MT Rep Power: 13451	I saw the progress yesterday on Sebastian account and I got excited for it, very very interested in this project, as much as I like the stick at the track, but if I wanted to chase times, this will be my choice, looks like I need to save from now __________________ 2010 370Z Touring Sport Pearl White 6MT Powered by: Fast Intentions - Motordyne - Stillen - OS Giken - CJ Motorsports - Mishimoto - MCA Suspension - SPL - SuperPRO - RJM - Z1 Motorsport - Zspeed - Volk My Humble Journals Last edited by AlWakRa; 01-28-2021 at 02:03 PM.

02-01-2021, 03:24 AM	#4 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	Car has been driven. Seb has it performing shift cut too, which is great.. it cuts off power momentarily while alternating clutch packs. This was a feature I thought might take longer to get dialed in but he had it working first time out. Seb sounded really excited about it when I talked to him today, and said it makes the car so much nicer to drive around, and he expects he will drive the car a lot more often now. There are a couple small quirks he wants to work out and then he will have videos to share. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

02-02-2021, 06:44 PM	#12 (permalink)
Martijn_b Enthusiast Member Join Date: Jan 2018 Location: Netherlands Posts: 280 Drives: 2010 370z MB 6MT Rep Power: 3788	Very exciting! I have a DCT in my E90 M3, and thank god it doesnt fart. Sent from my SM-G973F using Tapatalk __________________ Instagram: Boosted_Fairlady

02-01-2021, 12:15 PM	#10 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	See if you can go for a ride, then take a video.

02-06-2021, 06:14 PM	#13 (permalink)
DarkJak A True Z Fanatic Join Date: Jun 2011 Location: Madison, WI Posts: 1,397 Drives: 2009 370Z Rep Power: 16806	I'm hoping for a driveshaft option for us 7AT guys too, just to eliminate one more thing to figure out. What are your thoughts on transmission cooling? I have a 25 row on the current 7AT. Sufficient for the DCT even at higher power levels at the track? __________________ @stupidtoycars \| My track vids 09 7AT\|MCS 2WNR\|Topgunz Rotrex\|Ecutek (Eugene)\|Maxxis RC1\|Titan-7 TS-5\|OSG LSD\|Rear Mount Derale Oil Cooler (WIP)+25 Trans Cooler\|Fismo\|G-LOC R12/R10\|Zeta III L\|NLR Wing and Splitter\|CJM Pan and Fuel Hat\|Radium Surge Tank\|AP Racing CP9668

02-07-2021, 11:26 PM	#15 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	Welp, he has already removed the trans, located the wiring short, and repaired it. He plans to put the trans back in and be back on the road for more testing this week. He’s just letting it sit a day or two for the epoxy that is sealing the wiring to settle. It’s possible that this might be finished in it’s minimalist form. Then we can look into cool finishing touches. I am dying to see some video of shifting under high throttle. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

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