I guess there isn't much chance of getting an "Axial Flow Supercharger" for Chistmas...is there???

 

I would bet not....
Its been a while since i have been able to talk/send RP to flow down an update for everybody
I have been in the process of moving then my old comp got all hosed up got a new comp and now will be on TDY after the new years until mid FEB...

 

Here is the latest tidbits I have gotten from RP/RX-8 fourm
Disclaimer:
Note the info provided here may change and all info at this time relates to the RX-8 development unless stated otherwise.



RP has attained +85% efficiency at 10psi (this is with no after cooling compressor only)
Total system Efficiency will go up once the latent heat of evaporation of the fuel once added (before compressor) cools the post compression air mass. At my last info from RP the blower for the S2000 would run pressures in the 8pis range.

Manifold flanges (RX-8)are being cut with manifold tubing to follow.
Compressor blade design has ben finalized (RX-8)
The compressor is undergoing endurance testing to conform there is no bearing wear and shaft alignment are perfect. Remember this entire compressor is manufactured out of a solid piece of billet aluminum cut on a C&C machine so the design is repeatable down to the level of accuracy of the C&C machine.




Note RP S200 short shifter (first batch) has been manufactured and ready for sale
see
https://www.s2ki.com/forums/index.php?showt...5&#entry6712301
for info

 

BUMP

 

Update: RX-8 Version of the AFSC is progressing.

Key note: RP has now got the current design (RX-8) compressor running at 36,000 RPMs to produce 7.3 PSI at an efficiency of 88%.
(The compressor can be spun up to +42K rpm for more boost.)



He is getting closer to finishing the RX-8 AFSC..
The S2k version is just around the corner

 

I can't wait to see the final design on the RX-8, just to see the concept work. And I really can't wait until development on the S begins.

 

I will post some pictures tonight of the RX-8 AFSC set up.

PR has one of the prototypes bolted onto the RX-8 engine on the test bench.

 

 

Here are some questions I have for you if you don't mind:

1. What is way this device is made so that the mechanism doesn't freeze up. e.g. oil cooling, water cooled, etc.

2. How many ACTUAL moving parts are in this device?

3. Could a design like this be track driven under the harshest of conditions? Cold weather, hot weather, rain etc.

IF these don't make sense let me know and I can clarify.

btw awesome design and truly innovational. It takes the art of forced induction to a new dimension.

 

I think this supercharger is only going to be an option for those seeking very high boost pressures. At lower boost levels (<8PSI) I imagine the centrifugal offerings will be more cost effective ways of increasing horsepower. Also, the new BRP kit will blow this away (literally) at these pressures due to its flat boost curve.

Big boost applications could really take advantage of this unit. The high efficiency of the compressor will put it in another league when comparing it to a centrifugal unit with a high-boost pulley.