How much HP?
#1
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Hey guys, just got my FM II link put on. Am running about 10 psi right now. Was wondering what yall think I could run at 15 psi with a good tune? How safe would it be. I've seen some post where some of yall have setups running 15 psi and saying that it runs great. Going to tune the car a bit more and get it dynoed at 12 psi before I try to boost higher. I have a 94 NA with a brand new crate motor that has about 8k miles on it.
#2
Elite Member
iTrader: (9)
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,160
Total Cats: 6
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Hey guys, just got my FM II link put on. Am running about 10 psi right now. Was wondering what yall think I could run at 15 psi with a good tune? How safe would it be. I've seen some post where some of yall have setups running 15 psi and saying that it runs great. Going to tune the car a bit more and get it dynoed at 12 psi before I try to boost higher. I have a 94 NA with a brand new crate motor that has about 8k miles on it.
With a good open exhaust and tune...~200-220 maybe if not more @ 12psi? <-that sound about right?
#4
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Plugs and wires don't add power... they restore it. If your engine only has 8K miles on it I don't imagine that a tune up will do you any good. 260-270whp from an FM2 kit is doable, but that really pushing the efficiency of the turbo (depends on wether you have the gt25 or 28 really). Is this their newest kit?