The set-up I engineered and how it operates is patent worthy so I can't give much details on it just yet. I will eventually spill the beans to all the NA rotor heads. It is however based on an all open port concept with shutter valves that controls everything. I finished the intake and engine April 2011 but my job is VERY demanding of my time so I haven't been able to fine tune things since. I'm also trying to catch up on some other priorities that I've neglect over these past 5 years as I had dedicated sooo much time to my 20b project. So I am having Rx7 modification withdraw. Like I said keep experimenting because it takes lots of time to perfect things.

 

Haha yep will do, Ok so a 20b, full pp ? with side port's using shutter valves ? Looking forward to it Good stuff.

 

Yea something like that!

 

Done a little bit more for the new pp manifold.



Fitted the stock TII intake this week and is running on 6port's only, Got idle at 1500rpm, 13afr's, 18* timing for now, Locked dizzy still, Lumpy idle, Not as loud as the PP haha...

 

Changed manifold slightly, Gone with the 4 runner PP lim, Added a plenum, Then fitted the 2 60mm throttle body's. Just got to get it all welded up, Trim tb flange, Get it cleaned up etc and find a tps, Air filters etc ...

 

 

Looks good!.. What throttle body's are you using?..

 

Cheers! They are from a Nissan Skyline.

 

Over the last 5month's or so i have tryed a few different intake's/block off plate's on my p-port block, Just for fun really and to have a play with a few different thing's ... Im still working on a new PP intake tho. But for now the motor is running on the 4port's.

PP idle :


6port idle :


4port idle :

 

Awesome build brother

 

Cheer's man, Have now sold the motor.

 

Wait what, you sold the motor? I've been following this for a long time and you just sold it? I really wanted to see the outcome

 

Haha, Yep sorry man it's sold, Although still in my car at the mo, My cousin is buying it off me and putting it into his rwd323 with a ida. So i will still get to drive it Should be a bit of fun for him.

 

I was so intrigued by the fact that you didn't fill the side ports. I have wandered how a pp would turn out without filling the side ports. Pros and cons of not filling them and more importantly, how an engine would run utilizing both side ports and pp intake set up it "could" be godly! Or it could not flow enough exhaust and ultimately not make any power. But it comes back to needing a dyno chart of a po with the side ports not sealed off but blocked off via the manifold. It's my future grenade engine plans for r&d purposous. I was hoping to see a dyno of this engine hehe. If he ever synod it, you should score me a copy

Thanks man, so what is the new build plan?

 

Haha Awsome, Yep will do, He plan's to, And is gathering part's for the swap as we speak .. I dont no what to do yet, I was looking at a RX8 motor swap, But im not sure on that, May just save for a while and think of somthing ... Cheer's.

 

Oh, man!
I followed this project for months, now we don't know what the dyno would say. I have bought a p-port 13B like this :

This is for different app, but I even don't know what the hp it can go, and what the best mod I can do for a reliable max out, I even don't know which year of the 13B was, any help and suggestions are welcome!

 

thanks, i'll be looking forward to seeing that dyno sheet. you do a 13b msp with gslse housings and high comp rotors. pp that thing and build a custom header. 2 55mm pp breathing with 2 side port and 2 peripheral exhaust ports. i bet that thing could clear the 350hp range at the flywheel. thats one of my future build ideas. just an idea. mazdatrix is now using the msp and gslse idea together as a boost platform. i've been thinking about the concept for a while since the msp has the water jackets back on the housings, and i have a nice clean set of gslse housing

whatever you decide to do, keep us posted good sir.

and Zebra: i think thats an airplane engine lmao. (i think you already knew that.) what im not sure about is that plenum on the exhaust wtf?

 

You are right, So my purpose is a little different: I don't need torque, but constant, reliable high rpm performance with max hp, can't afford breakdown risk, so reliability trumps performance. This one comes with no emc and colling, any suggestions which I should get? I might go with the installed ports, but after looking at yours, I might change if performance will have good boost. Also, I need to operate this engine both horizontal and vertical, that is propeller side down, so I need to add slurge pan for oil, and coollant, any idea? A lot of things, I am new, trying to absorb things, man, thanks for the input, really appreciate.

 

That's an interesting idea. My engine has 208 kg without radiator and 13 MSP 220 KG with everything except fluid with 238HP (curtainly Dyno with customerized intake and exhust only give 212hp at flywheel and stock only 183 HP). I want to see how you achieve 350Hp, I checked Mazdarix and didn't see a thing. is that you mean use old gsl se housing with 13 MSP?

 

yea i am saying use rx8 msp irons with gsl-se housing and run it as a pp with both side and peripheral exhaust ports giving a total of 5 exhaust ports instead of just 3 or 2. with a pp intake it should flow enough to break 350hp at the flywheel. it's just theory, but i know people are hitting 320hp at the flywheel with old school pp engines so speculation says that the additional exhaust ports should flow enough extra to easily achieve the 350hp mark. either that or flow too well and lose exhaust velocity and make even less power lol. i plan to try it "one day" when i have the funds to do so. i seen someone use the concept as a nitrous engine when i was down in miami.

heres the link of what i read about mazdatrix using the franken wankel hybrid. they initialy state that its rew housings but later is corrected. a good read none the less.

Rotary Radness, Mazdatrix's 13B REW/MSP Hybrid!


again i have no way to prove that the engine can do so well all motor so it's just theory. either it's going to be freaking amazing or it's going to fall on it's face, i really don't think there is an in between there lol. it was just an idea i had and found that i wasn't the first one to think of it. honestly, i wouldn't be surprised if mazda hadn't already built a version of it themselves and kept it hush hush lol.

no one will know the outcome until it has been tried. and again i am not a professional, so please don't flame lmao

 

i've heard the MSP with GSL-SE rotor housings is a 280hp engine, NA, pretty big jump over the side exhausts

 

You mean 280rwhp or flywheel? What porting are you referring to on the intake? I would think with that much exhsust flow and s pp intake the flywheel hp would be higher since people are making more than that with only pp exhaust on the older engines...hmm unless too much exhaust flow and velocity is decreased

 

i think wheel hp, although its second hand info, so take it for what its worth. i can't remember which shop it is either!

 

It's here by mazdatrix

 

no its a JDM tuner, (i think FEED), they have block offs for the MSP exhaust ports and run the GSL-SE housings on a NON turbo car.

Mazdatrix is running both exhaust ports, AND a turbo.