FD3S Non Turbo Engine??

[Timmy]

On the 13b-re from a cosmo has larger runners in the LIM so can flow more.

[BlitzBoy]

Intake runners are bigger,But the Plenum is an older collector design wheres as the FD uses a Dynamic pressure design, Intake ports are bigger, exhaust ports are smaller then the REW, this was done to give more torque but less outright bhp, the bearings are better on the REW then the RE I have been told but need to confirm that.
So if you going to use a RE make sure you mod the exhaust ports to the same size as the REW.

The main benfit of the RE is that the plates have more meat and are bigger ports then the REW plates

[BlitzBoy]

and to be honest a modded REW and a modded RE produce the same amount of power

[shafster]

right im popping over now to take some pics and look at this engine of his...... no idea of what a cosmo engine looks like but hopefully the pics will shed some light

[Kevin]

Garage R in Japan had a PP ported non turbo FD forsale a few years ago.  Basically the 13B without the turbos.  Looked odd as hell as so much empty space in the engine bay.  Cant really see the point in it myself but it can be done.

[shafster]

problem solved. my mate is a plank

it was an rx8 engine..... and he calls himself a specialist lol

[Kevin]

Awesome !

I found my original thread about it from 2006, unfortunately the pics are long gone.

http://www.mazdarotaryclub.com/forums/showthread.php?t=31144

[jackaleks]

i\'ve seen picture of a PP 13b in an fd with some massive webers on top somewhere (no turbos of course). i\'ve always liked the idea of carbs on a rotary, something \'pure\' about it!

[Kevin]

I would PP & carb a non turbo FC but wouldnt bother with FD personally.  I know what you mean about pure though.