I have my injectors maxed out at 260 whp @ the stock pressure.
It also depends on what A/F ratio your car is tuned for.
They tuned mine to run about 12.2-12.5:1 so I wouldnt melt anymore pistons.

So, I'm moving up to 550's when I get the car tuned for 20 psi.

 

given all this, i wonder why the hell i was at 85% duty cycle, and 90PSI with 370cc injectors to make 220whp. doesn't add up... that's equivalent to 63PSI on the 440s, which you guys are saying will be good for a LOT more than 220whp!

and this was at a not-too-safe 12.5:1 with 13.0:1 in the midrange.

parasitic drag of the SC?


[Modified by schwett, 2:12 PM 4/5/2002]

 

370 @ 90psi = roughly 535cc
440 @ 60psi = roughly 482cc

 

right, by my math, sqrt (90/43) * 370 = 535cc, and sqrt (63/43) * 440 = 533cc. how do you get 482 at 60psi? i get 520cc.

on the other hand, i had to lean it out up top since i couldn't increase the pulse width in the midrange with my previous fueling setup. perhaps now with a standalone i will be able to richen it in the middle and run a slightly lower pressure. 60psi seems a lot to me without having a rr fmu.... it means my static pressure will be around 50psi, which is greater than stock.

 

sorry, 60psi = 520

For some reason I divided by 50 instead of 43....

 

so where do you think i'll be safe at? in terms of fuel pressure, a/f ratio, and boost..... i know there are soooooo many varibles but i'm going to need to know this stuff come dyno time