Kraftwerks Rotrex Supercharger Discussion

[Dezoris]

Originally Posted by ATL BRZ

Don't forget that the Rotrex does so more efficiently than the Vortech. The Rotrex doesn't overheat when tracked hard like the Vortech does requiring Gem to go oil fed with his after blowing out the impeller seals IIRC. We don't have track data for our platform for either the JR or KW Rotrex kits and so all we have to go on is what other platform's have experienced.

I don't think that is accurate at all, on the stock pulley he never overheated the SC. The only issue he had was the SC oil being filled to the point of it being blown out. Which was an issue with proper oil level Vortech had to change documentation on.

Unless I am wrong

[ATL BRZ]

Originally Posted by Dezoris

I don't think that is accurate at all, on the stock pulley he never overheated the SC. The only issue he had was the SC oil being filled to the point of it being blown out. Which was an issue with proper oil level Vortech had to change documentation on.

Unless I am wrong

You're probably right it's been a while since I read his posts about it.

I just remember him saying he was able to heat soak it to where it was noticeable with enough repeated abuse on track, even before pulley upgrades and seal failures.

It'd be a lot easier to find his posts if he didn't have like 4 usernames.


@Adeets , @Dezoris , do either of you have technical data sheets with compressor maps for the Vortech V-3 H67B used in your cars like this one?
That would make it a lot easier to compare the two SC's accurately (in a separate thread, maybe?)

[sw20kosh]

The rotrex is supposed to be able to produce more mid range power than the vortech design isn't it?

[SmsAlSuwaidi]

Originally Posted by Dezoris

I have never been a fan boy for Vortech. I basically publicly trashed them after my install. But they have proven themselves in terms of support and fixing issues, and reliability its the most popular SC because of it.

The problem has and always been transparency. On these forums, it's so tiring seeing 95% marketing and a sprinkle of data. When you question anything you are either a troll or made to be an idiot.

My feeling is if you peddling a product online or forums have the data to back up your claims. If you did your homework and proper testing then there should be very little to hide.

I didn't mean to pick out anybody running a vortech .
I totally agree with 95% of what you said is true but the ironic thing is while you ask for track tested data a majority of the vortech sponsored cars run a rocketbunny kit, slammed or are parked at home

Sorry sent from my phone

[ATL BRZ]

Originally Posted by SmsAlSuwaidi

I didn't mean to pick out anybody running a vortech .
I totally agree with 95% of what you said is true but the ironic thing is while you ask for track tested data a majority of the vortech sponsored cars run a rocketbunny kit, slammed or are parked at home

Sorry sent from my phone

Exactly. There are 4, maybe 5 Vortech fitted cars that I know of here that have seen repeated track abuse. Not just a one day event in a novice run group.

I've seen quantifiable track data from three of them: Gem's, Dezoris', and F1Point4's; but Gem is the only one I've seen really beat the shit out of the car and try to break stuff. The rest are driven rather gingerly around the track IMO. No offense, it's just how run groups are structured for driver's just getting into HPDE's.

There is also SpeedFactory's and Chase Bays' Vortech'd track cars, but so far all I've seen are lots of pictures and a few video clips, no extensive uncut track footage or data.

[jamesm]

this car isn't suitable for track use in stock form, not sure why anyone would expect differently with a supercharger bolted on.

[ATL BRZ]

Originally Posted by jamesm

this car isn't suitable for track use in stock form, not sure why anyone would expect differently with a supercharger bolted on.

Hopefully whomever goes FI with this car with the intention of tracking it will at least install an oil cooler, bigger radiator, and a stronger clutch as well as provision the brakes and all fluids for track usage.

[SkAsphalt]

My main issue with this kit and the JR kit is the aesthetics. The vortech SC is the nicest looking, just like the AVO kit is the nicest looking turbo.
For a lot of people, that matters

[Calum]

Originally Posted by SkAsphalt

My main issue with this kit and the JR kit is the aesthetics. The vortech SC is the nicest looking, just like the AVO kit is the nicest looking turbo.
For a lot of people, that matters

We all have our priorities. No one can fault you for yours.

[Dezoris]

Originally Posted by ATL BRZ

@Adeets , @Dezoris , do either of you have technical data sheets with compressor maps for the Vortech V-3 H67B used in your cars like this one?
That would make it a lot easier to compare the two SC's accurately (in a separate thread, maybe?)

I can't find the image but Vortech posted it a long time ago. @Brian@Vortech @Rick@vortech can you guys link or repost your compressor map?

[SkAsphalt]

I will wait to see the results form this kit. I remember Swift Racing Tech (the guys who made a great exhaust and then f*** up by not building them fast enough) was going to develop a SC for the twins. I think they said twin screw or something, that was clutched so it could disengage when cruising.

I am excited JR and Krafwerks are working on rotrex sollutions, by next year I will be going FI and I will have a lot of choices to make - which is great

[Sellout]

The rotrex is supposed to be able to produce more mid range power than the vortech design isn't it?

That has always been the assumption. Clever wording from Rotrex coupled with internet forum jockeys piecing together assumptions from what they read resulted in people thinking that a Rotrex unit would have a better boost curve than every other centrifugal supercharger on the planet, which would give you better low end torque.

It's never been proven, to my knowledge.

[digital_assassin]

I just bit. I'm #21 it looks like. One of the selling points for me is it doesn't share the same belt. Rotrex and Kraftwerks are pretty solid so I guess it's time to be an early adopter! Time to start looking for headers...
@Drift-Office - You down to do a tune on this Bob? I currently have EcuTek. Ready to start talking with you about best options for this track build.

[Adeets]

Originally Posted by Dezoris

I can't find the image but Vortech posted it a long time ago. @Brian@Vortech @Rick@vortech can you guys link or repost your compressor map?

I found it on google images under "BRZ vortech flow graph" but I'm on my phone so can't link it, I did notice max rpm on the rotrex 94 was 100k, but looked like they did data up to 250k