Topgunz ROTREX C38R Supercharger Kit

VHRpurr · 10-30-2021, 05:29 PM

Whoever owns this TG C38R G37 car… Good work sir.. siiiick. https://youtu.be/AzUHehiSufY

TopgunZ · 10-31-2021, 09:23 AM

Quote:

Originally Posted by VHRpurr

Whoever owns this TG C38R G37 car… Good work sir.. siiiick. https://youtu.be/AzUHehiSufY

Yes, very well done video and great build. Hopefully you run across that same turbo Z you raced before in your comments. But I'm sure he will know your boosted now. No way of hiding that...lol..

Loving these flat torque curves!

Birdiev · 10-31-2021, 03:55 PM

Quote:

Originally Posted by TopgunZ

Yes, very well done video and great build. Hopefully you run across that same turbo Z you raced before in your comments. But I'm sure he will know your boosted now. No way of hiding that...lol..

Loving these flat torque curves!

Funny thing is I actually won as difficult as that sounds. we did three runs. As soon as we got on it I would start to pull away. When I was about 3 or 4 cars ahead that 370 turned into a rocket . I thought that car was literally going to blow my doors off.He made it to about the back of my door until he shifted and then I started to pull again. Then again rocket time for him but to my back bumper. Every time he shifted I would pull but that car sounded like a monster catching up.

Not sure if that was turbo lag or too big of a turbo ,and yes he got the hit on one because I wanted to make sure.

That's when I knew supercharger was the way to go because I was enhancing what I already had.

I've always thought the driver with the best start or launch will have the advantage.As it then becomes a catch up game depending on power levels. power curve has alot to do with it as well.

This supercharger is INSTANT power as soon as you get on the throttle. No regrets with this kit.

TopgunZ · 10-31-2021, 10:13 PM

Quote:

Originally Posted by Birdiev

Funny thing is I actually won as difficult as that sounds. we did three runs. As soon as we got on it I would start to pull away. When I was about 3 or 4 cars ahead that 370 turned into a rocket . I thought that car was literally going to blow my doors off.He made it to about the back of my door until he shifted and then I started to pull again. Then again rocket time for him but to my back bumper. Every time he shifted I would pull but that car sounded like a monster catching up.

Not sure if that was turbo lag or too big of a turbo ,and yes he got the hit on one because I wanted to make sure.

That's when I knew supercharger was the way to go because I was enhancing what I already had.

I've always thought the driver with the best start or launch will have the advantage.As it then becomes a catch up game depending on power levels. power curve has alot to do with it as well.

This supercharger is INSTANT power as soon as you get on the throttle. No regrets with this kit.

Sounds like if you come across him now he will look like he is standing still. He might have an eBay turbo and it's all show, no go. There's some companies selling kits now with $300 turbos on them. They might look "ok" on the dyno but real world is where it shows. Just like this kit on the dyno. Keep the hood closed and it will make the same power pull after pull. Close the hood on a turboguard and watch it ingest heat and numbers drop. Nobody does that though. And let me tell ya .. Those Facebook guys hate hearing the truth!

redondoaveb · 10-31-2021, 10:26 PM

Quote:

Originally Posted by TopgunZ

Sounds like if you come across him now he will look like he is standing still. He might have an eBay turbo and it's all show, no go. There's some companies selling kits now with $300 turbos on them. They might look "ok" on the dyno but real world is where it shows. Just like this kit on the dyno. Keep the hood closed and it will make the same power pull after pull. Close the hood on a turboguard and watch it ingest heat and numbers drop. Nobody does that though. And let me tell ya .. Those Facebook guys hate hearing the truth!

Aaron, your kit?

yonskis671 · 11-30-2021, 10:28 PM

Just wondering, what route people are going when installing the dedicated oil cooler for the SC? I've only found pushing the OEM power steering cooler back enough to get at least two bolts on the Rotrex oilcooler mounted down in front of it...anyone else have a more efficient way of installing this?

Mr.K · 12-05-2021, 07:03 PM

Has anyone done any comprehensive reviews/videos on the new Rotrex kit on its own and compared to other supercharger kits on the market for the 370z?

SeeThruHead · 12-17-2021, 10:41 AM

Quote:

Originally Posted by Mr.K

Has anyone done any comprehensive reviews/videos on the new Rotrex kit on its own and compared to other supercharger kits on the market for the 370z?

i don't think so but "thecarizon" on youtube has plans to upgrade his ace to rotrex last i checked. his videos are the most in depth (as far as DIY home garage style videos go) on the Z on youtube. So should be a good video series.

TopgunZ · 12-17-2021, 12:10 PM

Quote:

Originally Posted by Mr.K

Has anyone done any comprehensive reviews/videos on the new Rotrex kit on its own and compared to other supercharger kits on the market for the 370z?

Just take a look at the dyno graphs vs the competition. These Rotrex kits are making way more power throughout the entire low and mid rpm range. Pretty easy comparison on what car will be faster.

Even at 10psi these Rotrex kits make more mid range power than other kits at 15psi and comparative peak numbers at the same psi. The Rotrex also obviously has much higher peak potential up to whatever power you're comfortable running.

Mr.K · 12-17-2021, 02:03 PM

Quote:

Originally Posted by SeeThruHead

i don't think so but "thecarizon" on youtube has plans to upgrade his ace to rotrex last i checked. his videos are the most in depth (as far as DIY home garage style videos go) on the Z on youtube. So should be a good video series.

