Nice try on the MM reverse engineering efforts Nashua, however, you are on the wrong track....but your thinking is fairly sound, in the part throttle region, anyway. You see EGR is functional only in moderate load conditions. As TPS approaches 100% (nominally ~90%), the ECU commands the EGR flow to off to maximize cylinder pressure (because we all know that the hot exhaust gas recirculation system actually cools the combustion cycle as it reduces the Oxygen present and slows the flame front, reducing cylinder pressure and thus reducing power). Blocking the EGR ports would not change the WOT Dyno pulls and would cause detonation in the part throttle realm as the ECU's spark advance map takes into account the EGR effect and provides additional advance in the part throttle mild load ranges to increase response and improve efficiency. EGR's purpose, as you stated, is to reduce the production of NOX, normally produced in quantity at extreme combustuion temps. The fact that the ECU would trip a Powertrain DTC P0401 for insufficient flow is secondary here. The flow is measured by the STFT (short term fuel trim) count changing with the introduction of EGR flow into the combustion cycle. STFT is claculated from known values received from the HO2S1 B1/B2 (heated O2 sensor 1 in banks 1 and 2). If EGR is commanded on, the lift sensor feedback ckt tells the ECU that the valve responded, however, the primary O2 sensors (HO2S1) tell if the flow actually reached the combustion chambers. EGR actually richens the combustion cycle which increases the voltage of the O2 sensors. This increase is measured by the STFT table and reported to the ECU as validation of EGR flow.

Now, the MMI, as lovingly called by the board was more apptly named RES for good reason. Resonance is god and the RES had several moving parts, of which I didn't see in Scalberts design. The volume, when shaped right enhanced the torque curve in the split plenum region, but a special "flapper" valve resonated in the chamber in the combined plenum RPM range. The materials used were carbon fiber reeds from perf 2 cycle bikes, but it was how they were used that made the difference. Of note, during testing, the inlet horns were covered with screen to prevent ingestion of broken reeds when poor designs would fail and the induction vacuum would try to injest them. I've given enough info n this for now, but the cost of the RES when questioned by many, was based on there thoughts of a solid casting or billet piece of aluminum. Admittedly, I did little to change the views of the board, because, as proven by Scalbert, this is America and people will just attempt to copy someone elses work (ie; Comptech headers) and that will put pressure on future design bugets of big companies and put the small designers (me) out of business if I reveal all. The application for patent was withdrawn as the business case to equitably build this piece for the masses and sell enough to break even before the overseas copies appeared for half price fell in the red ink.

MMII, never given a representative name, was an electronically devised system that would trick certain ECU inputs to obtain certain ECU outputs. It was a harness based, "plug-n-play" system and only two copies were produced. One, on my old MDX, since removed and one on a friends 6-speed in the Greenwich CT area, where I live. It performed excellent in all climates other than sub freezing conditions. A hardware "patch" will be tried this winter andI will consider giving more info afterwards.

Finally, a crankshaft and a set of rods from the MDX bolted in place of the crankshaft and rods of a J32A2 will give you a 3.5L with an 11.?+ CR and what Type-R is driving. Same gaskets as the J32A2 as the bores are the same. However, I charged what I did for other reasons. Besides providing a new block, I went with the Odyssey based blocks (J35A4) because the cylinder walls were thicker and better resist cracking from high thermal/pressure loads. They are marginally worse at dissipating temperature vs. the spin cast design of the J32A2 but in no cases has this hindered performance in the NA configured vehicles. I weight matched all recip pieces, and did special detail work on the oiling system. I also hand assembled the engines myself, and used tools like torque-angle meters to tighten rod and main caps to exacting specs, as well as gap matched rings that were on the tightest end of the spectrum to reduce pumping loses. This little differences add up to little differences. But I know that my 3.5L's delivered a quality piece of engineering and on an all-else-is-equal basis will perform superior to the back yard speed shop "produced on a budget" 3.5L conversion.

Hope this helps you guys, till next time....

 

hmmm.....


could I ask what u would expect the gains in typeR's conv to be?

and are we allowed to ask price incase anyone here would like to go this path?

 

I would guess Type-R's car is producing in the 245WHP range and ~212 lbft of torque at the wheel. This short block cost him $2500 plus install by others

 

stick around for a little, the gear heads will have many questions for you.

 

so you decided that since you couldn't make money off the RES, you would just keep the design to yourself? that's kind of a tease, concidering how big of a deal was made of it.

you certainly can't blame scalbert for trying.

 

please stay arnd this time

 

WOW! But wait, no RES?!?! I guess for most us it had been so long in waiting, the RES eased itself into a pipedream anyways. So its completely dead huh? The info you gave is really a Godsend. Because despite many peoples good intentions there has been way too much speculation. At least we have definite answers, now. RES - RIP! Syncivic, can you really blame people for trying figure out how your innovations work then try to produce them themselves? People are just deperate for improved performance. And when those projects never came into fruition people figured the projects were probably dead and might as well expiriment. Especially since, as far as I know, we never had any definite answer as to the status of these projects. I'm sure you've figured all of that out on your own. But I can understand what you're saying about your ideas being copied and bootlegged. It's kind of like the Napster argument. I like the fact that you're trying to make these things happen, good luck. Hopefully these things will make their way into mass production. And, hopefully you'll find a way to turn the RES project into a mass produced item. But anyways thanks for the answers albeit not what I necessarily wanted to hear, at least I have some answers. Good luck!

