***Topgunz ROTREX C38R Supercharger Kit***

Geeoo

How much boost/power can we safely run on the stock motor with this kit?

NissanTracker

My guess is many factors contribute to it. I always was under the impression 12-14psi was max. But, that was because some guys were going SI trim on the Vortech, upgrading the turbine, upgraded bearings to overspin. That was bringing on the torque hard early in the power band. Torque is the breaking factor for rods/spun bearings.

I don't think i actually ever heard of anyone actually going through a headgasket with the v1/v2 kits even at 16psi.

So, how much boost can we safely go before headgasket problems.

TopgunZ

Yes torque is more of a factor on motor longevity. However, it also hugely depends on how that torque is delivered. Do you see how perfectly linearly the torque gets ramped in on these kits? That is friendly to the motor as it does not experience an impact of it. Also the higher in the rpm band you can push the torque the easier peak torque is on the engine.

Turbos take all that torque and slam it in very early in the rpm band which is that "rush" feeling...and then they taper off. This is also a fun experience as it hits like a freight train, but is harder on rods. Go look at a dyno graph of a single or twin turbos and see how the torque looks.

This kit brings torque in and it just keeps climbing which is a totally different experience than turbo setups. The car just keeps pulling and pulling like its trying to exit the damn atmosphere! Much more predictable. Especially for a track setup.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

NissanTracker

That torque line is pretty insane. Decisions, decisions, decisions. I'm working on a built bottom end this year in my spare time, so when that is done... I start deciding which FI solution I'll go with.

NissanTracker

I also want to know... how much of the Knock sensitivity is being turned down for these numbers 16-20psi?

TopgunZ

I have no idea as I didnt tune it. But knowing Eugene and the fact, that to my knowledge, he has never blown a motor...Id say he left them untouched. I know 100% for sure he keeps on all safety features. Some tuners out there turn these off completely to make "numbers".

Honestly, there is still a ton of power to be made with this kit. But the car owner doesnt really want to see what its full potential is right now since its the beginning of car season.

However, DYNOSTY is getting one of the first kits and is going to full send it!!

I speak conservatively when I say 800whp will be broken.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

NissanTracker

Holy mother of god.... Need to stay tuned for this.

NorthStyle

IIRC you mentioned previously that these numbers were on E85, when should we expect to see the 93 numbers? I'd love to go E85, but it's just not readily available in my area (without a 45min one-way trip)

Another Q: what was the fuel system/components for this vehicle?

TopgunZ

I am not sure when we will have 93 numbers. However, I am sure you have nothing to worry about. I can GUARANTEE this will make more power on 93 than any other supercharger option you have been considering. Really, what would be the reason it wouldn't even if you ran with a dirt ingesting kit?

The supercharger is more efficient, the intercooler is very efficient (24*F temp rise at 21psi! ) , it can control boost to dial in exactly where you make power with timing vs boost. Just looking at this kit can tell you it will dominate any other SC on 93 all while filtering the air.

And the hummm and whine of this unit puts it in a whole new realm of sound vs the marbles effect.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

Geeoo

How much boost can we run with what comes with kit? Or do we need to buy a separate electronic boost controller ?

TopgunZ

The kit will come with 5 wastegate springs. Dial in whatever you want with those. You could add a manual or even better electronic boost controller to dial in on the fly. Revolutionary in the supercharger industry. No kit on any platform has offered this.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

VHRpurr

Best part is you can buy a Specialty Z boost solenoid wiring kit, a Mac boost solenoid and control it all through EcuTek, and monitor with the Bluetooth dongle. 😎

rspray2000

Any reading on how these all interface and work through the tune? Does it just eliminate the need for the boost controller in the cockpit?

Nevermind, I think I found here: https://www.full-race.com/store/borg...ol-solenoid-1/

VHRpurr

That was already answered on the last page or 2 pages ago brotha.

TopgunZ

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM