mac11

iTrader: (1)

just as a theoretical couple of questions.

why not leave the center port and add a p-port as well?

Do you think a small p-port be added in a location as to not induce overlap. I wholly agree with RG on the no overlap subject. Lot's of intrinsic benefits. And it seems you could add a lot of exhaust flow without messing up the idle such as in an overlap engine.

PhillipM

Because we could keep the exhaust gas speed up by shutting the centre ports off completely - and gain more of the benefits of having overlap + tubular headers, if you do end up with some overlap - due to getting rid of all that turbulance and mixed pulses from both rotors.

I'm one of the few people that are racing in a series with unlimited N/A mods and no turbocharging, so overlap isn't as much of an intrinsic problem for me as for you lot anyway.

TeamRX8

iTrader: (25)

Except that you've yet to prove that your's does anything more than make a different sound. Have you even run it to redline yet?

Furthermore, I'd take anything from either of these two companies with a grain of salt. Funny how they always claim 20 hp with parts everybody else only sees 2 or 3.

PhillipM

Pardon?
Mine's been in competition for the past year, and it's doing very well thanks.



Good old green eyed monster eh?

rotary.enthusiast

^Case of mistaken identity? Phillip_SA has a thread about his bridgeported renesis.

PhillipM

Probably not, he just doesn't agree with my exhaust design and because of that it must automatically be crap.

zoom44

if you want exhaust overlap chamfer the edges of the rotor more.

TeamRX8

iTrader: (25)

Actually it was an honest mistaken identity, the auto crap response is your own image in the mirror

otherwise I do apologize for getting you mixed up with Philip_SA


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Rote8

Did anyone notice the small gas tank with several lines sitting right behind where the rear seat goes?

How would that be?
A small tank filled by the stock pump, from that tank we make a real fuel system.

TeamRX8

iTrader: (25)

in the Renesis this will also affect how late the intake closes and how early the exhaust opens, no free lunch here ....

stinksause

iTrader: (5)

bump ... but what about adding a small pp exhaust so as to not induce overlap? maybe I iz a confused noob, but it seems like everybody dismissed that without saying anything....

also: rx7 1 piece seals in the rotors to help with the concerns of wear over a pp?

TeamRX8

iTrader: (25)

you don't have that option, anybody that wants it doesn't understand enough to know better than to ask that's why nobody is responding

stinksause

iTrader: (5)

ok... thanks for the clarification ... so I am a troll....
where can I go to learn?

paulmasoner

iTrader: (1)

its got something to do with water jackets i think

TeamRX8

iTrader: (25)

and 1800+ degF, but no matter what you will induce overlap regardless, in reality your entire basis is invalid ...


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stinksause

iTrader: (5)

I see thanks

nycgps

iTrader: (1)

*bump*

You ask that because you have no idea what MoTeC can do. M800 system ahhh pure sex (also #@$()@&#$)*@ expensive)

paulmasoner

iTrader: (1)

AFAIK the only signifigant thing the MoTec does that the OE PCM does not, is fueling can e controlled independantly between F&R rotors.

longpath

iTrader: (1)

After reading the whole thread, and the various ideas thrown out, I am wondering something about the center port flow and something I noticed about the 16X. From what I can tell, the 16X is the same length as the Renesis (either S1 or S2) despite having narrower rotors. If that is true, then it seems that some other part must be getting wider to compensate for the reduction of width in the rotor housings. Again, if true, could it be that the center housing have been made wider so that the siamesed center exhaust port could be either separated or at least be reshaped for less turbulence?

Mazmart

iTrader: (12)

I was not aware that the 16X was retaining the existing length but if so you may be correct. Illustrations of it did seem to hint it's exhaust ports may be improved.

Paul.

TeamRX8

iTrader: (25)

Why even bother to spent your time theorizing about what they may or may not do on an engine that may or may not be produced at some unknown time in the future based on an unconfirmed point that may or may not be valid?

longpath

iTrader: (1)

I was simply trying another mental angle to wrap my thoughts around the originally posted idea. It's what I do to noodle these things out. I ask questions, often very hypothetical, in the hopes that someone with a better understanding can tell me, "No, you're wrong because of A, B, and C," or "That's actually something I know or understand to be true." It was not an intentional threadjack; but was just me trying to better understand why a hybrid Renesis/13B might be capable of some advantage.

FazdaRX_8

iTrader: (1)

seems we need varible exhaust flow, like the intake ports opening and closing at different RPMS

imagine haveing valves to keep the exhaust P-port closed, then at higher rpm it opens?

TeamRX8

iTrader: (25)

it's only a matter of money, which is why building a turbo 13B makes so much more sense

9krpmrx8

iTrader: (46)

That is the conclusion I came too as well. And then you have a proven solution for making somewhat reliable horsepower.