Scalliwag

There is more than one way to cook a chicken and more than one way to make a peripheral port. What are some of the things you have seen and/or tried? Pictures are even better. Carb types, throttle bodies, etc.
Anybody out there ever tried perpheral ports as secondaries on a street (wink-wink) engine.
I have seen some interesting stories of sliding throttle mechanisms and telescopic ports.
Show and tell.

Moxeys93RX7

man you are really going all out on some of these projects. it's nice to see some people go away from the norm. even if it doens't work you might get ideas for somehting else. i don't really have anyhting but try talking to rob @pineapple racing. that guy knows his **** and has built every kind of rotary there is. he is also a cool guy just to bullshit with

Scalliwag

This is an area that people have really spent a lot of time on. When I start resurfacing housings for others I will probably see some wild things come in. I'm sure that alot of people will not want pictures of their porting posted. You have to honor that. But here people that are will to show their work off can give us a view of their creativity.

protlewski

the telescoping throttle bodies was on the R26B that was in the mazda that won le mans in 1991. here is a pic

Scalliwag

Badass!

setzep

Is the flywheel really on that end of the engine or was the picture just reversed?

Scalliwag

That is an engineering marvel!

rotarygod

iTrader: (1)

Picture is reversed. Too bad the racing sanctions banned the telescopic intake the following year.

setzep

It's too bad those blue caps are over the exhaust ports, It would be intresting to see what they look like.

TYSON

I think this may be an example of what you're looking for. I found this here on the forum somewhere.

rotarygod

iTrader: (1)

I've heard of it being done but never seen it. Great picture man!

rx7withnos

WHAT DOES A peripheral PORT DO ;AND WHAT IS THE DIFF.???

rotarygod

iTrader: (1)

A peripheral port is cut into the periphery (hence the name) of the rotor housing and not in the end housings. The exhaust ports are peripheral ports. The standard intake ports are side ports. Peripheral ports are open for a longer duration and flow much better. They are fantastic for high rpm use. The downside is that they have zero low-mid range power, and have a very high idle. A peripheral port also need little to no muffling of the exhaust to work good. There is also a very high amount of port overlap which dilutes the incoming air with exhaust gasses at lower rpms. This is what contributes to the poor low end. Great for race use but unusable for street use unless you are an Australian! Gotta love those guys. Naturally aspirated peripheral port engines can get up to about 350hp but they have to send the redline sky high to do it.

Scalliwag

That is a helluva good looking motor!

Node

iTrader: (1)

thats a SCOOT engine.
They're the ones w/ the 710RWHP 2 rotor FD.
Mucho Power
I forget what kind of turbo they use though.

TYSON

That's a T51, I think the HKS kit. There is a video of that dyno run around. Seemed to take about a half hour for that turbo to spool!

REVHED

Full PP turbo RICE RACING style...

REVHED

damn forum

setzep

All that work to put a cast exh manifold on!? Why don't you have him make a exh manifold too while he's at it?


Oh yeah, Looks good, nice intake!

Scalliwag

That's cool Revhed. Is it yours?

fdracer

why's the side port still there?

rpm_pwr

hey - that plenum is made out of cardboard!

-pete

REVHED

Nah, I wish it were mine. It's one of RICE RACING's.

As for the side port, you can't quite tell in the pic but it's obviously been filled in.

Scalliwag

I think that is an attempt to either hide a design of the plenum. Or else that is a really lame *** attempt to makke one!
There is definately a story behind that. There is just too much nice work on that motor for the cardboard to be passed as part of the finished work.
It is a nice looking motor.

Scalliwag

The more I look at the picture the more I think it is a mock up for a project. It was probably just tossed on the stand to get some measurements or something.
With the e shaft out of it it was not being assembled at this poiny obviously. Maybe the plenum was being worked out. Cardboard makes for good modeling material.