Topgunz ROTREX C38R Supercharger Kit

SwedeZ · 08-20-2021, 07:19 AM

Quote:

Originally Posted by Geeoo

Anyone in the process of installing the kit?

Still waiting for my kit to arrive (overseas shipping). Not even sure if it has been shipped out yet.

Super afraid of potential damage to the kit during transport. I'm never lucky on that account. Have had so much stuff damaged in the past when ordering component from abroad (mostly things like exhausts and intercoolers for previous car ownerships).

MidwesternZ · 08-24-2021, 09:46 PM

I just finished installing mine. Working on getting an appointment for a tune.

MidwesternZ · 08-24-2021, 09:49 PM

Quote:

Originally Posted by takemorepills

Is anyone getting the Rotrex kit for a 7AT and running moderate power gains?

I'm looking to see the outcome of a kit that is installed on a 7AT car, tuned primarily for 91, runs full air intake filter and will be daily driven.

I know most people getting this kit will be installing it on upgraded 6MT cars and going all-out (jealous!) but I am hoping that someone is going for a more restrained approach on a 7AT car that I can follow.

I have mine installed on a 7AT. Just finished and working on tuning.

rspray2000 · 08-24-2021, 10:18 PM

Quote:

Originally Posted by MidwesternZ

I have mine installed on a 7AT. Just finished and working on tuning.

Do keep us posted, please. Next year is my make / break for whether I pursue the VR 7AT swap, or stay stock with upgraded flex plate. Good luck!

Geeo · 08-29-2021, 05:12 AM

My kit is fully installed, and began tuning with Eugene. Big shoutout to Eugene for helping us out in the late hours to get the first tune running. There is some more content on my ig, here are some clips of the Rotrex kit.

https://www.instagram.com/p/CTJx9pPn...dium=copy_link

Sent from my iPhone using Tapatalk

FX-32 · 09-08-2021, 02:18 PM

Quote:

Originally Posted by Geeo

My kit is fully installed, and began tuning with Eugene. Big shoutout to Eugene for helping us out in the late hours to get the first tune running. There is some more content on my ig, here are some clips of the Rotrex kit.

https://www.instagram.com/p/CTJx9pPn...dium=copy_link

Sent from my iPhone using Tapatalk

So, how does it feel? Anything else pending like oil cooler?
What exhaust configuration do you have (any headers?)?

FrankEtier · 09-08-2021, 05:41 PM

Quote:

Originally Posted by MidwesternZ

I have mine installed on a 7AT. Just finished and working on tuning.

You get yours going? I’m 90% complete with install on mine also on 7AT.

Birdiev · 09-10-2021, 12:17 AM

I hit 464 whp and 406 torque on pump at 9.5 psi
535 whp/463 torque on e60 and 9.5 psi
692 who/533 torque on e60 and 15 psi
Graph if off a bit because my intake pipe blew off and I was in a rush to pick up my son from school but will be going back in a couple of weeks as my tuner is going on vacation and I want to run on full e85. Slight misfire up too still had the oem spark plugs

TopgunZ · 09-10-2021, 08:34 AM

Quote:

Originally Posted by Birdiev

I hit 464 whp and 406 torque on pump at 9.5 psi
535 whp/463 torque on e60 and 9.5 psi
692 who/533 torque on e60 and 15 psi
Graph if off a bit because my intake pipe blew off and I was in a rush to pick up my son from school but will be going back in a couple of weeks as my tuner is going on vacation and I want to run on full e85. Slight misfire up too still had the oem spark plugs

Whooop! For the first guy to throw out some numbers, finally guys can see how efficient this Rotrex blower is. These are all SC records, especially with a filter on. Plus you havent even taken it to its potential. Full E85 will get you more power, it made peak power right before the coupler blew off, meaning there was some left on the table, and this was SAE!

What will a built block and 20psi look like?

Can you do me a favor and email me the graph in STD? topgunspeedworks@gmail.com

Nice build!

FX-32 · 09-10-2021, 08:44 AM

Wow it's absolutely impressive, awesome G37 right there.
It's a torque monster as well. It blows my mind thinking about all it's potential right here on this kit.

VHRpurr · 09-10-2021, 08:52 AM

Woah….. has me reevaluating my turbo setup choice…… Any chance you got some vids you could post? You know we gotta hear that spooly boi noises and pshhhhhhhhhhhhhhhhhhhhh

TopgunZ · 09-10-2021, 08:58 AM

Quote:

Originally Posted by VHRpurr

Woah….. has me reevaluating my turbo setup choice…… Any chance you got some vids you could post? You know we gotta hear that spooly boi noises and pshhhhhhhhhhhhhhhhhhhhh

Im working on it. There are some things in play that will highlight the kit with media. I am just waiting.

Think built motor, huge shop, professional photography. Should be ready in a couple of weeks.

