Thanks for the size info, this will make ordering the materials a lot easier.



I had no idea that's how the fuel system worked...how does that even make sense? Do you have more pics of this setup?



I don't even think I have FPR...I mean, I do have a GS. https://www.nopistons.com/forums/pub...IR#>/smile.png

Here is a little diagram I whipped up for you.



If you have the stock fuel rails then you have a fuel pressure regulator. It's the thing on your secondary rail on the firewall side.

Sweet drawing dude, thanks a million.

Why did you go with steel lines instead of AN? Is that what's best for fuel? Did it come in a coil and what size is it?



I've got more questions if you'd like...



Such as, what are the advantages of your fuel setup compared to the stock one, and why did Mazda even do what they did with one rail receiving fuel before the other?



It just occurred to me that I have no fuel lines for the motor at all!

all the fuel stuff is sitting on top of the engine, silly

Negative, my engine didn't have any of that assembled, it was all in a box. https://www.nopistons.com/forums/pub...#>/biggrin.png

Another thought - anyone know if the eccentric shaft oil pellet mod applies to the Cosmo engine? I would assume so.

yeah 86+

All 86+ engines, which includes the RE you have.