Nice parts! I like the quartermaster clutches in the display case I got a 7.25 8 leg at the end of last year.

 

You took the engine out of peters car and is going to be n/a 3rotor now?

 

Looking good any chance of pictures of the ports from inside the rotor housings?

I have been wondering for a while if someone was going to try 3 spark plugs. Mazda used 3 on the lemans winning engine so it's definately giving you a sharper edge on the sword you spoke of before.

What are you going to gain from running 3 spark plugs?

 

Are you using earlier housings on the pp motor? As there is no knock sensor hole?

 

Dude amazing work

 

Thanks! Yeah we like quartermater, that is going in a customers car. The other two are Tilton and Alcon.


Yep, its gone through a major transformation. Tube frame front end and also my n/a 3-rotor. Peter doesn't own it anymore either, he sold it to Matt (FDwarrior) a couple years back.


Cant take pics from the inside this time around. Not sure what the gains will be but hoping the 3% Mazda found applies here too. So possibly 15-19hp.

Good eye, they are a little bit cheaper than the later ones


Thank you

 

Okay so I may have left a couple details out on the new full p-port engine. First- Its not actually a 3-rotor. Second- Its a 4-rotor But testing them side by side will still apply. Sorry for teasing you guys a little bit!

 

Well the 4 rotor is definately going to have the edge to start with seen as its bigger but hopefully it will help you net more with the 3spp.

Does the 3 spark plugs allow you to change the timing to gain the extra HP? I don't know much about timing adjustments but have seen that adjusting timing can give you more HP or a broken engine.

 

Paint those signal scoops black inside....

Or, you will regret!

 

Looking good! Looks like the ports are pretty much the same as the ones I'm using , looking forward to see how your doing the intake and exhaust.

 

Just wondering what the size is of the Semi pp port?

 

Huh... interesting on the cooling ports in the old housings; I take it that worked out fairly well? Also, looks like the 3rd plugs are going through the dowel hole... oil bypass lines and studs or something to compensate? What sort of diameter are you at on the full peripheral ports?

Neat stuff!

 

Doesnt change the timing, but it burns the little extra volume on the far trailing side of the rotor.


Maybe I will just leave them silver....

Thanks! The intake will be pretty straight forward and cool, the exhaust wont get any photos though regrettably.


Yeah the cooling mods work excellent. The 3rd plug does go through the dowel, and a two piece dowel pin is used. We feed oil directly into each stationary gear so nothing has to change in the oil department. The Full p-port diameter is 50mm

 

this is just nuts, i wonder how it feel inside of this thing at the track, amazing work!

 

So my next question is what compression rotors are you going to be using? Are you going to use the same as before or do you think maybe an increase in compression, not by much could net any gains? Also have you gone for some custom rotors? There seems to be a few people using titanium for making rotors, either by casting it or by machining it like Carl Hayward has done here in the uk. To be tested very soon.

 

My hat is off to you fellow rotorhead...i love what you did w/ the wheels, nice & wide

 

are you going to look into the rotor housing machining that extreme rotaries is doing to the coolant passages around the spark plug area? theyve basically taken the idea (from whichever usa shop used to do it im unsure of the details) of creating turbulence aroudn the plug areas and modernised it and designed a CNC program that does the machining inside the passages and they also machine a flat on the housing to put 2x -6AN coolant feeds that are supplied by an electric pump that draws from the cool side of the radiator and pushes through another auxiliary radiator then to the feed lines.

 

It is extremely easy to drive, but all the G-forces are simply out of this world! Love it.


Compression is staying the same in the 3-rotor, might change to something different in the 4 rotors. We are on the list from mazdatrix for some Ti rotors.

We do a lot of work on the inside of the engine, and our design works great as-is

 

So when are we to expect the motors in and running?

Looking forward to the 4rotor intake system. Will you be doing similar to Mazda and having the injectors close to port or further upstream?

 

The 3 rotor is finished being assembled, and going into the nissan this weekend hopefully if we get a free moment. Start up next week maybe? The 4 rotor is still waiting on balancing and a couple other parts before assembly. The 4 rotor will replicate the 3 rotors injector placement. 1 on the bell-mouth, and 1 a couple inches away from the port.

 

Good stuff.

Did you increase the size of the semi pp on the 3 rotor?

 

The actual port is still 1", but I added a taper on the entrance. Seeing what kind of effects it has.

 

this is a wondefull threat!

I wonder about the polished rotors tho,
Issn't the fuel going to stick to it with such a fine polish?

How mutch would it cost to build me a semi pp TB intake like yours (pm me please).

 

This is hellova setup mate, wish I had the knowledge or money to get my fd so rigged! :P

 

Any updates on the crazy intake you are cookin up??