I have been following his channel but it doesn't look like he is getting the kit anytime soon.

Quote:

Originally Posted by TopgunZ

Just take a look at the dyno graphs vs the competition. These Rotrex kits are making way more power throughout the entire low and mid rpm range. Pretty easy comparison on what car will be faster.

Even at 10psi these Rotrex kits make more mid range power than other kits at 15psi and comparative peak numbers at the same psi. The Rotrex also obviously has much higher peak potential up to whatever power you're comfortable running.

That is true, I've noticed after comparing multiple dynos of different kits your new kit has a powerband that is strikingly similar to that of your typical VQ turbo setup with the exception that one is obviously lag free. I would just like to hear feedback on how the new vs. older setups feel in comparison. Would be interesting to see how this kit responds to pulley mods.

TopgunZ · 12-17-2021, 03:19 PM

Quote:

Originally Posted by Mr.K

I have been following his channel but it doesn't look like he is getting the kit anytime soon.

That is true, I've noticed after comparing multiple dynos of different kits your new kit has a powerband that is strikingly similar to that of your typical VQ turbo setup with the exception that one is obviously lag free. I would just like to hear feedback on how the new vs. older setups feel in comparison. Would be interesting to see how this kit responds to pulley mods.

When looking at those turbo graphs do you notice how the tq drops off hard up top? I found it interesting to see how the Rotrex holds the TQ.

And in my previous post I was talking about Superchargers when I said "other kits". But comparing it to turbos is fun too.

redondoaveb · 12-17-2021, 05:00 PM

Quote:

Originally Posted by TopgunZ

Just take a look at the dyno graphs vs the competition. These Rotrex kits are making way more power throughout the entire low and mid rpm range. Pretty easy comparison on what car will be faster.

Even at 10psi these Rotrex kits make more mid range power than other kits at 15psi and comparative peak numbers at the same psi. The Rotrex also obviously has much higher peak potential up to whatever power you're comfortable running.

Hey Aaron, can you post up the comparison dyno graphs. It would be great to see them posted here.

TopgunZ · 12-17-2021, 09:16 PM

Quote:

Originally Posted by redondoaveb

Hey Aaron, can you post up the comparison dyno graphs. It would be great to see them posted here.

That's kind of tricky to do because I get called out for "company shaming".. lol. But there's a site with a Version 2 kit that has a graph to check out. Then take a look at the graphs here or on my website. I think page 20 has a good one.

TopgunZ · 12-18-2021, 05:14 PM

Pretty cool illustration. That's a big area there that shows where the kit shines. All that for under $7k kit cost. ; )

Also, for some reason my dried out covid brain (that F'n sucked) forgot I have tons of graphs from the vortech kits I can use as a comparison. I can't now from my phone but when I get back on the shop laptop I'll post some great comparisons of centrifugal graphs.

Birdiev · 12-18-2021, 05:53 PM

Not sure if this graph will help any one out. My tuner was was a bit unfamiliar of how to bleed off boost on this setup. Took four tries before he got it figured out.This was on 93 and as you can see the S/C appears to kick in at about 3700 or so.he had a boost cut at 15 psi and was getting it dial in at about 9.5. So first four runs peak boost of 15 psi at about 5500 to 5700 rpm.Last run was finally at 9.5psi.

Guys please keep in mine that when you are getting on it your cars rpm will drop down to 5000 to 5500 hundred depending on the gear.So Any power behind that is something you will never really use unless your in first gear.This is where you guys with rev match transmission can shine because of boost by gear. No boost on first gear would be great because who can really run 600whp in that gear without spinning. Unless you have a killer setup. Anyway everyone has different goals so come the different views. Hopefully this graph helps on how this efficient this kit is. Almost forgot the whp is predictable with more psi but we noticed the torque curve hold way longer(doesn't drop off)throughout the powerband.

12-18-2021, 05:14 PM	#14 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Pretty cool illustration. That's a big area there that shows where the kit shines. All that for under $7k kit cost. ; ) Also, for some reason my dried out covid brain (that F'n sucked) forgot I have tons of graphs from the vortech kits I can use as a comparison. I can't now from my phone but when I get back on the shop laptop I'll post some great comparisons of centrifugal graphs. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

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10-30-2021, 05:29 PM	#1 (permalink)
VHRpurr Base Member Join Date: Dec 2019 Location: Northlake, TX Posts: 75 Drives: 16 NISMO 370Z M6 Rep Power: 6	Whoever owns this TG C38R G37 car… Good work sir.. siiiick. https://youtu.be/AzUHehiSufY

11-30-2021, 10:28 PM	#6 (permalink)
yonskis671 Base Member Join Date: Feb 2021 Location: guam Posts: 2 Drives: 17 370z BLK M6 Rep Power: 5	Just wondering, what route people are going when installing the dedicated oil cooler for the SC? I've only found pushing the OEM power steering cooler back enough to get at least two bolts on the Rotrex oilcooler mounted down in front of it...anyone else have a more efficient way of installing this?

12-05-2021, 07:03 PM	#7 (permalink)
Mr.K Base Member Join Date: Mar 2021 Location: California Posts: 79 Drives: 2017 370z Nismo Rep Power: 5	Has anyone done any comprehensive reviews/videos on the new Rotrex kit on its own and compared to other supercharger kits on the market for the 370z?

***Topgunz ROTREX C38R Supercharger Kit***

Topgunz ROTREX C38R Supercharger Kit