How reliable is Rx7 world's engines?
 

Like the title says. I came across this site looking for some engines and I'm curious to see if anyone has any reviews on them.

Reliability
 

I had my engine ported and built by Ernst at rx7 world. Lasted about 15 miles before car broke down. When i called he said he wasn’t a highway mechanic to go look at it. I ended up taking it to Brian at Rotorsports in Kannapolis just to find many things wrong with the car. After Brian tuned and fixed most issues engine only ran for about a week before going completely bad. I ended up taking my car to Mike at Angel motors and he took the engine apart to find a cheese port and fckd up housings.
https://cimg7.ibsrv.net/gimg/www.rx7...1c989f082.jpeg

12 or 13 motors here, keep em n/a and they're great. have a pro do it, and spare no expense, could still be risky

Christ they even painted the spark plugs hahaha.

if its an FD, you can buy a brand new engine from Mazda for the same or less money