***Topgunz ROTREX C38R Supercharger Kit***

secondnissan

To those of you with either kit, what have you done to beef up the automatic transmission? Are you limiting power to a certain level? I want this kit but not sure what to do with the transmission. Not interested in level 10 . I want input from actual owners. Thanks

14Q60awdSPORT

Besides a trans cooler and an ATF to coolant heat exchanger, nothing at the moment. Running 11psi on E40 at the moment. Holding fine for now.

Debating on my options, if your end goal isn't over 600whp then the VR30 trans swap is a great option.

https://www.godzillaraceworks.com/te...ur-zg-platform

they can make it pretty much a plug and play direct swap over.

DarkJak

Is that the stock heat exchanger in the radiator you are talking about, or an additional atf to coolant one you added outside the radiator, on top of the trans cooler. How large a trans cooler?

I've been caught waiting on HTG to make DTC tuning more approachable, and in the meantime, unsure if I would hate myself for getting this kit installed and running, and potentially overheating, overtaxing my 7AT at the track.

EDIT: VR30 trans swap is tempting in the meantime, but would be a lot of extra money and effort if I end up being able to DCT swap later this year.

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14Q60awdSPORT

Custom external heat exchanger setup. Not the radiator one, although that is still in use.

Trans Cooler is relatively small. IIRC 2”x5”x12” 10 row with 4 44cfm fans on a thermostat switch, also have a thermostat fluid control valve to mostly bypass the cooler until warm.

There is no real heat exchanger/ warmer like in a lot of cars including newer Q50/Q60. The sliver in the rad does basically nothing. If you monitor trans temps they take forever to warmup in normal driving. My setup has drastically improved trans warm up time.

I wouldn’t hold my breath on DTC swap. I was under the impression it was a lot more work to DTC swap an auto then it is for an MT and the DTC swaps being worked on are for MT cars. But maybe things have changed.

rspray2000

I just got their aluminum driveshaft for the swap, but am likely holding on that build until I put the Roadster away for fall this year. They were great to deal with and very responsive over email. Still waiting on my Vortech Si impeller upgrade and I don’t want to sacrifice any warm weather driving due to build/tune not being complete.