Yeah, I underdand the pulleys are controlling boost. I'm saying a setup with the pulleys and any ECU flashes for a higher boost. So far, there is just 2 options. Will there be anymore?

 

if you wan tdiffernt than what he offers you will to go some other avenue for tuning. he is not going to customize for each persons individual tastes/desires.

 

let him finish one flash and later he will probably work on another with a pulley for a little difference in $

 

my understanding of it is that the only way it increase boost is to add stages to the SC itself.

a few questions...

would you be able to run 2 chargers?

if so, what would work better, one after the other or side by side?

if a 5 stage SC puts out 7psi, does that mean an 8 stage SC will put out 11.20psi or is it a case of deminishing returns due to more work to compress the air?

if you were to run 2 chargers side by side, both at 7# flowing 600CFM at max rpm each, does that mean that the motor will be taking in 1200CFM assuming it can?

i know that the renesis hasnt been developed to the point where these situations can happen. im just trying to get a better idea of how this particular design works. sorry if theve been asked before

 

RP any though on using something like this instead of the gears to step up the rotational speed

http://www.rotrex.com
>mouse over “technology”
> click on “concept” (show a cross section of the step up design)
>click on “Design & Production” also under “technology” to see an animation of the system.

The only advantage I can see from this design over the gearing you use is a more efficient way of stepping up the speed from the pulley to the main shaft. (not looking at the compressor just the way to step up the rotational speed)

The losses associated with gears (friction/ friction induced heat/backlash/teeth wear/gear noise) are no longer a problem.

Apparently From what I could dig up on there “oil” the viscosity increases as it passes through the area where the bearing are just about to touch.


So if you are able to get the tolerances just right the fluid properties provide a very efficient medium to transfer the rotational mechanical energy between the casing, bearing and main shaft ;and at the same time prevent actual metal to metal contact reducing any noise and surface wear at the speed the bearing/rollers must turn.

Not really sure on how this would play with the so called patent on the “traction drive”
Could just call it a bearing drive.


Also found some other technology that may be applied to the AFSC at a later time to increase the lower rpm boost profile.



http://www.antonov-transmission.com/...percharger.htm

http://www.worldcarfans.com/tuners.c...d-supercharger

click here for Rotrex details (power point presentation) may take a while to DL
http://www.w2wpowertrain.com/images_...esentation.pps

http://www.w2wpowertrain.com/images_...esentation.pps

 

very interesting
OD

 

RP - we need the stats on the test mule. How many miles, MPG, tickets, etc...

If I get me home renovation done under budget - then maybe '07 I'll hook up with 'ya.

 

RP (everyone)

I would be willing to pay extra if something like this was also included in the AFSC kit (as an option maybe). This seems very nice and the fact that is touch screen and OPEN (meaning other applications can run on it) would be really cool.

http://www.drewtech.com/products/dashdaq.html

Any comments?

 

Hmmm, I wonder if Hymee could put his sCanalizer into that thing.
Have you seen this Mark? It's a whole lot easier then carrying a laptop around.

 

If you actually watch the demo you can see realtime readings on several functions. It boots up in 10 secs, much better then any laptop running WinBlows. Also has 2 analog inputs for external sensors, plus data logging to SD memory cards.

I must say its not really that pretty but that can be fixed easily enough. The screen however looks fantastic and touch screen for input means no need for keyboard or mouse. Direct connection to OBDII interface means no dongle (interface converter). Its small size leaves plenty of places to mount the device.

Coming from an embedded background this thing is truely a good deal and its functions are something everyone here wants in their car. The fact that GPS and other applications can be downloaded and run from this allows for all kinds of possibilites.

 

You guys ask for a lot of stuff. Higher stages, more boost, digital outputs. Things that cost money and take time. I say just get it out and worry about that stuff later!

 

When a kit is about to come out, people give up their wish list. When the kit comes out, they see the price and suddenly complain it's too expensive and they want it more simple. You can't win as a forced induction manufacturer.

 

The enemy of good enough is perfection. You've got to draw the line so you can get a product out, get your customers hooked, and make enough money to put out the new version with all the new bells and whistles so your customers will come back for more.

 

The dasDAQ looks awesome... the 200MHz processor though may be a drawback in a GPS/Navigation program though (that is if you actually find something worthwhile that runs Linux)

 

after I got the new engine (coolant leak into the first rotor chamber) My Dealer asked when I was going to turbocharge or supercharge the car. I said I was going to wait till the warranty ran out and the service manager said why? you can put a turbo or supercharger on the car without voiding the warranty. Mazda would have to prove the supercharger or turbocharger caused the failure.

So RP, When am I going to Supercharge my car?

Especially since my Dealer says I can without voiding the warranty.

 

Really, I would like to know which dealership said that in WA? I think a lot of people are like you right now and are waiting off for the warranty to expire.

 

University Mazda

http://www.umazda.com/en_US/

 

actually, TomTom is a 200MHz processor system running Linux... they don't sell that software though that i know of unforutnetly without their device, only the pocketPC software is sold seperately

 

All this about waiting for the warranty to run out is silly. A car is the most fun when it is new, not getting the most enjoyment from it then is a false economy.
What will fail that would have been dealer repaired? Baring you tuning a stupid tune into it your not likely to destroy the engine.
Like the dealer above said it would have to be SC related to be refused. And so what if it does, you still had fun and can rebuild the engine for a reasonable amount compared to piston engines.

The only real excuse you have is the CARB problem. That is something that we want to do and I can't tell you how long it will take but there is no reason it can't. Right now our car will pass everything but the visual test. If your state uses a sniffer test then your fine.

BTW, University Mazda gets the world dealer award for fine (and honest) service.

So just think about the years your taking off your own life by being upset everytime some econo box beats you up to freeway speed from the on ramp. And you feel embarased on Mazdas behalf. Give your heart a break and supercharge. I wonder if that could be a medical expense, thus tax deductable.

 

I agree. If your engine is going to fail under boost, don't you think it would be more likely to do so after you've put 60k miles on it and then supercharge it? You might have to fight a little bit harder to get some stuff covered, but most warranty covered issues will be electrical or non-powertrain related anyway. A supercharger isn't going to void your warranty, only the stuff directly affected by it (engine and drivetrain).

That being said, I've been waiting so long for FI that my warranty is long gone, so somebody hurry up.

 

my warranty is out in less than a month.... mind you, the AFSC still isnt offically out yet, and the UK/ EU ECU issues have yet to be finalised.

I recently heard that the actual physical EU ECU unit isnt actually the same as the US one and that the pin connection etc might be diferent.

 

RP for Surgeon General! Great way of thinking

 

I'm sold Richard. Had a great conversation with you at 7stock about the AFSC. Liked what I saw. Agree with the price. It is the right solution for the goals I set. Don't care about my warranty. Want to improve my health and stress levels. Where is my supercharger?!

Need any local beta testers?

 

Just got back from the Dr's office.
I got mine!

Now where's that pick-up window?

 

lol