EFR 7163 T25 AR .85
#6
I put one on a j35 with non ideal manifolds (stock) and it gets to ripping pretty much full tilt at 2,000 RPM, enough to blow tiny 13" tires off the dyno.
Can't imagine it'd be fun in a miata, but EFR makes all those handy flow calculators so you don't even have to do it the old napkin way. Plot it out, see what it says...
https://www.borgwarner.com/matchbot/
Can't imagine it'd be fun in a miata, but EFR makes all those handy flow calculators so you don't even have to do it the old napkin way. Plot it out, see what it says...
https://www.borgwarner.com/matchbot/