Interesting. I am running a cxracing kit making 270whp at 9psi.
What are your numbers at 15psi?

I do want to increase the boost this year

 

Im not sure what my numbers are at 15psi, when it was on the dyno we had a problem where the boost wouldnt go over 3psi, i have a manual boost controller n we turned n turned it up, boost would not increase past 3psi, about a week later my friend found the problem why boost wouldnt increase, the nipple bit on the wastegate that the silicone hose goes on for the boost controller, the nut was to tight, we loosened it slightly and wound the boost up and it went up. i made 190whp on 3psi and the power was dropping off at 4000rpm. I would say im making at least 300whp now easy. The other suprising thing is, my car does not loose traction at all on 15psi

 

Made 406whp safe on stock block with golden eagle block guard . Blew it when I upped the boost to make more power

 

Ive been doing some re-search and ive gone thru some trial and error with parts for my car which ive learned alot from. But ive found very few stock K20A3 pushing above 400HP and by the looks of it the 2 that ive found had modified the head such as homeboii slowrsx with the built head with supertech everything lol. Also there was a video on youtube that is couple years old that had a k20a3 stock bottom end with a vtec killer set up valvetrain of a k20a2, turbo making about 416hp. Now with my set up i dont think i will push the engine beyond 400 just because there is not alot of evidence that it can hold that power for too long, but it is possible to make that type of powerband. So this is my set-up right now on stock internals K20A3:

Turbonetics 60 Trim Turbocharger w/ Intercooler
T3/T4 Cast Manifold
Turbosmart Wastegate
FIC 1000cc Injectors
AEM 340cc Fuel Pump
Stock Clutch
Premium 93 Octain
PRB Intake Manifold
REV HARD Blow Off Valve
Thermal R&D 3in Exhaust

Made 275HP at 15PSI of Boost

The only downfall of this was the clutch, it was giving out and slipping. Also the fuel duty cycle was getting too high and the reason behind this was i wasnt running a fuel return setup. The oem fuel pump assembly has a built in restrictor that needs to be bypassed and the car needs to run a external fuel pressure regulator to increase fuel pressure without maxing out the injectors. The new setup will be:

Competition Clutch Stage 4
Exedy Light Weight Flywheel
RBC Intake Manifold w/ Blox 70mm Throttle Body
Deatschworks Fuel Return Kit
E85

So with this we should be making about 350hp without raising the boost pressure, just running E85. But we shall see once i finish it up


UPDATE: With all the new upgrades and running E85 fuel without opening the engine (stock internals) the RSX made 340 HP / 300 Torque at 20psi of boost. The Tuner mentioned that my intercooler & piping were restricting it from making more power due to the fact that more boost pressure didnt make a difference in the powerband. Its when he lowered the boost pressure that made it gain some power. Here is the link to the tuners video, their is 2 parts to the video but i already described the previous powerband.

 

What is your mpg with e85?