FE3... [sarcastic]You might as well look for an SR16VE-N1.[/sarcastic]
http://members.aol.com/solomiata/MX5Engine.html
http://members.aol.com/solomiata/BP8.html
http://members.aol.com/solomiata/FE3.html
back when I had delusions of fixing up the PAX 323, I thought about that swap.
Its way too hard to find. Great engine though. Happy with a turbo like fish in water.
Lets not talk about parts.
A ZL-VE would be a nice match to the PAY 323. 130 Hp and it shouldnt be as heavy as an SR20. Gas consumption should be ok too. Better than your E5. Due to the gearing, Mazda's burn a bit more gas than the average car, but the performance you get.... Faiz auto supplies had one for $7500.
A bit expensive in my book.
And I very much insist that you upgrade the brakes.
BF 323 brakes suck big time.
A common upgrade in rallying circles was using the following -
1989 Mitsubishi Galant VR4 front rotors (10.5 inch)
90-94 BG Calipers (Designation 14 22V)
Longer studs.. RX7 (not sure which model)
I think i still have the 90-94 calipers and an extra BF hub. Didnt get around to buying the rotors.
I also upgraded the master cylinder... used a 1997 323 master cylinder and booster. (15/16) inch as opposed to the stock (7/8) inch.
Was a direct bolt in. Intention was to eventually get the 929 1 inch master cylinder. Didnt get that far though.
DO NOT PUT DISC BRAKES IN THE REAR.
The BF 323 had a faulty rear caliper. With age, an internal pin wears and you lose hand brake functionality. Been there.
All the links with the brake upgrade seem to have dried up, so PM me if you want more details.