ROTREX SC Brainstorming

[FreshFRS]

Originally Posted by MANDALAY

Relative size to the biggest Rotrex C38-91 with billet wheel

might contact the nearest runner but could be made to work i bet.

[uspspro]

C30-94 is an option, but ~300 rwhp is the max you can extract from it. It's nice and tiny though! It's kind of like a GT28RS size compressor side.

[MANDALAY]

Since being hit by the bug of a Rotrex originally on the Spyderchat forum i have continually looked for builds over the years.

In real terms what i make is usually out of the relms of most but certain things can be used and are usually the key components.

Then also i have found many very good kits such as this one for the 370Z




This is a very well researched and comprehensive kit that i would gladely put into my car if i had a 370Z.
What will SHOCK many is how cheap it is at $6,500 and its a COMPLETE kit

[serialk11r]

If you're going to restrict the flow and therefore completely destroy the efficiency why not get a Roots blower You also get better gas mileage off boost. Eaton M62 pretty easy to find.

[MANDALAY]

Personally i wouldnt restrict the flow . it has been done and even myself by mistake, but it does work.

Could get a smaller blower but i prefer a WG.

[Genomaxter]

I have no issues with the low end of the stock engine. I think it needs more top end. Therefore, a rotrexor turbo are this cars best option imo. And I do love the rotrex unit.

[MANDALAY]

Looking at the kit above and the other SC Vortech both are gear driven SC.

I wont comment how good or weak they are other than to say that they both have unusal shapes.

But the thing that stands out i guess being an affordable pair of kits is there really isnt any real customization of these blowers and by using the standard item really doesnt blend in. Something im not a fan of.







The first one with the spaghetti pipes and the second with the SC back to front.
I guess that they can be reversed rather than the normal clock wise direction .

What i would prefer is to shape the actual rear of the inlet and the outlet.

Something that i have done on my SW20 and something like this.





The time and labor is making the moulds but i have done that before. Then get them cast. Thats easy as i have a foundary close by and really cheap.

[MANDALAY]

Something like this




Will need to work out how much hight i have for the intercooler and distances for the airlines.

Ild rather keep the OEM air box as i have in the past and just put a TRD filter in there.

[Calum]

I haven't look too closely, but it might be possible to unbolt the intake manifold and turn it around. If you did that it could clean up the piping a bunch and might leave enough room that you wont have to move the alternator. You would have to extend the PCV hoses, but that's minor.

[uspspro]

FWIW, Kraftwerks is developing a Rotrex kit for the BRZ/FRS/86. No ETA from them at the present time.

[MANDALAY]

Originally Posted by uspspro

FWIW, Kraftwerks is developing a Rotrex kit for the BRZ/FRS/86. No ETA from them at the present time.

Didnt they also say that with a particular Civic model then never did ?

Ild love to see their take on the layout.

[SubieNate]

@MANDALAY - Could you go over exactly what makes the Rotrex better than the Vortech unit?

I was also under the impression that the HKS blower was at least Rotrex designed. No?

Nathan

[Shit Luck]

couldnt we just dump the ac setup to make room for this....
i mean i dont really think the ac is that important to the guys who will be considering this setup..... :happy0180:

[MANDALAY]

Originally Posted by SubieNate

@MANDALAY - Could you go over exactly what makes the Rotrex better than the Vortech unit?

I was also under the impression that the HKS blower was at least Rotrex designed. No?

Nathan

Wow thats loaded question. Im not really trying to get a thread started that starts bashing which is better etc. Im really looking at the point of getting ideas , thinking out of the square and going over everything.

Those that have guinea piged their cars for a Vortech kit or are looking into getting one will cry blue murder. They have a kit ready for sale. I wont have a kit but seriously having done this myself before the hardware is only 30% of the work. Its all about the ECU and the tune.

People believing that they can buy a kit and have some magical tune are dreaming.

Having said that i dont like the design of the Vortech an the claim about efficency, claim max numbers it crap in my books. So their effeciency would be the same as the Rotrex . The Vortech cannot spin anywhere close as fast as a Rotrex unit
Oiling systems are different . The V3 is closed again not my liking whereas the Rotrex has its own system circulating and must be cooled.
The Rotrex comes in about 20 sizes and all are smaller than the V3.
The Rotrex has absolutely no sound where as gears do.

And Rotrex is the only SC that was OEM for those who care , really i dont but hey others are claiming these high efficiencys , custom this /that but sorry the SC is just a blower and it needs to work efficiently at thats it.

Im in Taiwan right now and i can go to shit load of factories to see leading world brands made.

The HKS is a copy with out a doubt.

The main reason i believe is that they didnt go with this on the 86 but did on the 3SG Black Top Beams was that the 86 doesnt have that much room and they needed /wanted to mount it back to front as the Vortech has done. In doing so the SC will be spinning counterclockwise and the Rotrex it cannot , well the havent made one to do so.

Finally i just think the Vortech is big and the main reason if you have ever driven a Rotrex man you will be convinced.

BTW i am in no way a vender/affiliated with anyone at all.

Our Rotrex SC's are destributed by BULLET, hold on a second they are the guys doing the the other SC twin screw
See they havent convinced me to do that also have they ? Well no, they know that i can execute the Rotrex far better than any put together kit

Ok come on the Vortech guys start bashing me

But please see and understand its really not the SC that in a way i dont like its really the installation.

Those intercoolers are $100 here, pipe work about $30 and SC ?.

If its all made in America well obviously will be dear but visiting manufacturing empiers over here NO WAY. They push so much out in an hr that its mind spinning
If it was $4,000 plus a ECU remap then ild say its closer. Really depends what Profit margine they are looking for which really noone is going to tell you