RotorMaster "blown 13B-MSP" RX-8
08-12-2005 | 10:13 AM
#1
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From: Sydney, Australia
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
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
08-12-2005 | 04:42 PM
#15
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From: Houston
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.
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.
08-12-2005 | 04:47 PM
#16
Go Texas Longhorns!
Joined: Apr 2003
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From: Houston, Texas
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.
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.
08-12-2005 | 08:00 PM
#17
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From: QLD .au
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.
08-12-2005 | 08:09 PM
#18
Senor Carnegrande
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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.
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.
whoops, better duck before wakeech throws something at me
08-12-2005 | 09:09 PM
#21
[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?
QUOTE]
Hmmm, isn't the driver on the side that has the master cyld?
Is the MAF sensor now mounted in that intake tube?
08-12-2005 | 09:57 PM
#23
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From: portland oregon
.
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.
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.
08-12-2005 | 10:43 PM
#24
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From: Houston
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.
08-13-2005 | 12:03 AM
#25
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From: Gold Coast Australia
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
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