I did get feedback that the Rotrex's spool sounds unbelievable. Just a lot of guys are still in the remote tuning process with even more guys in the install process and a lot of guys waiting for kits. I have shipped 8 kits this week alone.

14Q60awdSPORT · 09-10-2021, 12:50 PM

@TopgunZ
Looking at those dyno graphs, running 9.5psi hitting peak 400wtq around 5500rpm but falling off to about 320wtq redline, for those of us on stock AT / stock block wanting to limit peak torque to under 400wtq but flatline / hold onto that torque till redline to still have a good 500+whp top end.

Can the mac solenoid / ecutek do boost by rpm?

Or are there / will there be different pulley options for limiting low/mid range boost but having some top end still?

ByThaBay · 09-10-2021, 01:03 PM

Quote:

Originally Posted by 14Q60awdSPORT

@TopgunZ
Looking at those dyno graphs, running 9.5psi hitting peak 400wtq around 5500rpm but falling off to about 320wtq redline, for those of us on stock AT / stock block wanting to limit peak torque to under 400wtq but flatline / hold onto that torque till redline to still have a good 500+whp top end.

Can the mac solenoid / ecutek do boost by rpm?

Or are there / will there be different pulley options for limiting low/mid range boost but having some top end still?

Yes, we are doing this using the built in ecutek boost control.

Birdiev · 09-10-2021, 02:16 PM

https://youtu.be/AzUHehiSufY

08-24-2021, 09:46 PM	#257 (permalink)
MidwesternZ Base Member Join Date: Aug 2020 Location: Texas Posts: 19 Drives: 2015 Nissan 370Z Rep Power: 5	I just finished installing mine. Working on getting an appointment for a tune. drahmin and SwedeZ like this.

08-29-2021, 05:12 AM	#260 (permalink)
Geeo Base Member Join Date: Nov 2019 Location: Az Posts: 2 Drives: 11 Nissan 370Z M6 Rep Power: 6	My kit is fully installed, and began tuning with Eugene. Big shoutout to Eugene for helping us out in the late hours to get the first tune running. There is some more content on my ig, here are some clips of the Rotrex kit. https://www.instagram.com/p/CTJx9pPn...dium=copy_link Sent from my iPhone using Tapatalk Elmo370z, Ghostvette, alecp2016 and 4 others like this.

09-10-2021, 02:16 PM	#270 (permalink)
Birdiev Base Member Join Date: Nov 2020 Location: Texas Posts: 21 Drives: G37 Rep Power: 5	https://youtu.be/AzUHehiSufY Last edited by Birdiev; 12-18-2021 at 02:07 AM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
New Rotrex C38R Supercharger	R3drckt09	Forced Induction	145	02-05-2023 09:37 AM
rotrex c38r spec sheet	tiller	Forced Induction	11	09-13-2018 12:57 PM
Rotrex C38R & are HR/VHR GTM SC mounting brackets the same?	SS_Firehawk	Engine & Drivetrain	6	02-09-2018 11:33 PM
Replacement Rotrex Supercharger for the GTM Stage 1 kit	wind.zero	Forced Induction	29	06-03-2014 07:20 AM
[FOR SALE] Rotrex C38-81 Supercharger Only	pokeyl	Parts for sale (Private Classifieds)	3	02-17-2014 10:07 AM

09-10-2021, 08:44 AM	#265 (permalink)
FX-32 Base Member Join Date: Apr 2021 Location: ATL Posts: 21 Drives: G37s Coupe 6MT ACE Rep Power: 3359	Wow it's absolutely impressive, awesome G37 right there. It's a torque monster as well. It blows my mind thinking about all it's potential right here on this kit.

09-10-2021, 08:52 AM	#266 (permalink)
VHRpurr Base Member Join Date: Dec 2019 Location: Northlake, TX Posts: 75 Drives: 16 NISMO 370Z M6 Rep Power: 6	Woah….. has me reevaluating my turbo setup choice…… Any chance you got some vids you could post? You know we gotta hear that spooly boi noises and pshhhhhhhhhhhhhhhhhhhhh

09-10-2021, 12:50 PM	#268 (permalink)
14Q60awdSPORT Base Member Join Date: May 2021 Location: washington Posts: 58 Drives: 14 Q60 awd SPORT Rep Power: 3359	@TopgunZ Looking at those dyno graphs, running 9.5psi hitting peak 400wtq around 5500rpm but falling off to about 320wtq redline, for those of us on stock AT / stock block wanting to limit peak torque to under 400wtq but flatline / hold onto that torque till redline to still have a good 500+whp top end. Can the mac solenoid / ecutek do boost by rpm? Or are there / will there be different pulley options for limiting low/mid range boost but having some top end still?

***Topgunz ROTREX C38R Supercharger Kit***

Topgunz ROTREX C38R Supercharger Kit