Just curious. With the mods below I'm hitting 9psi easy. My wideband o2 sensor shows me running at 10.6 - 11 afr. I tried to see what my afr would be if I raised my boost to 10psi. It showed high 10's to mid 11's. If I were having a drop in fuel pressure, wouldnt my afr been more lean at the higher boost? Does that mean that I have a waaaay rich tune that I can boost higher? I am eventually going to get the return fuel kit, but i'm looking to see what I can squeeze out of her before I drop that extra grand. Any thoughts?

-Blaise

 

You techincally could run a little more boost to compensate but I would ber VERY careful with that...

 

its not worth it... you gotta leave room for your margin of inconsistency. on piggybacks you can see up to an entire point difference in A/F depending on temperature variance... not to mention what if you turned up the boost a little and then it spiked a little more.

not worth it IMHO, but its your ride!

 

but according to the current readings, I should be okay between 9-10psi...correct?

 

9 psi is safe with an AFR less than 12. Most turbo kits go a little overboard (to cool down the temperature) and put more fuel in. Most of the designers place the fuel map between 10.5-11.5. I would leave it alone - you are running safe. If you go higher than 9 psi, talk to people whe have done it SEVERAL times before you do.

 

I agree with everything said..and yes if your AFR is in the 11s at 9 PSI you are fine.