MONZTER

Yep

Hi TBS, Yes, it does have the ability for a movable mesh, I could also apply a velocity to a specific boundry. I am currently working on a time table to phase the cam opening and closing. This software can even do combustion, but thats waaaay advanced

So a little back on topic... I have been using my new CFD software called Star CCM+. It is a really high end code, used in everything from military to F-1 - super powerful. So along with my intake; I have been working for a while now on redesigning my combustion chambers and ports in a P-90 head. The idea is to take all the new ideas being used today to increase the performance and detonation resistance in my motor (if I ever get it back from the machine shop) Basic idea is to maximize quench, swirl, and burn area. 1.) the new shape has 2 quench pads, one in the standard location, and a new one behind the spark plug where I think there is some dead area. 2.) shape the combustion chamber to produce more swirl and force the mixture towards the exhaust valve side of the chamber, where I have angled and relocated the spark plug. 3.) add streamliners to the intake and exhaust ports to again aid in swirl for the intake, and more laminar flow for the exhaust. Below is the cad model of the head and ports. Next is the head welded up and on the CNC getting the shape roughed out. It will go back in the machine when the seat, and guides are installed for a final clean pass. This is the CFD model of the complete system, plenum, runners, ports, valves, combustion chamber, cylinders. The model is actually the air space or fluid region of the flow. You have to use your imagination a bit. This link is a avi of the flow another link from the other side and one last link of the flow vectors in the chamber as you can see the flow is swirling quite nice and focusing directly under the exhaust valve where the plug now sits. Someday I actually have to stop playing, and get this all finished to see if it will run enjoy Jeff

What do the ports look like on that thing. I like it so far

I am not sure what measurment you wanted, so does this help.

Tim, I think your spot on. Funny thing is the guy does great work. Did a beutiful job on my NA motor. So I will leave it with him. I know if I call him every week it will get done. Its when you dont call it sits. The squeaky wheel gets the oil.

Ya NOS, thats frightening. It already has 130 HP and weighs less than 400 lbs. It scares me just like it is. (for now) muh hahahah BTW Called the machine shop, says it will be ready next week, I am not counting on it..

The part has been done, still have not gotten my block back from the machine shop (note to self - call machine shop) So, has not run yet. Also, I bought a new bike and have been spending time on that instead of my car. Will be back on the car real soon as I am now happy with my bike

So does this mean all of these versions are JDM, or are people just confusing them because they all look similar?

here it is

So What's with the JDM valve covers I hear people talking about. I have seen 3 different ones that are all called JDM. This one with Nissan Logo, I think in smaller letters This one with Nissan letters larger and more blocky (mine, I found in a US junk yard on a 280z) An one more I have seen with Nissan logo but made from plastic. Does anybody know the correct story??

No, Nothing new. I got it to the point where I need to get some temporary guides and seats in one chamber and flow test it to see if it is worth finishing. I have not been working on my turbo car much since I got my bike. The NA motor has been running strong. I will be getting back on it after the first of the year and things slow down. I'll keep you posted when I move on with it. MONZTER