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  #321  
Old 18-11-2014, 10:59 AM
RICE RACING RICE RACING is offline
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Talking Re: RICESP Water Injected RX7

New inlet manifold set up arrived today
Modified refined rotors are ready
Engine block modifications done


The specifications of the new power plant are 'exceptional', very high specific power per bar of boost, and ability to make the turbos limit on the most 'basic petrol' no need for even premium fuel!.............. so stuff that you can buy ANYWHERE in the world

Again all with the power of water injection
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Last edited by RICE RACING; 06-06-2017 at 07:16 PM.
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  #322  
Old 18-11-2014, 12:48 PM
Grant M Grant M is offline
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Default Re: RICESP Water Injected RX7

What inlet setup are you using?
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  #323  
Old 18-11-2014, 02:39 PM
RICE RACING RICE RACING is offline
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Default Re: RICESP Water Injected RX7

Quote:
Originally Posted by Grant M View Post
What inlet setup are you using?
13B-RE Cosmo
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RICESP > F40 > Zonda > ZR1
Water Injection Specialist
"Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!"
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  #324  
Old 18-11-2014, 02:46 PM
Grant M Grant M is offline
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Default Re: RICESP Water Injected RX7

So you are using Cosmo plates too? Biggest of the standard ports;-)
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  #325  
Old 19-11-2014, 12:20 AM
RICE RACING RICE RACING is offline
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Default Re: RICESP Water Injected RX7

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Originally Posted by Grant M View Post
So you are using Cosmo plates too? Biggest of the standard ports;-)
No REW, they are simply ported out so they are the same as the Cosmo at the end of the day, just need a little rework.

The beauty of the Cosmo intake is the primary runners mostly as they are the right diameter to work with the RICE RACING street ports timing, the other big thing is the shorter manifold length as well as the plenum, all up a much better inlet manifold to use on my set up.

I have a real good document I made showing power per 1 bar pressure, I have a basic version listed on RCC forum, but my updated one is very extensive and proven, this set up is proven to deliver between ~250bhp and ~320bhp depending on ancillary items and other hardware specifications, such as CR, porting, turbocharger, exhaust etc etc.

Anyway, it will make 'high' power but have the ultimate in transient response and delivery + be usable anywhere anytime #1 design parameter.
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http://www.riceracing.com.au
RICESP > F40 > Zonda > ZR1
Water Injection Specialist
"Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!"
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  #326  
Old 19-11-2014, 10:17 AM
Grant M Grant M is offline
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Default Re: RICESP Water Injected RX7

What sort of response are you looking to achieve? Around 3500 and a rev limit of 9000? That will would be a really nice FD to drive with that power curve on boost.

Have you thought of using the 4 branch manifolds available or will they not give you better low end??
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  #327  
Old 19-11-2014, 10:53 AM
Grant M Grant M is offline
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Default Re: RICESP Water Injected RX7

What advantage does the plenum give you? Over the FD UIM? A larger volume of air available to be pushed into the engine?
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  #328  
Old 19-11-2014, 01:04 PM
RICE RACING RICE RACING is offline
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Default Re: RICESP Water Injected RX7

Main advantage is increased air flow to allow the ports to work, I have some special RICE RACING spec rotors which give earlier port open timing and alter closing, again all designed to work with the inlet manifold.

The turbocharger I have is referred too as 'H' version of the EFR9180, it's got a 1.45AR rear housing on it, I run a V60 Tial waste gate on it.

The full rotating assembly is balanced, clearanced, and lightened to work to 9500rpm reliably and at high output. The engine will have a working range from 4000rpm to 9500rpm, however the parts summed together will have a 'sweet spot' from 5000rpm to 9000rpm @ 2 bar gauge pressure or around 3 bar absolute pressure.

Set up looking for real honest power of about 750bhp to 800bhp @ the engine, that is very quick in transient response above 4000rpm, below that the engine porting was not designed for really, that was/is more the realm of stock standard Mazda Porting.

To put it into perspective for you (common 9.0:1 CR 13B-REW ancillaries small to medium size single turbo)
Mazda Porting = ~190bhp per bar of pressure
RICE RACING street porting = ~250bhp per bar of pressure

This set up with 7.5:1 CR RR spec rotors and increased timing and Cosmo inlet manifold (note you loose some power per bar of boost due to lower CR! as is normal but you far out gain that loss in increased boost pressure and tollerance to knock) will yield around 260bhp to 270bhp (OR MORE!) per bar of pressure on a 'state of the art' appropriate sized turbocharger

This is due to some trick timing changes allowed by the rotor face contours, all without needing to go to an inferior bridge port inlet

It does get complicated but without giving too much away (all my competitors like reading my posts LOL) its the interaction of all of these parts that makes for an efficient set up, but not only that, what I have engineered is a reliable and durable set up, one that can be used in the real world any where any time and to its full capacity without excuse ............ which is what a real street car is all about.



Lots of things have been in development thus why I have been not on here much, don't fret though all these will be showcased in RICESP and other places that I can let you know about one day but people like to keep their advantage a bit of a secret for a while LOL......
__________________
http://www.riceracing.com.au
RICESP > F40 > Zonda > ZR1
Water Injection Specialist
"Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!"

Last edited by RICE RACING; 06-06-2017 at 07:16 PM.
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  #329  
Old 21-11-2014, 11:00 AM
Grant M Grant M is offline
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Default Re: RICESP Water Injected RX7

Just reading it I what you are putting together is going to be an amazing setup.

Am I understanding you right that you have altered the inlet timing with the rotor face? Does that mean you have scalloped the rotors? Does doing this give you such a lower CR?

I think people only really go for bridge ports these days because of the "Brap" it is the rotary trade mark sound with the advances in ECUs and development of things like WI etc people are making there power with boost, and you know more than most the benefits of boost

Are you using your existing WI product or have you developed an even better system? After all we are on the water injection forum so thought if ask
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  #330  
Old 21-11-2014, 01:33 PM
RICE RACING RICE RACING is offline
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Default Re: RICESP Water Injected RX7

Quote:
Originally Posted by Grant M View Post
Just reading it I what you are putting together is going to be an amazing setup.

Am I understanding you right that you have altered the inlet timing with the rotor face? Does that mean you have scalloped the rotors? Does doing this give you such a lower CR?

I think people only really go for bridge ports these days because of the "Brap" it is the rotary trade mark sound with the advances in ECUs and development of things like WI etc people are making there power with boost, and you know more than most the benefits of boost

Are you using your existing WI product or have you developed an even better system? After all we are on the water injection forum so thought if ask
Yes I have the rotor combustion pockets machined as well as a very advanced scallop done but unlike any other

The engine well I think the set up will be o.k. just keeping it realistic and achievable, something I can use.

For the water injection it is my old faithful RRWEP140
__________________
http://www.riceracing.com.au
RICESP > F40 > Zonda > ZR1
Water Injection Specialist
"Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!"

Last edited by RICE RACING; 17-05-2018 at 09:45 AM.
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