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RotorMaster "blown 13B-MSP" RX-8

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Old 08-12-2005, 09:13 AM
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RotorMaster "blown 13B-MSP" RX-8

G'day guys.

Am about to do a full feature on the latest weapon from ROTORMASTER for ZOOM magazine. This baby revs with serious grunt right through to 9000rpm. All with a standard exhaust.

Damned Joe, put a Hymee system on that test mule would ya.

Here are some pics of the install for the supercharged 13B-MSP

REgards






















Old 08-12-2005, 09:23 AM
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A procharger? I believe there was a US dealership (Sunflower?) that went that route, but I didn't hear more from them.

What kind of engine management is it using.
Old 08-12-2005, 09:30 AM
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great news!
can you pls give us more info/spec?
what kind of $$$ range are we looking at? :D
Old 08-12-2005, 09:47 AM
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interesting setup....makes a tad bit over 200hp? or am i reading it wrong?
Old 08-12-2005, 09:53 AM
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Originally Posted by XDEEDUBBX
interesting setup....makes a tad bit over 200hp? or am i reading it wrong?

only the yanks use horsepower, the rest of the world uses kilowatts
Old 08-12-2005, 09:55 AM
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Originally Posted by XDEEDUBBX
interesting setup....makes a tad bit over 200hp? or am i reading it wrong?
Your reading it wrong. 203kW converts to ~270hp.
Old 08-12-2005, 10:01 AM
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thank you for the conversion...lucky kiwi's..haha
Old 08-12-2005, 10:59 AM
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Nice! That layout really makes sense :D
Old 08-12-2005, 11:48 AM
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Prochargers are simple to hook up it seems.
Old 08-12-2005, 11:49 AM
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Originally Posted by DMRH
G'day guys.

Am about to do a full feature on the latest weapon from ROTORMASTER for ZOOM magazine.
Didn't these guys build the Red turbo 8 also down there?
Old 08-12-2005, 01:39 PM
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i couldnt just leave this wilting from lack of attention in the Aussie forum. rounded up that is 273 hp
Old 08-12-2005, 02:32 PM
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how is the maf working??? any bugs on it.... because of the position???
does this setup have the catalitic converter???
and to control the extra fuel what are you using???

sorry to many questions... :D
Old 08-12-2005, 02:41 PM
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Looks good.

Whatever happened to Sunflower? I suppose they threw in the the towel.
Old 08-12-2005, 03:16 PM
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how much does the system weigh?
how much does it cost?
were did you relocate the battery?
what management system?
and can i have one for free? :D

denward
Old 08-12-2005, 03:42 PM
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You can see the battery in the pictures. It is the small red thing on the driver's side next to the intake pipes.

How much boost was this running?

I have a couple of concerns but hopefully this can be attributed to the fact this is just a prototype. The air intake on that is sucking up really really hot air from the backside of the radiator. It would make alot more power if it got outside air. I would have liked to have seen different routing for the intercooler pipes more along the lines of going down and under like some turbo kits have done. This way the intake could be routed to the stock location and it could get colder air. The maf is also after the blower which concerns me. If it is running off of a standalone ecu which only taps into the temperature sensor part of the maf then I fully understand but if they are using a piggyback ecu system they might run into problems. Hopefully this is just a prototype to see if it works and they'll get the bugs worked out of it.

Everyone look at that torque curve. Yes it is flat but it is flat going uphill. Centrifugal blowers are all top end power. They don't have much on the low end. Compare this to the Mazsport Greddy torque curve at about the same peak power level and you'll notice that the Greddy has tons more usable power lower in the rpm range. This is just an inherent side effect of centrifugal blowers.

I'm not insulting them for this kit in any way. I am happy that we are suddenly seeing more and more options out there for this car. I am just merely pointing some things out to make people aware of them. People just need to realize there is more than just peak power to look at.
Old 08-12-2005, 03:47 PM
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as installs go, this looks really easy, which is certainly a nice selling point. ECU tuning aside, if you could install your Revi intake, you could install this kit.

Thats the nice thing about supers, they are much easier on the install side than the turbo's. If you had a problem, you could almost put the car back to stock and no one at your dealer would be the wiser.
Old 08-12-2005, 07:00 PM
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I have been thinking about a similar set up with the SC positioned with the inlet facing the std air box with the outlet heading across the engine bay into a water to air intercooler and back to the throttle body. in concept it works but space wise it might not happen.
Old 08-12-2005, 07:09 PM
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Originally Posted by brillo
as installs go, this looks really easy, which is certainly a nice selling point. ECU tuning aside, if you could install your Revi intake, you could install this kit.

Thats the nice thing about supers, they are much easier on the install side than the turbo's. If you had a problem, you could almost put the car back to stock and no one at your dealer would be the wiser.
Or you could have the advantages of both with one of those wacky STS-style setups.

whoops, better duck before wakeech throws something at me
Old 08-12-2005, 07:25 PM
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I like those wacky STS style setups!
Old 08-12-2005, 07:25 PM
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keech aint here
Old 08-12-2005, 08:09 PM
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[QUOTE=rotarygod]You can see the battery in the pictures. It is the small red thing on the driver's side next to the intake pipes.
QUOTE]


Hmmm, isn't the driver on the side that has the master cyld?

Is the MAF sensor now mounted in that intake tube?
Old 08-12-2005, 08:12 PM
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Oops good call. Damn backwards country!

Yep they mounted it after the blower.
Old 08-12-2005, 08:57 PM
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.
Originally Posted by DMRH
Battery is an ODESSY one under the intake pipe. Starts the engine easily but further mods are required to allow the standard battery or placing it in the boot.

The engine management is the TSI interface into the standard ECU. Maximum boost is at 0.5-bar as thats the maximum flow of the standard injectors.

Rotormaster plans to find the upper limits of boost into those 10:1 rotors by upgrading the injectors for more flow & raising boost to 0.8-bar.

They are going to be sold as kits like the turbo units. The Turbo kits are still selling but Joe has found the supercharged kit flows better & gives more torque.

Pricing on the kits is something I dont know yet. I am getting the RX-8 next week for the driving test & will post results here for you all. Thats months before the rest of Oz gets it from ZOOM magazine.

On that subject, get this issue of ZOOM. Its the best one yet & has plenty of technical rotary information that all you RX-8 guys will need to know.
Old 08-12-2005, 09:43 PM
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Actually if you look at that dyno chart closely you can see how the boost rises with rpm. The top line is obviously the power as measured in kw on the left hand side of the screen. The lower line is the boost as measured on the right side of the screen. It peaks at about 7 psi or so which matches what was mentioned of .5 bar of boost.
Old 08-12-2005, 11:03 PM
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Rotarygod

Thanks for pointing out the possible shortcomings of this kit as you said most of the power is up the top end i want more power down low 2000rpm to 6000rpm :D hopefully Hymees twin screw supercharger will offer both low end and top end power ??

My main concern is the TSI unit they are using to control the ECU id much rather see the Mazsport system in place , would it work with this set up ???



B...free
michael


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