how much boost can a stock fd handle
 

same guy, newbie...i fixed my other problem by getting a mbc but when i aidd more fuel and a power fc, how much boost can i get with the stock turbos on the stock engine?

do a search. This is asked everyday.

I don't recommend going past 15 psi for a variety of reasons.

This might help;
 

https://www.rx7club.com/showthread.p...ax+boost+twins

"14 psi = Max efficiency of Stock Turbo's
10 psi = Stock Boost
12 psi = JDM Turbo Spec"

https://www.rx7club.com/showthread.p...ax+boost+twins

"You really cant any higher then 10 psi safely without a new fuel setup (fuel computer at least). A power FC should let your un about 12 psi safely if tuned."

"I've been running 13 psi with a PowerFC with no problems. But it's more than just upping the boost. You'll need to mod the intake and exhaust as well."