 

well put

 

Syncivic,

First, thanks for your posting and your PM.

Second, I will prototype the EGR mod and test it on my CLS. If no CEL and no-side effects (engine knocking, etc), I will proceed to fab a machined prototype. Then, I will try to dyno tested for gains.

Third, Let me thank you again for the release of the some more insightful info on the RES and MM-II.

To make it short, here is my point of views:
1) RES: The Concept of using a "Resonating Reeds" as an amplifier of the shock waves inside the plenum is very interesting.

However, there are 2 issues.
A) To excite the resonating elements, you need some kind of force. Using the rush of intake charge to excite the resonating elements would slow the intake charge flow as a result of the kinetic energy loss of the intake charge. In fact, there is a transform of energy to the resonating elements. However at the steady state and when the resonating elements are in fact "resonating in sync i.e. in-phase " with the intake shock waves, said resonating elements can act as an amplifier or like a "mini-Supercharger" for the intake charge.

B) Since each resonating element would resonate at a certain inert frequency (depending on the actual material of the element, its length, width and thickness and shape), you need multitude of such said resonating elements so each would resonate in phase at different rpm range. Also, since the out-of phase elements would dampen the resonating elements, the optimum design solution is not easy to find. It is possible but not easy.
Finally, a simple design can use single resonating element that resonate at the peak HP rpms to enhance the gains of HP at the peak. This might work but again, some energy would be lost till we reach the steady state.

2)MM-2: All what I can say, it is another piggy-back ECU mod, like Unichip, V-AFC, etc., or am I wrong?

Nashua

 

i do have a question doug, since you cannot produce RES in mass quantities, would you be willing to make a small batch to market to those here on the boards? same going with mmII, would you be willing to replicate and sell to the forum. this way you can possibly make up for the time and money you invested already, just everyone here wouldnt want your innovations to goto waste.

 

Hold on there, I didn't copy anything from a viable product being produced. I took a chunk of aluminum and made a larger volume plenum, that is all. And this was after the presentation and the seemingly revocation of the RES. Heck, I even offered to sign and NDA which went unanswered. But regardless, a personal project and a marketing campaign are two distinct projects.

At no point did I want to copy a design which you created and was going to produce; I wanted to be first in line for a production unit. Only after it was clear it was never going to be made did I embark on this simple project. After which I admitted there must have been more to it.

So to clear things up; a product was presented with significant hype but later found not to be financially viable to produce. This was then I embarked on a personal project which failed; nothing more.

 

scalbert,
What do you think about the new info on RES?

 

I haven't had the chance to read through everything so far; hopefull in the next day or two though.

 

Soooooooooooo.... RES is DEAD? say it ain't so.

 

So Doug, IS RES DEAD?#@$@?#?$ WE WANT TO KNOW!!!!

 

now where can I find 2"x6"x3mm Al Sheet?

 

Relax Scalbert, I PM'd you, I wasn't implying your ultimate intentions, and I can appreciate your get it done attitude, and watching you machine that piece, it reminded me of the starting blocks of the project. I was a bit suprised at the lack of torque produced by your piece, the shape must have created an "interference" type turbulence in the plenum which offset the gains of increased plenum volume. Perhaps you should have looked at the shaping of the riser as it meets the center section of the plenum. Turbulence and tumble in the air column are good only in the combustion chambers, not so much in the intake where this cavatation can actually rob HP, aka the "320HP" Cobra that was recalled for low HP as the manifold had excess flashing that disturbed flow creating "cavitation".

 

SYNCIVIC... Do you have a 3.5L motor in your car with both the MM's ??

 

Comments must stay on topic or I am deleting more of them.

Doug, what if the members of the board fronted you some $$ as a down payment to get the RES into production? How much $$ would you need?

 

so is RES completely dead????????

 

^

 

Doug,

Thanks for getting back into this. I tried to stay up on this through Bitium, but military duties have taken him away from the boards.

I hope that the past year has resulted in the following which will allow you to revist your effort to release a product.
- more CL/TL owns which hopefully means more buyers
- improving economy and hopefully that means both more buyers and or more competition to produce your product
- technology advancements . .

In regard to MMII, perhaps you can join with Unichip and get some royalties or something by helping with their design. Just a thought.

Anyway, many of us are still hoping something will happen with this . . based on the early dynos this is just what many of of want.

Ruf

 

so are donations gonna be made???

 

Let us know if anything like this could be possible, as I know that are people that want and will do what it takes to bring this modification into a reality for more than one or two people.

 

anything? hellloooo?

 

geez this thing has been such a horrible tease.

i remember a few years ago when i snapped the pic of the outer cover of this thing at SEMA.

 

no doubt.....